U S ER GU IDE

ARPD 1000
Advanced Return Path Demodulator
CAUTION
These servicing and installation instructions are for use by qualified personnel only. To reduce the risk
of electrical shock, do not perform any servicing other than that contained in the Installation and
Troubleshooting Instructions unless you are qualified to do so. Refer all servicing to qualified service
personnel.

SPECIAL SYMBOLS THAT MIGHT APPEAR ON THE EQUIPMENT

This symbol indicates that dangerous voltage levels are present within the equipment.
These voltages are not insulated and may be of sufficient strength to cause serious
bodily injury when touched. The symbol may also appear on schematics.

The exclamation point, within an equilateral triangle, is intended to alert the user to
the presence of important installation, servicing, and operating instructions in the
documents accompanying the equipment.

For continued protection against fire, replace all fuses only with fuses having the
same electrical ratings marked at the location of the fuse.

Electrostatic discharge (ESD) can damage the ARPD. Wear an antistatic wrist strap
attached to a chassis ground to prevent ESD damage.

This equipment operates over the marked Voltage and Frequency range without
requiring manual setting of any selector switches. Different types of line cord sets
may be used for connections to the mains supply circuit and should comply with the
electrical code requirements of the country of use. This equipment requires a
grounding conductor in the line cord.

WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN
OR MOISTURE. THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING AND NO
OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, SHALL BE PLACED ON THE APPARATUS.
CAUTION: TO PREVENT ELECTRICAL SHOCK, IF THIS UNIT IS PROVIDED WITH A POLARIZED
PLUG, DO NOT CONNECT THE PLUG INTO AN EXTENSION CORD, RECEPTACLE, OR OTHER
OUTLET UNLESS THE PLUG CAN BE FULLY INSERTED WITH NO PART OF THE BLADES EXPOSED.
CAUTION: TO ENSURE REGULATORY AND SAFETY COMPLIANCE, USE ONLY THE PROVIDED
POWER CABLES.
EQUIPMENT MUST BE CONNECTED TO PROTECTIVE EARTH
THIS EQUIPMENT HAS BEEN DESIGNED FOR CONNECTION TO AN IT POWER DISTRIBUTION
SYSTEM WHEN POWERED BY AC.
THIS DEVICE WHEN POWERED BY DC MUST BE PROTECTED BY A LISTED BRANCH CIRCUIT
PROTECTER RATED MAXIMUM 25A.
It is recommended that the customer install an AC surge arrestor in the AC outlet to which this device
is connected. This is to avoid damaging the equipment by local lightning strikes and other electrical
surges.

i
 FCC COMPLIANCE
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the Installation Manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his/her own expense. Any changes or
modifications not expressly approved by Motorola could void the user’s authority to operate this
equipment under the rules and regulations of the FCC.
CANADIAN COMPLIANCE
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

International Declaration of Conformity

We Motorola, Inc.
101 Tournament Drive
Horsham, PA 19044, U.S.A.
declare under our sole responsibility that the
Advanced Return Path Demodulator ARPD 1000
to which this declaration relates is in conformity with one or more of the following standards:
EMC Standards
CISPR-22: 1998, EN55024
Class B
EN61000-6-1
EN55022 EN61000-4-2
EN61000-3-2 EN61000-4-3
EN61000-3-3 EN61000-4-4
EN61000-4-5
EN61000-4-6
EN61000-4-8
EN61000-4-11
Safety
Standards

IEC 60950-1

1st Edition: 2001

EMC Directive 2004/108/EC Low Voltage Directive 2006/95/EC RoHS Directive 2002/95/EC

ii
CARING FOR THE ENVIRONMENT BY RECYCLING
When you see this symbol on a Motorola product, do not dispose of the product with
residential or commercial waste.
Recycling your Motorola Equipment
Please do not dispose of this product with your residential or commercial waste. Some
countries or regions, such as the European Union, have set up systems to collect and
recycle electrical and electronic waste items. Contact your local authorities for information
about practices established for your region. If collection systems are not available, call
Motorola Customer Service for assistance.

© 2007 Motorola, Inc. All rights reserved. No part of this publication may be reproduced in any form or
by any means or used to make any derivative work (such as translation, transformation, or adaptation)
without written permission from Motorola, Inc.
Motorola reserves the right to revise this publication and to make changes in content from time to time
without obligation on the part of Motorola to provide notification of such revision or change. Motorola
provides this guide without warranty of any kind, implied or expressed, including, but not limited to, the
implied warranties of merchantability and fitness for a particular purpose. Motorola may make
improvements or changes in the product(s) described in this manual at any time.
MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office.
MediaCipher is a registered trademark of Motorola. Pentium is a registered trademark of Intel
Corporation. Microsoft, Windows, Windows NT and Windows XP are either trademarks or registered
trademarks of Microsoft Corporation in the U.S. and/or other countries. Microsoft product screen
shot(s) reprinted with permission from Microsoft Corporation. Sun, Java and all other Java-based marks
are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries.
Netscape Navigator is a registered trademark of Netscape Communications Corporation. UNIX is a
registered trademark of The Open Group. Linux is a registered trademark of Linus Torvalds. Infineon
Technologies is a trademark of Infineon Technologies AG. Finisar is a trademark of the Finisar
Corporation. Optical Communications Products and OCP are trademarks of Optical Communications
Products, Inc. Methode Electronics is a trademark of Methode Electronics, Inc. Agilent Technologies is
a trademark of Agilent Technologies, Inc. The following websites are not sponsored, affiliated, or
controlled by Motorola, Inc.: www.netscape.com, www.microsoft.com, www.infineon.com, www.ocp-
inc.com, www.methode.com, www.agilent.com, www.finisar.com, and www.java.sun.com. All other
product or service names are the property of their respective owners.
© Motorola, Inc. 2007

iii
CONTENTS
1 ARPD 1000 Overview............................................................................................................................................ 1
System Overview.............................................................................................................................................. 1
Chassis Overview............................................................................................................................................. 2
Demodulator Board.......................................................................................................................................... 2
Front Panel Hardware ..................................................................................................................................... 3
Back Panel Hardware ..................................................................................................................................... 5
2 Installation ............................................................................................................................................................. 7
Preparation ....................................................................................................................................................... 7
Mounting the ARPD 1000 ................................................................................................................................ 8
Installing DM Boards....................................................................................................................................... 9
Connecting Interface Cables........................................................................................................................ 10
Connecting Ethernet Cables.................................................................................................................. 10
Connecting RF Coaxial Cables .............................................................................................................. 10
Cascading DM Boards .................................................................................................................................. 11
Supplying AC Power to the ARPD 1000 (Model 535655-001 Only) .......................................................... 12
Supplying DC Power to the ARPD 1000 (Model 535655-002 Only) .......................................................... 12
3 Setup and Configuration.................................................................................................................................... 15
Console ............................................................................................................................................................ 15
Connecting to the Console Port............................................................................................................ 15
Command Line Interface........................................................................................................................ 15
Element Manager........................................................................................................................................... 18
Getting Started ........................................................................................................................................ 19
Chassis ..................................................................................................................................................... 21
DM Boards............................................................................................................................................... 30
Changing Passwords.............................................................................................................................. 37
Firmware Upgrades ....................................................................................................................................... 38
Element Manager Alarms ............................................................................................................................. 39
Appendix A: ARPD 1000 RF Specifications........................................................................................................ 41
Appendix B: ARPD 1000 General Specifications .............................................................................................. 43
Appendix C: Demodulator Assignment .............................................................................................................. 45
Horizontal Assignment .................................................................................................................................. 46
Vertical Assignment....................................................................................................................................... 50
Appendix D: Fan Replacement ............................................................................................................................ 53
Fan Removal.................................................................................................................................................... 53
Replacement Fan Kit Assemblies ................................................................................................................ 54

v
CONTENTS

Figure 1-1 — ARPD 1000 System Diagram...........................................................................................................2

Figure 1-2 — DM Board..........................................................................................................................................3
Figure 1-3 — ARPD 1000 Front Panel ...................................................................................................................3
Figure 1-4 — ARPD 1000 Back Panel, AC version ..............................................................................................5
Figure 1-5 — ARPD 1000 Back Panel, DC version ..............................................................................................5
Figure 2-1 — Rack Mounting the ARPD 1000 ......................................................................................................8
Figure 2-2 — Installing DM Board Modules........................................................................................................9
Figure 2-3— Typical RF Coaxial Cable Connection ..........................................................................................10
Figure 2-4 — Cascading DM Board connections.............................................................................................11
Figure 2-5 — Connecting the DC power source to the ARPD 1000................................................................12
Figure 3-1 — Element Manager Window ..........................................................................................................19
Figure 3-2 — Connect Dialog Screen.................................................................................................................20
Figure 3-3 — Connect Dialog – Connection Error ............................................................................................21
Figure 3-4 — Network Management View ........................................................................................................22
Figure 3-5 — RPD Configuration Parameter View............................................................................................23
Figure 3-6 — NMS Management View ..............................................................................................................25
Figure 3-7 — Re-Settable Stats View.................................................................................................................26
Figure 3-8 — Stored Stats View ..........................................................................................................................27
Figure 3-9 — ARPD 1000 Traps & Alarms View ................................................................................................28
Figure 3-10 — ARPD Revisions View..................................................................................................................29
Figure 3-11 — DM Board Configuration View...................................................................................................30
Figure 3-12 — DM Board Configuration View...................................................................................................31
Figure 3-13 — Re-Settable Stats View for Demods on a DM Board .............................................................33
Figure 3-14 — Stored Stats View for Demods on a DM Board ......................................................................34
Figure 3-15 — Trap Threshold View for a Specified DM Board .....................................................................35
Figure 3-16 — Alarm View for a DM Board .......................................................................................................36
Figure 3-17 — Change Password Screen..........................................................................................................37
Figure 3-18 — Local BOOTP.................................................................................................................................38
Figure C-1 — ARPD EM Screen to Configure Legacy Mode ..........................................................................46
Figure C-2 — ARPD Horizontal Demod Assignments ......................................................................................47
Figure C-3 — ARPD Vertical Demod Assignments...........................................................................................50
Figure D-1 — Fan removal/replacement............................................................................................................54

