USER MANUAL

MODELS:
AFM-20DSP, AFM-20DSP-LE,
AFM-20DSP-AEC
20-Port Audio Matrix

P/N: 2900-301204 Rev 3 www.kramerAV.com

 Kramer Electronics Ltd.

Contents
Introduction 1
Getting Started 1
Overview 2
Typical Applications 4
Defining AFM-20DSP 5
AFM-20DSP, AFM-20DSP-AEC Front Panels 5
AFM-20DSP-LE Front Panel 5
AFM-20DSP/LE/AEC Rear Panels 6
Installing AFM-20DSP 8
Connecting the 20-Port Audio Matrix 9
Connecting AFM-20DSP 9
Connecting AFM-20DSP-LE 11
Connecting AFM-20DSP-AEC 12
Connecting to AFM-20DSP via RS-232 14
Operating and Controlling AFM-20DSP 15
Operating via Ethernet 15
Using Embedded Webpages 18
Accessing the AFM-20DSP Webpages 19
Using the Top Status Bar 19
Viewing the Matrix Area 21
Processing Audio Signals 22
Selecting Output Signals to Route to Amplifier Outputs 22
Linking Analog Inputs and Outputs 23
Processing a Signal 24
Routing Inputs to Outputs 37
Mixing Audio Signals 41
Defining Audio Settings 44
Defining Video Settings 45
Defining AEC Settings 46
Auto Mixer 50
Restarting and Resetting the Device 53
Restarting the Device 53
Resetting the Device 53
Defining Settings 54
Importing/Exporting Global Settings 54
Setting Access Security 54
Defining Communication Settings 55
Performing Firmware Upgrade 56
Setting Date and Time 57
Configuring Device Automation 57
Viewing Device Information 58
Upgrading Firmware 59
Technical Specifications 60
AFM-20DSP Technical Specifications 60
AFM-20DSP-LE Technical Specs 61
AFM-20DSP-AEC Technical Specifications 62
Default Communication Parameters 64
Default AFM-20DSP EDID 64
Default AFM-20DSP-AEC EDID 66
Protocol 3000 68
Understanding Protocol 3000 68
Protocol 3000 Commands 68
Result and Error Codes 86

AFM-20DSP – Contents i
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Introduction
Welcome to Kramer Electronics! Kramer Electronics provides a world of creative and
affordable audio and visual solutions for the AV industry. At Kramer, we go beyond the box
with end-to-end solutions that blend cutting-edge cloud technologies, advanced software, and
dependable hardware.

Getting Started
We recommend that you:
• Unpack the equipment carefully and save the original box and packaging materials for
possible future shipment.
• Review the contents of this user manual.

To check for up-to-date user manuals, application programs, and if firmware upgrades are
available (where applicable) for your device, go to:
• www.kramerav.com/downloads/AFM-20DSP
• www.kramerav.com/downloads/AFM-20DSP-LE
• www.kramerav.com/downloads/AFM-20DSP-AEC

Achieving the Best Performance

• Use only quality connection cables. We recommend Kramer high-performance,
high-resolution cables to avoid interference, deterioration in signal quality because of
poor matching, and elevated noise levels (often associated with low quality cables).
• Do not secure the cables in tight bundles or roll cable slack into tight coils.
• Avoid interference from nearby electrical appliances that may adversely influence signal
quality.
• Position your Kramer AFM-20DSP, AFM-20DSP-LE, AFM-20DSP-AEC device away
from moisture, excessive sunlight, and dust.

Safety Instructions
Caution:
• This equipment is for inside building use only. It may only be connected to other
equipment that is installed inside a building.
• For products with relay terminals and GPI\O ports, refer to the permitted rating for an
external connection, located next to the terminal or in the user manual.
• There are no operator serviceable parts inside the device.

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Warning:
• Use only the power cord that is supplied with the device.
• Before installation, disconnect the power and unplug the device from the wall.
• Do not open the device. High voltages can cause electrical shock! Servicing by
qualified personnel only.
• To ensure continuous risk protection, replace fuses only according to the rating
specified on the product label located on the bottom of the device.

Recycling Kramer Products

The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce
the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected
and recycled. To comply with the WEEE Directive, Kramer Electronics has made
arrangements with the European Advanced Recycling Network (EARN) and will cover any
costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on
arrival at the EARN facility. For details of Kramer’s recycling arrangements in your particular
country go to our recycling pages at https://www.kramerav.com/il/quality/environment.

Overview
Congratulations on purchasing your Kramer device 20-port matrix device.

Each model listed in this User Manual is a high-performance, multi-channel DSP, professional
audio matrix switcher with 20 analog ports that can be configured as inputs or outputs
according to preset I/O configurations. In addition, each device includes a comprehensive and
user-friendly graphic interface that makes configuring every detail of your audio system
intuitive and easy.

AFM-20DSP includes multi-channel DSP, built-in 2x60W@8Ω and 1x120W@70V / 100V

power amplifier, 4x4 Dante interface, HDMI™ embedding and de-embedding, and S/PDIF.

AFM-20DSP-LE (Lite Edition), is a “lite” version of AFM-20DSP without Dante, HDMI, AMP,
and S/PDIF.

AFM-20DSP-AEC (Acoustic Echo Cancellation), the device expands the AFM-20DSP

capabilities with the addition of Echo Cancellation, Noise Reduction, Comfort Noise
Generation, and an USB type B port.

The following table shows the features of each device:

Device Name Maestro Flex I/O Dante HDMI Amp S/PDIF AEC USB
AFM-20DSP Yes Yes Yes Yes Yes Yes No No
AFM-20DSP-LE Yes Yes No No No No No No
AFM-20DSP-AEC Yes Yes Yes Yes Yes Yes Yes Yes

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Most of the information included in this user manual is relevant to AFM-20DSP,

AFM-20DSP-LE, and AFM-20DSP-AEC.
Sections referring to Dante, HDMI, S/PDIF, and amplifier ports (in the embedded webpages
and Protocol 3000 sections) are not relevant to AFM-20DSP-LE.
Unless specified otherwise, AFM-20DSP or “device”, when used by itself throughout this
manual, refers to all three devices.

Exceptional Quality
• High-Performance, Professional Audio Matrix Switcher – Professional, studio grade
signal conversion technology, including the latest generation 32-bit advanced Digital
Analog Converter architecture to achieve excellent dynamic performance and improved
tolerance to clock jitter. Maintains the quality of the original audio signal with selectable
sampling rates up to 96kHz. Flat frequency response, unmatched sonic performance,
excellent signal to noise ratio, and extraordinarily low distortion levels.
• Multi-Channel Processing – Provides DSP (Digital Sound Processing) that enables
simultaneous processing of all input and output signals.
• Programmable – Supports up to 10 global presets per I/O configuration plus 10 mixer
snapshot presets.
• Audio de-embedding is for AFM-20DSP and AFM-20DSP-AEC only – It de-embeds the
audio signal from the HDMI input for routing to any of the outputs or for routing to the
loop output.

Advanced and User-friendly Operation

• Intuitive and Comprehensive Configuration and Control – Through a powerful, user-
friendly graphic interface, set volume (gain and attenuation) and DSP for each input,
execute routing, select line in, mic in, phantom power or line out on each port, configure
master level, and more.
• Convenient Control – Through the user-friendly embedded webpages and RS-232 serial
controller, control signal routing, independent volume.
• Easy, Cost-Effective Maintenance – LED indicators for main power, line in/out, mic in,
clipping (power amp, Dante sync, and HDMI for AFM-20DSP only), enable easy local
maintenance and troubleshooting. Local firmware upgrade via the USB type-A port
ensures lasting, field-proven deployment.
• Built-in Power Amplifier for AFM-20DSP and AFM-20DSP-AEC only – 2x60W @ 8Ω and
1x120W @ 70V / 100V power amplifier.
• Easy Installation – 19” enclosure for rack mounting a device in a 1U rack space with
included rack ears and universal 100-240V AC power connection.
• Firmware Upgrade – Ethernet-based via software upgrade tool.

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Flexible Connectivity
• Wide Range of I/O Formats:
Device Analog 4x4 Dante HDMI HDMI S/PDIF USB
Ports Interface Input Output Input

AFM-20DSP 20 ✓ ✓ ✓ ✓

AFM-20DSP-LE 20

AFM-20DSP-AEC 20 ✓ ✓ ✓ ✓ ✓

• Maximum Flexibility:
▪ AFM-20DSP: use the default 12x8 I/O matrix configuration or select one of the preset
analog I/O configurations.
Route any input to any output, even between different formats (for example, route an
analog input to an S/PDIF output); control volume and DSP per port; route any of the
ports to the power amplifier.
▪ AFM-20DSP-LE: use the default 12 x8 I/O matrix configuration or select one of the
preset analog I/O configurations.
▪ AFM-20DSP-AEC: use the USB audio as a stereo speaker or operate as an audio
line-in or microphone for an audio recorder application or call conferencing.

Typical Applications
AFM-20DSP is ideal for the following typical applications:
• Conference rooms and auditoriums.
• Government, live events, and healthcare.
• Large corporate connectivity systems.

Controlling your AFM-20DSP

Control your AFM-20DSP by RS-232 serial commands transmitted by a touch screen system,
PC, or other serial controller, or via the Ethernet with the use of built-in user-friendly
webpages.

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Defining AFM-20DSP
This section defines AFM-20DSP/LE/AEC front panels.

AFM-20DSP, AFM-20DSP-AEC Front Panels

Figure 1: AFM-20DSP and AFM-20DSP-AEC Front Panel

AFM-20DSP-LE Front Panel

Figure 2: AFM-20DSP-AEC Front Panel

# Feature Function
1 STATUS LED Indicates system status:
Almost 3 cycles of red/blue/off/green Flashing green when application is
LEDs flashing in sequence for about initializing.
30 seconds when system is starting Green when system is ready for
up, and the application has not been operation.
launched yet.
2 PORTS LEDs Indicate port status:
(1 to 20)
Green when an input signal is Red when in clipping state.
present, and the port is defined as Orange when in limiting state.
line in. Off when there is no signal on the
White when defined as line out. input.
Blue when defined as mic in.
3 IN OUT DANTE™ Indicate Dante signal status:
LEDs (1 to 4)
Green when a signal is detected. Orange when in Limiting state.
Red when clipping occurs. Off when no signal is detected.
4 HDMI™ EMBED Turns green when an analog audio signal is associated with the HDMI OUT
LEDs signal. Otherwise remains OFF.
DE-EMBED Turns green when the HDMI IN audio signal is present. Otherwise remains
OFF.
5 IN OUT S/PDIF LEDs Indicate S/PDIF status:
Green when a signal is detected. Off when no signal is detected.
If a signal is detected only on one channel, either left only or right only,
the status LED turns green.

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# Feature Function
6 CH 1(L)/CH 2(R) Indicate amplifier signal status:
AMPLIFIER LEDs
• Green when a signal is detected. • Off when no signal is detected.
In the webpage, Ch1 and CH2 are referred to as AMP 1 and AMP 2,
respectively.

AFM-20DSP/LE/AEC Rear Panels

Figure 3: AFM-20DSP Rear Panel

Figure 4: AFM-20DSP-LE Rear Panel

Figure 5: AFM-20DSP-AEC Rear Panel

# Feature Function
7 PORTS 3-pin Interchangeable balanced mono audio ports. Connect to an audio source or
Terminal Block acceptor in one of 7 selectable I/O configurations: 16x4, 14x6, 12x8, 10x10,
Connectors (1 to 20) 8x12, 6x14, 4x16.
Each port can be defined as line in, mic in, mic + 48V in, or line out.
8 USB AFM-20DSP can process the USB audio as a stereo speaker or operate as
an audio line-in or microphone for an audio recorder application or call
conferencing.

When the AFM-20DSP is connected to a computer via USB-C:

• In the computer’s Settings > Manage sound devices > Output devices,
the AFM-20DSP USB shows as “Speaker USB AUDIO CODEC”.
• In a computer recoding application, the audio input settings for AFM-
20DSP show as “Line USB AUDIO CODEC”.
Important:
• The computer’s “Output” device (such as speakers) shows in the AFM-
20DSP embedded webpages as a USB Digital “Input”.
The computer’s “Input” device (such as a microphone) shows in the AFM-
20DSP embedded webpages as a USB Digital “Output”.
9 HDMI™ IN Connector Connect to an HDMI source for de-embedding the audio signal (the video
signal is passed through to the output).
10 HDMI™ OUT Connect to an HDMI acceptor for embedding an audio signal from the matrix.
Connector

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# Feature Function
11 S/PDIF OUT RCA Connect to a digital stereo audio acceptor.
Connector
12 S/PDIF IN RCA Connect to a digital stereo audio source.
Connector
13 SPEAKER OUT Outputs two selected audio signals in two channels.
For Lo-Z: connect stereo output to Lo-Z speakers: L+ and L- to the left
speaker; R+R- to the right speaker.
For Hi-Z (70V or 100V): connect Hi-Z and COM to mono Hi-Z speakers.
14 Dante PoE RJ-45 Port Connect to Dante audio via the network. Provides 4 Tx channels and 4 Rx
channels.
By default, DHCP is enabled.
15 RS-232 3-pin Terminal Connect to a PC/serial controller to control the device.
Block Connector
16 ETHERNET RJ-45 Connect to a PC via a LAN to control the device and for firmware upgrade.
Connector
17 Mini USB Connector Connect to your PC to control the device.
18 RESET Recessed Press and hold for about 5 seconds to reset the configuration to its default
Button parameters.
19 Mains Power Plug in the power cord.
Connector and Fuse
20 POWER Turns the device on and off.
Power Switch

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Installing AFM-20DSP
This section provides instructions for installing AFM-20DSP. Before you start the installation,
make sure that the environment is within the recommended range:
• Operation temperature – 0 to 40C (32 to 104F).
• Storage temperature – -40 to +70C (-40 to +158F).
• Humidity – 10% to 90%, RHL non-condensing.

Caution:
• Install AFM-20DSP before connecting any cables or power.

Warning:
• Ensure that the environment (such as maximum ambient temperature and air flow) is
compatible for the device.
• Avoid uneven mechanical loading.
• Appropriate consideration of equipment nameplate ratings must be used to avoid circuit
overload.
• Reliable earthing of rack-mounted equipment must be maintained.

To mount the AFM-20DSP in a rack

Attach both rack ears by removing the screws from each side of
the machine and replacing those screws through the rack ears, or
place the machine on a table.

For more information, go to www.kramerav.com/downloads/AFM-20DSP.

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Connecting the 20-Port Audio

Matrix
This section describes how to connect the AFM-20DSP, AFM-20DSP-LE,
andAFM-20DSP-AEC devices.

Connecting AFM-20DSP
Always turn off the power to each device before you connect it to the AFM-20DSP. After
connecting your AFM-20DSP, connect its power and then switch on the power to each
device.

Figure 6: Connecting to the AFM-20DSP Rear Panel

To connect AFM-20DSP as illustrated in the example in Figure 6:

1. Connect these audio sources to the PORT balanced mono 3-pin terminal block
connectors 7 (port I/O is set to 12x8 in this example):
▪ Microphones to ports 1 to 9.
▪ The audio output of the Kramer VP-444 scaler to port 10.
▪ An MP3 player to ports 11 and 12.

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2. Connect the PORT balanced mono 3-pin terminal block connectors 7 (port I/O is set to
12x8 in this example) to the following audio acceptors:
▪ Ports 13 and 14 to powered speakers (for example, Kramer Tavor 6-O).
▪ Port 15 to a power amplifier with speakers.
▪ Ports 16 to 20 to audio receivers
3. Connect the HDMI connectors as follows:
▪ A source (for example, a Blu-ray player) to HDMI IN 9 .
▪ HDMI OUT 10 to an acceptor (for example, a display).
4. Connect the S/PDIF digital audio ports as follows:
▪ A source (for example, a Blu-ray player to S/PDIF IN 12 .
▪ S/PDIF OUT 10 to an acceptor (for example, an audio receiver).
5. Connect the SPEAKER OUT Hi-Z OUT or Lo-Z OUT 4-pin terminal block connector 13
as follows:
▪ For Hi-Z connection: connect Hi-Z and COM terminal blocks to the + and – terminals
of a mono speaker (for example, the Galil 8-C ceiling speakers, daisy chained).
The speakers either output the left side (L+, L-) of the audio input or the stereo input
reduced to a mono signal (see Defining Audio Settings on page 44) .
▪ For Lo-Z connection: connect the L+ and L- connectors to the left-side speaker (for
example, Yarden 6-O) and the R+ and R- connectors to the right-side.
6. Connect the Dante RJ-45 port 14 to up to 4Tx and for Rx audio channels via the
network.
7. Connect the RS-232 3-pin terminal block connector 15 to the RS-232 port on a
controller (for example, a laptop) to control the AFM-20DSP.
8. Connect the ETHERNET RJ-45 port 16 to the Ethernet to control the AFM-20DSP and
use for firmware upgrade.
9. Connect the mini USB connector 17 to a control device (for example, a laptop) to
control the AFM-20DSP.
10. Connect the power cord to the AFM-20DSP mains socket 19 and to the mains
electricity (not shown in Figure 6).

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Connecting AFM-20DSP-LE
Always switch off the power to each device before connecting it to your AFM-20DSP-LE.
After connecting your AFM-20DSP-LE, connect its power and then switch on the power to
each device.

Figure 7: Connecting to the AFM-20DSP-LE Rear Panel

To connect AFM-20DSP-LE as illustrated in the example in Figure 7:

1. Connect the following audio sources to the PORT balanced mono 3-pin terminal block
connectors 7 (port I/O is set to 12x8 in this example):
▪ Microphones to ports 1 to 9.
▪ The audio output of the Kramer VP-444 scaler to port 10.
▪ An MP3 player to ports 11 and 12.
2. Connect the PORT balanced mono 3-pin terminal block connectors 7 (port I/O is set to
12x8 in this example) to the following audio acceptors:
▪ Ports 13 and 14 to powered speakers (for example, Kramer Tavor 6-O).
▪ Port 15 to a power amplifier with speakers.
▪ Ports 16 to 20 to audio receivers.
3. Connect the RS-232 3-pin terminal block connector 15 to the RS-232 port on a
controller (for example, a laptop) to control the AFM-20DSP-LE.
4. Connect the ETHERNET RJ-45 port 16 to the Ethernet to control the AFM-20DSP-LE
and use for firmware upgrade.
5. Connect the mini USB connector 17 to a control device (for example, a laptop) to
control the AFM-20DSP-LE.
6. Connect the power cord to the AFM-20DSP-LE mains socket 19 and to the mains
electricity (not shown in Figure 7).

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Connecting AFM-20DSP-AEC
After connecting your AFM-20DSP-AEC, connect its power and then switch on the power to
each device.

Figure 8: Connecting to the AFM-20DSP-AEC Rear Panel

To connect AFM-20DSP-AEC as illustrated in the example in Figure 8:

1. Connect these audio sources to the PORT balanced mono 3-pin terminal block
connectors 7 (port I/O is set to 12x8 in this example):
▪ Microphones to ports 1 to 9.
▪ The audio output of the Kramer VP-444 scaler to port 10.
▪ An MP3 player to ports 11 and 12.
2. Connect the PORT balanced mono 3-pin terminal block connectors 7 (port I/O is set to
12x8 in this example) to the following audio acceptors:
▪ Ports 13 and 14 to powered speakers (for example, Kramer Tavor 6-O).
▪ Port 15 to a power amplifier with speakers.
▪ Ports 16 to 20 to audio receivers
3. Connect the HDMI connectors as follows:
▪ A source (for example, a Blu-ray player) to HDMI IN 9 .

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▪ HDMI OUT 10 to an acceptor (for example, a display).

