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MMF-300(A) Series,
MDF-300
Addressable Monitor Modules
Addressable Devices

General
Four different monitor modules are available for Fire•Lite’s
intelligent control panels to suit a variety of applications. Moni-
tor modules are used to supervise a circuit of dry-contact input
devices, such as conventional heat detectors and pull stations,
or monitor and power a circuit of two-wire smoke detectors
(MMF-302(A)).
MMF-300(A) is a standard-sized module (typically mounts to a
4" [10.16 cm] square box) that supervises either a Style D
(Class A) or Style B (Class B) circuit of dry-contact input
devices.
MMF-301(A) is a miniature monitor module a mere 1.3" (3.302
cm) H x 2.75" (6.985 cm) W x 0.65" (1.651 cm) D that super-
vises a Style B (Class B) circuit of dry-contact input devices. Its
compact design allows the MMF-301(A) to be mounted in a

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single-gang box behind the device it monitors.
MMF-302(A) is a standard-sized module used to monitor and
supervise compatible two-wire, 24 volt, smoke detectors on a
Style D (Class A) or Style B (Class B) circuit.
MDF-300(A) is a standard-sized dual monitor module used to MMF-300(A) (Type H)
monitor and supervise two independent two-wire Style B
(Class B) dry-contact initiating device circuits (IDCs) at two supervisory indication at the control panel. Monitored circuit
separate, consecutive addresses in intelligent, two-wire sys- may be wired as an NFPA Style B (Class B) or Style D (Class
tems. A) Initiating Device Circuit. A 47K Ohm End-of-Line Resistor
LiteSpeed™ is a communication protocol developed by (provided) terminates the Style B circuit. No resistor is required
Fire•Lite Engineering that greatly increases the speed of com- for supervision of the Style D circuit.
munication between analog intelligent devices. Intelligent
devices communicate in a grouped fashion. If one of the
MMF-300(A) OPERATION
devices within the group has new information, the panel CPU Each MMF-300(A) uses one of the available module
stops the group poll and concentrates on single points. The addresses on an SLC loop. It responds to regular polls from
net effect is response speed greater than five times that of the control panel and reports its type and the status (open/nor-
other communication protocols. mal/short) of its Initiating Device Circuit (IDC). A flashing LED
indicates that the module is in communication with the control
panel. The LED latches steady on alarm (subject to current
MMF-300(A) Monitor Module limitations on the loop).
• Built-in type identification automatically identifies this device
as a monitor module to the control panel. MMF-300(A) SPECIFICATIONS
• Powered directly by two-wire SLC loop. No additional Nominal operating voltage: 15 to 32 VDC.
power required. Maximum current draw: 5.0 mA (LED on).
• High noise (EMF/RFI) immunity. Average operating current: 375 µA (LED flashing), 1 com-
• SEMS screws with clamping plates for ease of wiring. munication every 5 seconds, 47k EOL.
• Direct-dial entry of address: 01 – 159 on MS-9600 series Maximum IDC wiring resistance: 1500 Ohms.
panels, 01 – 99 on other compatible systems.
Maximum IDC Voltage: 11 Volts.
• LED flashes during normal operation and latches on steady
to indicate alarm. EOL resistance: 47K Ohms.
The MMF-300(A) Monitor Module is intended for use in intelli- Temperature range: 32°F to 120°F (0°C to 49°C).
gent, two-wire systems, where the individual address of each
Humidity range: 10% to 93% noncondensing.
module is selected using the built-in rotary switches. It pro-
vides either a two-wire or four-wire fault-tolerant Initiating Dimensions: 4.5" (11.43 cm) high x 4" (10.16 cm) wide x
Device Circuit (IDC) for normally-open-contact fire alarm and 1.25" (3.175 cm) deep. Mounts to a 4" (10.16 cm) square x
supervisory devices. The module has a panel-controlled LED 2.125" (5.398 cm) deep box.
indicator. The MMF-300(A) can be used to replace M300(A)
modules in existing systems. MMF-301(A) Mini Monitor Module
MMF-300(A) APPLICATIONS • Built-in type identification automatically identifies this device
Use to monitor a zone of four-wire smoke detectors, manual as a monitor module to the panel.
fire alarm pull stations, waterflow devices, or other normally- • Powered directly by two-wire SLC loop. No additional
open dry-contact alarm activation devices. May also be used power required.
to monitor normally-open supervisory devices with special • High noise (EMF/RFI) immunity.