Table 1-1 — Front Panel Indicators ......................................................................................................................4

Table 1-2 — Rear Panel Connectors.....................................................................................................................5
Table 3-1 — Terminal Emulation Settings ..........................................................................................................15
Table 3-2 — Network Parameters.......................................................................................................................22
Table 3-3 — RPD Configuration Parameters .....................................................................................................24
vi
CONTENTS

Table 3-4 — Re-Settable Stats Parameters ...................................................................................................... 26

Table 3-5 — Stored Stats Parameters ............................................................................................................... 27
Table 3-6 — DM Board Parameters ................................................................................................................... 31
Table 3-7 — Demod Parameters......................................................................................................................... 32
Table 3-8 — Parameters for Re-Settable Stats for Demods on a DM Board............................................... 33
Table 3-9 — Parameters for Stored Stats for Demods on a DM Board........................................................ 34
Table 3-10 — Trap Threshold Parameters for a Specified Demod Board .................................................... 35
Table 3-11 — SNMP Traps & Alarms ................................................................................................................. 39
Table C-1 — ARPD Horizontal Deployment Use Cases ................................................................................... 48
Table C-2 — ARPD Vertical Deployment Use Cases........................................................................................ 50

vii
1 ARPD 1000 OVERVIEW
The ARPD 1000 is a modular, one RU product that supports the inclusion of up to six
removable (hot-swappable) demodulator boards (DM boards). The ARPD 1000
performs the same functions as the existing RPD 1000/2000 products, but offers a
larger number of upstream demodulators in a smaller physical package. In addition
to saving rack space, the other main advantage of the ARPD 1000 over the
RPD 1000/2000 is that it allows more upstream demodulators to be placed in each
upstream path. This increases the bandwidth capacity of each return path, allowing
the system to support future STB applications that require the ability to send large
amounts of data in the upstream direction.
The ARPD 1000 is a burst demodulator. At the input, the ARPD 1000 receives up to
six different electrical RF inputs. Each RF input contains DQPSK modulated MAC
cells transmitted upstream by STBs out in the cable plant. A demodulator within a
DM board in the ARPD 1000 chassis performs de-randomization and error correction
(FEC). The output of the ARPD 1000 is UDP/IP/Ethernet carrying an RPD frame as
the UDP payload. The ARPD 1000 sends the RPD frame to the destination IP
address configured by the operator using the configured destination UDP port
number.

System Overview
A system diagram showing multiple ARPD 1000 devices in a typical cable headend
or hub location is illustrated in Figure 1-1. The ARPD 1000 receives DQPSK
modulated RF signals transmitted by STBs. The demodulated MAC cells are then
collected and transmitted to another system device, using the RPD protocol.
The system devices to which the ARPD 1000 forwards MAC cells are the
RADD 6000 and NC 1500. The RADD 6000 is used to collect STB polling data and
then forwards this information to the DAC 6000. The NC 1500 is used in interactive
cable systems where third-party party servers need to communicate with cable
STBs. VOD is an example of an interactive system. The NC 1500, as shown in the
figure, acts as a network gateway between the third-party application network and
the STBs. The NC 1500 is not required for cable systems that do not have interactive
services.
When used in an interactive system, the ARPD can be configured to send all
received data, both interactive and poll traffic, to the NC 1500, where the NC 1500
forwards all polling data to the RADD.

1
1 ARPD 1000 OVERVIEW

Figure 1-1 — ARPD 1000 System Diagram

3rd Party Application Network

OM-1000
VOD NC-1500

Motorola OAM&P Network

OM-1000

RF Combining Network
SERVER

RADD HFC
STB
Network
ARPD #1
RADD
Other
ARPD #2

ARPD #3
DAC-6000

Chassis Overview
The ARPD 1000 chassis occupies 1 RU and supports up to six removable and
hot-swappable DM boards, a set of six input and output RF ports (F-type), an AC or
–48 V DC power input, two 10/100 BaseT Ethernet ports (RJ-45), a console port
(DB9), and a set of LED indicators. The modular DM slots are accessed from the
front panel behind a hinged cover. LED indicator lights and the console port are
located on the front panel. The power port and the Ethernet Ports are located on the
rear panel.
The ARPD 1000 chassis consists of three main sub-systems. These are the DM
board slots and backplane, the main board, and the power supply. The DM board
slots and backplane support up to 6 DM boards. The main board contains the host
processor (CPU), NVRAM for storage of the application software, and the FEC
module. The FEC module performs de-randomization and forward error correction on
each received MAC cell. The power supply module receives either an AC 110/220 V
50/60 Hz input or a –48 V DC input, and it provides a DC output to power the
chassis.

Demodulator Board
The demodulator boards (DM boards) accept the upstream DQPSK data, which is
demodulated and transmitted through the backplane to the FEC decoder for de-
randomization and error correction. The ARPD 1000 can contain up to 6 DM boards
per chassis where each DM board contains a single RF input. Each DM board allows
three upstream return channels to be demodulated. This allows each ARPD 1000
chassis to demodulate up to 18 upstream channels.
The ARPD 1000 can process signals received within the 5 to 65 MHz return
spectrum. The demodulators on each DM board can be tuned to one of 311
predefined, 192 kHz channels between the 5 to 65 MHz return spectrum. The
center frequencies of the predefined channels range from 5.216 MHz to 64.736 MHz
in steps of 192 kHz [that is, 5.216 MHz + (n)(0.192) where n=0, …, 310]. The 311
predefined channels supported by the ARPD 1000 include the 36 predefined

2
1 ARPD 1000 OVERVIEW

channels supported by the RPD1000/2000; thus, an ARPD 1000 can be used

wherever an RPD 1000/2000 is used.
To support receiving signals across the 5 to 65 MHz return spectrum, each DM
board includes a set of two wide-band input filters:
• A 45 MHz wide filter that supports signals received within the 5 to 50 MHz
return spectrum; and
• A 19 MHz wide filter that supports signals received within the 46 to 65 MHz
return spectrum.
Only one of the filters can be active on a DM Board and each demodulator on the
same DM board must be tuned to a channel within the active filter. Each
demodulator on a DM board can be tuned independently to one of 311 predefined,
192 kHz channels between 5 MHz – 65 MHz while observing the active filter
requirement.
Having access to several DM boards allows you to use the ARPD 1000 in many
ways. One example of this would be the ability to demodulate several upstream
channels from one upstream input. By cascading more than one DM Board together
(discussed later), you can monitor several upstream channels within different filters.
Figure 1-2 — DM Board

Front Panel Hardware

The main hardware indicators are located on the front panel of the ARPD 1000.
Figure 1-3 shows the front panel and its indicators:
Figure 1-3 — ARPD 1000 Front Panel

3
1 ARPD 1000 OVERVIEW

Table 1-1 summarizes the function of each connection.

Table 1-1 — Front Panel Indicators

Key Item Description

A Indicates the status of the ARPD 1000 Chassis.

Solid Green = Power on and no faults

Solid Red = Critical or major alarm has occurred
Solid Yellow = A minor alarm has occurred

B Indicates the status of the DM Boards. Numbers 1-6 indicate the

status of the corresponding DM Board.

Solid Green = DM board installed and operational, no faults, not

receiving data.
Blinking Green = DM board installed and operational, receiving data.
Solid Red = A critical or major alarm has occurred.
Solid Yellow = A minor alarm has occurred.
Blinking Yellow = DM board in pending state.
Off = DM Board not installed.

C Indicates the status of the 10/100 BaseT Ethernet Interface. 1 and 2

indicate the status of the corresponding Ethernet port.

Solid Green = Link up, no data traffic (auto-negotiation link pulse

activity, partners agree on capabilities).
Blinking Green = Link up, with data traffic (both transmit & receive).
Alternating Yellow/Green = Collision detected (if in Half-duplex
mode). Appears as alternating green/yellow during high collisions
Off = No Link/Link Down (auto-negotiation failed, no communication
to partner – no link pulse observed).

D RS-232 Console Port. Used for initial configuration.