4. Connect the S/PDIF digital audio ports as follows:
▪ A source (for example, a Blu-ray player to S/PDIF IN 12 .
▪ S/PDIF OUT 10 to an acceptor (for example, an audio receiver).
5. Connect the USB 8 to a computer such as a laptop
▪ To process the USB audio as a stereo speaker.
▪ To operate as an audio line-in or microphone for an audio recorder application or call
conferencing.
6. Connect the SPEAKER OUT Hi-Z OUT or Lo-Z OUT 4-pin terminal block connector 13
as follows:
▪ For Hi-Z connection: connect Hi-Z and COM terminal blocks to the + and – terminals
of a mono speaker (for example, the Galil 8-C ceiling speakers, daisy chained).
The speakers either output the left side (L+, L-) of the audio input or the stereo input
reduced to a mono signal (see Defining Audio Settings on page 44) .
▪ For Lo-Z connection: connect the L+ and L- connectors to the left-side speaker (for
example, Yarden 6-O) and the R+ and R- connectors to the right-side.
7. Connect the Dante RJ-45 port 14 to up to 4Tx and for Rx audio channels via the
network.
8. Connect the RS-232 3-pin terminal block connector 15 to the RS-232 port on a
controller (for example, a laptop) to control the AFM-20DSP.
9. Connect the ETHERNET RJ-45 port 16 to the Ethernet to control the AFM-20DSP and
use for firmware upgrade.
10. Connect the mini USB connector 17 to a control device (for example, a laptop) to
control the AFM-20DSP.
11. Connect the power cord to the AFM-20DSP mains socket 19 and to the mains
electricity (not shown in Figure 6).

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Connecting to AFM-20DSP via RS-232

You can connect to the AFM-20DSP via an RS-232 connection 15 using, for example, a PC.
The AFM-20DSP features an RS-232 3-pin terminal block connector allowing the RS-232 to
control the AFM-20DSP.

Connect the RS-232 terminal block on the rear panel of the AFM-20DSP to a PC/controller,
as follows:

From the RS-232 9-pin D-sub serial port connect:

RS-232 Device AFM-20DSP
• Pin 2 to the TX pin on the AFM-20DSP RS-232
terminal block

• Pin 3 to the RX pin on the AFM-20DSP RS-232

terminal block

• Pin 5 to the G pin on the AFM-20DSP RS-232 terminal

block

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Operating and Controlling AFM-

20DSP
AFM-20DSP, AFM-20DSP-LE, AFM-20DSP-AEC can be monitored through the front panel
LEDs (see AFM-20DSP, AFM-20DSP-AEC Front Panels on page 5) and controlled via the:
• Embedded webpages (see Using Embedded Webpages on page 18).
• Protocol commands (see Protocol 3000 Commands on page 68).

Operating via Ethernet

You can connect to the AFM-20DSP via Ethernet using either of the following methods:
• Directly to the PC using a crossover cable (see Connecting the Ethernet Port Directly to
a PC on page 15).
• Via a network hub, switch, or router, using a straight-through cable (see Connecting the
Ethernet Port via a Network Hub or Switch on page 17).

To connect via a router and your IT system is based on IPv6, speak to your IT department for
specific installation instructions.

Connecting the Ethernet Port Directly to a PC

You can connect the AFM-20DSP Ethernet port directly to the Ethernet port on your PC using
a crossover cable with RJ-45 connectors.

This type of connection is recommended for identifying the AFM-20DSP

with the factory configured default IP address.

After the AFM-20DSP is connected to the Ethernet port, configure your PC as follows:
1. Click Start > Control Panel > Network and Sharing Center.
2. Click Change Adapter Settings.
3. Highlight the network adapter you want to use to connect to the device and click Change
settings of this connection.
The Local Area Connection Properties window for the selected network adapter opens.

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Figure 9: Local Area Connection Properties Window

4. Highlight either Internet Protocol Version 6 (TCP/IPv6) or Internet Protocol Version 4

(TCP/IPv4) depending on the requirements of your IT system.
5. Click Properties.
The Internet Protocol Properties window relevant to your IT system opens.
6. Select Use the following IP Address for static IP addressing and enter the details as
shown in Figure 10.
For TCP/IPv4 you can use any IP address in the range 192.168.1.1 to 192.168.1.255
(excluding 192.168.1.39) that is provided by your IT department.

Figure 10: Internet Protocol Properties Window

7. Click OK.
8. Click Close.

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Connecting the Ethernet Port via a Network Hub or Switch

You can connect the AFM-20DSP Ethernet port to the Ethernet port on a network hub, or
using a straight-through cable with RJ-45 connectors.

Configuring the Ethernet Port

You can set the Ethernet parameters via the embedded webpages.

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Using Embedded Webpages

The embedded webpages allow users to operate AFM-20DSP locally or remotely. To access
the webpages open a browser or use an Ethernet connection (see Accessing the AFM-
20DSP Webpages on page 19).

Before attempting to connect:

• Do the procedures in Operating via Ethernet on page 15.
• Make sure your browser is supported.

The following operating systems and browsers are supported:

Operating Browser
System
Windows 7 Chrome
Windows 10 Chrome
Mac Chrome

Some features might not be supported by some cellphone operating systems.

The AFM-20DSP webpage enables you to:

• Using the Top Status Bar on page 19.
• Processing Audio Signals on page 22.
• Routing Inputs to Outputs on page 37.
• Mixing Audio Signals on page 41.
• Defining Audio Settings on page 44.
• Defining Video Settings on page 45.
• Restarting and Resetting the Device on page 53.
• Defining Settings on page 54.
• Defining Communication Settings on page 55.
• Performing Firmware Upgrade on page 56.
• Setting Date and Time on page 57.
• Configuring Device Automation on page 57.
• Viewing Device Information on page 58.

For your convenience, some of the same tasks can be done via DSP, Matrix, and Mixer
pages. For example, you can link analog input and output pairs through any of these three
pages.

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Accessing the AFM-20DSP Webpages

To browse the AFM-20DSP webpages:
1. Open a supported browser.
2. Enter the IP address of the device. The authentication page opens.
3. Enter the Username and Password (by default Admin/Admin).
4. Click Sign in. The Main webpage opens.
Note – To hide the Navigation List, click the arrow below the About icon.

Figure 11: Main Page – Navigation List Hidden

5. To set and control the device, click the applicable icon in the Navigation List.

Using the Top Status Bar

Use the top status bar to do the following functions:
• Viewing/Changing Current Analog I/O Configuration and Preset Name on page 19.
• Changing Security Settings on page 20.
Note – To enter/exit full-screen display view, click the display-view icon ( / ).

Viewing/Changing Current Analog I/O Configuration and Preset

Name

In the top pane of each menu bar, shows the analog I/O setup, the preset name, and the
status of the setup.

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The indication light displays:

Color Description Example
Green If the current preset
unmodified.
Figure 12: Analog and/or Preset Status Unmodified
Yellow If the current preset has
been modified.
Figure 13: Analog and/or Preset Status modified

To save a modified preset (yellow indication light):

1. Click the preset status area. The A/V settings page opens.
2. Do the instructions in Defining Audio Settings on page 44.

Changing Security Settings

You can easily disable or enable the webpages security using the lock icon. When security is
disabled, it is not necessary to enter a password to access the webpages.
• For information about the default login credentials, see Default Communication
Parameters on page 64.
• For information about changing the default login credentials, see Setting Access Security
on page 54.

To disable security settings:

1. Click the closed lock icon ( ) that indicates security is enabled.
The following message opens:

Figure 14: Disabling Security Message

2. Enter the current password (Admin, by default).

3. Click Save. Security is disabled.

To enable security settings:

Click the security disabled icon ( ). Security is enabled.

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Viewing the Matrix Area

The matrix area in the DSP page shows the inputs that are currently routed to the outputs.

Clicking an IN or OUT button or a module, highlights the routing path.

Figure 15: Matrix Area – Routing Path

When opening the processing view, the Input sliders routed to the outputs opens.

Figure 16: Processing View – Inputs Routed to Outputs

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Processing Audio Signals

Use the DSP page to process the input and output signals and present an overall view of your
session, including analog and digital in-out connections (in the Matrix area), using pre-matrix
and post-matrix modules.

In general:
• Click the Matrix area to enter the Matrix page (see Routing Inputs to Outputs
on page 37).
• Click an input, output, or any module to open its process view and configure that item.

The DSP page enables users to do these actions:

• Selecting Output Signals to Route to Amplifier Outputs on page 22.
• Linking Analog Inputs and Outputs on page 23.
• Processing a Signal on page 24.

Selecting Output Signals to Route to Amplifier Outputs

Select the audio outputs to duplicate and output to the amplified speakers 13 .

To duplicate the audio outputs to the amplifier:

1. From the Navigation List, click DSP.
2. In Duplicate to Amplifier Output 1 click the down arrow, and select an output. For
example, OUT 19.

Figure 17: DSP Page – Selecting Left Amplifier Output Signal

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3. In Output 2, click the down arrow and select an output (for example, OUT 20).

Figure 18: DSP Page – Selecting Right Output Amplifier Output Signal

OUT 19 outputs to the left side of the amplified speaker and OUT 20 outputs to the right side
of the amplified speaker as indicated in green on the left and the right sides of output 19 and
output 20.

Figure 19: DSP Page – Selected Left and Right Amplifier Outputs

Linking Analog Inputs and Outputs

Users can link analog inputs and outputs in predefined pairs to balance stereo analog sources
and acceptors. When linked, signal chain modules are set for both channels simultaneously.

To link an analog audio pair:

1. In the Navigation List, click DSP.

In addition, you can link audio analog audio pairs via the Matrix or Mixer page.

2. Click the link on the side of the ports (IN 7 and IN 8 in this example).

Figure 20: DSP Page – Linking Analog Audio Ports

The selected inputs are linked.

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Processing a Signal
Use processing view to configure the selected audio signal. Access processing view by
clicking an input / output button or a filtering tool in the DSP session view.
Note - Different port types have different processing modules.

In general:

• To enable a module click (on). To disable a module, click (off).

• In the processing view, the module appears at the center and input/output volume sliders
appear to the left/right (for further information, see Input / Output Channels Operation
on page 25).
• Adjust configuration knob by clicking and holding the mouse then moving it up or down,
or enter the parameter value below the knob and press Enter on your keyboard to apply.
• Reset a configuration knob to its default parameter value, by clicking the mouse within
the knob area while pressing Ctrl on your keyboard.
• The parameter value always appears below the knob or slider.
• A selected input or output button appears with a white rim.
• A selected processing tool button appears with a distinctive color.
• An enabled processing tool button appears with a distinctively coloured rim.

Processing modules enable users to do these actions:

• Adjusting Analog Input Parameters on page 26.
• Adjusting Digital Input Parameters on page 27.
• Post-Matrix Signal Processing on page 33.
• Using Expander Module on page 27.
• Using HPF (High Pass Filter) Module on page 28.
• Using AFS (Auto Feedback Suppression) Module on page 30.
• Using Compression Module on page 31.
• Using Equalizer Module on page 32.
• Using Gain Module on page 33.
• Using Post Matrix Equalizer Module on page 35.
• Using LPF (Low Pass Filter) on page 35.
• Using Limit Module on page 36.

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Input / Output Channels Operation

This section describes the function of the input and output sliders (the examples in this
section, showing the inputs, apply also to outputs).

Note - In figures 21 and 22 below, meters (left side) display on a scale of -100 dBFS to 0
dBFS maximum (above this is clipping or audio saturation). On the right side, the gain level
points to amplification for positive values and attenuation for negative values.

Level Measurement Indicators:

The audio signal enters the digital system at
a certain level and is measured in dBFS
units (dB relative to full scale, the maximum
value).
• Maximum level indicator – shows the
highest registered level (in RMS) and
can change only if a higher level is
detected.
Click the indicator to reset to the
current maximum value.
• 0dBFS – refers to the maximum signal
level that can enter the system. signal
levels higher than the system limit are
clipped.
• Current maximum level indicator –
displays the current maximum level
and holds it until a higher value is
detected.
`Figure 21: Level Measurement Indicators

Gain/Attenuation Fader
• Maximum level – 15dB is the maximum
gain.
• Unity gain – when volume fader is set to
0dB, the input level is not changed.
• Volume fader – slide to increase or
decrease the audio level.
• Minimum level – -100dB is the
maximum attenuation.
• Current fader position – shows the
current position of the fader. You can
also type a volume level into this box
and press Enter on your PC.

Figure 22: Channel Fader

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Pre-Matrix Signal Processing

This section describes the input pre-matrix signal processing of the input audio signal. The
input fader always appears to the left.

Adjusting Analog Input Parameters

See Input / Output Channels Operation on page 25 to understand the function of the slider.
IN 1 is used as an example in this section.

To adjust analog input parameters:

1. In the Navigation List, click DSP.
2. Click IN 1.
The IN 1 processing window open.

Figure 23: Processing View – Processing Analog Audio Input

3. Do these actions:
To Do this:

To adjust the audio input level: Move the fader.

To set the signal volume before and after using the pre-matrix Select Pre or Post.
modules:

To mute / unmute the input audio: Click / .

To inverse polarity (used for troubleshooting): Click .

To select audio line in: Click

To select dynamic microphone: Click .

To select condenser microphone (the title IN changes to MIC): Click .

Analog input parameters are adjusted.

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Adjusting Digital Input Parameters

Digital (Dante, HDMI and S/PDIF) input signal settings are the same. Dante is used as an
example in this section.

See Input / Output Channels Operationon page 25 to understand the function of the slider.

To adjust the Dante input parameters:

1. In the Navigation List, click DSP. The DSP (Main) page appears.
2. Click DANTE. The Dante input processing window opens.

Figure 24: Processing View – Processing Digital Input

3. Do these actions:

To Do this

To set the Dante audio input level (both sliders are identical): Move the volume fader.

To set the signal volume before and after using the pre-matrix Select Pre or Post.
modules:

To mute / unmute the input audio: Click / .

To inverse polarity (used for troubleshooting): Click .

Digital audio parameters are adjusted.

Using Expander Module

To increase the difference in loudness between the quieter and louder sounds, use the
Expander module. When the Expand module is used, the quiet sounds (usually background
noises) become quieter while the loud sounds become louder. The levels of audio signals that
fall below the set threshold level are reduced.

To adjust the expander module:

1. In the Navigation List, click DSP.
2. Click Exp. The button turns light blue and the Expander module page opens.

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3. Click the Off button . The Exp module turns on .

Figure 25: Processing View – Expander Module

4. Define the following:

▪ Threshold – Decreases the volume of audio signals that are below the threshold
level.
▪ Attack Time – Sets the response speed of the expander to signal levels above the
threshold.
▪ Release – Sets the response speed of the expander to signal levels below the
threshold.
5. To set the amount to which the volume is decreased, click the Ratio down arrow.
Note - The higher the ratio the more the audio level below the threshold is lowered.

The Expansion (dB) indicates the amount of expansion in a dB scale.

Expander settings are adjusted.

Using HPF (High Pass Filter) Module

A High Pass Filter passes signals that are higher than a certain cut-off frequency.
Frequencies under the cut-off frequency are attenuated. Use the HPF module to cut off low
frequencies and let higher frequencies pass.

To adjust the HPF:

1. In the Navigation List, click DSP.
2. Click HPF. The button turns light orange and the High Pass Filter module window opens.
The left side shows the input volume slider.

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3. Click the Off button . The HPF module turns on .

Figure 26: Processing View – HPF Module

4. Set the cut-off frequency.

5. Select the HPF low-cut algorithm type (or select None):
▪ Bessel – A linear filter with maximum linear phase response. It is frequently used in
audio-crossover systems.
▪ Link R (Linkwitz-Riley) – An Infinite Impulse Response (IIR) filter used in audio
crossovers. It has a parallel combination of low-pass and high-pass. The filters are
usually designed by cascading two Butterworth filters, each of which has a -3dB gain
at the cut-off frequency. The resulting Link-R filter has a -6dB gain at the cut-off
frequency.
▪ Butter (Butterworth) – Designed to have a frequency response as flat as possible in
the passband.
6. Select the HPF slope (24, 18, 12 or 6dB/Oct) – Set the filter drop-off per octave from the
filter frequency.
HPF parameters are adjusted.

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Using AFS (Auto Feedback Suppression) Module

Use the Auto Feedback Suppression module to eliminate microphone feedback (applies to
analog inputs 1 to 4).

We recommend analog inputs 1 to 4 for microphones to eliminate audio feedback.

To adjust the AFS module:

1. In the Navigation List, click DSP.
2. Click AFS. The button turns turquoise and the AFS module page opens.

Figure 27: Processing View – AFS Module

3. Click the Off button . The AFS module turns on .

4. Set each of the 8 bands to dynamic (Dyn) or fixed (Fix), depending on the application.

Figure 28: AFS Module – Selecting Input Fixed or Dynamic AFS Band Values

5. Define the following:

▪ Threshold (dB) – Sets the AFS activation threshold for feedback suppression.
▪ Max Depth (dB) – Sets how deep the cut per band.
▪ Notch Step Size – Sets the decrease in dB steps until reaching Max depth.
▪ Default Bandwidth (Oct) – Sets the width of the notch.
▪ Recycle Delay – Sets time period [Hours] until the filters are reused.
6. Select the sensitivity from Very High to Very Low.

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7. Click Recycle Enabled / Disabled to enable / disable the filters.

Figure 29: AFS Module – Defining AFS Parameters

AFS parameters are adjusted.

Using Compression Module

To reduce the signal dynamic range which is the difference between the loudest and quieter
sounds, use the Compressor module. For example, the difference between a scream and a
whisper, which makes the sound seem more natural.

To adjust the compressor settings:

1. In the Navigation List, click DSP.
2. Click Comp. The button turns blue and the Compressor module pane opens.

3. Click the Off button . The Comp module turns on .

Figure 30: Processing View – Compressor Module

4. Set the following:

▪ Threshold – The level that the signal needs to rise above for the compressor to begin
working. If a signal is too low or does not cross the threshold, the compressor allows the
signal to pass through unchanged.
▪ Attack Time – The response speed of the compression to signal levels above the

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threshold.
▪ Release – The response speed of the compressor to signal levels above the
threshold.
5. To set the amount to which the volume is decreased, click the Ratio down arrow.
6. Set the gain to compensate for the attenuation caused by compression.
The Comp settings are adjusted.

Using Equalizer Module

To change the balance of different frequency components in the audio signal, use the
Equalizer module.

To adjust the equalizer:

1. In the Navigation List, click DSP.
2. Click EQ. The button turns orange and the Equalizer processing page opens.

3. Click the Off button . The Equalizer module turns on .

Figure 31: Processing View – Equalizer Module

4. Perform the following actions for each of the four bands:

▪ To ignore a band, click BYPASS.
▪ Adjust the band Frequency (Hz).
▪ To set the range of frequencies around the selected frequency, set Bandwidth
(Oct).
▪ Set the bandwidth audio Level (dB).
Equalizer settings are adjusted.

Using Delay Module

Set the delay to accommodate the audio to the listeners distance from the speakers. Delay
time tool converts the delay in ms to meters, feet, and samples.

To adjust the delay:

1. In the Navigation List, click DSP.
2. Click Delay. The button turns green and the Equalizer processing page opens.

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3. Click the Off button . The Delay module turns on .

Figure 32: Processing View – Delay Module

4. Set the delay.

Delay setting is adjusted.