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• Tinned, stripped leads for ease of wiring. • Supervises IDC wiring and connection of external power
• Direct-dial entry of address: 01 – 159 on MS-9600 series source.
panels, 01 – 99 on other compatible systems • High noise (EMF/RFI) immunity.
• SEMS screws with clamping plates for ease of wiring.
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• Direct-dial entry entry of address: 01 – 159 on MS-9600
series panels, 01 – 99 on other compatible systems.
• LED flashes during normal operation.
• LED latches steady to indicate alarm on command from
control panel.
The MMF-302(A) Interface Module is intended for use in intelli-
gent, addressable systems, where the individual address of
each module is selected using built-in rotary switches. This
module allows intelligent panels to interface and monitor two-
wire conventional smoke detectors. It transmits the status
(normal, open, or alarm) of one full zone of conventional
detectors back to the control panel. All two-wire detectors
being monitored must be UL compatible with the module. The
MMF-302(A) can be used to replace M302(A) modules in
existing systems.
MMF-302 (A) APPLICATIONS
Use the MMF-302(A) to monitor a zone of two-wire smoke
The MMF-301(A) Mini Monitor Module can be installed in a detectors. The monitored circuit may be wired as an NFPA
single-gang junction directly behind the monitored unit. Its Style B (Class B) or Style D (Class A) Initiating Device Circuit.
small size and light weight allow it to be installed without rigid A 3.9 K Ohm End-of-Line Resistor (provided) terminates the
mounting. The MMF-301(A) is intended for use in intelligent, end of the Style B or D (class B or A) circuit (maximum IDC
two-wire systems where the individual address of each module loop resistance is 25 Ohms). Install ELR across terminals 8
is selected using rotary switches. It provides a two-wire initiat- and 9 for Style D application.
ing device circuit for normally-open-contact fire alarm devices.
The MMF-301(A) can be used to replace M301(A) modules in MMF-302(A) OPERATION
existing systems. Each MMF-302(A) uses one of the available module
addresses on an SLC loop. It responds to regular polls from
MMF-301(A) APPLICATIONS the control panel and reports its type and the status (open/nor-
Use to monitor a single device or a zone of four-wire smoke mal/short) of its Initiating Device Circuit (IDC). A flashing LED
detectors, manual fire alarm pull stations, waterflow devices, indicates that the module is in communication with the control
or other normally-open dry-contact devices. May also be used panel. The LED latches steady on alarm (subject to current
to monitor normally-open supervisory devices with special limitations on the loop).
supervisory indication at the control panel. Monitored circuit/
device is wired as an NFPA Style B (Class B) Initiating Device MMF-302(A) SPECIFICATIONS
Circuit. A 47K Ohm End-of-Line Resistor (provided) terminates Nominal operating voltage: 15 to 32 VDC.
the circuit.
Maximum current draw: 5.1 mA (LED on).
MMF-301(A) OPERATION Maximum IDC wiring resistance: 25 Ohms.
Each MMF-301(A) uses one of the available module Average operating current: 270 µA, 1 communication and 1
addresses on an SLC loop. It responds to regular polls from LED flash every 5 seconds, 3.9k eol.
the control panel and reports its type and the status (open/nor-
mal/short) of its Initiating Device Circuit (IDC). EOL resistance: 3.9K Ohms.
External supply voltage (between Terminals T10 and T11):
MMF-301(A) SPECIFICATIONS
• DC voltage: 24 volts power limited.
Nominal operating voltage: 15 to 32 VDC.
• Ripple voltage: 0.1 Vrms maximum.
Average operating current: 350 µA, 1 communication every
5 seconds, 47k EOL; 600 µA Max. (Communicating, IDC • Current: 90 mA per module maximum.
Shorted). Temperature range: 32°F to 120°F (0°C to 49°C).
Maximum IDC wiring resistance: 1500 Ohms. Humidity range: 10% to 93% noncondensing.
Maximum IDC Voltage: 11 Volts. Dimensions: 4.5" (11.43 cm) high x 4" (10.16 cm) wide x
1.25" (3.175 cm) deep. Mounts to a 4" (10.16 cm) square x
Maximum IDC Current: 450 µA.
2.125" (5.398 cm) deep box.
EOL resistance: 47K Ohms.
Temperature range: 32°F to 120°F (0°C to 49°C). MDF-300(A) Dual Monitor Module
Humidity range: 10% to 93% noncondensing. The MDF-300(A) Dual Monitor Module is intended for use in
Dimensions: 1.3" (3.302 cm) high x 2.75" (6.985 cm) wide x intelligent, two-wire systems. It provides two independent two-
0.65" (1.651 cm) deep. wire initiating device circuits (IDCs) at two separate, consecutive
addresses. It is capable of monitoring normally open contact fire
Wire length: 6" (15.24 cm) minimum. alarm and supervisory devices. The module has a single panel-
controlled LED.
MMF-302(A) Interface Module
• Supports compatible two-wire smoke detectors.