4
1 ARPD 1000 OVERVIEW

Back Panel Hardware

The back panel of the ARPD 1000 contains the inputs and outputs of the upstream
demodulators as well as the Ethernet interface and power connector. Figure 1-4
illustrates the back panel of the ARPD 1000 with an AC power connection. Figure 1-5
illustrates the back panel of the ARPD 1000 with a DC power connection.
Figure 1-4 — ARPD 1000 Back Panel, AC version

Figure 1-5 — ARPD 1000 Back Panel, DC version

Table 1-2 summarizes the function of each connection:

Table 1-2 — Rear Panel Connectors

Key Item Description

A The AC input and fuse are in an IEC320 connector that accepts 100-
120 V AC at 50-60 Hz. The fuse is a 2-amp, slow-blow type.

A The DC power input connector accepts inputs from –40 through

–60 V DC.

B Enet Connectors are the RJ-45 Ethernet ports 1 and 2. Enet 1 is

used for all data transfers. Enet 2 is for future expansion. Maximum
data rate is 100 Mbps.

C RF In connectors, one for each DM board, receive a QPSK

modulated signal from an input cable or by cascade from another
demodulator. F-type connector.

5
1 ARPD 1000 OVERVIEW

Key Item Description

D RF Out connectors, one for each DM board, are used only to
cascade demodulators. If the demodulators are not cascaded, the
connector requires a 75 Ohm terminator. F-type connector.

E Grounding lugs. Used to ground the ARPD 1000 to an appropriate

grounding device.

F Two fans are included at the rear of the ARPD 1000.

6
2 INSTALLATION
This section provides instructions for installing the ARPD 1000 into a CATV headend.
To complete the process, you must:
• Mount the ARPD 1000 chassis in the equipment rack.
• Install the DM Boards.
• Connect interface cables.
• Apply power to the unit.
• Check for operation to verify correct installation.

Equipment must be located in a restricted access location and must be

installed by qualified personnel.

Preparation
Before you begin, make sure to check the contents of the ARPD 1000 packaging to
verify that you have received following items:
Item Quantity Description

ARPD 1000 Chassis 1 Cabinet housing the demodulators and

related equipment.

Demodulator Boards Depends on DM Boards not included with chassis. Must

configuration be obtained separately.

Mounting screws with 4 Provided to mount the unit in the equipment

plastic washers rack.

Ground Stud Nuts 2 #10-32 grounding nut with integrated lock-

washer.

AC/DC Power cord 1 Acceptable for use with NEMA style 5-15R
AC/DC receptacles supplying nominal
120 V AC or –48 V DC.

75 Ω termination 6 Provided to terminate unused output ports.

In order to install the ARPD 1000 chassis into the equipment rack, a
Phillips screwdriver is required.

7
2 INSTALLATION

Mounting the ARPD 1000

The ARPD 1000 can be mounted in any standard 19-inch equipment rack. Mount the
ARPD 1000 in any 1 RU (1.75 inches) of open rack space. It is not necessary to
provide any additional spacing in top or underneath the ARPD 1000 chassis for
cooling. If the equipment operates continuously in a closed cabinet, provide forced-
air circulation to ensure maximum equipment life and optimum performance.

Improper grounding may damage the APRD 1000. Refer to National

Electrical Code (NEC) guidelines or local standards for grounding the
ARPD 1000 to the equipment racks and to the building grounding
system.

To mount the ARPD 1000 into the rack:

1. Insert the four screws with plastic washers through the mounting holes in the
front panel and into the mounting holes in the rack, as illustrated in Figure 2-1.
Figure 2-1 — Rack Mounting the ARPD 1000

2. Tighten all screws until unit is secure. Verify that all screws are secure and that
the unit is firmly in place.
3. Attach grounding nut studs to appropriate grounding device.

The rear panel protective earthing connections must be completed in

the final installation by qualified personnel in accordance with local
and/or National wiring rules (for example, Canadian or U.S. National
Electrical Codes).

8
2 INSTALLATION

Installing DM Boards
This section provides instructions on how to install or replace a DM Boards into the
ARPD 1000 chassis. If there are empty DM Board slots in your ARPD 1000 chassis,
you may wish to add additional DM Boards, or, if a DM Board is no longer functional,
a replacement module may be swapped with the non-functional module.
DM Board modules are hot-swappable; power does not need to be disconnected
while installing or removing DM Boards.

Electrostatic Discharge (ESD) can damage the ARPD 1000 DM Board

assemblies. Wear an anti-static wrist strap attached to a chassis ground
to prevent ESD damage.

To install a DM Board:
1. Ensure that you wearing ESD protection.
2. Loosen both fastening lugs on front panel and open the front panel of
ARPD 1000 chassis.
3. If replacing a DM board, remove the board from the desired slot before
continuing the installation.
4. Remove the new DM board from the ESD protective packaging.
5. Align the DM board with the slides on the sides of the DM board slot, as shown
in Figure 2-2.
Figure 2-2 — Installing DM Board Modules

6. Press the board firmly in place to ensure that the board is properly seated. There
should be only minor resistance while installing the board.
7. Tighten the thumbscrew on the front of the DM board to secure it.

9
2 INSTALLATION

When a card is inserted, the front panel LED corresponding to that card will blink
yellow for 2 to 10 seconds. Once the card is successfully programmed and
operational, the LED will turn green. In some cases, the software on the DM board
will need to be upgraded. This could require up to one minute of configuration time.
If the DM board fails to configure, the LED will turn red. It is recommended that you
not remove DM boards while they are being configured.
Repeat these steps until all DM Boards are installed.

Connecting Interface Cables

The following standard cabling is required:
1. Connect the ARPD 1000 Ethernet interface to the Ethernet LAN hub to carry the
output signal to the access control system.
2. Connect the RF coaxial cable, which carries input signals from the settop boxes,
to the ARPD 1000.
Refer to the cabling guidelines provided in Appendix B for details on length
restrictions, connectors, and cable types for each required connection required on
your system.

Connecting Ethernet Cables

For the ARPD 1000 to forward MAC cells to other equipment in the headend, a CAT5
Ethernet cable must be connected from the headend LAN to the Enet1 port located
on the rear panel of the ARPD 1000.

To comply with applicable Electromagnetic Compatibility (EMC)

standards, high-quality shielded twisted pair cable must be used.

Connecting RF Coaxial Cables

Each DM board slot has an RF input port and an RF output port on the rear panel of
the ARPD 1000. Since each DM board can demodulate three channels, a single RF
coaxial cable is connected to each DM board. Figure 2-3 illustrates input and output
connection on an ARPD 1000, using a single DM board, located in slot 1.
Figure 2-3— Typical RF Coaxial Cable Connection

10
2 INSTALLATION

1. Connect the input coaxial cable to the RF IN connector of the first demodulator
board (that is, RF 1).
2. Connect a 75 Ohm terminator to the RF OUT of the first demodulator board.
3. Repeat steps 1 and 2 for each enabled DM board in slots 2 through 6 of the
ARPD 1000.

Cascading DM Boards
Cascading DM boards allow the ARPD 1000 to demodulate data from multiple
frequencies on the same input cable. Since each DM board can only demodulate
frequencies from within one of the two wide-band filters, it may be desirable to
cascade two or more DM boards together in order to accommodate all input data.
To cascade a DM board:
1. Connect the input coaxial cable to the first demodulator board RF IN connector
2. Connect a coaxial cable from the RF OUT connector on the first DM board to the
RF IN connector of the second DM board
3. Repeat this process until all of the desired DM boards are cascaded.
4. Connect a 75 Ohm terminator to the RF OUT of the last DM board in the
cascade.
Note: A maximum of 10 DM boards can be involved in a single cascade.
Figure 2-4 — Cascading DM Board connections

In the above figure, the RF IN A input cable feeds DM boards 1 through 3. The
second input cable, RF IN B, feeds DM boards 4 through 6. A 75 Ohm terminator is
located at the end of each cascade.
DM Board cascading can be implemented without configuring the ARPD EM.
However, the ARPD can monitor the cascade channel assignment and identify
channel reuse if the ARPD EM is configured for cascading. For more information
refer to Section 3, DM Boards.

11
2 INSTALLATION

Supplying AC Power to the ARPD 1000 (Model 535655-001 Only)

For AC units, use only an AC power cord that complies with the product safety
requirements for the site, and the country in which the site is located.
For AC units, connect the AC power cord after all I/O connections are complete. The
power supply automatically senses and adapts to any input from 100 through 240 V
AC, at 50 through 60 Hz.

To prevent electrical shock, do not use the polarized power cord with
an extension cord, receptacle, or other outlet unless all blades can be
fully inserted to prevent blade exposure.

Note: As soon as the power connection has been completed, the ARPD 1000 will
turn on and begin the boot process.