Using Gain Module

1. In the Navigation List, click DSP.
2. Click Gain. The button turns violet and the Gain processing page opens.

Figure 33: Processing View – Gain Module

3. Do these actions:
▪ Set gain.
▪ In necessary, click Mute.
Gain is adjusted.

Post-Matrix Signal Processing

AFM-20DSP enables performing post-matrix signal processing to outputs, including:

• Using Delay Module on page 32.
• Using HPF (High Pass Filter) Module on page 28.
• Using Post Matrix Equalizer Moduleon page 35.
• Using LPF (Low Pass Filter) on page 35.
• Using Limit Module on page 36.
• Setting USB/SPDIF Selectable Ports Inputs and Outputs on page 40.

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Setting Audio Output Parameters

Analog, Dante, HDMI and S/PDIF output signal settings are identical. Dante is used as an
example in this section.

See Input / Output Channels Operation on page 25 to understand the function of the slider.

To adjust the audio outputs:

1. In the Navigation List, click DSP.
2. Click Dante. The Dante processing window opens.

Figure 34: Processing View – Processing Digital Input

3. Do these actions:
▪ Move the volume fader to set the output audio level (both sliders are identical).
▪ To mute / unmute the output audio, click / .
▪ To inverse polarity (used for troubleshooting), click .
Audio outputs are adjusted.

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Using Post Matrix Equalizer Module

To change the balance of different frequency components in the audio signal, use the
Equalizer module.

To adjust the equalizer:

1. In the Navigation List, click DSP.
2. Click EQ. The button turns orange and the Equalizer processing window opens.

3. Click the Off button . The Equalizer module turns on .

Figure 35: Processing View – Processing Output Equalizer

4. Do these actions for each of the eight bands:

▪ To ignore that band, click BYPASS.
▪ Set the band frequency (Hz).
▪ Set the audio level (dB).
▪ Set the bandwidth (Oct).
Equalizer settings are adjusted.

Using LPF (Low Pass Filter)

To cut off high frequencies and let lower frequencies pass, use the LPF tool.

To adjust the LPF:

1. From the Navigation List, click DSP.
2. Click LPF. The button turns a peach color and the Low Pass Filter processing page
appears. The left side shows the input volume slider.

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3. Click the Off button . The LPF module turns on .

Figure 36: Processing View – Processing Output LPF

4. Set the frequency.

5. Select LPF type (Bessel, Link R, Butter or None).
6. Select LPF slope (24, 18, 12 or 6dB/Oct).
Frequency settings are adjusted.

Using Limit Module

To the specified threshold, reducing the gain above the threshold, use the Limiter tool to limit
the signal level. A limiter can boost the volume of a certain sound.

To adjust the limiter:

1. From the Navigation List, click DSP.
2. Click Limit. The button turns purple and the Limiter processing window opens.
The right side shows the output volume slider.

3. Click the Off button . The Limiter module turns on .

Figure 37: Processing View – Limiter Module

4. Set the Threshold.

Note - The Gain Reduction meter as you change the threshold.
5. To set the response speed of the limiter to signal levels above the threshold, set the
Release time.
Limiter settings are adjusted.

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Routing Inputs to Outputs

Click a cross-point to connect any inputs to any of the outputs via the Matrix page; set the
connection volume, link analog input and output pairs and select the outputs to the amplifier.

AFM-20DSP-LE Matrix page includes only analog inputs and outputs.

AFM-20DSP enables performing the following functions:

• Connecting Inputs to Outputs on page 37.
• Setting Cross-Point Volume on page 38.
• Linking Analog Pairs on page 39.
• Setting Amplifier Outputs on page 39.

Connecting Inputs to Outputs

To route an input or several inputs to an output:

1. In the Navigation List, click Matrix.
2. Click an in-out cross-point (for example, IN 2 input and OUT 14 output).
The black cross-point turns green.

Figure 38: Matrix Page – In-Out Cross-Point

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3. Click any other cross-points (one input to output/s or several inputs to output/s).

Figure 39: Matrix Page – Multiple Input-Output Cross-Point

Selected inputs are routed to selected outputs.

You can also select an audio signal generator for testing.

Setting Cross-Point Volume

Set the cross-point volume separately for each in-out connection.

To set the cross-point volume:

1. In the Navigation List, click Matrix.
2. Click the volume area (0dB, by default). The volume window opens.

Figure 40: Matrix Page – Setting Cross-Point Volume

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3. To set the cross-point volume, use the knob, or enter the value and click Enter. The
cross-point volume is set and shows at the cross-point.

Figure 41: Cross-Point Volume Value

Linking Analog Pairs

To link analog input or output pairs, see Linking Analog Inputs and Outputs on page 23.

Setting Amplifier Outputs

To set the amplifier left and right outputs, use Matrix or DSP, see Selecting Output Signals to
Route to Amplifier on page 22).

To set amplifier outputs:

1. In the Navigation List, click Matrix.
2. Click AMP (on the lower right side of the page). The AMP page opens and displays all
available outputs.

Figure 42: AMP View

3. Select an output to route to Amp 1 (amplifier left side) and to Amp 2 (amplifier right side).
the button turns green and shows the status as ON.

Figure 43: Selecting Outputs to Amplifier

Amplifier outputs are defined.

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Setting USB/SPDIF Selectable Ports Inputs and Outputs

This section is for AFM-20DSP-AEC only.

In Digital Inputs and Digital Outputs, users can set the port to route digital USB or SPDIF
inputs and outputs. The USB/SPDIF port is a selectable port with two signals (right and left).

Note – USB is the default for inputs and outputs.

To set the USB/SPDIF input:

1. In the Navigation List, click DSP.
2. Below Digital Inputs, select USB 1.1. The USB 1.1 window opens.
3. In the drop-down box, select either USB.B or SPDIF. In this screenshot, SPDIF is
selected.

Figure 44: Digital Input routing set to SPDIF

Note - This selection automatically changes both the right and left signal to SPDIF:

Figure 45: Digital input selectable port set to SPDIF (right and left)

4. Do these actions:
▪ Move the volume fader to set the input audio level (both sliders are identical).
▪ To mute / unmute the output audio, click / .

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▪ To inverse polarity (used for troubleshooting), click .

The selectable port input is set.

To set the SPDIF/USB output:

Volume control does not support compressed SPDIF audio output.

1. In the Navigation List, click DSP.

2. Below Digital Outputs, select USB 1.1. The USB 1.1 window opens.
3. Do these actions:
▪ Move the volume fader to set the output audio level (both sliders are identical).
▪ To mute / unmute the output audio, click / .
▪ To inverse polarity (used for troubleshooting), click .
The selectable port output is set.

Mixing Audio Signals

Mix the audio signals and store/recall mixing snapshots via the Mixer.

AFM-20DSP enables you to do these tasks:

• Defining Input and Output Parameters on page 41.
• Defining Snapshots on page 42.

Defining Input and Output Parameters

Set audio parameters for each input and output.

To set input/output parameters:

1. In the Navigation List, click Mixer.

An input/output frame with a white rim indicates that this input/output is currently connected to
an output/input, respectively.

2. To set the volume, use the slider or enter a value and click Enter.
View the current gain and the input/output name (see Input / Output Channels Operation
on page 25).
3. Set the following:
▪ To set the signal volume before and after using the modules, select Pre or Post.
▪ To mute / unmute the input audio, click / .
▪ To inverse polarity (used for troubleshooting), click .

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For analog audio inputs only:

▪ To select audio line in, click .
▪ To select dynamic microphone, click .
▪ To select condenser microphone (the title changes from IN to MIC), click .

Figure 46: Mixer Page – Analog Audio Settings

Audio parameters are defined.

Defining Snapshots

To store the current configuration state, recall a snapshot, set to default or clear a snapshot,
use Store a snapshot (inputs, outputs, and amplifier)

Storing Snapshots

To store a snapshot:
1. In the Navigation List, click Mixer.
2. Set input and output mixers.

When the parameters change, the Default button turns yellow. To restore default settings,
click Default.

Figure 47: Mixer Page – Snapshots

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3. Click Store.

Figure 48: Mixer Page – Storing Snapshots

4. Click a Snapshot button (for example, Snapshot 1).

Figure 49: Mixer Page – Selecting a Snapshot

The current configuration is stored to Snapshot 1.

Clearing Snapshots

To clear a snapshot configuration:

1. From the Navigation List, click Mixer.
2. Click Clear, the Snapshot buttons turn blue.

Figure 50: Mixer Page – Clearing a Snapshot

3. Select the snapshot to be cleared. The snapshot cleared returns to its default values.

Loading Snapshots

To load a snapshot:
1. In the Navigation List, click Mixer.
2. To load the desired snapshot, do any of the following:
▪ Click Snapshot (1 to 9).
▪ To load the next snapshot configuration, click Next.
▪ To load the previous snapshot configuration, click Prev.
▪ To load the latest configured snapshot, click Last. Note – If you click Last again,
then it goes to the previously configured snapshot and so on.
The selected snapshot is loaded.

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Defining Audio Settings

To set the AFM-20DSP analog audio I/O configuration, system presets and amplifier settings,
use the A/V Settings.

Amplifier settings are only relevant to AFM-20DSP and AFM-20DSP-AEC.

To define audio settings:

1. In the Navigation List, click A/V Settings.
2. In the I/O Config drop-down box, select analog input x output configuration > click Set.
3. In the System Preset drop-down box, select a preset and click Load or Save as.
The current preset is loaded or saved.

System Preset does not include I/O configuration.

4. Define amplifier parameters:

▪ Click Hi-Z/Lo-Z,
▪ Click 100V/70V
▪ Click Left Only or Stereo Down Mix when Hi-Z is selected.

Audio settings are defined.

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Defining Video Settings

To set the AFM-20DSP HDMI input and output labels, Force RGB and/or Force 2LPCM, and
video pattern (if required), using the Video tab in the A/V Settings page.

To define video settings:

1. In the Navigation List, click A/V Settings.
2. Select Video tab.
3. Enter HDMI input and output labels > click Set.
4. For HDMI input, select or unselect the checkbox Force RGB and/or Force 2LPCM.
5. If necessary, select a Video Pattern from the drop-down box.
Video settings are defined.

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Defining AEC Settings

This section is for AFM-20DSP-AEC only.

AEC, Acoustic Echo Cancellation is used to cancel echo (or feedback) during conference
calls. The AEC feature consists of one remote input and two individual microphone inputs.
When AEC is enabled, it looks for the remote echo audio that was picked up by the individual
microphone and then cancels the echoed audio in the microphone input. Besides removing
the echo, AEC does Noise Reduction and Comfort Noise Generation.

Note - Far side input is configured into the AEC reference module. AEC module uses this Far
side configuration as reference to remove echo from the microphones.

The steps below illustrate a typical conference call setup in which AEC is turned on to remove
the Far Side echo. The microphone is connected to analog input port 1 (“MIC 1”) and the
digital input, USB, is connected to a computer with a speaker system.

To use the AEC:

1. From the Navigate List, select DSP.
2. Below Analog Inputs select the port to which the microphone is connected. In this
screenshot, the microphone is connected to port “MIC 1”:

Figure 51: MIC connected to analog IN 1

3. Select AEC Mic and then click AEC.

Figure 52: ACE Mic and AEC start up

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The AEC Configuration window opens.

Figure 53: AEC Settings

4. Set the AEC settings based on the AEC parameters table below.

We recommend using the default settings. If you changed the default settings and later
decide to return to the default settings, double-click the words Acoustic Echo Cancellation.

AEC Parameters Table:

Parameter Description Value
Enables the AEC function. If this is disabled, the
On/Off
Echo module does not perform any AEC functions and all
Default: On
Cancelling mic inputs to the module are directly passed to the
direct output of the module.
Enables Noise reduction on individual Mic Inputs. If this
parameter is enabled, the noise On/Off
Noise
reduction algorithm is applied to individual mic inputs Default: On
Reduction
and suppress the detected noise
by the noise reduction level.
On/Off
DC Filter Removes DC Default: On

Noise
Set how many dB suppress the noise when Noise 40 to 0
Reduction
Reduction is enabled. Default: -10
Level
When both local end (mics) and far end (remote) audio
sources are
Double Talk present at the same time, this is a Double Talk - 50 to 0
Echo situation. Under this scenario an additional echo Default: -6
Reduction reduction algorithm is applied, and it uses the Double
Talk Echo Reduction setting to configure the amount of
echo to reduce.
If enabled, a background comfort noise is generated
and applied to
On/Off
Comfort Noise the individual output if it is detected that the input mic is Default: On
Generator completely silent. This comfort noise is useful so that
remote end user does not hear a complete silent
channel and mistakenly think that the line has dropped.
The noise level generated when Comfort Noise
Generator is enabled. If you are mixing a lot of Mics
Comfort Noise -60 to -30
before sending to the remote end, you must reduce this
Level: Default: -50.0
Comfort Noise level as all noise is summed before
sending to remote end.
0 to 50
Delay Delay to be applied to all Mic Inputs.
Default: 0
Reset Resets the AEC

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5. Below Digital Inputs > click USB and select USB 1.1.

Figure 54: USB Digital Input Selection

6. In the USB 1.1 window, from the drop-down box select the USB_B audio channel. The
DSP now process the USB as a digital input.

Figure 55: USB B and SPDIF Settings Window

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7. Select AEC Ref.

Figure 56: AEC Ref for Far Side Input Selector

The Far Side Selector Configuration window opens.

Figure 57: Fare Side Input Selector Configuration

8. In the drop-down menu, the Far Side Input Selector must be set to the input port that
receives the Far Side audio signal. In this illustration, it is the selectable port
IN_USB_B.1.

Figure 58: Far Side Input Selector with USB port selected

AFM-20DSP – Defining AEC Settings 49

 Kramer Electronics Ltd.

9. From the Navigation List, select Matrix and route the inputs to the outputs.

Figure 59: Example Matrix routed MIC using USB B

The AEC feature is now active.

Auto Mixer
Auto Mixer is typically used in a conference setting where multiple MICs are in use, but only
one (or a few) should be on at any time. This module turns on MICs based on their input
signal as compared to the level of the other MICs.

Gain Sharing Auto Mixer

The Gain Sharing Auto Mixer is an automatic microphone mixing process that allows the
automatic mixing of input channels to one output channel based on input signal levels. The
louder the input channel, the louder it is at the output channel.

Figure 60: Gain Sharing Auto Mixer

AFM-20DSP – Defining AEC Settings 50

 Kramer Electronics Ltd.

Users can select to pass the signal through the input directly to the Matrix, or to first pass the
data to the Auto Mixer and then to the Matrix.

To send input data directly to the Matrix:

1. From the Navigate List, select DSP.
2. For each port number, select Direct.

The input is now set to go directly to the Matrix.

To send input to the Auto Mixer and then to the Matrix:

1. From the Navigate List, select DSP.
2. For each port, select the first Auto Mixer icon.
3. Select the second Auto Mixer icon.

Figure 61: Auto Mixer option selected

As shown in this screenshot the input first goes to the Auto Mixer and then to the Matrix:

Figure 62: Input sent to Auto Mixer before going to the Matrix

The input is now set to enter the Auto Mixer before going to the Matrix.

Gain Sharing Auto Mixer Inputs

Each input includes:

Mute -100 to 16 dB, 0.01dB steps.

RMS Meter -80 to 40 dB, 0.1 dB steps.

Auto Gain Meter -100 to 0 dB, 0.1 dB steps (Shows calculated gain for each channel).
Changes the gain from automatic (off) to fixed (on).
Manual On Note - While Manual On, the gain for the channel is fixed and does not
impact other channels.

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 Kramer Electronics Ltd.

Gain Sharing Auto Mixer Outputs

Each output includes:

Gain -100 to 16 dB, 0.01 dB steps and Mute control.

Ranges from 1 to 11 (with 1 being the highest and 11 the lowest).
Priority An input channel with a higher priority will have a larger gain applied
dependent on the Slope value and difference in priority between channels.
1 to 3, 0.001 steps determine the gain difference between priorities.
With a Slope of 1 there is no gain.
Slope With a Slope of 2, 2dB for each point of priority difference between
channels.
A Slope of 3 creates a 4dB gain per point of priority.
The amount of time (in milliseconds) it takes to apply a new gain value to a
Gain Response Time microphone channel.
(0.2 to 2000 ms, 0.1 ms steps)

The Auto Mixer is now configured.

FAR AGC (Automatic Gain Control)

FAR AGC keeps the volume at a set level. When the input is below a threshold, it amplifies
to bring the level up to the Target Output Level. When the input above threshold, it reduces
the gain to bring it back below the Target output Level.

Figure 63: FAR AGC Settings window

FAR AGC Parameters

-40 to 0dB Detection Threshold (-80 to -20 dB) is the point at which the
Target Output Level
AGC begins to raise the gain of the signal.
1ms to 40,000ms is the period of time before the AGC begins to act when
Response Time
the level is over or under the Target output Level.
1ms to 100,000ms is the amount of time after the Target Output level is
Recover Time
below the set level before the AGC begins to increase the gain.
1:1 to 5:1 is how much the change can increase/decrease the gain between
Ratio
samples.
Contour HPF (On/Off) allows higher frequencies to pass regardless of the level.

Noise Threshold -100 to -40dB is where the noise floor can be set.
(On/Off) enables leakage on the ALC so that short-term instances of
Leakage Enable
over/under.
Target Output Levels are ignored for this amount of time. Leakage Time
Target Output Level (100ms to 100,000ms) is how long the leakage is allowed before the gain
begins to compensate.

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 Kramer Electronics Ltd.

Restarting and Resetting the

Device
To restart the AFM-20DSP or reset it to its factory default parameters, use Settings.

Restarting the Device

To restart the device:
1. In the Navigation List, click Settings.
2. Click Restart. The device restarts immediately.
Wait for the device to reload after device restart. Note - There is no pop-up message
before the device restarts.

Resetting the Device

To reset the device to its default parameters:
1. In the Navigation List, click Settings.
2. Click Factory reset. The following message appears:

Figure 64: Settings Page – Factory Reset Message

3. Click Yes.
The device resets to its factory default parameters.

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 Kramer Electronics Ltd.

Defining Settings
To change the device name, view the model and serial number and firmware version,
navigate to the General tab in Settings, which also enables:
• Importing/Exporting Global Settings on page 54.
• Setting Access Security on page 54.
• Defining Communication Settings on page 55.
• Performing Firmware Upgrade on page 56.
• Setting Date and Time on page 57.
• Configuring Device Automation on page 57.

Importing/Exporting Global Settings

You can export a Global Settings file to a different AFM-20DSP device or import a file to your
device.

To import/export global settings:

1. From the Navigation List, click Settings.
2. In the General tab, in the Global System Settings area:
▪ To import a file, click Import > select the system setting “.bin” file from the Open
window > click Open.
The imported system settings file is uploaded to the device.
▪ To export a file, click Export. The current system setting “.bin” file is downloaded to
your PC and can be exported to other devices.

Figure 65: General Settings Tab – Importing / Exporting Global Settings

Global system settings are imported/exported.

Setting Access Security

By default, the webpages are secured and require access permission (the default username
and password are both: Admin).

AFM-20DSP enables you to do the following security actions:

• Enabling/Disabling Security on page 55.

AFM-20DSP – Defining Settings 54

 Kramer Electronics Ltd.

• Changing the Security Password on page 55.

Enabling/Disabling Security

To enable/disable security:
1. From the Navigation List, click Settings > General.
2. In the Security field, slide the toggle button to On or Off.
3. Enter the current password > click Save.
Security is now enabled/disabled. The security-disabled icon appears ( ).
Or,

Security is enabled. The security-enabled icon appears ( ).

Changing the Security Password

To change the Security password:

1. From the Navigation List, click Settings > General > below Change security
properties enter the necessary password details.
2. Click the lower white bar.
3. Click OK.
The Security password has changed.

Defining Communication Settings

To set the AFM-20DSP communication parameters, including the IP Address, Mask, gateway,
and more, use the Communication tab.