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NOTE: The MDF-300(A) provides two Style B (Class B) IDC cir- MDF-300(A): Monitor module, dual, two independent Class B
cuits ONLY. Style D (Class A) IDC circuits are NOT supported in circuits.
any application.
SMB500: Optional surface-mount backbox.
MDF-300(A) SPECIFICATIONS NOTE: See installation instructions and refer to the SLC Wiring
Normal operating voltage range: 15 to 32 VDC. Manual, PN 51309.
Maximum current draw: 6.4 mA (LED on).
Architects’/Engineers’ Specifications
Average operating current: 750 µA (LED flashing).
Specifications of these devices and all FireLite products are
Maximum IDC wiring resistance: 1,500 Ohms. available from FireLite.
Maximum IDC Voltage: 11 Volts.
Maximum IDC Current: 240 µA
EOL resistance: 47K Ohms.
Temperature range: 32° to 120°F (0° to 49°C).
Humidity range: 10% to 93% (non-condensing).
Dimensions: 4.5" (11.43 cm) high x 4" (10.16 cm) wide x
1.25" (3.175 cm) deep. Mounts to a 4" (10.16 cm) square x
2.125" (5.398 cm) deep box.
MDF-300(A) AUTOMATIC ADDRESSING
The MDF-300(A) automatically assigns itself to two address-
able points, starting with the original address. For example, if
the MDF-300(A) is set to address “26”, then it will automati-
cally assign itself to addresses “26” and “27”.
NOTE: “Ones” addresses on the MDF-300(A) are 0, 2, 4, 6, or 8
only. Terminals 6 and 7 use the first address, and terminals 8 and
9 use the second address.

CAUTION:
Avoid duplicating addresses on the system.

Installation
MMF-300(A), MMF-302(A), and MDF-300(A) modules mount
directly to a standard 4" (10.16 cm) square, 2.125" (5.398 cm)
deep, electrical box. They may also be mounted to the
SMB500 surface-mount box. Mounting hardware and installa-
tion instructions are provided with each module. All wiring
must conform to applicable local codes, ordinances, and regu-
lations. These modules are intended for power-limited wiring
only.
The MMF-301(A) module is intended to be wired and mounted
without rigid connections inside a standard electrical box. All
wiring must conform to applicable local codes, ordinances,
and regulations.

Agency Listings and Approvals

In some cases, certain modules may not be listed by certain
approval agencies, or listing may be in process. Consult fac-
tory for latest listing status.
• UL: S2424.
• ULC: S2424.
• FM Approved.
• CSFM: 7300-0075:0185.
• MEA: 72-01-E.

Product Line Information

NOTE: “A” suffix indicates ULC-listed model.
MMF-300(A): Monitor module.
MMF-301(A): Monitor module, miniature.
MMF-302(A): Monitor module, two-wire detectors.

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 Fire·Lite® is a registered trademark and LiteSpeed™ and FireWatch™ are
trademarks of Honeywell International Inc.
©2015 by Honeywell International Inc. All rights reserved. Unauthorized use
of this document is strictly prohibited.

This document is not intended to be used for installation purposes.

We try to keep our product information up-to-date and accurate.
We cannot cover all specific applications or anticipate all requirements.
All specifications are subject to change without notice.

For more information, contact Fire•Lite Alarms. Phone: (800) 627-3473, FAX: (877) 699-4105.
www.firelite.com

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