Supplying DC Power to the ARPD 1000 (Model 535655-002 Only)

The DC version of the ARPD 1000 requires a local ~48 V DC SELV power source.
This is the only power source that can be used with the DC version of the ARPD
1000.
Wiring color conventions for the ARPD 1000 power connector are as follows:
Wire Color Function

Green/Yellow Ground

Red Positive

Black Negative

Connect the chassis ground before connecting the positive (+) and negative (–) wires
to the main DC power source. Refer to the power supply service procedure
documentation for proper connection of the coupler wiring to the power supply.
Figure 2-5 — Connecting the DC power source to the ARPD 1000

12
2 INSTALLATION

• The ARPD 1000 unit must be installed and secured in a rack or

cabinet with the input power cabling protected from access by
unintended personnel and the outside environment.
• The DC circuit must have a maximum current carrying capacity
of 3 amps in order to accommodate worst-case voltage input
and module configurations.
• The DC circuit must have a disconnect switch or mechanism
rated minimum 60 V DC / 5 A and must be provided with
overcurrent protection and wiring in accordance with local
codes.
• To avoid electrical shock hazard, disengage input power
switch/mechanism before inserting or removing power cables
from the ARPD 1000.

Ensure that wire polarity is correct, to avoid damage to the internal

power supply.

Note: As soon as the power connection has been completed, the ARPD 1000 will
turn on and begin the boot process.

13
3 SETUP AND CONFIGURATION

Console
The console is used for local administrative access and configuration of the
ARPD 1000 chassis. The console can be accessed directly through the console port,
or remotely, using the secure shell (ssh). Before remotely accessing an ARPD using
ssh, the ARPD must be assigned a valid IP address, which can be configured
through a BOOTP/DHCP server or through the console port.
The console provides the ability to set and change the following parameters:
• Ethernet interfaces
• Clock
• Element Manager Password
• Reboot ARPD
The commands to configure these parameters are discussed in more detail in the
following sections.

Connecting to the Console Port

Through the console port, you can use an ASCII terminal or PC running terminal
emulation software to access the console. To connect a terminal to the console port
on the front of the ARPD 1000 chassis, use a straight-through cable with the serial
connector on your computer.
Configure the terminal emulation software as shown in the table below.
Table 3-1 — Terminal Emulation Settings

Parameter Setting
Baud Rate 9600
Data 8 bit
Parity None
Stop 1 bit
Flow Control None

Once communication has been established, you are prompted for a user name and
password. The username is “motorola”, and the password is also “motorola”. A
successful login will take you to a command prompt: “~#”.

Command Line Interface

There are four main parameters that can be set and changed through the console
port. Each of the Command Line Interface (CLI) commands are described in the
following subsections.

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Ethernet Interfaces
The CLI application for setting and displaying the two Ethernet interfaces is ipa. The
following is a list of ipa syntax commands.
Command Syntax Command Description

ipa [<interface>] Displays Ethernet interface settings.

<interface> is enet1; enet2

ipa <interface> [–a <address>] | [–n <netmask>] Set static IP address for the Ethernet
interface port.
<interface> is enet1; enet2
<address> is the desired IP address in dot
notation.
[<netmask>] (optional) subnet mask in dot
notation.

ipa <interface> <method> Enable DHCP/BOOTP mode for the

Ethernet port.
<interface> is enet1; enet2
<method> is [all | dhcp | bootp]
all – DHCP, then BOOTP if DHCP fails.
dhcp – DHCP only.
bootp – BOOTP only.

ipa <interface> <speed duplex> Sets interface speed and duplex.

<interface> is enet1; enet2
<speed duplex> is [auto | 100 full | 100 half |
10 full | 10 half]
auto – Auto-Negotiate
100 full – 100 MBps Full Duplex
100 half – 100 MBps Half Duplex
10 full – 10 MBps Full Duplex
10 half – 10 MBps Half Duplex

ipa gw [<gatewayip> | 0] Sets the static Gateway IP:

• <gatewayip> is the static gateway
ip address for enet1
• 0 is to remove the static gateway ip
address
Note: The static Gateway IP is only used on
enet1.

The clock Application

The CLI application named clock is used to set the internal clock of the ARPD 1000.
Clock is used to:

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3 SETUP AND CONFIGURATION

• Set the time/date on the ARPD 1000.

• Set the addresses of the two time references to be used to synchronize the
clock.
• Set the interval between synchronization.
• Update the clock immediately using the time reference servers configured.
The following CLI syntax commands are used in conjunction with the clock
command.
Command Syntax Command Description

clock display Display the current configuration

clock set <time> <date> <month> <year> Set the system clock time and date.
<time> is the current time in hh:mm:ss (24 hr
clock), with hours from 00-23, minutes from 00-
59, seconds from 00-59.
<date> is the current day, in the range 1-31.
<month> is the current month, in the range
January-December.
<year> is the current year, in the range 2003-
2099.

clock update Performs a synchronization of the system clock

with a time reference server.

clock ip <server_ip1> [<server_ip2] Set the IP address of the time reference server.
<server_ip1> is the name of the first time
reference server.
[<server_ip2>] is the name of the alternate time
reference server.

clock internal <internal_time> Set the time between clock synchronizations. If

set to 0 synchronization Is disabled.

<interval_time> is the time in seconds between

120-86400

Setting the Password

The Element Manager password is encrypted and stored within the ARPD 1000.
Therefore, it is not possible to view the currently configured password. It is,
however, possible to reset the password using the CLI application named password.
The syntax for this command is shown below.
Command Syntax Command Description

password reset Resets the EM password to “motorola”

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Resetting the ARPD 1000

After changes have been made to the ARPD 1000 using the console, a reset may be
required for the changes to take effect; the command syntax ipa <interface>
<method> requires a reset to occur for the changes to take place. The CLI
application reset is used in the console to reset/reboot the ARPD 1000.
Retrieving the ARPD Configuration File
The ARPD configuration file contains the full ARPD configuration, and can be
retrieved for future reference. To download the configuration of an ARPD 1000
chassis:
1. Enter the IP address of the ARPD 1000 (containing the configuration file to be
copied) into a web browser. A web page is displayed; this web page allows you
to download the Element Manager and the configuration file.
2. Download and save the configuration file by clicking on the ARPD 1000 Configuration
File link.

Element Manager
The ARPD Element Manager GUI contains an easy-to-use graphical representation
of the ARPD 1000 hardware. The hardware components that are covered in this
section include: Chassis, DM board, Demods, and Fast Ethernet ports. Each
component of the Hardware Panel has its own set of tabs on the configuration
interface, providing an individual interface for the configuration of each hardware
sub-component.
The Element Manager window contains four basic areas: the Menu Bar, the
Hardware Panel, Tabs, and the Property Panel (Figure 3-1).

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3 SETUP AND CONFIGURATION

Figure 3-1 — Element Manager Window

As an alternate to the graphical configuration interface, the Menu bar also provides
access the Element Manager configuration screens. It also allows you to connect
and disconnect from various ARPD 1000 chassis.
The Hardware Panel (see Figure 3-1) is a graphical representation of the inputs and
outputs on the rear of the ARPD 1000 chassis, and the status LEDs on the front of
the chassis. This panel indicates if an alarm is present (red), if a DM Board is present
(green or yellow), and indicates which inputs/outputs are present/enabled
(yellow/blank). The Hardware Panel is the primary tool for navigating through the
configuration of the ARPD 1000 chassis.
The tabs on this display show subgroups of configuration information relating to the
hardware selected from the Hardware Panel. For example, clicking on the Hardware
Panel displays a set of tabs with information pertaining to that chassis.
The Property Panel is the location where the actual information is accessed and
configured. Each tab has its own data set which is displayed in this panel. Here, the
ARPD 1000 chassis can be configured and changes can be made.

Getting Started
Download the Element Manager (EM) executable by opening up a web browser and
entering the IP address of the ARPD 1000. This opens a web page where you can
download the Element Manager executable and the ARPD 1000 configuration file.
Click on the EM link to download and save the EM.exe file.
Open the EM and double click on the EM executable; the Connect Dialog screen is
displayed (Figure 3-2).
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3 SETUP AND CONFIGURATION

Figure 3-2 — Connect Dialog Screen

Enter the IP address of the ARPD 1000 chassis you would like to connect to, along
with the appropriate Admin Password. The default password is Motorola.
A non-accessible ARPD 1000 chassis generates the error message shown in Figure
3-3.

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3 SETUP AND CONFIGURATION

Figure 3-3 — Connect Dialog – Connection Error

The Connect Dialog screen can be accessed at any time by selecting Connect from
the File menu. This allows the user to connect to a different ARPD 1000 chassis
without having to restart the Element Manager. Select File > Log Out to disconnect
from the current ARPD 1000 chassis. To login again, select File > Connect.
Additional Menu selections include:
• Click on System > Revisions > Reboot. to reboot.
• Click on Help > About to view additional information.

Chassis
Network Management
After you first log into the ARPD 1000, you are taken to the chassis’ Network tab in
the Property Panel (Figure 3-4). The Network tab displays the ARPD 1000’s current
network parameters.

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3 SETUP AND CONFIGURATION

Figure 3-4 — Network Management View

Table 3-2 — Network Parameters

Parameter Access Description

Interface View-only Name of Ethernet port.
Status View-only Status of Ethernet port (up, down, or testing).
Mode Configurable IP Configuration Mode (DHCPthenBOOTP,DHCP or BOOTP).
IP address View-only Assigned address of Ethernet port. Configurable through the
console port or through the BOOTP/DHCP server.
Subnet View-only IP address of Subnet Mask. Configurable through the console
port or through the BOOTP/DHCP server.
Default Gateway View-only Static gateway used by enet1. Configurable through the
console port, or through the BOOTP/DHCP server.
MAC Address View-only Physical Address of Ethernet port.
Current Speed Configurable Configured duplex/speed setting (Auto, 100-full, 100-half, 10-
Setting full, 10-half).
Current Speed View-only Negotiated bitrate of I/O data (Mb/sec) and duplex value. Bit
rate negotiated to either 10 or 100 Mbps; duplex is either half
or full.