AFM-20DSP enables you to do these tasks:

• Changing Ethernet Settings on page 55.
• Setting Parameters when DHCP is On on page 56.

Changing Ethernet Settings

To change the Ethernet settings:

1. From the Navigation List, click Settings > Communication.
2. If DHCP is set to Off, change any of the parameters (IP Address, Mask and/or
Gateway).
3. If necessary, change the TCP port number.
4. Click Save.
After changing the IP address, reload the webpage with the new IP address.
If DHCP is On, reload the webpage with the new IP address (see below).

Ethernet settings have changed.

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 Kramer Electronics Ltd.

Setting Parameters when DHCP is On

To set parameters when DHCP is set to On:

1. From the Navigation List, click Settings > Communication.
Note the Device Name in the General tab as you will need it after the page reloads.
2. Set DHCP to ON.
3. Click Save.
4. Type the device name in the address bar of your browser to reload the page.
You can read the new IP address from the Communication Settings page.
Parameters are set.

Performing Firmware Upgrade

To perform AFM-20DSP firmware upgrade, use the Upgrade tab in the Settings.

To perform firmware upgrade:

1. From the Navigation List, click Settings > Upgrade.
2. Click Upgrade and select the new firmware file.
The following message opens:

Figure 66: Upgrade Settings Tab – Firmware Upgrade Message

3. Click Yes and wait for the upgrade to finish.

4. Wait for the device to restart.
Firmware upgrade is complete.

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 Kramer Electronics Ltd.

Setting Date and Time

To set the time and date:
1. From the Navigation List, click Settings > Time and date.
2. In Device Date, click inside the tab and select a date.
3. Click OK.
4. Set the Time Zone.
5. Click Save.
6. If necessary, use time server (disables setting the device date):
a. Slide the Use Time Server (NTP) button to Yes.
b. Enter the Time Server Address.
c. View Server Status.
d. Click Save.
Date and time are set.

Configuring Device Automation

Access Kramer Maestro V1.5 room automation via AFM-20DSP. Maestro is a powerful tool
that enables you to configure single-trigger room element automation scenarios without the
need for complicated programming.

To use room automation, you need to define triggers that, upon an event, execute scripts
which include a sequence of actions (commands, which can appear in different scenarios)
that are carried out via any defined ports.

Download the Kramer Maestro User Manual from the Kramer website at:
www.kramerav.com/downloads/AFM-20DSP to learn how to use Kramer Maestro.

Note that all the ports, actions, and triggers that are relevant to AFM-20DSP are included in
the Kramer Maestro, and ports, actions and triggers that are relevant to other Kramer
devices.

DSP model only - The Panel tab in the Automation page is currently unavailable.

To access Kramer Maestro:

1. From the Navigation List, click Automation.
2. Configure the ports, actions, scripts, and triggers as described in the Kramer Maestro
User Manual.

When the triggers are defined, they activate the scripts configured in the automation page.
For example, the Scheduling trigger can activate a series of actions that follow a preset
schedule.

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 Kramer Electronics Ltd.

Viewing Device Information

In the Navigation pane, click About to view the AFM-20DSP webpage version and Kramer
Electronics Ltd details.

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 Kramer Electronics Ltd.

Upgrading Firmware
Use the Kramer K-UPLOAD software to upgrade the firmware via the Ethernet port only (set
connection method to Ethernet).

When upgrading the firmware, select either TCP port or UDP port.

The latest version of K-UPLOAD and installation instructions can be downloaded from our
website at: www.kramerav.com/support/product_downloads.asp.

Note - To use the micro USB port, you must install the Kramer USB driver, available at:
www.kramerav.com/support/product_downloads.asp.

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 Kramer Electronics Ltd.

Technical Specifications
AFM-20DSP Technical Specifications
Inputs/Outputs 20 Balanced Mono Audio On 3-pin terminal blocks
Inputs 1 HDMI On a female HDMI connector
1 S/PDIF On an RCA connector
Outputs 1 HDMI On a female HDMI connector
1 S/PDIF On an RCA connector
120W Amplifier On a 4-pin large terminal block
Ports Dante On an RJ-45 female connector
Mini USB On a female mini USB connector
RS-232 On a 3-pin terminal block connector
Ethernet On an RJ-45 female connector
Line/Mic Level Input Impedance Unbalanced 7.6kΩ
Impedance Balanced 3.8kΩ
Impedance Microphone 3.8kΩ
Nominal level Unbalanced 0dBV (0.77Vrms)
Nominal level Balanced +6.8dBu (1.54Vrms)
Maximum level (Balanced) +8dBu (2Vrms)
Sensitivity Unbalanced Full power @ 0dBV (0.77Vrms)
Sensitivity Balanced Full power @ +6dBu (1.54Vrms)
Phantom Power 48 VDC on/off per input
Line Level Output Impedance Unbalanced 50Ω
Impedance Balanced 50Ω
Frequency Response 20Hz - 20kHz @ +/-1dB
S/N Ratio: >100 dB, 20Hz - 20kHz, at unity gain
(unweighted)
Audio THD + Noise: <0.01%, 20 Hz - 20 kHz, at unity gain
Crosstalk <-85 dB, 20Hz to 20kHz
Amplifier Class D
Input Sensitivity Attains full power @ 0.3V (–10dBV)
Output Power 2 x 60W @ 4Ω or 8Ω
1 x 120W @70V or 100V
Maximum Voltage Gain 26dB SE / 32dB BTL
Dynamic Range 119dB
Frequency Response 20Hz to 20kHz @ +/-1dB
S/N Ratio 80dB: 10dBV; 20 Hz: 20 kHz
Audio THD + Noise THD+N (1kHz @ 1W) 0.003 %
Audio 2nd Harmonic 0.08% @ 75W RMS @ 4Ω 6.67kHz
Crosstalk <-85 dB, 20Hz to 20kHz
Total System 89%
Efficiency
Video Max Bandwidth 10.2Gbps (3.4Gbps per graphic channel)
Max Resolution 4K UHD @60Hz (4:2:0) 24bpp resolution
Compliance HDMI and HDCP 1.4
User Interface Front Panel LEDs 1 status, 20 analog audio ports, 4 Dante I/O,
HDMI embed, HDMI de–embed, 2 S/PDIF
I/O, and 2 amplifier channels

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Control RS-232 Baud Rate 115200

Supported Windows 7 Chrome
Web Browsers Windows 10
MAC 10.11
Power Consumption 190VA
Source 100-240V AC 50/60Hz
Environmental Operating Temperature 0° to +40°C (32° to 104°F)
Conditions Storage Temperature -40° to +70°C (-40° to 158°F)
Humidity 10% to 90%, RHL non-condensing
Regulatory Safety CE
Compliance Environmental RoHs, WEEE
Enclosure Size 19” 1U
Type Aluminum
Cooling Fans
General Net Dimensions (W, D, H) 43.6cm x 23.7cm x 4.4cm
(17.2" x 9.3" x 1.7")
Shipping Dimensions (W, D, H) 52.5cm x 33cm x 10.7cm
(20.7" x 13" x 4.2")
Net Weight 1.6kg (3.5lbs)
Shipping Weight 2.7kg (5.9lbs) approx.
Accessories Included Power cord
Specifications are subject to change without notice at www.kramerav.com

AFM-20DSP-LE Technical Specs

Inputs/Outputs 20 Balanced Mono Audio On 3-pin terminal blocks
Ports Mini USB On a female mini USB connector
RS-232 On a 3-pin terminal block connector
Ethernet On an RJ-45 female connector
Line/Mic Level Input Impedance Unbalanced 7.6kΩ
Impedance Balanced 3.8kΩ
Impedance Microphone 3.8kΩ
Nominal level Unbalanced 0dBV (0.77Vrms)
Nominal level Balanced +6.8dBu (1.54Vrms)
Maximum level (Balanced) +8dBu (2Vrms)
Sensitivity Unbalanced Full power @ 0dBV (0.77Vrms)
Sensitivity Balanced Full power @ +6dBu (1.54Vrms)
Phantom Power 48 VDC on/off per input
Line Level Output Impedance Unbalanced 50Ω
Impedance Balanced 50Ω
Frequency Response 20Hz - 20kHz @ +/-1dB
S/N Ratio >100 dB, 20Hz - 20kHz, at unity gain
(unweighted)
Audio THD + Noise <0.01%, 20 Hz - 20 kHz, at unity gain
Crosstalk <-85 dB, 20Hz to 20kHz
User Interface Front Panel LEDs 1 status, 20 analog audio ports, 4 Dante I/O,
HDMI embed, HDMI de–embed, 2 S/PDIF
I/O, and 2 amplifier channels
Control RS-232 Baud Rate 115200

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 Kramer Electronics Ltd.

Supported Windows 7 Chrome

Web Browsers Windows 10
MAC 10.11
Power Consumption 31.5VA
Source 100-240V AC 50/60Hz
Environmental Operating Temperature 0° to +40°C (32° to 104°F)
Conditions Storage Temperature -40° to +70°C (-40° to 158°F)
Humidity 10% to 90%, RHL non-condensing
Regulatory Safety CE
Compliance Environmental RoHs, WEEE
Enclosure Size 19” 1U
Type Aluminum
Cooling Fans
General Net Dimensions (W, D, H) 43.6cm x 23.7cm x 4.4cm
(17.2" x 9.3" x 1.7")
Shipping Dimensions (W, D, H) 52.5cm x 33cm x 10.7cm
(20.7" x 13" x 4.2")
Net Weight 1.6kg (3.5lbs)
Shipping Weight 2.7kg (5.9lbs) approx.
Accessories Included Power cord
Specifications are subject to change without notice at www.kramerav.com

AFM-20DSP-AEC Technical Specifications

Inputs/Outputs 20 Balanced Mono Audio On 3-pin terminal blocks
Ports Mini USB On a female mini USB connector
RS-232 On a 3-pin terminal block connector
Ethernet On an RJ-45 female connector
Line/Mic Level Input Impedance Unbalanced 7.6kΩ
Impedance Balanced 3.8kΩ
Impedance Microphone 3.8kΩ
Nominal level Unbalanced 0dBV (0.77Vrms)
Nominal level Balanced +6.8dBu (1.54Vrms)
Maximum level (Balanced) +8dBu (2Vrms)
Sensitivity Unbalanced Full power @ 0dBV (0.77Vrms)
Sensitivity Balanced Full power @ +6dBu (1.54Vrms)
Phantom Power 48 VDC on/off per input
Line Level Output Impedance Unbalanced 50Ω
Impedance Balanced 50Ω
Frequency Response 20Hz - 20kHz @ +/-1dB
S/N Ratio >100 dB, 20Hz - 20kHz, at unity gain
(unweighted)
Audio THD + Noise <0.01%, 20 Hz - 20 kHz, at unity gain
Crosstalk <-85 dB, 20Hz to 20kHz
User Interface Front Panel LEDs 1 status, 20 analog audio ports, 4 Dante I/O,
HDMI embed, HDMI de–embed, 2 S/PDIF
I/O, and 2 amplifier channels
Control RS-232 Baud Rate 115200

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 Kramer Electronics Ltd.

Supported Windows 7 Chrome

Web Browsers Windows 10
MAC 10.11
Power Consumption 190VA
Source 100-240V AC 50/60Hz
Environmental Operating Temperature 0° to +40°C (32° to 104°F)
Conditions Storage Temperature -40° to +70°C (-40° to 158°F)
Humidity 10% to 90%, RHL non-condensing
Regulatory Safety CE
Compliance Environmental RoHs, WEEE
Enclosure Size 19” 1U
Type Aluminum
Cooling Fans
General Net Dimensions (W, D, H) 43.6cm x 23.7cm x 4.4cm
(17.2" x 9.3" x 1.7")
Shipping Dimensions (W, D, H) 52.5cm x 33cm x 10.7cm
(20.7" x 13" x 4.2")
Net Weight 1.6kg (3.5lbs)
Shipping Weight 2.7kg (5.9lbs) approx.
Accessories Included Power cord
Specifications are subject to change without notice at www.kramerav.com

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 Kramer Electronics Ltd.

Default Communication Parameters

RS-232 Control / Protocol 3000
Baud Rate: 115,200 Parity: None
Data Bits: 8 Command Format: ASCII
Stop Bits: 1
Example: (adjust the amplified audio from analog audio 1 to -10dB):
#x-aud-lvl out.amplified_audio.1.audio.1,-10
Default Ethernet Parameters
IP Address: 192.168.1.39 UDP Port #: 50000
Subnet mask: 255.255.0.0 TCP Port #: 5000
Gateway: 192.168.0.1 Security User/Password Admin/Admin
Factory Reset
Recessed Button Press and hold for 5 seconds to reset the configuration to its default
parameters.
Protocol 3000: “#factory” command.
Webpages: In the Settings page, click Reset.

Default AFM-20DSP EDID

Monitor
Model name............... AFM-20DSP
Manufacturer............. KMR
Plug and Play ID......... KMR1200
Serial number............ 295-883450100
Manufacture date......... 2014, ISO week 255
Filter driver............ None
-------------------------
EDID revision............ 1.3
Input signal type........ Digital
Color bit depth.......... Undefined
Display type............. Monochrome/grayscale
Screen size.............. 520 x 320 mm (24.0 in)
Power management......... Standby, Suspend, Active off/sleep
Extension blocs.......... 1 (CEA-EXT)
-------------------------
DDC/CI................... n/a

Color characteristics
Default color space...... Non-sRGB
Display gamma............ 2.20
Red chromaticity......... Rx 0.674 - Ry 0.319
Green chromaticity....... Gx 0.188 - Gy 0.706
Blue chromaticity........ Bx 0.148 - By 0.064
White point (default).... Wx 0.313 - Wy 0.329
Additional descriptors... None

Timing characteristics
Horizontal scan range.... 30-83kHz
Vertical scan range...... 56-76Hz
Video bandwidth.......... 170MHz
CVT standard............. Not supported
GTF standard............. Not supported
Additional descriptors... None
Preferred timing......... Yes
Native/preferred timing.. 1280x720p at 60Hz (16:10)
Modeline............... "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync

Standard timings supported

720 x 400p at 70Hz - IBM VGA
720 x 400p at 88Hz - IBM XGA2
640 x 480p at 60Hz - IBM VGA
640 x 480p at 67Hz - Apple Mac II
640 x 480p at 72Hz - VESA
640 x 480p at 75Hz - VESA
800 x 600p at 56Hz - VESA
800 x 600p at 60Hz - VESA
800 x 600p at 72Hz - VESA
800 x 600p at 75Hz - VESA

AFM-20DSP – Technical Specifications 64

 Kramer Electronics Ltd.

832 x 624p at 75Hz - Apple Mac II

1024 x 768i at 87Hz - IBM
1024 x 768p at 60Hz - VESA
1024 x 768p at 70Hz - VESA
1024 x 768p at 75Hz - VESA
1280 x 1024p at 75Hz - VESA
1152 x 870p at 75Hz - Apple Mac II
1280 x 1024p at 75Hz - VESA STD
1280 x 1024p at 85Hz - VESA STD
1600 x 1200p at 60Hz - VESA STD
1024 x 768p at 85Hz - VESA STD
800 x 600p at 85Hz - VESA STD
640 x 480p at 85Hz - VESA STD
1152 x 864p at 70Hz - VESA STD
1280 x 960p at 60Hz - VESA STD

EIA/CEA-861 Information
Revision number.......... 3
IT underscan............. Supported
Basic audio.............. Supported
YCbCr 4:4:4.............. Not supported
YCbCr 4:2:2.............. Not supported
Native formats........... 1
Detailed timing #1....... 1920x1080p at 60Hz (16:10)
Modeline............... "1920x1080" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Detailed timing #2....... 1920x1080i at 60Hz (16:10)
Modeline............... "1920x1080" 74.250 1920 2008 2052 2200 1080 1084 1094 1124 interlace +hsync +vsync
Detailed timing #3....... 1280x720p at 60Hz (16:10)
Modeline............... "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Detailed timing #4....... 720x480p at 60Hz (16:10)
Modeline............... "720x480" 27.000 720 736 798 858 480 489 495 525 -hsync -vsync

CE audio data (formats supported)

LPCM 2-channel, 16/20/24 bit depths at 32/44/48 kHz

CE video identifiers (VICs) - timing/formats supported

1920 x 1080p at 60Hz - HDTV (16:9, 1:1)
1920 x 1080i at 60Hz - HDTV (16:9, 1:1)
1280 x 720p at 60Hz - HDTV (16:9, 1:1) [Native]
720 x 480p at 60Hz - EDTV (16:9, 32:27)
720 x 480p at 60Hz - EDTV (4:3, 8:9)
720 x 480i at 60Hz - Doublescan (16:9, 32:27)
720 x 576i at 50Hz - Doublescan (16:9, 64:45)
640 x 480p at 60Hz - Default (4:3, 1:1)
NB: NTSC refresh rate = (Hz*1000)/1001

CE vendor specific data (VSDB)

IEEE registration number. 0x000C03
CEC physical address..... 1.0.0.0
Maximum TMDS clock....... 165MHz

CE speaker allocation data

Channel configuration.... 2.0
Front left/right......... Yes
Front LFE................ No
Front center............. No
Rear left/right.......... No
Rear center.............. No
Front left/right center.. No
Rear left/right center... No
Rear LFE................. No

Report information
Date generated........... 03/04/2017
Software revision........ 2.90.0.1020
Data source.............. File
Operating system......... 6.1.7601.2.Service Pack 1

Raw data
00,FF,FF,FF,FF,FF,FF,00,2D,B2,00,12,01,01,01,01,FF,18,01,03,80,34,20,78,E2,B3,25,AC,51,30,B4,26,
10,50,54,FF,FF,80,81,8F,81,99,A9,40,61,59,45,59,31,59,71,4A,81,40,01,1D,00,72,51,D0,1E,20,6E,28,
55,00,07,44,21,00,00,1E,00,00,00,FF,00,32,39,35,2D,38,38,33,34,35,30,31,30,30,00,00,00,FC,00,56,
53,2D,38,38,55,54,0A,20,20,20,20,20,00,00,00,FD,00,38,4C,1E,53,11,00,0A,20,20,20,20,20,20,01,E6,
02,03,1B,C1,23,09,07,07,48,10,05,84,03,02,07,16,01,65,03,0C,00,10,00,83,01,00,00,02,3A,80,18,71,
38,2D,40,58,2C,45,00,07,44,21,00,00,1E,01,1D,80,18,71,1C,16,20,58,2C,25,00,07,44,21,00,00,9E,01,
1D,00,72,51,D0,1E,20,6E,28,55,00,07,44,21,00,00,1E,8C,0A,D0,8A,20,E0,2D,10,10,3E,96,00,07,44,21,
00,00,18,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,77

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 Kramer Electronics Ltd.