There are two sets of network parameters in this panel:

• Fast Ethernet port 1 (E1) parameters
• Fast Ethernet port 2 (E2) parameters

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3 SETUP AND CONFIGURATION

You can return to this screen at any time by clicking on the Chassis or the Ethernet
ports in the Hardware Panel. The menu bar at the top of the Element Manager
window can also be used to view the Network Configuration Parameters. Select
System > Configuration > Network to view this screen.
The duplex/speed setting of the ARPD 1000 must match the setting used by its link
partner (for example, a switch). The default and recommended setting is Auto (auto-
negotiation); however, auto-negotiation is only guaranteed to operate properly when
the ARPD 1000 and the link partner settings match. When only one side of the link
is set to auto-negotiation, the duplex setting may not negotiate properly; this duplex
mismatch could result in performance issues or dropped packets. When auto-
negotiate cannot be used by both the ARPD 1000 and its link partner, both should be
configured to the same value.
RPD Configuration Parameters
The RPD tab displays the RPD Configuration Parameters for the RPD in the Property
Panel (Figure 3-5). In this panel, you can change the Demod frame assignment
(Vertical or Horizontal), select the protocol version, and select the number of virtual
RPDs. Each enabled Demod frame (or Virtual RPD) has a Destination IP Address,
Destination UDP port, and ARPD Frame ID associated with it.
Figure 3-5 — RPD Configuration Parameter View

A Demod frame, or Virtual RPD, is a group of up to 6 demodulator channels grouped

together so that devices such as the RADD 6000 or NC 1500 can treat each frame
as a separate (or Virtual) RPD.
Demod assignment is the way that Demods are grouped together between DM
boards. Horizontal assignment groups a horizontal row of demodulators across all
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.DM boards in to one message. Cable plants that use more than one demodulator
per upstream plant can use this assignment pattern to reduce OAM&P traffic by
allowing the polling channels to be sent directly to the RADD 6000 and the
interactive channels to be sent to the NC 1500. Vertical assignment groups
demodulators on a DM board. For a more detailed discussion of Vertical assignment,
see Appendix C: Demodulator Assignment. The NC 1500 must be the destination
of all messages when using Vertical assignment.
The graphics on the side of the property panel change and are highlighted based on
the number of Virtual RPDs selected, and on Demod assignment.
For more information on Vertical and Horizontal Demod assignment, please refer to
Appendix C.
Table 3-3 — RPD Configuration Parameters

Parameter Description
RPD Protocol Version Version 1 is used to generate legacy RPD
frames.
Version 2 is only compatible with NC 1500
1.8.x or greater
When forwarding frames to a RADD 6000 or an
NC 1500 with older software, Version 1 must
be used.

Virtual RPDs Number of Virtual RPDs supported by the

ARPD 1000 chassis. For each virtual RPD, the
ARPD 1000 builds a legacy RPD frame.

Demod Assignment Vertical or Horizontal method for assigning

demodulator channels to legacy RPD frames.
(See Appendix C for more detailed
information.)

Destination IP Address IP address to which the RPD frame for each

configured Virtual RPD is to be sent.

Destination UDP Port UPD port to which the RPD frame for each
configured virtual RPD is to be sent. The
combination of Destination IP address and
Destination UDP port should be unique.

ARPD Frame ID User-configurable IP address used to tag

legacy RPD frames. Used by the RADD to
determine where a legacy RPD frame
originated.

All of the parameters in Table 3-3 are configurable in the Property Panel. To enter or
change a value, click on the value to be changed and enter the new value. If the
entered value is invalid, you are notified and the value returns to the last known
working value. These values can be changed regardless of whether or not all frames
are enabled. The menu bar at the top of the Element Manager window can also be
used to view the RPD Configuration Parameters. Select System > Configuration > RPD to
view the RPD Configuration Parameters screen.

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The ARPD only builds and forwards frames when the Destination IP Address and
Destination UDP Port Number are non-zero. When using RPD Protocol Version 1,
the ARPD Frame ID must also be non-zero.
Trap Receivers for the ARPD 1000
The NMS tab displays the Trap Receivers for in the Property Panel (Figure 3-6). The
Property Panel displays the IP addresses to which Traps and Alarms are sent, should
Trap conditions occur. To enter an IP address:
1. Click on the default IP address (0.0.0.0).
2. Enter a new destination IP address.
3. Press Enter to save the new address.
A notification is displayed if an invalid IP address is entered. Up to four different IP
addresses can be entered at once. Each IP address can be enabled or disabled by
using the corresponding check box. The menu bar at the top of the Element Manager
window can also be used to view the SMNP Receiver Configuration Parameters.
Select System > Configuration > NMS to view this screen.
Figure 3-6 — NMS Management View

Re-Settable Stats for all Demods

In the Property Panel, the Re-Settable Stats tab displays the re-settable statistics for
each Demod on all of the DM boards (Figure 3-7). These parameters automatically
update themselves approximately every 5 seconds, to give a near-live representation
of the data flow through each DM Board. Right-click on any demodulator to access
reset options. Reset options are used to reset the selected Demod, reset the DM
board which contains the selected demodulator, or reset all DM boards. Select
System > Configuration > Re-settable Stats to view the Re-Settable Stats tab.

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Figure 3-7 — Re-Settable Stats View

Table 3-4 — Re-Settable Stats Parameters

Parameter Description

Perfect Cells Data cells not requiring correction.

Corrected Cells Data cells requiring correction.

Uncorrected Cells Data cells that cannot be corrected.

Total Cells Total number of cells that have passed through

that Demod.

Power Level Current input power level to Demod.

Max. Power Level Maximum power level seen at input of Demod.

Min. Power Level Minimum power level seen at input of Demod.

Average Bg Noise Average Background noise at Demod.

Max. Bg Noise Maximum Background noise at Demod.

Min. Bg Noise Minimum Background noise at Demod.

Low Level Rejected The number of cells rejected due to channel

power being below the low level threshold.

Stored Stats for all Demods

The Stored Stats tab displays an average of the Statistics for each Demod on every
DM Board in the Property Panel (Figure 3-8). This is a sliding average over a 15
minute time period. This tab shows the average values for the previous 15 minutes.
These statistics cannot be reset.

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Figure 3-8 — Stored Stats View

Table 3-5 — Stored Stats Parameters

Parameter Description

Perfect Cells/sec Data cells/second not requiring correction.

Correctable Cells/sec Data cells/second requiring correction.

Uncorrectable Cells/sec Data cells/second that cannot be corrected.

Peak Cells / sec Peak number of cells that have passed through that
Demod/second. This value is held and does not integrate
down over time.

Total Cells/sec Total number of cells that have passed through that
Demod/second.

Average Power Level Current input power level to Demod (dBmV).

Max. Power Level Maximum power level seen at input of Demod (dBmV).

Min. Power Level Minimum power level seen at input of Demod (dBmV).

Average Bg Noise Average Background noise at Demod (dBmV).

Max. Bg Noise Maximum Background noise at Demod (dBmV).

Min. Bg Noise Minimum Background noise at Demod (dBmV).

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ARPD 1000 Alarms

The Alarms tab displays all Alarms for the ARPD 1000 in the Property Panel (Figure
3-9). To access the Alarms tab, select System > Alarms from the menu bar.
The parameters included on the Alarms tab indicate the Severity of the alarm, which
Physical Entity (DM Board/Demod) caused the alarm, and a brief Description of the
alarm condition.
Figure 3-9 — ARPD 1000 Traps & Alarms View

An alarm condition remains active on the Alarm tab until it has been resolved.

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ARPD 1000 Hardware, Firmware, and Software Revisions

The Revisions tab displays the current hardware, firmware, and software revisions
on the ARPD 1000 in the Property Panel (Figure 3-10). There are no configurable
parameters on this tab.
Figure 3-10 — ARPD Revisions View

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DM Boards
DM Board Configuration
The Configuration tab is used to perform I/O configuration for a specified DM board;
(DM Board 1 through DM Board 6). This I/O configuration data is displayed in the
Property Panel (Figure 3-11). Additionally, each DM Board contains three Demods,
that can be configured independently.
When the Configuration tab is selected, two sets of parameters are displayed in the
Property Panel:
• DM Board parameters, described in Table 3-6.
• Demod parameters, described in Table 3-7.
You can return to this view at any time by clicking on the yellow DM Board slot button
on the Hardware Panel, or by selecting DM Boards > DMx > Configuration from the menu
bar.
Figure 3-11 — DM Board Configuration View

To set the Low Level Threshold, click on the value and enter a numeric value
between –16 and 15.5, then press Enter. (Note that the Low Level Threshold is
measured in dBmV.) Entering any number outside of this range results in an error
message, and the parameter reverts to the last saved value.

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Table 3-6 — DM Board Parameters

Parameter Description

Board ID DM board identification number, a value from 1 through 6

Status Indicates if a DM board is installed

RF Input State Enable/disable RF input

Spectrum Inversion Enable/disable spectrum inversion

Suppress Errored Packets Enable/disable erroneous packet suppression

Low Level Threshold Set input threshold limit (–16 to15.5 dBmV)

Cascaded State Enable/disable data cascading

Cascaded To Specify the DM board to which the cascading data is to be sent

All three demodulators can be enabled or disabled by setting the RF Input State.
Spectrum Inversion allows the ARPD 1000 to operate in cable plants that contain a
device that inverts the DQPSK signals from the STBs. Suppress Erroneous Packets
prevents transmission of corrupted messages to the destination device.
The Low Level Threshold establishes the DQPSK power level at which the
ARPD 1000 will reject messages. Any DQPSK signal that is below this level will not
be demodulated. Click on this field and enter a numeric value between –16.0 and
+15.5 in increments of 0.5; this parameter is measured in dB. Any number outside
this range results in an error message, and the parameter reverts to the last saved
value.
Cascading allows the ARPD 1000 to monitor coupled DM Boards. The demodulators
within a DM board must be configured with unique channels. This policy is extended
to the coupled DM Board when cascading is enabled; therefore all demodulators
within the cascaded chain must be configured with unique channels. This is a logical
assignment that should reflect the physical configuration. To enable cascading:
1. Select Enable from the parameter list for the Cascaded State parameter.
2. In the Cascaded To parameter, specify the next DM Board in the cascade chain.
The Hardware Panel reflects the cascade policy with arrows and numbers above or
below the port indicators, as illustrated in Figure 3-12, indicating which boards are in
the cascade chain.
Figure 3-12 — DM Board Configuration View

For example, if the Cascaded State of DM Board 1 is enabled and it is Cascaded To

DM Board 2, the Hardware Panel shows:
• under port 1, pointing out of port 1, a downward arrow which points to the
number 2, and
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• above port 2, the number 1 above a downward arrow, pointing into port 2, etc.
Note: For instructions on how to physically cascade DM Boards, refer to Cascading
DM Boards in Section 2. The physical connections of each DM Board and their
configuration in the EM must match in order for cascading to work properly.
Table 3-7 — Demod Parameters

Parameter Description
Demod ID Demod Identifier (1, 2, or 3)
Demod Frequency Center Frequency of Demod (192 kHz channels)
Mode Data Only/Data + Noise/Noise Only/Off
Storage Enable/Disable Storing Statistics

The Demod Frequency is the carrier frequency of the Demod channel (center
frequency). To set the Demod Frequency, click on the drop down list and select the
center frequency of the Demod. There are 311 possible channels to choose from,
ranging from 5,216 kHz to 64,736 kHz.
As stated earlier, the DM Board contains two filters. All active demodulators within a
DM Board must have channels within the active filter. The filter selected is based on
the first channel activated. The ARPD 1000 displays an error message if a channel
assignment conflict occurs.
Re-Settable Stats for Demods for a DM Board
The Re-Settable Stats tab displays, in the Property Panel, the re-settable statistics for
each Demod on a specified DM Board (see Figure 3-13). These parameters are
automatically updated approximately every five seconds, to give a near-live
representation of the data flow through each demodulator.
Individual demodulator statistics can be reset, or the entire set of DM Board
statistics can be reset. Right-clicking on a demodulator parameter provides the
option to reset that demodulator or the DM Board.

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Figure 3-13 — Re-Settable Stats View for Demods on a DM Board

Table 3-8 — Parameters for Re-Settable Stats for Demods on a DM Board

Parameter Description

Perfect Cells Data cells/second not requiring correction.

Corrected Cells Data cells/second that were corrected.

Uncorrected Cells Data cells/second that were not correctable.

Total Cells Total number of cells/second that have passed through that Demod.

Power Level The current channel power level (dBmV).

Max. Power Level Maximum channel power level (dBmV).

Min. Power Level Minimum channel power level (dBmV).

Last Bg Noise Background noise of this channel (dBmV).

Max. Bg Noise Maximum Background noise of this channel (dBmV).

Min. Bg Noise Minimum Background noise of this channel (dBmV).

Low Level Rejected The number of cells rejected due to channel power being below the
low level threshold.

To view the Re-Settable Stats tab at any time, select DM Boards > DMx > DModStats from
the menu bar (where x represents the ID number of the specified DM Board).

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Stored Stats for Demods for a DM Board

The Stored Stats tab displays, in the Property Panel, an average of the Statistics for
each Demod on a specified DM Board (see Figure 3-14). This is a sliding average over
a 15 minute time period. These statistics cannot be reset.
Figure 3-14 — Stored Stats View for Demods on a DM Board

Table 3-9 — Parameters for Stored Stats for Demods on a DM Board

Parameter Description
Avg Perfect Cells/sec Data cells / sec not requiring correction.
Avg Corrected Cells/sec Data cells / sec requiring correction.
Avg Uncorrectable Data cells / sec that cannot be corrected.
Cells/sec
Avg Cells/sec Total Avg number of cells / second that have
passed through that Demod.
Peak Cells/sec Highest average cell count / second.
Power Level Current input power level to Demod (dBmV).
Max. Power Level Maximum power level seen at input of Demod
(dBmV).
Min. Power Level Minimum power level seen at input of Demod
(dBmV).
Average Bg Noise Average Bg noise at Demod (dBmV).
Max. Bg Noise Maximum Bg noise at Demod (dBmV).
Min. Bg Noise Minimum Bg noise at Demod (dBmV).

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Trap Thresholds
The Trap Thresholds tab displays, in the Property Panel, the values of the thresholds
for Trap, Event and Alarm conditions (see Figure 3-15). Descriptions of the Trap
parameters are provided in Table 3-10. To change Trap threshold parameters:
1. Select the value of the parameter.
2. Enter the new value
3. Press Enter.
An error message is displayed when a value is entered which is outside of the
parameter range. The parameter reverts to the last saved value.
Figure 3-15 — Trap Threshold View for a Specified DM Board

Table 3-10 — Trap Threshold Parameters for a Specified Demod Board

Parameter Description
Minimum Power Level Sets the value at which an Alarm will be triggered should
the value be exceeded (dBmV).
Maximum Power Level Sets the value at which an Alarm will be triggered should
the value be exceeded (dBmV).
Avg. Corrected Cells/sec Sets the maximum average value of corrected cells/sec
that will trigger an alarm.
Avg. Uncorrectable Cells/sec Sets the maximum average value of Uncorrectable cells
that will trigger an alarm.
Avg. Total Cells/sec Sets the maximum average value of the total cells/sec
that will trigger an alarm.
Avg. Background Noise Sets the value at which an alarm will be triggered should
the value be exceeded (dBmV).

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The Trap Thresholds tab can be viewed at any time by selecting DM Boards > DMx > Trap
Thresholds from the menu bar.
ARPD 1000 Traps and Alarms for a DM Board
The Alarms tab displays, in the Property Panel, a list of the Traps and Alarms that are
currently active for the specified DM Board (for an example, see Figure 3-16). The
Alarms tab provides information on the alarm Severity, alarm Name, alarm Type, the
Physical Entity (chassis, Demod, etc.) which caused the alarm, and a brief
Description of the alarm condition.
Figure 3-16 — Alarm View for a DM Board

An alarm condition remains in the Alarm tab until the alarm condition has been
resolved. To navigate to this tab, select DMx (where x represents the ID number of
the specified DM Board) in the Hardware Panel, or select DM Boards > DMx > Trap
Thresholds from the menu bar.

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Changing Passwords
Select File > Change Password to access the Change Password screen (Figure 3-17). To
change the password, in the appropriate entry boxes:
1. Enter the Current (existing) password.
2. Enter the new password.
3. Enter the new password again.
4. Once the information has been entered, click Set to set the new password.
Figure 3-17 — Change Password Screen

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Firmware Upgrades
All ARPD 1000 chassis and DM board firmware upgrades are done automatically,
using the BOOTP and TFTP protocols over enet1 network connections. The
ARPD 1000 boot mode must be set to BOOTP, DHCP, or All. The ARPD 1000 looks
for configuration and code files during a boot cycle. In order for the upgrade
procedure to work, other network elements must be configured so that the proper
files are present on the BOOTP/DHCP server (for example, the Smartstream Device
Manager).
A BOOTP server is assumed; however, a DHCP server can be used as well. Upon a
power cycle or reset, the ARPD 1000 requests an IP address and updated
configuration information by sending a BOOTP request to the BOOTP/DHCP server
using a MAC broadcast address. The ARPD 1000 then waits for a response. If no
response is received within the timeout period, the ARPD 1000 initializes itself using
the self-boot option in conjunction with the configuration and code files stored in its
NVRAM. If the ARPD 1000 receives a response from the BOOTP server, it uses the
information in this response to download the file-of-files (FOF) from the TFTP server.
The FOF is downloaded unconditionally.
The names of the code and configuration files are stored in the file-of-files (FOF).
This FOF is unconditionally downloaded during the BOOTP process. The ARPD
compares the list of names in the FOF with the list of the files its NVRAM. Any file
names that differ are updated from the TFTP server.
Figure 3-18 — Local BOOTP

The sequence of steps for the BOOTP process within a local network is as follows:
• The ARPD 1000 sends a BOOTP request as a MAC broadcast which includes its
MAC address.