Default AFM-20DSP-AEC EDID

Monitor
Model name............... AFM-20DSP-AEC
Manufacturer............. KMR
Plug and Play ID......... KMR1200
Serial number............ 295-883450100
Manufacture date......... 2014, ISO week 255
Filter driver............ None
-------------------------
EDID revision............ 1.3
Input signal type........ Digital
Color bit depth.......... Undefined
Display type............. Monochrome/grayscale
Screen size.............. 520 x 320 mm (24.0 in)
Power management......... Standby, Suspend, Active off/sleep
Extension blocs.......... 1 (CEA/CTA-EXT)
-------------------------
DDC/CI................... n/a

Color characteristics
Default color space...... Non-sRGB
Display gamma............ 2.20
Red chromaticity......... Rx 0.674 - Ry 0.319
Green chromaticity....... Gx 0.188 - Gy 0.706
Blue chromaticity........ Bx 0.148 - By 0.064
White point (default).... Wx 0.313 - Wy 0.329
Additional descriptors... None

Timing characteristics
Horizontal scan range.... 30-83kHz
Vertical scan range...... 56-76Hz
Video bandwidth.......... 170MHz
CVT standard............. Not supported
GTF standard............. Not supported
Additional descriptors... None
Preferred timing......... Yes
Native/preferred timing.. 1920x1080p at 60Hz (16:9)
Modeline............... "1920x1080" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync

Standard timings supported

720 x 400p at 70Hz - IBM VGA
720 x 400p at 88Hz - IBM XGA2
640 x 480p at 60Hz - IBM VGA
640 x 480p at 67Hz - Apple Mac II
640 x 480p at 72Hz - VESA
640 x 480p at 75Hz - VESA
800 x 600p at 56Hz - VESA
800 x 600p at 60Hz - VESA
800 x 600p at 72Hz - VESA
800 x 600p at 75Hz - VESA
832 x 624p at 75Hz - Apple Mac II

1024 x 768i at 87Hz - IBM

1024 x 768p at 60Hz - VESA
1024 x 768p at 70Hz - VESA
1024 x 768p at 75Hz - VESA
1280 x 1024p at 75Hz - VESA
1152 x 870p at 75Hz - Apple Mac II
1280 x 1024p at 75Hz - VESA STD
1280 x 1024p at 85Hz - VESA STD
1600 x 1200p at 60Hz - VESA STD
1024 x 768p at 85Hz - VESA STD
800 x 600p at 85Hz - VESA STD
640 x 480p at 85Hz - VESA STD
1152 x 864p at 70Hz - VESA STD
1280 x 960p at 60Hz - VESA STD

EIA/CEA/CTA-861 Information
Revision number.......... 3
IT underscan............. Supported
Basic audio.............. Supported
YCbCr 4:4:4.............. Not supported
YCbCr 4:2:2.............. Not supported
Native formats........... 1
Detailed timing #1....... 1920x1080p at 60Hz (16:10)
Modeline............... "1920x1080" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Detailed timing #2....... 1920x1080i at 60Hz (16:10)
Modeline............... "1920x1080" 74.250 1920 2008 2052 2200 1080 1084 1094 1124 interlace +hsync +vsync
Detailed timing #3....... 1280x720p at 60Hz (16:10)
Modeline............... "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Detailed timing #4....... 720x480p at 60Hz (16:10)
Modeline............... "720x480" 27.000 720 736 798 858 480 489 495 525 -hsync -vsync

CE audio data (formats supported)

LPCM 2-channel, 16/20/24 bit depths at 32/44/48 kHz

CE video identifiers (VICs) - timing/formats supported

1920 x 1080p at 60Hz - HDTV (16:9, 1:1) [Native]

AFM-20DSP – Technical Specifications 66

 Kramer Electronics Ltd.

1920 x 1080i at 60Hz - HDTV (16:9, 1:1)

1280 x 720p at 60Hz - HDTV (16:9, 1:1)
720 x 480p at 60Hz - EDTV (16:9, 32:27)
720 x 480p at 60Hz - EDTV (4:3, 8:9)
720 x 480i at 60Hz - Doublescan (16:9, 32:27)
720 x 576i at 50Hz - Doublescan (16:9, 64:45)
640 x 480p at 60Hz - Default (4:3, 1:1)
NB: NTSC refresh rate = (Hz*1000)/1001

CE vendor specific data (VSDB)

IEEE registration number. 0x000C03
CEC physical address..... 1.0.0.0
Maximum TMDS clock....... 165MHz

CE speaker allocation data

Channel configuration.... 2.0
Front left/right......... Yes
Front LFE................ No
Front center............. No
Rear left/right.......... No
Rear center.............. No
Front left/right center.. No
Rear left/right center... No
Rear LFE................. No

Report information
Date generated........... 10/19/2021
Software revision........ 2.91.0.1043
Data source.............. File - NB: improperly installed
Operating system......... 10.0.19042.2

Raw data
00,FF,FF,FF,FF,FF,FF,00,2D,B2,00,12,01,01,01,01,FF,18,01,03,80,34,20,78,E2,B3,25,AC,51,30,B4,26,
10,50,54,FF,FF,80,81,8F,81,99,A9,40,61,59,45,59,31,59,71,4A,81,40,02,3A,80,18,71,38,2D,40,58,2C,
45,00,A0,5A,00,00,00,1E,00,00,00,FF,00,32,39,35,2D,38,38,33,34,35,30,31,30,30,00,00,00,FC,00,41,
46,4D,2D,32,30,44,53,50,2D,41,45,43,00,00,00,FD,00,38,4C,1E,53,11,00,0A,20,20,20,20,20,20,01,D8,
02,03,1B,C1,23,09,07,07,48,90,05,04,03,02,07,16,01,65,03,0C,00,10,00,83,01,00,00,02,3A,80,18,71,
38,2D,40,58,2C,45,00,07,44,21,00,00,1E,01,1D,80,18,71,1C,16,20,58,2C,25,00,07,44,21,00,00,9E,01,
1D,00,72,51,D0,1E,20,6E,28,55,00,07,44,21,00,00,1E,8C,0A,D0,8A,20,E0,2D,10,10,3E,96,00,07,44,21,
00,00,18,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,77

AFM-20DSP – Technical Specifications 67

 Kramer Electronics Ltd.

Protocol 3000
Kramer devices can be operated using Kramer Protocol 3000 commands sent via serial or
Ethernet ports.

Understanding Protocol 3000

Protocol 3000 commands are a sequence of ASCII letters, structured according to the
following.
• Command format:
Prefix Command Name Constant Parameter(s) Suffix
(Space)
# Command  Parameter <CR>

• Feedback format:
Prefix Device ID Constant Command Name Parameter(s) Suffix
~ nn @ Command Parameter <CR><LF>

• Command parameters – Multiple parameters must be separated by a comma (,). In

addition, multiple parameters can be grouped as a single parameter using brackets ([
and ]).
• Command chain separator character – Multiple commands can be chained in the
same string. Each command is delimited by a pipe character (|).
• Parameters attributes – Parameters may contain multiple attributes. Attributes are
indicated with pointy brackets (<…>) and must be separated by a period (.).

The command framing varies according to how you interface with the VS-88UT. The following
figure displays how the # command is framed using terminal communication software (such
as Hercules):

Protocol 3000 Commands

Function Description Syntax Parameters/Attributes Example
# Protocol handshaking. COMMAND #<CR>
#<CR>
Validates the
Protocol 3000 FEEDBACK
connection and gets ~nn@OK<CR><LF>
the machine number.

Step-in master
products use this
command to identify
the availability of a
device.
AUD-MONO-MODE Set HI-Z mono COMMAND MonoMode – The mono output mode Set the output to mix to mono:
selection. #AUD-MONO-MODEMonoMode<CR> 0 – output is ”stereo mix to mono” – #AUD-MONO-MODE0<CR>
both left and right mix to one
These commands FEEDBACK channel
are active only when ~nn@AUD-MONO-MODEMonoMode<CR><LF> 1 – output is “left to mono” – duplicate
the state is HI-Z, left channel information to the right
otherwise an error is and play both
returned.

To set, the MonoMode

parameter must be
used.

AFM-20DSP – Protocol 3000 68

 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

AUD-MONO- Get HI-Z mono COMMAND MonoMode – The mono output mode Get the output to mix to mono:
MODE? selection. #AUD-MONO-MODE?<CR> 0 – output is ”stereo mix to mono” – #AUD-MONO-MODE?<CR>
both left and right mix to one
These commands FEEDBACK
channel
are active only when ~nn@AUD-MONO-MODEMonoMode<CR><LF> 1 – output is “left to mono” – duplicate
the state is HI-Z, left channel information to the right
otherwise an error is and play both
returned.

To set, the MonoMode

parameter must be
used.
AV-SW-TIMEOUT Set auto switching COMMAND action – Set the auto switching timeout
timeout. #AV-SW-TIMEOUTaction,time_out<CR> 4 – Disable 5V on video output if no to 5 seconds in the event of 5V
input signal detected. disable when no input signal is
FEEDBACK detected:
time_out – Timeout in seconds
~nn@AV-SW-TIMEOUTaction,time_out<CR><LF> #AV-SW-TIMEOUT4,5<CR>
30 - 60000
AV-SW- Get auto switching COMMAND action – Get the Disable 5V on video
TIMEOUT? timeout. #AV-SW-TIMEOUT?action<CR> 4 – Disable 5V on video output if no output if no input signal
input signal detected detected timeout:
FEEDBACK
time_out – Timeout in seconds #AV-SW-TIMEOUT?4<CR>
~nn@AV-SW-TIMEOUTaction,time_out<CR><LF>
30 - 60000
BUILD-DATE? Get device build date. COMMAND date – Format: YYYY/MM/DD where Get the device build date:
#BUILD-DATE?<CR> YYYY = Year #BUILD-DATE?<CR>
MM = Month
FEEDBACK DD = Day
~nn@BUILD-DATEdate,time<CR><LF> time – Format: hh:mm:ss where
hh = hours
mm = minutes
ss = seconds
CPEDID Copy EDID data from COMMAND src_type – EDID source type (usually Copy the EDID data from the
the output to the input #CPEDIDsrc_type,src_id,dst_type,dest_bitmap<CR> output) Output (EDID source) to the
EEPROM. 0 – Input Input:
or
1 – Output #CPEDID1,1,0,0x1<CR>
Destination bitmap #CPEDIDsrc_type,src_id,dst_type,dest_bitmap,safe_mode<C
R> 2 – Default EDID Copy the EDID data from the
size depends on
3 – Custom EDID default EDID source to the
device properties (for FEEDBACK
64 inputs it is a 64-bit src_id – Number of chosen source Input:
~nn@CPEDIDsrc_stg,src_id,dst_type,dest_bitmap<CR><LF> stage #CPEDID2,0,0,0x1<CR>
word).
~nn@CPEDIDsrc_stg,src_id,dst_type,dest_bitmap,safe_mode 0 – Default EDID source
Example: bitmap <CR><LF> 1 – Output 1
0x0013 means inputs dst_type – EDID destination type
1,2 and 5 are loaded (usually input)
with the new EDID. 0 – Input
1 – Output
In certain products
Safe_mode is an 2 – Default EDID
optional parameter. 3 – Custom EDID
See the HELP dest_bitmap – Bitmap representing
command for its destination IDs. Format: XXXX…X,
availability. where X is hex digit. The binary form of
every hex digit represents
corresponding destinations.
0 – indicates that EDID data is not
copied to this destination.
1 – indicates that EDID data is copied
to this destination.
safe_mode –
0 – device accepts the EDID as is
without trying to adjust
1 – device tries to adjust the EDID
(default value if no parameter is
sent)
DISPLAY? Get output HPD status. COMMAND out_id – Output number Get the output HPD status of
#DISPLAY?out_id<CR> 1 – HDMI output Output 1:
status – HPD status according to #DISPLAY?1<CR>
FEEDBACK
signal validation
~nn@DISPLAYout_id,status<CR><LF>
0 – Signal or sink is not valid
1 – Signal or sink is valid
2 – Sink and EDID is valid
DSP-ACTION Set DSP parameter. Internal – for web only.
DSP-ACTION? Get DSP parameter. Internal – for web only.
DSP-METER- Register DSP meters. Internal – for web only.
REGISTER
DSP-METER- Unregister DSP Internal – for web only.
UNREGISTER meters.
EDID-AUDIO Set audio capabilities COMMAND input_id – 1 Set HDMI IN audio capabilities
for EDID. #EDID-AUDIOinput_id,audio_format<CR> Audio_format – Audio block added to for EDID (LPCM 6CH):
EDID: #EDID-AUDIO1,2<CR>
FEEDBACK
0 – Auto
~nn@EDID-AUDIOinput_id,audio_format <CR><LF>
1 – LPCM 2CH
2 – LPCM 6CH
3 – LPCM 8CH
4 – Bitstream
5 – HD
EDID-AUDIO? Get audio capabilities COMMAND input_id – 1 Get HDMI IN 1 audio
for EDID. #EDID-AUDIO?input_id<CR> Audio_format – Audio block added to capabilities for EDID:
EDID: #EDID-AUDIO?1<CR>
FEEDBACK
0 – Auto
~nn@EDID-AUDIOinput_id,audio_format<CR><LF>
1 – LPCM 2CH
2 – LPCM 6CH
3 – LPCM 8CH
4 – Bitstream
5 – HD

AFM-20DSP – Protocol 3000 69

 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

EDID-CS Set EDID color space. COMMAND input_id – 1 Set HDMI IN 1 EDID color
#EDID-CSinput_id,ColSpace<CR> ColSpace – Color space space to RGB (enabled):
Set command 0– RGB #EDID-CS1,0<CR>
might change the FEEDBACK
4 – auto
current EDID. ~nn@EDID-CSinput_id,ColSpace<CR><LF>
EDID-CS? Get EDID color space. COMMAND input_id – 1 Get EDID color space:
#EDID-CS?input_id<CR> ColSpace – Color space #EDID-CS?1<CR>
Get command 0– RGB
might change the FEEDBACK
4 – auto
current EDID. ~nn@EDID-CSinput_id,ColSpace<CR><LF>
ETH-PORT Set Ethernet port COMMAND portType – TCP/UDP Set the Ethernet port protocol
protocol. #ETH-PORTportType,ETHPort<CR> ETHPort – TCP/UDP port number for TCP to port 12457:
(0 – 65535) #ETH-PORT0,12457<CR>
If the port number FEEDBACK
you enter is already in ~nn@ETH-PORTportType,ETHPort<CR><LF>
use, an error is
returned.
The port number must
be within the following
range: 0-(2^16-1).
ETH-PORT? Get Ethernet port COMMAND portType – TCP/UDP Get the Ethernet port protocol
protocol. #ETH-PORT?portType<CR> 0 – TCP for UDP:
1 – UDP #ETH-PORT?1<CR>
FEEDBACK
~nn@ETH-PORTportType,ETHPort<CR><LF> ETHPort – TCP / UDP port number (0
– 65535)
FACTORY Reset device to factory COMMAND Reset the device to factory
default configuration. #FACTORY<CR> default configuration:
#FACTORY<CR>
This command FEEDBACK
deletes all user data ~nn@FACTORYOK<CR><LF>
from the device. The
deletion can take some
time.

Your device may

require powering off
and powering on for
the changes to take
effect.
FEATURE-LIST? Get feature state COMMAND Feature_Id – Feature ID Get the room controller feature
according to the #FEATURE-LIST?feature_id<CR> 1 – Maestro state (for the room controller 1):
feature ID. 2 – Room Controller #FEATURE-LIST?1<CR>
FEEDBACK
~nn@FEATURE-LISTfeature_id,ir_state<CR><LF> Ir_State – IR Interface
0 – Disabled
1 – Enabled
HDCP-MOD Set HDCP mode. COMMAND inp_id – Input number: Set the input HDCP-MODE of
#HDCP-MODinp_id, mode<CR> 1 – IN 1 HDMI IN 1 to Off:
2 – IN 2 HDBT #HDCP-MOD1,0<CR>
FEEDBACK
~nn@HDCP-MODinp_id, mode<CR><LF> mode – HDCP mode:
Set HDCP
0 – HDCP Off
working mode on the
device input: 3 – HDCP defined according to the
connected output
HDCP supported -
HDCP_ON [default].

HDCP not supported -

HDCP OFF.

HDCP support
changes following
detected sink -
MIRROR OUTPUT.

When you define 3 as

the mode, the HDCP
status is defined
according to the
connected output in
the following priority:
OUT 1, OUT 2. If the
connected display on
OUT 2 supports
HDCP, but OUT 1
does not, then HDCP
is defined as not
supported. If OUT 1 is
not connected, then
HDCP is defined by
OUT 2.
HDCP-MOD? Get HDCP mode. COMMAND inp_id – Input number: Get the input HDCP-MODE of
#HDCP-MOD?inp_id<CR> 1 – IN 1 HDMI IN 1 HDMI:
2 – IN 2 HDBT #HDCP-MOD?1<CR>
FEEDBACK
Set HDCP ~nn@HDCP-MODinp_id,mode<CR><LF> mode – HDCP mode:
working mode on the 0 – HDCP Off
device input: 3 – HDCP defined according to the
connected output
HDCP supported -
HDCP_ON [default].

HDCP not supported -

HDCP OFF.

HDCP support

AFM-20DSP – Protocol 3000 70

 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

HELP Get command list or COMMAND command – Name of a specific Get the command list:
help for specific #HELP<CR> command #HELP<CR>
command.
#HELPcommand_name<CR>
To get help for
FEEDBACK
#AV-SW-TIMEOUT:
1. Multi-line:
HELPAV-SW-TIMEOUT<CR>
~nn@Devicecommand,command…<CR><LF>
To get help for command use: HELP (COMMAND_NAME)<CR><LF>
~nn@HELPcommand:<CR><LF>
description<CR><LF>
USAGE:usage<CR><LF>
LOGIN Set protocol COMMAND login_level – Level of permissions Set the protocol permission
permission. #LOGINlogin_level,password<CR> required ( User or Admin) level to Admin (when the
password – Predefined password (by password defined in the PASS
FEEDBACK command is 33333):
For devices that PASS command). Default password is
support security, ~nn@LOGINlogin_level,passwordOK<CR><LF> an empty string #LOGINAdmin,33333<CR>
LOGIN allows the user or
to run commands with ~nn@LOGINERR004<CR><LF>
an End User or
Administrator (if incorrect password was entered)
permission level.
When the permission
system is enabled,
LOGIN enables
running commands
with the User or
Administrator
permission level
When set, login must
be performed upon
each connection

The permission system

works only if security is
enabled with the
“SECUR” command.

It is not mandatory to
enable the permission
system in order to use
the device

In each device, some

connections allow
logging in to different
levels. Some do not
work with security at
all.

Connection may logout

after timeout.
LOGIN? Get current protocol COMMAND login_level – Level of permissions Get current protocol permission
permission level. #LOGIN?<CR> required (User or Admin) level:
#LOGIN?<CR>
For devices that FEEDBACK
support security, ~nn@LOGINlogin_level<CR><LF>
LOGIN allows the user
to run commands with
an End User or
Administrator
permission level.

In each device, some

connections allow
logging in to different
levels. Some do not
work with security at
all.

Connection may logout

after timeout.

The permission system

works only if security is
enabled with the
“SECUR” command.
LOGOUT Cancel current COMMAND #LOGOUT<CR>
permission level. #LOGOUT<CR>

Logs out from End FEEDBACK

User or Administrator ~nn@LOGOUTOK<CR><LF>
permission levels to
Not Secure.
LOG-TAIL? Get the last “n” lines of COMMAND Line_num – Optional, default line_num Get the last "2" lines of
message logs. #LOG-TAIL?line_num<CR> is 10 message logs:
#LOG-TAIL?2<CR>
Used for advanced FEEDBACK
troubleshooting. Helps Get:
find error root causes ~nn@LOG-TAILnn<CR><LF>
and gets details not Line content #1<CR><LF>
displayed in the error
Line content #2<CR><LF>
code number.
Etc...