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• The BOOTP server builds a BOOTP reply and broadcasts the reply to the client.
The BOOTP reply includes the client’s IP address and the IP address of the TFTP
server where the configuration and code files can be found, and the location and
name of the FOF.
• The ARPD 1000 recognizes and receives the BOOTP reply by observing the MAC
address inside the protocol.
• The ARPD 1000 downloads and processes the FOF for the configuration file
from the TFTP server identified in the BOOTP reply.

Element Manager Alarms

This section provides information to help you to isolate and resolve error conditions
reported by the ARPD 1000 through the Element Manager GUI. A list of the SNMP
traps and alarms is provided below, along with possible causes and solutions.
Table 3-11 — SNMP Traps & Alarms

Alarm Condition Event or Alarm Possible Cause Corrective Action

(Severity Level)

DM Board not seated Make sure the DM Board is

Cannot communicate correctly. completely inserted into the
Alarm: critial
with DM Board DM Board slot.

DM Board not seated Make sure the DM Board is

correctly. completely inserted into the
DM Board Fault Alarm: critial DM Board slot.
DM Board malfunctioning Return ARPD 1000 for
diagnostics and repairs.
Any internal HW fault, such Return ARPD 1000 for
as temperature, voltage diagnostics and repairs.
ARPD Chassis Fault Alarm: critial level, fan failure, CPU clock Check the operation of fans
rate, etc. at rear of chassis.

User has changed the This is an event; no

ARPD configuration parameters of the hardware corrective action required.
Event: minor
change (DM Boards/ Ethernet Ports)

ARPD configuration panel Check the IP addresses in

contains an unreachable IP the ARPD configuration
ARPD failure (cannot address. panel and correct those that
obtain destination Alarm: critial are in error.
MAC address)
The destination device is Diagnose the destination
not on the network device.

User has removed a DM This is an event; no

Board corrective action is required.
DM Board removed Event: minor

39
3 SETUP AND CONFIGURATION

User has inserted a DM This is an event; no

DM Board inserted Event: minor Board corrective action is required.

No data present on the Ensure data is present on

input cable. the cable.
Loss of RF input
Alarm: major Input cable unplugged. Check to see if cable is
(enabled inputs only)
plugged in.

Avgerage power level is out Adjust power level of input

Average power level of the set power range signal.
Alarm: major
out of range

Number of corrected Contact system network

Average number of cells/sec has exceeded the Technician.
corrected cells over 1 user defined threshold.
Alarm: major
second exceeded
threshold

Number of uncorrected Contact system network

Average number of cells/sec has exceeded the Technician.
uncorrectable cells user defined threshold.
Alarm: major
over 1 second
exceeded threshold

Average number of Total number of cells/sec Contact system network

total cells/second has exceeded the user Technician.
Alarm: minor defined threshold.
over 1 second
exceeded threshold

The level of background Contact system network

Average background noise corrected cells.sec Technician.
noise over 1 second Alarm: major has exceeded the user
exceeded threshold defined threshold.

40
APPENDIX A: ARPD 1000 RF SPECIFICATIONS
Parameter ARPD 1000 Value
Modulation DQPSK
Demod Channel BW 192 kHz
Input Frequency Range 5 to 65 MHz
Demod Center Frequencies 5.216 to 64.736 MHz in 192 kHz steps
Number of Valid Channels 311
Dynamic Range 20 dB (0 dBmV ± 10 dB)
Maximum Input Level for no Damage 60 dBmV
Interference and Noise C/(N+1) < 16.5 dB when input level within ± 6 dB of nominal
Symbol Rate 128 ksps ± 100 ppm
Channel Bit Rate 256 kbps ± 100 ppm
Information Bit Rate 223 kbps ± 100 ppm
Transmitter Carrier Freq. Accuracy ± 4400 Hz over 5-65 MHz
Input Impedence (Nominal) 75 Ohms
Loop Through Insertion Loss < 0.3 dB
Return Loss (per RF input) > 16.5 dB of return loss (5-65 MHz)

41
APPENDIX B: ARPD 1000 GENERAL SPECIFICATIONS
Parameter Value
Upstream RF Input
Data Rate 256 kbps
Frequency 5 to 65 MHz
Impedence 75 Ohms
Connector F-Type
Ethernet
Data Rate 10/100 Mbps
Messaging TCP, SNMP, UDP
Interface IEEE 802.3
Connector RJ-45 (10/100BaseT)
Impedence 120 Ohms
Cable Type Cat 5
Cable Length 100 meters
Physical
Dimensions 19" (W) x 1.75" (H) x 13" (D)
Weight 13.5 lbs (1– ARPD and 6 – DM boards)
Mounting 19" Rack Mount
Electrical
Input Voltage 110-220 V AC @ 50-60 Hz OR –48 V DC (40 to –60
V DC)
AC Line Current <0.8 A @ 120 V AC
Fuse 2 A, slow blow
Power 90 W max
Environmental
Operating Temperature 0 to 50 degrees Celcius
Operating Humidity 5 to 90 %
Storage Temperature –40 to 70 degrees Celcius
Cooling Forced Convection

43
APPENDIX C: DEMODULATOR ASSIGNMENT
When an ARPD 1000 is configured to use Protocol Version 1, the ARPD 1000
operates in a legacy RPD mode, and allows you to define the number of virtual
RPDs. The number of virtual RPDs is directly proportional to the number of
demodulator channels being used, per DM board. In other words:
• an ARPD 1000 configured for one virtual RPD has one available demodulator
channel per DM board,
• an ARPD configured for two virtual RPDs has two available demodulator
channels per DM board, and
• an ARPD configured for three virtual RPDs has three available demodulator
channels per DM board.
In legacy RPD mode, the ARPD also provides the ability to assign demodulator
channels to each virtual RPD in one of two ways: a horizontal assignment or a
vertical assignment.
In a horizontal assignment, the ARPD groups demodulator channels by ID, where all
demodulator channels with the same channel ID are assigned to the same virtual
RPD.
In a vertical assignment, the ARPD groups demodulator channels by DM board,
where all demodulator channels of the same DM board are assigned to the same
virtual RPD.
The parameters for configuring the ARPD for a legacy mode are shown in Figure C-1.

45
APPENDIX C: DEMODULATOR ASSIGNMENT

Figure C-1 — ARPD EM Screen to Configure Legacy Mode

Horizontal Assignment
With a horizontal assignment, demodulator channels are grouped by ID, where all
demodulator channels of the same channel ID are assigned to the same virtual RPD.
Configuring an ARPD using the horizontal assignment is analogous to deploying a
series of RPDs where each RF port on a polling RPD is daisy-chained to one or more
interactive RPDs. Based on the number of virtual RPDs configured, the ARPD
assigns demodulator channels to a virtual RPD as shown in Figure C-2.

46
APPENDIX C: DEMODULATOR ASSIGNMENT

Figure C-2 — ARPD Horizontal Demod Assignments

Configuring an ARPD 1000 with horizontal assignment is useful when the polling
demodulator channels within the ARPD use the same channel ID on each DM board;
thus, the polling demodulator channels are all located on the same virtual RPD. Only
the virtual RPD containing the polling demodulator channels needs to be configured
on the RADD 6000. When a specific channel on all DM boards is used exclusively
for polling, the horizontal setting allows an operator to define a virtual RPD that is
used exclusively for polling such that the destination of the virtual RPD can be the
RADD 6000. Since this virtual RPD only contains polling demodulator channels, and
data for this virtual RPD is sent directly to the RADD 6000, the virtual RPD only
needs to be added to the DAC 6000. Any other virtual RPD would be used
exclusively for interactive traffic; thus, the destination of those virtual RPDs would be
the NC 1500, and they would only be added to the NC 1500.
The following table shows the analogous RPD configuration, and highlights the
configuration for the ARPD 1000, DAC 6000, and NC 1500 when an operator uses
the horizontal assignment setting with a varying number of active demodulator
channels. The use cases in the table assume that when multiple demodulator
channels are used, that one demodulator channel (that is, Demod ID 1) is used for
polling traffic and any remaining demodulator channel is used for interactive traffic.