AFM-20DSP – Protocol 3000 71

 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

MATRIX- Get routing status of all COMMAND The following attributes comprise the Get the room controller current
STATUS? output ports. #MATRIX-STATUS?<CR> output signal ID (suffix 1) and input matrix state:
signal ID (suffix 2 or greater): #MATRIX-STATUS?<CR>
FEEDBACK ▪<direction_type>– IN
Multi-line:
▪<port_type>–
This syntax ~nn@MATRIX-STATUS[[<direction_type1>. <port_type1>. <por
t_index1>. <signal_type1>. <index1>, [[<direction_type2>. < o HDMI
uses the new
convention of using port_type2>. <port_index2>. <signal_type2>. <index2>], . . ] o HDBT
brackets to define a list <CR><LF> o ANALOG_AUDIO
of fields “[ ]”. o AMPLIFIED_AUDIO
o TOS
o SPDIF
o MIC
o RS-232
o IR
o USB_A
o USB_B
▪<port_index>– The port number
as printed on the front or rear
panel
▪<signal_type>–
o VIDEO
o AUDIO
o ARC
o RS232
o IR
o USB
▪<index>– Indicates a specific channel
number when there are multiple
channels of the same type
MODEL? Get device model. COMMAND model_name – String of up to 19 Get the device model:
#MODEL?<CR> printable ASCII chars #MODEL?<CR>
This command
identifies equipment FEEDBACK
connected to AFM- ~nn@MODELmodel_name<CR><LF>
20DSP and notifies of
identity changes to the
connected equipment.
The Matrix saves this
data in memory to
answer REMOTE-
INFO requests.
NAME Set machine (DNS) COMMAND machine_name – String of up to 15 Set the DNS name of the
name. #NAMEmachine_name<CR> alpha-numeric chars (can include device to room-442:
hyphen, not at the beginning or end) #NAMEroom-442<CR>
The machine name FEEDBACK
is not the same as the ~nn@NAMEmachine_name<CR><LF>
model name. The
machine name is used
to identify a specific
machine or a network
in use (with DNS
feature on).
NAME? Get machine (DNS) COMMAND machine_name – String of up to 15 Get the DNS name of the
name. #NAME?<CR> alpha-numeric chars (can include device:
hyphen, not at the beginning or end) #NAME?<CR>
The machine name FEEDBACK
is not the same as the ~nn@NAMEmachine_name<CR><LF>
model name. The
machine name is used
to identify a specific
machine or a network
in use (with DNS
feature on).
NAME-RST Reset machine (DNS) COMMAND Reset the machine name (S/N
name to factory #NAME-RST<CR> last digits are 0102):
default. #NAME-
FEEDBACK
RSTKRAMER_0102<CR>
Factory default of ~nn@NAME-RSTOK<CR><LF>
machine (DNS) name
is “KRAMER_” + 4 last
digits of device serial
number.
NET-CONFIG Set a network COMMAND id – Network ID–the device network Set the device network
configuration. #NET-CONFIGid,ip,net_mask,gateway,[DNS1],[DNS2]<CR> interface (if there are more than one). parameters to IP address
Counting is 0 based, meaning the 192.168.113.10, net mask
FEEDBACK control port is ‘0’, additional ports are 255.255.0.0, and gateway
Parameters,[DNS1] ~nn@NET-CONFIGid,ip,net_mask,gateway<CR><LF> 1,2,3…. 192.168.0.1:
and [DNS2]are ip – Network IP #NET-CONFIG0,192.168.1
optional. net_mask – Network mask 13.10,255.255.0.0,192.1
gateway – Network gateway 68.0.1<CR>
For Backward
compatibility, the id
parameter can be
omitted. In this case,
the Network ID, by
default, is 0, which is
the Ethernet control
port.

If the gateway
address is not
compliant to the
subnet mask used for
the host IP, the
command will return
an error. Subnet and
gateway compliancy
specified by RFC950.

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 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

NET-CONFIG? Get a network COMMAND id – Network ID–the device network Get network configuration:
configuration. #NET-CONFIG?id<CR> interface (if there are more than one). #NET-CONFIG?id<CR>
Counting is 0 based, meaning the
FEEDBACK
control port is ‘0’, additional ports are
~nn@NET-CONFIGid,ip,net_mask,gateway<CR><LF> 1,2,3….
ip – Network IP
net_mask – Network mask
gateway – Network gateway
NET-DHCP Set DHCP mode. COMMAND id – 0 Enable DHCP mode for port 1,
#NET-DHCPid,mode<CR> mode – if available:
Only 1 is relevant 1 – Try to use DHCP. (If unavailable, #NET-DHCP1,1<CR>
for the mode value. To FEEDBACK
use the IP address set by the
disable DHCP, the ~nn@NET-DHCPid,mode<CR><LF> factory or the NET-IP command).
user must configure a
static IP address for
the device.

Connecting Ethernet to
devices with DHCP
may take more time in
some networks.

To connect with a
randomly assigned IP
by DHCP, specify the
device DNS name (if
available) using the
NAME command. You
can also get an
assigned IP by direct
connection to USB or
RS-232 protocol port, if
available.

For proper settings

consult your network
administrator.

For Backward
compatibility, the id
parameter can be
omitted. In this case,
the Network ID, by
default, is 0, which is
the Ethernet control
port.
NET-DHCP? Get DHCP mode. COMMAND id – 0 Get DHCP mode for port 1:
For Backward #NET-DHCP?id<CR> mode – #NET-DHCP?1<CR>
compatibility, the id 0 – Do not use DHCP. Use the IP set
FEEDBACK
parameter can be by the factory or using the NET-
~nn@NET-DHCPid,mode<CR><LF>
omitted. In this case, IP or NET-CONFIG command.
the Network ID, by 1 – Try to use DHCP. If unavailable,
default, is 0, which is use the IP set by the factory or
the Ethernet control using the NET-IP or NET-
port. CONFIG command.
NET-DNS? Get DNS name server. N/A
NET-GATE Set gateway IP. COMMAND ip_address – Format: xxx.xxx.xxx.xxx Set the gateway IP address to
#NET-GATEip_address<CR> 192.168.0.1:
A network gateway #NET-
connects the device FEEDBACK
GATE192.168.000.001<CR
via another network ~nn@NET-GATEip_address<CR><LF> >
and maybe over the
Internet. Be careful of
security issues. For
proper settings consult
your network
administrator.
NET-GATE? Get gateway IP. COMMAND ip_address – Format: xxx.xxx.xxx.xxx Get the gateway IP address:
#NET-GATE?<CR> #NET-GATE?<CR>
A network gateway
connects the device FEEDBACK
via another network ~nn@NET-GATEip_address<CR><LF>
and maybe over the
Internet. Be aware of
security problems.
NET-IP Set IP address. COMMAND ip_address – Format: xxx.xxx.xxx.xxx Set the IP address to
#NET-IPip_address<CR> 192.168.1.39:
For proper settings #NET-
consult your network FEEDBACK
IP192.168.001.039<CR>
administrator. ~nn@NET-IPip_address<CR><LF>
NET-IP? Get IP address. COMMAND ip_address – Format: xxx.xxx.xxx.xxx Get the IP address:
#NET-IP?<CR> #NET-IP?<CR>
FEEDBACK
~nn@NET-IPip_address<CR><LF>
NET-MAC? Get MAC address. COMMAND id – Network ID–the device network #NET-MAC?id<CR>
For backward #NET-MAC?id<CR> interface (if there are more than one).
compatibility, the id Counting is 0 based, meaning the
FEEDBACK control port is ‘0’, additional ports are
parameter can be ~nn@NET-MACid,mac_address<CR><LF> 1,2,3….
omitted. In this case,
the Network ID, by mac_address – Unique MAC address.
default, is 0, which is Format: XX-XX-XX-XX-XX-XX where X
the Ethernet control is hex digit
port.
NET-MASK Set subnet mask. COMMAND net_mask – Format: xxx.xxx.xxx.xxx Set the subnet mask to
For proper settings #NET-MASKnet_mask<CR> 255.255.0.0:
consult your network #NET-
FEEDBACK
administrator. MASK255.255.000.000<CR
~nn@NET-MASKnet_mask<CR><LF> >

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Function Description Syntax Parameters/Attributes Example

NET-MASK? Get subnet mask. COMMAND net_mask – Format: xxx.xxx.xxx.xxx Get the subnet mask:
#NET-MASK?<CR> #NET-MASK?<CR>
FEEDBACK
~nn@NET-MASKnet_mask<CR><LF>
PASS Set password for login COMMAND login_level – Level of login to set Set the password for the Admin
level. #PASSlogin_level,password<CR> (End User or Administrator). protocol permission level to
password – Password for the 33333:
The default FEEDBACK
login_level. Up to 15 printable ASCII #PASSAdmin,33333<CR>
password is an empty ~nn@PASSlogin_level,password<CR><LF> chars
string.
PASS? Get password for login COMMAND login_level – Level of login to set Get the password for the
level. #PASS?login_level<CR> (End User or Administrator). Admin protocol permission
password – Password for the level:
The default FEEDBACK
login_level. Up to 15 printable ASCII #PASS?Admin<CR>
password is an empty ~nn@PASSlogin_level,password<CR><LF> chars
string.
PORTS-LIST? Get the port list of this COMMAND The following attributes comprise the Get the ports list:
machine. #PORTS-LIST?<CR> port ID: #PORTS-LIST?<CR>
▪ <direction_type> –
The response is FEEDBACK
o IN
returned in one line ~nn@PORTS-LIST[<direction_type>.<port_type>.<port_index
>,..,]<CR><LF> o OUT
and terminated with
▪ <port_type> –
<CR><LF>.
o HDMI
The response format o ANALOG_AUDIO
lists port IDs separated o AMPLIFIED_AUDIO
by commas. o SPDIF
This is an Extended o MIC
Protocol 3000 o DANTE
command. ▪ <port_index> – The port number
as printed on the front or rear
panel
PROT-VER? Get device protocol COMMAND version – XX.XX where X is a decimal Get the device protocol
version. #PROT-VER?<CR> digit version:
#PROT-VER?<CR>
FEEDBACK
~nn@PROT-VER3000:version<CR><LF>
RESET Reset device. COMMAND Reset the device:
#RESET<CR> #RESET<CR>
To avoid locking
the port due to a USB FEEDBACK
bug in Windows, ~nn@RESETOK<CR><LF>
disconnect USB
connections
immediately after
running this command.
If the port was locked,
disconnect and
reconnect the cable to
reopen the port.
SECUR Start/stop security. COMMAND security_mode – Enable the permission system:
#SECURsecurity_mode<CR> 0 – OFF (disables security) #SECUR0<CR>
The permission 1 – ON (enables security)
system works only if FEEDBACK
security is enabled ~nn@SECURsecurity_mode<CR><LF>
with the “SECUR”
command.
SECUR? Get current security COMMAND security_mode – Get current security state:
state. #SECUR?<CR> 0 – OFF (disables security) #SECUR?<CR>
FEEDBACK 1 – ON (enables security)
The permission
system works only if ~nn@SECURsecurity_mode<CR><LF>
security is enabled
with the “SECUR”
command.
SIGNAL? Get input signal status. COMMAND inp_id – Input number Get the input signal lock status
#SIGNAL?inp_id<CR> 1 – HDMI of IN 1:
status – Signal status according to #SIGNAL?1<CR>
FEEDBACK
signal validation:
~nn@SIGNALinp_id,status<CR><LF>
0 – Off
1 – On
SIGNALS-LIST? Get signal ID list of this COMMAND The following attributes comprise the Get signal ID list:
machine. #SIGNALS-LIST?<CR> signal ID: #SIGNALS-LIST?<CR>
▪ <direction_type> –
The response is FEEDBACK
o IN
returned in one line ~nn@SIGNALS-LIST[<direction_type>.<port_type>.<port_ind
ex>.<signal_type>.<index>,..,]<CR><LF> o OUT
and terminated with
▪ <port_type> –
<CR><LF>.
o HDMI
The response format o ANALOG_AUDIO
lists signal IDs o AMPLIFIED_AUDIO
separated by commas. o SPDIF
This is an Extended o MIC
Protocol 3000 o DANTE
command. ▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
o VIDEO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
SN? Get device serial COMMAND serial_number – 14 decimal digits, Get the device serial number:
number. #SN?<CR> factory assigned #SN?<CR>
FEEDBACK
~nn@SNserial_number<CR><LF>

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Function Description Syntax Parameters/Attributes Example

TIME? Get device time and COMMAND day_of_week – One of Get device time and date:
date. #TIME?<CR> {SUN,MON,TUE,WED,THU,FRI,SAT} #TIME?<CR>
date – Format: YYYY/MM/DD where
The year must be 4 FEEDBACK
YYYY = Year
digits. ~nn@TIMEday_of_week,date,time<CR><LF> MM = Month
DD = Day
The device does not
time – Format: hh:mm:ss where
validate the day of
hh = hours
week from the date.
mm = minutes
Time format - 24 ss = seconds
hours.

Date format - Day,

Month, Year.
TIME-LOC? Get local time offset COMMAND UTC_off – Offset of device time from Get local time offset from
from UTC/GMT. #TIME-LOC?<CR> UTC/GMT (without daylight time UTC/GMT:
correction) #TIME-LOC?<CR>
If the time server is FEEDBACK DayLight –
configured, device time ~nn@TIME-LOCUTC_off,DayLight<CR><LF> 0 – no daylight saving time
calculates by adding 1 – daylight saving time
UTC_off to UTC time
(that it got from the
time server) + 1 hour if
daylight savings time is
in effect.

TIME command sets

the device time without
considering these
settings.
TIME-SRV? Get time server. COMMAND mode – On/Off Get time server:
#TIME-SRV?<CR> 0 – Off #TIME-SRV?<CR>
This command is 1 – On
needed for setting FEEDBACK
~nn@TIME-SRVmode,time_server_ip,time_server_Sync_Hour,s time_server_ip – Time server IP
UDP timeout for the
erver_status<CR><LF> address
current client list.
time_server_Sync_Hour – Hour in
day for time server sync
server_status –
0 – Off
1 – On
UPGRADE Perform firmware COMMAND Perform firmware upgrade:
upgrade. #UPGRADE<CR> #UPGRADE<CR>

Not necessary for FEEDBACK

some devices. ~nn@UPGRADEOK<CR><LF>

Firmware usually
uploads to a device via
a command like
LDFW.

Reset the device to

complete the process.
VERSION? Get firmware version COMMAND firmware_version – XX.XX.XXXX Get the device firmware
number. #VERSION?<CR> where the digit groups are: version number:
major.minor.build version #VERSION?<CR>
FEEDBACK
~nn@VERSIONfirmware_version<CR><LF>
X-5V? Get 5V state of a port. COMMAND The following attributes comprise the Get the 5V state of HDMI 1:
#X-5V?<direction_type>.<port_type>.<port_index><CR> signal ID: #X-5V?OUT.HDMI.1<CR>
▪ <direction_type> –
FEEDBACK
o OUT
~nn@X-5V<direction_type>.<port_type>.<port_index>,mode
<CR><LF> ▪ <port_type> –
o HDMI
▪ <port_index> – 1
mode – OFF/ON, (not case sensitive)
X-AUD-HI-Z Set Hi-Z state. COMMAND The following attributes comprise the Set the line level output to Hi-Z
#X-AUD-HI-Z signal ID: and 70V:
This is an Extended <direction_type>.<port_type>.<port_index>,<hizstate>,<h ▪ <direction_type> – #X-AUD-HI-
Protocol 3000 izvolt><CR> o OUT ZOUT.AMPLIFIED_AUDIO.1
command. ▪ <port_type> – ,1,0<CR>
FEEDBACK
~nn@X-AUD-HI-Z o AMPLIFIED_AUDIO
Active only when
<direction_type>.<port_type>.<port_index>,<hizstate ▪ <port_index> – 1
state is high. Ignore
0:OFFN,1:ON>,<HiZVolt 0:70v,1:100v><CR><LF> ▪ <hizstate> –
everything else.
o 0– Off
o 1– On
▪ <hizvolt> –
o 0 – 70v
o 1 – 100v
X-AUD-HI-Z? Get Hi-Z/Lo-Z COMMAND The following attributes comprise the Get the line level output to Hi-Z
configuration. # X-AUD-HI-Z? signal ID: and 70V:
<direction_type>.<port_type>.<port_index>,<hizstate>,<h ▪ <direction_type> – #X-AUD-HI-
This is an izvolt><CR> o OUT Z?OUT.AMPLIFIED_AUDIO.
Extended Protocol ▪ <port_type> – 1<CR>
3000 command. FEEDBACK
~nn@X-AUD-HI-Z? o AMPLIFIED_AUDIO
<direction_type>.<port_type>.<port_index>,<HiZState ▪ <port_index> – 1
0:OFFN,1:ON>,<HiZVolt 0:70v,1:100v><CR><LF> ▪ <hizstate> –
o 0– Off
o 1– On
▪ <hizvolt> –
o 0 – 70v
o 1 – 100v

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Function Description Syntax Parameters/Attributes Example

X-AUD-LVL Set audio level of a COMMAND The following attributes comprise the Set the audio level of analog
specific signal. #X-AUD-LVL<direction_type>.<port_type>.<port_index>.<si signal ID: audio specific signal to 10:
gnal_type>.<index>,audio_level<CR> ▪ <direction_type> – #X-AUD-LVLIN.ANALOG_AU
This is an o IN DIO.5.AUDIO.1,10<CR>
Extended Protocol FEEDBACK
~nn@X-AUD-LVL<direction_type>.<port_type>.<port_index>. o OUT
3000 command.
<signal_type>.<index>,audio_level<CR><LF> ▪ <port_type> –
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o SPDIF
o DANTE
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
audio_level – Audio level in dB
(range between -60 to +30) depending
of the ability of the product.
++ (increase current value by 0.5dB)
-- (decrease current value by 0.5dB)
X-AUD-LVL? Get audio level of a COMMAND The following attributes comprise the Get the audio level of a specific
specific signal. #X-AUD-LVL?<direction_type>.<port_type>.<port_index>.<s signal ID: signal:
ignal_type>.<index><CR> ▪ <direction_type> – #X-AUD-LVL?OUT.ANALOG_
This is an o IN AUDIO.1.AUDIO.1<CR>
Extended Protocol FEEDBACK
~nn@X-AUD-LVL<direction_type>.<port_type>.<port_index>. o OUT
3000 command.
<signal_type>.<index>,audio_level<CR><LF> ▪ <port_type> –
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o SPDIF
o DANTE
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
audio_level – Audio level in dB
(range between -60 to +30) depending
of the ability of the product
X-AUD-LVL- Get the range of audio COMMAND The following attributes comprise the get the analog output 3 audio
RANGE? level in the product. #X-AUD-LVL-RANGE?<direction_type>.<port_type>.<port_ind analog_output_id: level range:
ex>.<signal_type>.<index><CR> ▪ <direction_type> – #X-AUD-LVL-RANGE?OUT.A
This is an o IN NALOG_AUDIO.3.AUDIO.1<C
Extended Protocol FEEDBACK
o OUT R>
3000 command. ~nn@X-AUD-LVL-RANGE<direction_type>.<port_type>.<port_i
ndex>.<signal_type>.<index>,audio_level_range<CR><LF> ▪ <port_type> –
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o SPDIF
o DANTE
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
X-GROUP Create/update group. Internal – for web only.
This is an
Extended Protocol
3000 command.
X-GROUP? Create/update group. Internal – for web only.
This is an
Extended Protocol
3000 command.
X-GROUP-RM Remove a group or all Internal – for web only.
groups.

This command is
designed to enable
pattern on any signal.
commonly pattern
makes sense for video,
but on some products
audio pattern is also
supported. In the
future, data pattern will
be also supported to
generate some data on
RS232 lines.

This is an Extended
Protocol 3000
command.

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Function Description Syntax Parameters/Attributes Example

X-LABEL Set the port label. COMMAND The following attributes comprise the Set the analog input label to
#X-LABEL<direction_type>.<port_type>.<port_index>.<sign signal ID: Port1:
This is an Extended al_type>.<label_text><CR> ▪ <direction_type> – #X-LABELIN.ANALOG_AUDI
Protocol 3000 o IN O.1.AUDIO,Port1<CR>
command. FEEDBACK
~nn@X-LABEL<direction_type>.<port_type>.<port_index>.<s o OUT
ignal_type>.label_text<CR><LF> ▪ <port_type> –
o HDMI
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o SPDIF
o DANTE
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ label_text – Enter label text
X-LABEL? Get the port label. COMMAND The following attributes comprise the Get the analog input:
#X-LABEL?<direction_type>.<port_type>.<port_index>.<sig signal ID: #X-LABEL?IN.ANALOG_AUD
This is an Extended nal_type>.<index><CR> ▪ <direction_type> – IO.1.AUDIO.1<CR>
Protocol 3000 o IN
command. FEEDBACK
~nn@X-LABEL?<direction_type>.<port_type>.label_text<CR> o OUT
<LF> ▪ <port_type> –
o HDMI
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o SPDIF
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
▪ label_text – Enter label text
X-LINK-GROUP SET LINK-MODE COMMAND The following attributes comprise the Set the selected id of
feature: #X-GROUP<direction_type>.<group_type>.<group_index>,lin group ID (all Caps – case sensitive): selectable ports groups of all
ked_state<CR> ▪ <direction_type> – available groups
Get linked signals o IN Set the link for group 7 (analog
groups info, this is a FEEDBACK
o OUT inputs 7 and 8) to off:
way to define group of ~nn@X-GROUP<direction_type>.<group_type>.<group_index>,
▪ <group_type> – #X-LINK-GROUPIN.ANALOG
signals for which any linked_state<CR><LF>
o ANALOG_AUDIO _AUDIO.7,OFF<CR>
action made on one of
them will be applied to ▪ <group_index> – The group index
all the members of the (1,3,5,7,9,11,13,15,17 or 19)
group. o Linked_state – OFF/ON (not
case sensitive)
This is an
Extended Protocol
3000 command.
X-LINK-GROUP? GET LINK-MODE COMMAND The following attributes comprise the Get the groups link status:
feature: #X-GROUP?<direction_type>.<group_type>.<group_index><CR group ID (all Caps – case sensitive): #X-LINK-GROUP?
> ▪ <direction_type> – IN.ANALOG_AUDIO.1<CR>
Get linked signals
FEEDBACK o IN
groups info, this is a
way to define group of ~nn@X-GROUP<direction_type>.<group_type>.<group_index>, o OUT
signals for which any linked_state<CR><LF> ▪ <group_type> –
action made on one of o ANALOG_AUDIO
them will be applied to ▪ <group_index> – The group index
all the members of the
(1,3,5,7,9,11,13,15,17 or 19)
group.
Linked_state – OFF/ON (not case
This is an sensitive)
Extended Protocol
3000 command.
Used essentially by the
web command.
X-LINK- LINK-MODE feature: COMMAND group_id – The following attributes Get the PoE state for all ports:
GROUPS-LIST? #X-LINK-GROUPS-LIST?<CR> comprise the port ID: #X-LINK-GROUPS-
Get linked signals ▪ <direction_type> – LIST?<CR>
FEEDBACK
groups info, this is a o IN
way to define group of ~nn@X-POE[[group_id,is_linked,[signal_id,...,signal_id]
]<CR><LF> o OUT
signals for which any
action made on one of ▪ <group_type> –
them will be applied to o AUDIO
all member of the ▪ <group_index> – The port
group. number as printed on the front or
The LINK mode of a rear panel
group is defined using ▪ <is_linked> – OFF/ON (not case
the command: X- sensitive)
LINK-GROUP signal_id – also includes:
▪ <signal_type> –
This is an o ANALOG_AUDIO
Extended Protocol ▪ <index> – 1
3000 command. ▪ state – OFF/ON (not case
Used essentially by the sensitive)
web

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Function Description Syntax Parameters/Attributes Example

X-MIC-TYPE Set microphone type. COMMAND The following attributes comprise the Set MIC 3 type to condenser:
#X-MIC-TYPE<direction_type>.<port_type>.<port_index>,mi port ID: #X-MIC-TYPEIN.MIC.3,co
This is an c_type<CR> ▪ <direction_type> – ndenser<CR>
Extended Protocol o IN
3000 command. FEEDBACK
~nn@X-MIC-TYPE<direction_type>.<port_type>.<port_index> ▪ <port_type> –
,mic_type<CR><LF> o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel and according to IO Config.
1 (Mic 1) to 16 (Mic 16)
mic_type – Dynamic/Condenser (not
case sensitive)
X-MIC-TYPE? Get microphone type. COMMAND The following attributes comprise the Get MIC 3 type:
#X-MIC-TYPE?<direction_type>.<port_type>.<port_index><C port ID: #X-MIC-TYPE?IN.MIC.3
This is an R> ▪ <direction_type> – <CR>
Extended Protocol o IN
3000 command. FEEDBACK
~nn@X-MIC-TYPE<direction_type>.<port_type>.<port_index> ▪ <port_type> –
,mic_type<CR><LF> o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel and according to IO Config.
1 (Mic 1) to 16 (Mic 16)
mic_type – Dynamic/Condenser (not
case sensitive)
X-MIX-LVL Set DSP matrix cross- COMMAND The following attributes comprise the Set analog audio 13 and Dante
point MIX level in dB. #X-MIX-LVLOUT.<port_type>.<port_index>.<signal_type>.<i primary signal ID (suffix 1) and follower 1 cross-point level to -25.2dB:
ndex>,IN.<port_type>.<port_index>.<signal_type>.<index> signal ID (suffix 2 or greater): #X-MIX-LVLOUT.ANALOG_A
This is an ,dB<CR> ▪ <direction_type> – IN UDIO.13.AUDIO.1,IN.DANT
Extended Protocol o IN E.1.AUDIO.1,-25.2<CR>
3000 command. FEEDBACK
~nn@X-MIX-LVLOUT.<port_type>.<port_index>.<signal_type> o OUT
.<index>,IN.<port_type>.<port_index>.<signal_type>.<ind ▪ <port_type> –
ex>,dB<CR><LF> o HDMI
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o DANTE
o SPDIF
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
X-MIX-LVL? Get DSP matrix cross- COMMAND The following attributes comprise the Get analog audio 13 and Dante
point MIX level in dB. #X-MIX-LVL?OUT.<port_type>.<port_index>.<signal_type>.< primary signal ID (suffix 1) and follower 1 cross-point level:
index>,IN.<port_type>.<port_index>.<signal_type>.<index signal ID (suffix 2 or greater): #X-MIX-LVL?OUT.ANALOG_
This is an <CR> ▪ <direction_type> – IN AUDIO.13.AUDIO.1,IN.DAN
Extended Protocol o IN TE.1.AUDIO.1<CR>
3000 command. FEEDBACK
~nn@X-MIX-LVLOUT.<port_type>.<port_index>.<signal_type> o OUT
.<index>,IN.<port_type>.<port_index>.<signal_type>.<ind ▪ <port_type> –
ex>,dB<CR><LF> o HDMI
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o DANTE
o SPDIF
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
X-MIX-MUTE Set DSP matrix cross- COMMAND The following attributes comprise the Mute analog audio 13 and
point mute state. #X-MIX-MUTEOUT.<port_type>.<port_index>.<signal_type>.< primary signal ID (suffix 1) and follower Dante 1 cross-point:
index>,IN.<port_type>.<port_index>.<signal_type>.<index signal ID (suffix 2 or greater): #X-MIX-MUTEOUT.ANALOG_
This is an >,dB<CR> ▪ <direction_type> – IN AUDIO.13.AUDIO.1,IN.DAN
Extended Protocol o IN TE.1.AUDIO.1,ON<CR>
3000 command. FEEDBACK
~nn@X-MIX-MUTEOUT.<port_type>.<port_index>.<signal_type o OUT
>.<index>,IN.<port_type>.<port_index>.<signal_type>.<in ▪ <port_type> –
dex>,<mute_state><CR><LF> o HDMI
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o DANTE
o SPDIF
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
▪ <mute_state> –
o ON
o OFF

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Function Description Syntax Parameters/Attributes Example

X-MIX-MUTE? Get DSP matrix cross- COMMAND The following attributes comprise the Get analog audio 13 and Dante
point mute state. #X-MIX-MUTE?OUT.<port_type>.<port_index>.<signal_type>. primary signal ID (suffix 1) and follower 1 cross-point mute state:
<index>,IN.<port_type>.<port_index>.<signal_type>.<inde signal ID (suffix 2 or greater): #X-MIX-MUTEOUT.ANALOG_
This is an x><CR> ▪ <direction_type> – IN AUDIO.13.AUDIO.1,IN.DAN
Extended Protocol o IN TE.1.AUDIO.1,ON<CR>
3000 command. FEEDBACK
~nn@X-MIX-MUTEOUT.<port_type>.<port_index>.<signal_type o OUT
>.<index>,IN.<port_type>.<port_index>.<signal_type>.<in ▪ <port_type> –
dex>,<mute_state><CR><LF> o HDMI
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o DANTE
o SPDIF
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
▪ <mute_state> –
o ON
o OFF
X-MUTE Set the mute state of COMMAND The following attributes comprise the Set the mute state of Mic 2
the signal. #X-MUTE<direction_type>.<port_type>.<port_index>.<signa signal ID: input to off:
l_type>.<index>,state<CR> ▪ <direction_type> – #X-MUTEIN.MIC.2.AUDIO.
This is an o IN 1,OFF<CR>
Extended Protocol o OUT
3000 command. FEEDBACK
▪ <port_type> –
~nn@X-MIC-TYPE<direction_type>.<port_type>.<port_index>
o HDMI
.<signal_type>.<index>,state<CR><LF>
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o SPDIF
o DANTE
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o VIDEO
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
state – OFF/ON (not case sensitive)
X-MUTE? Get the mute state of COMMAND The following attributes comprise the Get the mute state of Mic 3
the signal. #X-MUTE?<direction_type>.<port_type>.<port_index>.<sign signal ID: input to off:
al_type>.<index><CR> ▪ <direction_type> – #X-MUTE?IN.MIC.3.AUDIO
This is an o IN .1<CR>
Extended Protocol FEEDBACK
~nn@X-MUTE<direction_type>.<port_type>.<port_index>.<si o OUT
3000 command.
gnal_type>.<index>,state<CR><LF> ▪ <port_type> –
o HDMI
o ANALOG_AUDIO
o AMPLIFIED_AUDIO
o SPDIF
o DANTE
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o VIDEO
o AUDIO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
state – OFF/ON (not case sensitive)

AFM-20DSP – Protocol 3000 79

 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

X-PATTERN Set a pattern on the COMMAND The following attributes comprise the Set the pattern on analog audio
selected output. #X-PATTERN<direction_type>.<port_type>.<port_index>.<si signal ID: 13 to pattern 2 (blue screen):
gnal_type>.<index>,pattern_id<CR> ▪ <direction_type> – #X-PATTERNOUT.HDMI.1.V
This is an o IN IDEO AUDIO.1,2<CR>
FEEDBACK
Extended Protocol o OUT
3000 command. ~nn@X-PATTERN<direction_type>.<port_type>.<port_index>.
<signal_type>.<index>,pattern_id<CR><LF> ▪ <port_type> –
o HDMI
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o VIDEO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
Pattern_id – pattern ID
o 0 : none
o 1 : Black screen
o 2 Blue screen
o 3: White screen
o 4: Four blue squares
o 5: Vertical RGB colors bar
o 6: H grey scale
o 7: Split Bar
o 8: BW-12 (Vertical mixed bar
BW)
o 9: Cross chess B&W
o 10: Black squares chess
o 11: V grey scale split bar
X-PATTERN? Get the pattern on a COMMAND The following attributes comprise the Get the pattern on HDMI
selected output. #X-PATTERN?<direction_type>.<port_type>.<port_index>.<s signal ID: output:
ignal_type>.<index><CR> ▪ <direction_type> – #X-PATTERN?OUT.HDMI.1.
This is an o IN VIDEO.1<CR>
Extended Protocol FEEDBACK
~nn@X-PATTERN<direction_type>.<port_type>.<port_index>. o OUT
3000 command.
<signal_type>.<index>,pattern_id<CR><LF> ▪ <port_type> –
o HDMI
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o VIDEO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
Pattern_id –pattern ID
o 0 : none
o 1 : Black screen
o 2 Blue screen
o 3: White screen
o 4: Four blue squares
o 5: Vertical RGB colors bar
o 6: H grey scale
o 7: Split Bar
o 8: BW-12 (Vertical mixed bar
BW)
o 9: Cross chess B&W
o 10: Black squares chess
o 11: V grey scale split bar
X-PATTERN- Get the pattern list of a COMMAND The following attributes comprise the Get the pattern list for analog
LIST? selected output. #X-PATTERN- signal ID (case sensitive): audio 14:
LIST?<direction_type>.<port_type>.<port_index>.<signal_ ▪ <direction_type> – #X-PATTERN-
This is an type>.<index><CR> o IN LISTOUT.ANALOG_AUDIO.1
Extended Protocol o OUT 4.AUDIO.1<CR>
3000 command. FEEDBACK
~nn@X-PATTERN- ▪ <port_type> –
LIST<direction_type>.<port_type>.<port_index>.<signal_t o HDMI
ype>.<index>,pattern_list<CR><LF> ▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <signal_type> –
o VIDEO
▪ <index> – Indicates a specific
channel number when there are
multiple channels of the same type
Pattern_id –pattern ID
o 0: none
o 1: Black screen
o 2 Blue screen
o 3: White screen
o 4: Four blue squares
o 5: Vertical RGB colors bar
o 6: H grey scale
o 7: Split Bar
o 8: BW-12 (Vertical mixed bar
BW)
o 9: Cross chess B&W
o 10: Black squares chess
o 11: V grey scale split bar

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 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

X-PORT-SELECT Select ID from COMMAND group_name – These are predefined Select ID 0 from selectable
selectable ports group. #X-PORT-SELECTgroup_name,selected_id<CR> groups names, related to a specific ports group:
product. #X-PORT-SELECTANALOG_A
User may query FEEDBACK
selected_id – Currently selected UDIO.1,0<CR>
group names using ~nn@X-PORT-SELECTgroup_name,selected_id,[option_id:[<di option ID.
command: #X-PORT- rection_type>.<port_type>.<port_index>,…,<direction_typ option_id – Each option has an ID.
SELECT-LIST? e>.<port_type>.<port_index>],…,option_id:[<direction_ty
Only one option may be selected at the
pe>.<port_type>.<port_index>,…,<direction_type>.<port_t
same time.
ype>.<port_index>]]<CR><LF>
This command is When a specific option is selected, all
designed to be used related port-id members become
by machines and not selected and all port-id members from
by users. This other, unselected options, become
command is used for unselected.
feature auto-discovery The following attributes comprise the
mechanism. port ID:
▪ <direction_type> –
This is an o IN
Extended Protocol o OUT
3000 command. ▪ <port_type> –
o ANALOG_AUDIO
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <selected_id> – the selected
group ID
X-PORT- Get selected ID of COMMAND group_name – These are predefined Get selected ID of ports group:
SELECT? selectable ports group. #X-PORT-SELECT?group_name<CR> groups names, related to a specific #X-PORT-SELECTANALOG_A
product. UDIO.1<CR>
User may query FEEDBACK selected_id – Currently selected
group names using ~nn@X-PORT-SELECTgroup_name,selected_id,[option_id:[<di option ID.
command: #X-PORT- rection_type>.<port_type>.<port_index>,…,<direction_typ option_id – Each option has an ID.
SELECT-LIST?. e>.<port_type>.<port_index>],…,option_id:[<direction_ty
Only one option may be selected at the
pe>.<port_type>.<port_index>,…,<direction_type>.<port_t
same time.
This command is ype>.<port_index>]]<CR><LF>
When a specific option is selected, all
designed to be used related port-id members become
by machines and not selected and all port-id members from
by users. This other, unselected options, become
command is used for unselected.
feature auto-discovery The following attributes comprise the
mechanism. port ID:
▪ <direction_type> –
This is an Extended
Protocol 3000 o IN
command. o OUT
▪ <port_type> –
o ANALOG_AUDIO
o MIC
▪ <port_index> – The port number
as printed on the front or rear
panel
▪ <selected_id> – the selected
group ID
X-PORT- Get selected id of COMMAND The following attributes comprise the Get the selected id of
SELECT-LIST? selectable ports #X-PORT-SELECT-LIST?<CR> port ID: selectable ports groups of all
groups of all available ▪ <direction_type> – available groups:
groups. FEEDBACK #X-PORT-SELECT-LIST?<CR
o IN
~nn@X-PORT-SELECT-LIST?[[group_name,selected_id,[option >
_id:[<direction_type>.<port_type>.<port_index>,…,<direc o OUT
User may query
tion_type>.<port_type>.<port_index>],…,option_id:[<dire ▪ <port_type> –
group names using
command: #X-PORT- ction_type>.<port_type>.<port_index>,…,<direction_type> o ANALOG_AUDIO
SELECT-LIST?. .<port_type>.<port_index>]], o MIC
…,[group_name,selected_id,[option_id:[<direction_type>. ▪ <port_index> – The port number
This is an Extended <port_type>.<port_index>,…,<direction_type>.<port_type> as printed on the front or rear
Protocol 3000 .<port_index>],…,option_id:[<direction_type>.<port_type panel
command. >.<port_index>,…,<direction_type>.<port_type>.<port_ind
ex>]]]<CR><LF>
X-PRST-CURR? Get the current preset COMMAND ▪ preset_type – Get current mixer preset:
loaded per type. #X-PRST-CURR?preset_type<CR> o I/O Config – IOCONFIG #X-PRST-
o System Preset – CURR?IOCONFIG.SYSTEM.M
To get the list of preset FEEDBACK IXER<CR>
~nn@X-ROUTE<preset_type,[preset_id:name:lock_state]<CR> IOCONFIG.SYSTEM
types existing in your ~01@X-PRST-CURR
product use the <LF> o Snapshot –
IOConfig.SYSTEM.MIXER,[
command: IOCONFIG.SYSTEM.MIXER
2:Snapshot%201:OFF]<CR>
X-PRST-TYPES? ▪ <preset_id> – preset index <LF>
▪ <name> – the name of the preset in
This is an Extended URL encode format
Protocol 3000 ▪ <lock_state> –
command.
o ON
o OFF

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 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

X-PRST-LOCK Set LOCK state of a COMMAND ▪ preset_type – lock mixer preset 9:
preset per type. #X-PRST-LOCKpreset_type,<preset_id>,<lock_state><CR> o I/O Config – IOCONFIG X-PRST-
o System Preset – LOCKIOCONFIG.SYSTEM.MI
this is an extended FEEDBACK XER,9<CR>
IOCONFIG.SYSTEM
preset command using ~nn@X-ROUTE<preset_type,[preset_id:name:lock_state]<CR> ~01@X-PRST-CURR
<LF> o Snapshot –
preset type as first IOConfig.SYSTEM.MIXER,[
IOCONFIG.SYSTEM.MIXER
parameter. This is 2:Snapshot%201:OFF]<CR>
used essentially when ▪ <preset_id> – preset index <LF>
we have different types ▪ <lock_state> –
of Presets inside the o ON
same system. o OFF
To get the list of preset
types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-LOCK? Get LOCK state of a COMMAND ▪ preset_type – Get lock mixer preset 9 status:
preset per type. #X-PRST-LOCK?preset_type,<preset_id>,<lock_state><CR> o I/O Config – IOCONFIG #X-PRST-
o System Preset – LOCK?IOCONFIG.SYSTEM.M
this is an extended FEEDBACK IXER,9<CR>
IOCONFIG.SYSTEM
preset command using ~nn@X-ROUTE<preset_type,[preset_id:name:lock_state]<CR> ~01@X-PRST-CURR
<LF> o Snapshot –
preset type as first IOConfig.SYSTEM.MIXER,[
IOCONFIG.SYSTEM.MIXER
parameter. This is 2:Snapshot%201:OFF]<CR>
used essentially when ▪ <preset_id> – preset index <LF>
we have different types ▪ <lock_state> –
of Presets inside the o ON
same system. o OFF
To get the list of preset
types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-LST? Get the preset list of a COMMAND ▪ preset_type – Get the IO configuration list:
specific preset type. #X-PRST-LST?preset_type<CR> o I/O Config – IOCONFIG #X-PRST-
o System Preset – LST?IOCONFIG<CR>
this is an extended FEEDBACK
IOCONFIG.SYSTEM
preset command using ~nn@X-PRST- [[1:4x16:ON],[2:6x14:ON
LST<preset_type,[preset_id:name:lock_state]<CR><LF> o Snapshot – ],[3:8x12:ON],[4:10x10:
preset type as first
IOCONFIG.SYSTEM.MIXER ON],[5:12x8:ON],[6:14x6
parameter. This is
used essentially when ▪ <name> – the name of the preset :ON],[7:16x4:ON]]
we have different types ▪ <lock_state> –
of Presets inside the o ON
same system. o OFF
To get the list of preset
types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-NAME Set the name of a COMMAND ▪ preset_type – Set the name of a preset (per
preset per type. #X-PRST-NAMEpreset_type,preset_id,name<CR> o I/O Config – IOCONFIG type):
#X-PRST-
FEEDBACK o System Preset –
this is an extended NAMEIOCONFIG.SYSTEM.MI
IOCONFIG.SYSTEM
preset command using ~nn@X-PRST-NAMEpreset_type,preset_id,name<CR><LF> XER,9,ROOM1<CR>
o Snapshot –
preset type as first
IOCONFIG.SYSTEM.MIXER
parameter. This is
used essentially when ▪ preset_id – preset index
we have different types ▪ name – the name of the preset in
of Presets inside the URL encode format (no spaces)
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.