47
APPENDIX C: DEMODULATOR ASSIGNMENT

Table C-1 — ARPD Horizontal Deployment Use Cases

ARPD 1000 Deployment Use Analogous RPD Configuration Overview

Case Deployment

Three Demods — Three RPDs — ARPD Configuration

Horizontal Assignment Daisy-chained Across
• Configure Legacy mode; that
RPDs
is, Protocol Version 1
• Configure 3 Virtual RPDs
• Configure Horizontal Demod
Assignment
• Configure a RADD 6000 as the
destination for Virtual RPD #1
• Configure an NC 1500 as the
destination for Virtual RPD #2
• Configure an NC 1500 as the
destination for Virtual RPD #3
• Configure demodulator
channels 1 - 3 on each DM
board
DAC 6000 Configuration
• Define one RPD that
corresponds to Virtual RPD #1
setting the IP address to the
Virtual RPD’s assigned ARPD
Frame ID
NC 1500 Configuration
• Define two RPDs that
corresponds to Virtual RPDs #2
and #3 where RPD is defined
using the ARPD IP address and
a unique UDP ports

Two Demods — Two RPDs — Daisy- ARPD Configuration

Horizontal Assignment chained across RPDs
• Configure Legacy mode, that
is, Protocol Version 1
• Configure two Virtual RPDs
• Configure Horizontal Demod
Assignment
• Configure a RADD 6000 as the
destination for Virtual RPD #1
• Configure an NC 1500 as the
destination for Virtual RPD #2
• Configure demodulator
channels 1 and 2 on each DM
board
DAC 6000 Configuration
• Define one RPD that
corresponds to Virtual RPD #1,
setting the IP address to the
assigned ARPD Frame ID of
the Virtual RPD

48
APPENDIX C: DEMODULATOR ASSIGNMENT

ARPD 1000 Deployment Use Analogous RPD Configuration Overview

Case Deployment

NC 1500 Configuration
• Define one RPD that
corresponds to Virtual RPD #2,
using the ARPD IP address and
a unique UDP port
One Demod — One RPD — ARPD Configuration
Horizontal Assignment No Daisy-chaining
• Configure Legacy mode, that
(same as Vertical)
is, Protocol Version 1
• Configure one Virtual RPD
• Configure Horizontal Demod
Assignment
• Configure a RADD 6000 as
destination for Virtual RPD #1
if the demodulator channel is
used only for polling;
otherwise, configure an
NC 1500 as the destination for
Virtual RPD #1
• Configure demodulator
channel 1 on each DM board
DAC 6000 Configuration
• If the demodulator channel is
used for polling, define one
RPD that corresponds to
Virtual RPD #1, setting the IP
address to the assigned ARPD
Frame ID of the Virtual RPD
NC 1500 Configuration
• If the demodulator channel is
used for interactive traffic,
define one RPD that
corresponds to Virtual RPD #1,
Note: One channel per DM board may be used when an
using the ARPD IP address and
ARPD is used to replace a single RPD. It may also be used
a unique UDP port
where there is no interactive traffic or a single demodulator
channel is used for combined polling and interactive traffic.

Configuring the ARPD to use a horizontal assignment provides the ability to limit the
number of RPD devices that are added to the NC 1500 and DAC 6000 when the
demodulator channels are used exclusively for either polling data or interactive data.
The NC 1500 needs to be configured with only those virtual RPDs containing one or
more demodulator channels designated to carry interactive data; likewise, the
DAC 6000 should be configured with only those virtual RPDs containing one or more
demodulator channels designated to carry polling data. When demodulator channels
with the same Demod ID are used in the same way, an operator can limit which
virtual RPDs are configured on the DAC 6000 and possibly on the NC 1500.

49
APPENDIX C: DEMODULATOR ASSIGNMENT

Vertical Assignment
With a vertical assignment, demodulator channels are grouped by DM board, where
all demodulator channels of the same DM board are assigned to the same virtual
RPD; consequently, a virtual RPD typically contains a mixture both polling and
interactive demodulator channels. Since an RPD supports up to six demodulator
channels, the demodulator channels from multiple DM boards are grouped within
the same virtual RPD, where the configured number of virtual RPDs dictates the
number of DM boards per virtual RPD as shown in Figure C-3.
Figure C-3 — ARPD Vertical Demod Assignments

Configuring an ARPD 1000 using the vertical assignment is analogous to deploying a

series of RPDs, where multiple channels within an RPD are daisy-chained together
to form an upstream path.
The Table C-2 highlights how to configure the ARPD 1000, NC 1500, and RADD 6000
when an operator uses the vertical assignment setting. The use cases in the table
assume that when multiple demodulator channels are used, that one demodulator
channel (that is, Demod ID 1) is used for polling traffic, and the other demodulator
channels are used for interactive traffic.
Table C-2 — ARPD Vertical Deployment Use Cases

ARPD 1000 Deployment Use Analogous RPD Configuration Overview

Case Deployment

Three Demods — Three RPDs — ARPD Configuration

Vertical Assignment Daisy-chained within an RPD
• Configure Legacy mode;
that is, Protocol Version 1
• Configure three Virtual
RPDs
• Configure Vertical Demod
Assignment
• Configure NC 1500 as
destination for Virtual
RPDs #1, #2, and #3
• Configure demodulator
channels 1 - 3 on each
DM board
DAC 6000 Configuration
• Define three RPDs that
correspond to Virtual
50
APPENDIX C: DEMODULATOR ASSIGNMENT

ARPD 1000 Deployment Use Analogous RPD Configuration Overview

Case Deployment

RPDs #1, #2 and #3,

where only Demod IDs 1
and 4 are used for each
Virtual RPD
NC 1500 Configuration
• Define three RPDs that
correspond to Virtual
RPDs #1, #2, and #3
Two Demods — Two RPDs — Daisy-chained ARPD Configuration
Vertical Assignment within an RPD
• Configure Legacy mode,
that is, Protocol Version 1
• Configure two Virtual
RPDs
• Configure Vertical Demod
Assignment
• Configure an NC 1500 as
the destination for Virtual
RPDs #1 and #2
• Configure demodulator
channels 1 and 2 on each
DM board
DAC 6000 Configuration
• Define two RPDs that
correspond to Virtual
RPDs #1 and #2, where
only Demod IDs 1, 3, and
5 are used for each Virtual
RPD
NC 1500 Configuration
• Define two RPDs that
correspond to Virtual
RPDs #1 and #2
One Demod — One RPD — ARPD Configuration
Vertical Assignment No Daisy-chaining
• Configure Legacy mode,
(same as Horizontal)
that is, Protocol Version 1
• Configure one Virtual RPD
• Configure Vertical Demod
Assignment
• Configure a RADD 6000
as the destination for
Virtual RPD #1 if the
demodulator channel is
used only for polling;
otherwise, configure an
NC 1500 as the
destination for Virtual RPD
#1
• Configure demodulator
channel 1 on each DM
board

51
APPENDIX C: DEMODULATOR ASSIGNMENT

ARPD 1000 Deployment Use Analogous RPD Configuration Overview

Case Deployment

DAC 6000 Configuration

• If the demodulator
channel is used for
polling, define one RPD
that corresponds to Virtual
RPD #1, where all Demod
IDs are used
NC 1500 Configuration
• If the demodulator
channel is used for
interactive traffic, define
one RPD that corresponds
to Virtual RPD #1

With a vertical assignment, demodulator channels are grouped by DM board where

all demodulator channels of the same DM board are assigned to the same virtual
RPD. In such a configuration, a virtual RPD typically contains a mixture of both
polling and interactive demodulator channels, so each virtual RPD must be added to
both the DAC 6000 and NC 1500. Configuring the ARPD 1000 to use a vertical
assignment does allow an operator to limit the number of RPD devices that are
added to the NC 1500 and DAC 6000 when an ARPD is not fully populated. When
an RPD only contains 4 or fewer DM boards, defining two virtual RPDs may be
sufficient, if all the DM boards associated with any virtual RPD are not present.

52
APPENDIX D: FAN REPLACEMENT
A fan failure is indicated with a solid red STATUS LED on the ARPD 1000 front panel.
When a fan fails, it must be replaced to ensure proper airflow and cooling within the
ARPD 1000. Powering down of the ARPD 1000 is recommended during fan
replacement.

WARNING! Removal and replacement procedures have fan cover

removed. Keep hands away from fan blades and do not insert or drop
objects into exposed fan blades.

Fan Removal
Refer to Figure D-1 to remove a fan:
1. Identify the failing fan, whose blade is not turning, on the rear panel of the
ARPD 1000.
The blades of a failing fan do not turn, whereas a marginal fan may have a
rasping sound that definitely sounds off-pitch, and may also exhibit surges in
volume, different from the steady hum of correctly functioning fans. In a rack of
ARPD 1000s, it is worthwhile identifying any marginal fans to ensure adequate
spares are available.
2. Remove the three Phillips screws securing the fan to the chassis. Save these, as
they must be re-installed on the new fan.
3. Move the fan and fan guard away from the back of the ARPD 1000.
4. Note the orientation of the fan cable and its relationship with the notch on the
fan guard. Retain the fan guard, as it must be installed with the new fan.
5. Note that the fan blades face toward the ARPD 1000 and the rear of the fan
motor faces away from the ARPD 1000.
6. Unplug the fan power cable from its connector.
7. Place the fan guard behind the new fan, with the fan cable through the notch in
the fan guard.
8. Plug the fan power cable into its connector.
9. Using the three Phillips screws, attach the fan and fan guard to the rear of the
ARPD 1000, as shown in Figure D-1.

53
APPENDIX D: FAN REPLACEMENT

Figure D-1 — Fan removal/replacement

Replacement Fan Kit Assemblies

The Motorola part number for an ARPD 1000 replacement fan kit assembly (one fan)
is 541598-001-00.

54
Motorola, Inc.
101 Tournament Drive
Horsham, PA 19044 U.S.A.

http://www.motorola.com
541407-001-a
06/07