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 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

X-PRST-NAME? Get the name of a COMMAND ▪ preset_type – Get the name of a preset (per
preset per type. #X-PRST-NAME?preset_type,preset_id,name<CR> o I/O Config – IOCONFIG type):
#X-PRST-
FEEDBACK o System Preset –
this is an extended NAME?IOCONFIG.SYSTEM.M
IOCONFIG.SYSTEM
preset command using ~nn@X-PRST-NAMEpreset_type,preset_id,name<CR><LF> IXER,9<CR>
o Snapshot –
preset type as first ~01@X-PRST-
IOCONFIG.SYSTEM.MIXER
parameter. This is NAME?IOConfig.SYSTEM.M
used essentially when ▪ preset_id – preset index IXER,9,Room1<CR><LF>
we have different types ▪ name – the name of the preset in
of Presets inside the URL encode format
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-RCL Recall saved preset list COMMAND ▪ preset_type – Recall mixer preset 8:
per type. #X-PRST-RCLpreset_type,preset_id<CR> o I/O Config – IOCONFIG #X-PRST-
o System Preset – RCL?IOCONFIG.SYSTEM.MI
this is an extended FEEDBACK XER,8<CR>
IOCONFIG.SYSTEM
preset command using ~nn@X-PRST-RCLpreset_type,preset_id<CR><LF>
o Snapshot –
preset type as first
IOCONFIG.SYSTEM.MIXER
parameter. This is
used essentially when ▪ preset_id – preset index
we have different types
of Presets inside the
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-RCL- Recall LAST preset COMMAND ▪ preset_type – Recall the last mixer preset:
LAST per type, this #X-PRST-RCL-LASTpreset_type,preset_id<CR> o I/O Config – IOCONFIG #X-PRST-RCL-
command just o System Preset – LASTIOCONFIG.SYSTEM.MI
retrieves the last FEEDBACK XER<CR>
~nn@X-PRST-RCL-LASTpreset_type,preset_id<CR><LF> IOCONFIG.SYSTEM
preset loaded from the
o Snapshot –
history of preset
IOCONFIG.SYSTEM.MIXER
activity and RECALLs
it. ▪ preset_id – preset index

this is an extended
preset command using
preset type as first
parameter. This is
used essentially when
we have different types
of Presets inside the
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-RCL- Recall NEXT preset COMMAND ▪ preset_type – Recall next mixer preset:
NEXT per type, this #X-PRST-RCL-NEXTpreset_type,preset_id<CR> o I/O Config – IOCONFIG #X-PRST-RCL-
command increments o System Preset – NEXTIOCONFIG.SYSTEM.MI
by one the current FEEDBACK XER<CR>
~nn@X-PRST-RCL-NEXTpreset_type,preset_id<CR><LF> IOCONFIG.SYSTEM
preset id loaded and
o Snapshot –
loads it. If the index is
IOCONFIG.SYSTEM.MIXER
the highest, recall will
fail. ▪ preset_id – preset index

this is an extended
preset command using
preset type as first
parameter. This is
used essentially when
we have different types
of Presets inside the
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.

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 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

X-PRST-RCL- Recall previous preset COMMAND ▪ preset_type – Recall previous mixer preset:
PREV per type, this #X-PRST-RCL-PREVpreset_type,preset_id<CR> o I/O Config – IOCONFIG #X-PRST-RCL-
command increments o System Preset – PREVIOCONFIG.SYSTEM.MI
by one the current FEEDBACK XER<CR>
~nn@X-PRST-RCL-PREVpreset_type,preset_id<CR><LF> IOCONFIG.SYSTEM
preset id loaded and
o Snapshot –
loads it. If the index is
IOCONFIG.SYSTEM.MIXER
the lowest, recall will
fail. ▪ preset_id – preset index

this is an extended
preset command using
preset type as first
parameter. This is
used essentially when
we have different types
of Presets inside the
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-RESET Reset preset per type COMMAND ▪ preset_type – Reset mixer preset 9:
#X-PRST-RESETpreset_type,preset_id<CR> o I/O Config – IOCONFIG #X-PRST-
this is an extended RESETIOCONFIG.SYSTEM.M
o System Preset –
preset command using FEEDBACK IOCONFIG.SYSTEM IXER,9<CR>
preset type as first ~nn@X-PRST-RESETpreset_type,preset_id<CR><LF>
o Snapshot –
parameter. This is
IOCONFIG.SYSTEM.MIXER
used essentially when
we have different types ▪ preset_id – preset index
of Presets inside the
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-SAVED? Get SAVED status for COMMAND ▪ preset_type – Get saved status of mixer
a preset type. This flag #X-PRST-SAVED?preset_type<CR> o I/O Config – IOCONFIG preset:
indicates to the WEB if #X-SAVED?
FEEDBACK o System Preset –
a change have been IOCONFIG.SYSTEM IOCONFIG.SYSTEM.MIXER<
made since the last ~nn@X-PRST-SAVEDpreset_type,saved_status<CR><LF> CR>
o Snapshot –
RECALL and has not
IOCONFIG.SYSTEM.MIXER
been saved.
▪ Saved_status – preset index
this is an extended o 0 – False (not saved)
preset command using o 1 – True (saved)
preset type as first
parameter. This is
used essentially when
we have different types
of Presets inside the
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.
X-PRST-STO Store current changes COMMAND ▪ preset_type – Store changes into mixer
into a preset (per #X-PRST-STOpreset_type,preset_id<CR> o I/O Config – IOCONFIG preset 9:
type). #X-PRST-
FEEDBACK o System Preset –
IOCONFIG.SYSTEM STOIOCONFIG.SYSTEM.MIX
this is an extended ~nn@X-PRST-STOpreset_type,saved_status<CR><LF> ER,9<CR>
o Snapshot –
preset command using
IOCONFIG.SYSTEM.MIXER
preset type as first
parameter. This is ▪ preset_id – preset index
used essentially when
we have different types
of Presets inside the
same system.

To get the list of preset

types existing in your
product use the
command:
X-PRST-TYPES?

This is an Extended
Protocol 3000
command.

AFM-20DSP – Protocol 3000 84

 Kramer Electronics Ltd.

Function Description Syntax Parameters/Attributes Example

X-PRST-TYPES? Get the types of COMMAND ▪ preset_type – Get preset types:
presets that the #X-PRST-TYPES?<CR> o IOCONFIG – used for I/O #X-PRST-TYPES?<CR>
system supports and configuration setup presets:
their hierarchy. FEEDBACK
o 1: 4x16
~nn@X-PRST-TYPESpreset_type<CR><LF>
o 2 6x14
o 3: 8x12
o 4: 10x10
o 5: 12x8
o 6: 14x6
o 7: 16x4
o 8: 12x8
o IOCONFIG.SYSTEM – used for
system preset per IOConfig, we
have 10 preset banks per
IOConfig setup, Preset #1 is the
default system preset for this
setup and is READ ONLY,
Preset #2 is used for the first
user system preset, Preset #3 for
the second etc.
o IOCONFIG.SYSTEM.MIXER –
used for a Mixer snapshot of a
specific system preset per
IOConfig. There are 10 MIXER
snapshots per System presets in
each IOConfig setup, Snapshot
#1 is the default MIXER
snapshot and is READ ONLY.
Snapshot #2 is used for the first
user Mixer snapshot, Snapshot
#3 for the second etc.
X-SIGNAL-PIPE Set a pipe between Internal – for web only.
Two outputs. This is
when we want to “tee”
a signal to another
output.
Used essentially into
AFM-20DSP to output
audio signal to
AMPLIFIED outputs.

This is an
Extended Protocol
3000 command.
X-SIGNAL- Get a pipe Internal – for web only.
PIPE? configuration for an
output port. This is
when we want to “tee”
a signal to another
output.
Used essentially into
AFM-20DSP to output
audio signal to
AMPLIFIED outputs.

This is an
Extended Protocol
3000 command.

AFM-20DSP – Protocol 3000 85

 Kramer Electronics Ltd.

Result and Error Codes

Syntax

In case of an error, the device responds with an error message. The error message syntax:
• ~NN@ERR XXX<CR><LF> – when general error, no specific command
• ~NN@CMD ERR XXX<CR><LF> – for specific command
• NN – machine number of device, default = 01
• XXX – error code

Error Codes
Error Name Error Code Description
P3K_NO_ERROR 0 No error
ERR_PROTOCOL_SYNTAX 1 Protocol syntax
ERR_COMMAND_NOT_AVAILABLE 2 Command not available
ERR_PARAMETER_OUT_OF_RANGE 3 Parameter out of range
ERR_UNAUTHORIZED_ACCESS 4 Unauthorized access
ERR_INTERNAL_FW_ERROR 5 Internal FW error
ERR_BUSY 6 Protocol busy
ERR_WRONG_CRC 7 Wrong CRC
ERR_TIMEDOUT 8 Timeout
ERR_RESERVED 9 (Reserved)
ERR_FW_NOT_ENOUGH_SPACE 10 Not enough space for data (firmware, FPGA…)
ERR_FS_NOT_ENOUGH_SPACE 11 Not enough space – file system
ERR_FS_FILE_NOT_EXISTS 12 File does not exist
ERR_FS_FILE_CANT_CREATED 13 File can’t be created
ERR_FS_FILE_CANT_OPEN 14 File can’t open
ERR_FEATURE_NOT_SUPPORTED 15 Feature is not supported
ERR_RESERVED_2 16 (Reserved)
ERR_RESERVED_3 17 (Reserved)
ERR_RESERVED_4 18 (Reserved)
ERR_RESERVED_5 19 (Reserved)
ERR_RESERVED_6 20 (Reserved)
ERR_PACKET_CRC 21 Packet CRC error
ERR_PACKET_MISSED 22 Packet number isn't expected (missing packet)
ERR_PACKET_SIZE 23 Packet size is wrong
ERR_RESERVED_7 24 (Reserved)
ERR_RESERVED_8 25 (Reserved)
ERR_RESERVED_9 26 (Reserved)
ERR_RESERVED_10 27 (Reserved)
ERR_RESERVED_11 28 (Reserved)
ERR_RESERVED_12 29 (Reserved)
ERR_EDID_CORRUPTED 30 EDID corrupted
ERR_NON_LISTED 31 Device specific errors
ERR_SAME_CRC 32 File has the same CRC – not changed
ERR_WRONG_MODE 33 Wrong operation mode
ERR_NOT_CONFIGURED 34 Device/chip was not initialized

AFM-20DSP – Protocol 3000 86

The warranty obligations of Kramer Electronics Inc. (“Kramer Electronics”) for this product are limited to the terms set forth below:
What is Covered
This limited warranty covers defects in materials and workmanship in this product.
What is Not Covered
This limited warranty does not cover any damage, deterioration or malfunction resulting from any alteration, modification, improper or unreasonable use
or maintenance, misuse, abuse, accident, neglect, exposure to excess moisture, fire, improper packing and shipping (such claims must be presented to
the carrier), lightning, power surges, or other acts of nature. This limited warranty does not cover any damage, deterioration or malfunction resulting
from the installation or removal of this product from any installation, any unauthorized tampering with this product, any repairs attempted by anyone
unauthorized by Kramer Electronics to make such repairs, or any other cause which does not relate directly to a defect in materials and/or workmanship
of this product. This limited warranty does not cover cartons, equipment enclosures, cables or accessories used in conjunction with this product.
Without limiting any other exclusion herein, Kramer Electronics does not warrant that the product covered hereby, including, without limitation, the
technology and/or integrated circuit(s) included in the product, will not become obsolete or that such items are or will remain compatible with any other
product or technology with which the product may be used.
How Long this Coverage Lasts
The standard limited warranty for Kramer products is seven (7) years from the date of original purchase, with the following exceptions:
1. All Kramer VIA hardware products are covered by a standard three (3) year warranty for the VIA hardware and a standard three (3) year
warranty for firmware and software updates; all Kramer VIA accessories, adapters, tags, and dongles are covered by a standard one (1) year
warranty.
2. Kramer fiber optic cables, adapter-size fiber optic extenders, pluggable optical modules, active cables, cable retractors, ring mounted
adapters, portable power chargers, Kramer speakers, and Kramer touch panels are all covered by a standard one (1) year warranty.
3. All Kramer Cobra products, all Kramer Calibre products, all Kramer Minicom digital signage products, all HighSecLabs products, all
streaming, and all wireless products are covered by a standard three (3) year warranty.
4. All Sierra Video MultiViewers are covered by a standard five (5) year warranty.
5. Sierra switchers & control panels are covered by a standard seven (7) year warranty (excluding power supplies and fans that are covered for
three (3) years).
6. K-Touch software is covered by a standard one (1) year warranty for software updates.
7. All Kramer passive cables are covered by a ten (10) year warranty.
Who is Covered
Only the original purchaser of this product is covered under this limited warranty. This limited warranty is not transferable to subsequent purchasers or
owners of this product.
What Kramer Electronics Will Do
Kramer Electronics will, at its sole option, provide one of the following three remedies to whatever extent it shall deem necessary to satisfy a proper
claim under this limited warranty:
1. Elect to repair or facilitate the repair of any defective parts within a reasonable period of time, free of any charge for the necessary parts and
labor to complete the repair and restore this product to its proper operating condition. Kramer Electronics will also pay the shipping costs
necessary to return this product once the repair is complete.
2. Replace this product with a direct replacement or with a similar product deemed by Kramer Electronics to perform substantially the same
function as the original product. If a direct or similar replacement product is supplied, the original product’s end warranty date remains
unchanged and is transferred to the replacement product.
3. Issue a refund of the original purchase price less depreciation to be determined based on the age of the product at the time remedy is sought
under this limited warranty.
What Kramer Electronics Will Not Do Under This Limited Warranty
If this product is returned to Kramer Electronics or the authorized dealer from which it was purchased or any other party authorized to repair Kramer
Electronics products, this product must be insured during shipment, with the insurance and shipping charges prepaid by you. If this product is returned
uninsured, you assume all risks of loss or damage during shipment. Kramer Electronics will not be responsible for any costs related to the removal or re-
installation of this product from or into any installation. Kramer Electronics will not be responsible for any costs related to any setting up this product, any
adjustment of user controls or any programming required for a specific installation of this product.
How to Obtain a Remedy Under This Limited Warranty
To obtain a remedy under this limited warranty, you must contact either the authorized Kramer Electronics reseller from whom you purchased this
product or the Kramer Electronics office nearest you. For a list of authorized Kramer Electronics resellers and/or Kramer Electronics authorized service
providers, visit our web site at www.kramerav.com or contact the Kramer Electronics office nearest you.
In order to pursue any remedy under this limited warranty, you must possess an original, dated receipt as proof of purchase from an authorized Kramer
Electronics reseller. If this product is returned under this limited warranty, a return authorization number, obtained from Kramer Electronics, will be
required (RMA number). You may also be directed to an authorized reseller or a person authorized by Kramer Electronics to repair the product.
If it is decided that this product should be returned directly to Kramer Electronics, this product should be properly packed, preferably in the original
carton, for shipping. Cartons not bearing a return authorization number will be refused.
Limitation of Liability
THE MAXIMUM LIABILITY OF KRAMER ELECTRONICS UNDER THIS LIMITED WARRANTY SHALL NOT EXCEED THE ACTUAL PURCHASE
PRICE PAID FOR THE PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY LAW, KRAMER ELECTRONICS IS NOT RESPONSIBLE FOR
DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR CONDITION, OR
UNDER ANY OTHER LEGAL THEORY. Some countries, districts or states do not allow the exclusion or limitation of relief, special, incidental,
consequential or indirect damages, or the limitation of liability to specified amounts, so the above limitations or exclusions may not apply to you.
Exclusive Remedy
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THIS LIMITED WARRANTY AND THE REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND
IN LIEU OF ALL OTHER WARRANTIES, REMEDIES AND CONDITIONS, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. TO THE
MAXIMUM EXTENT PERMITTED BY LAW, KRAMER ELECTRONICS SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES,
INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IF KRAMER
ELECTRONICS CANNOT LAWFULLY DISCLAIM OR EXCLUDE IMPLIED WARRANTIES UNDER APPLICABLE LAW, THEN ALL IMPLIED
WARRANTIES COVERING THIS PRODUCT, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
SHALL APPLY TO THIS PRODUCT AS PROVIDED UNDER APPLICABLE LAW.
IF ANY PRODUCT TO WHICH THIS LIMITED WARRANTY APPLIES IS A “CONSUMER PRODUCT” UNDER THE MAGNUSON-MOSS WARRANTY
ACT (15 U.S.C.A. §2301, ET SEQ.) OR OTHER APPLICABLE LAW, THE FOREGOING DISCLAIMER OF IMPLIED WARRANTIES SHALL NOT
APPLY TO YOU, AND ALL IMPLIED WARRANTIES ON THIS PRODUCT, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
THE PARTICULAR PURPOSE, SHALL APPLY AS PROVIDED UNDER APPLICABLE LAW.
Other Conditions
This limited warranty gives you specific legal rights, and you may have other rights which vary from country to country or state to state.
This limited warranty is void if (i) the label bearing the serial number of this product has been removed or defaced, (ii) the product is not distributed by
Kramer Electronics or (iii) this product is not purchased from an authorized Kramer Electronics reseller. If you are unsure whether a reseller is an
authorized Kramer Electronics reseller, visit our web site at www.kramerav.com or contact a Kramer Electronics office from the list at the end of this
document.
Your rights under this limited warranty are not diminished if you do not complete and return the product registration form or complete and submit the
online product registration form. Kramer Electronics thanks you for purchasing a Kramer Electronics product. We hope it will give you years of
satisfaction.
 P/N: 2900- 301204 Rev: 3

SAFETY WARNING
Disconnect the device from the power supply before opening and servicing

For the latest information on our products and a list of Kramer distributors, visit our website where
updates to this user manual may be found.

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