Fire-Lite MMF-302 User Manual
MMF-302 Interface Module
Installation Instructions
Specifications
Normal Operating Voltage: 15 to 32 VDC
EOL Resistance: 3.9K ohms
Maximum IDC Resistance: 25 Ohms
External Supply Voltage (between Terminals T3 and T4)
DC Voltage: 18-28 volts power limited
Ripple Voltage: 0.1 Volts RMS maximum
Current: 90mA per module
Temperature Range: 32˚F to 120˚F (0˚C to 49˚C)
Humidity: 10% to 93% Noncondensing
Dimensions: 41/2” H x 4” W x 11/4” D (Mounts to a 4” square by 21/8” deep box.)
Accessories: SMB500 Electrical Box
Before Installing
This information is included as a quick reference installation guide. Refer to the control panel installation manual for detailed system
information. If the modules will be installed in an existing operational system, inform the operator and local authority that the system
will be temporarily out of service. Disconnect power to the control panel before installing the modules.
NOTICE: This manual should be left with the owner/user of this equipment.
General Description
The MMF-302 Interface Module is intended for use in addressable two-wire systems, where the individual address of each module
is selected using the built-in rotary switches. This module allows addressable 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 this module. The MMF-302 has a panel controlled LED indicator
and can be used to replace an M302 module in existing systems.
Compatibility Requirements
To ensure proper operation, these modules shall be connected to listed compatible system control panels only.
Mounting
The MMF-302 mounts directly to 4” square electrical boxes (see Figure 2A). The box must have a minimum depth of 2
mounted electrical boxes (SMB500) are available.
Wiring
NOTE: All wiring must conform to applicable local codes, ordinances, and regulations. This module is intended for power-limited wiring only.
1. Install module wiring in accordance with the job drawings and appropriate wiring diagrams.
2. Set the address on the module per job drawings.
NOTE: Some panels support extended addressing. In order to set the module above address 99 on compatible systems, carefully
remove the stop on the upper rotary switch with thumb in the direction shown in Figure 1.
3. Secure module to electrical box (supplied by installer), as shown in Figure 2A.
1
/8”. Surface
6
1
1
7
0
6
0
8
9
10
14
15
8
7
9
ADDRESS
0
11
1
12
13
2
3
0
1
0
9
1
1
1
8
2
2
7
1
3
6
1
4
5
3
1
9
4
5
1
3
9
8
0
4
2
1
8
7
6
S
TENS
S
5
7
E
R
4
D
D
A
3
6
0
2
1
S
E
N
5
O
0
1
9
10
11
8
2
7
12
6
13
5
3
14
9
4
15
3
9
8
0
4
2
1
8
7
S
6
N
E
T
7
6
S
S
5
E
R
4
D
D
A
3
0
2
1
S
E
N
5
O
4
A78-2318-07
A78-2611-12
LOOP
9
5
4
8
3
2
7
TENS
5
6
4
3
2
5
ONES
A78-2610-10
Figure 1. Controls and indicators:
Figure 2A. Module mounting
Figure 2B:
F300-03-00 1 I56-1192-02
Fire•Lite Alarms, Inc., One Fire-Lite Place, Northford, CT 06472, 203-484-7161
Figure 3. Interface two-wire conventional detectors, NFPA Style B (Class B):
COMMUNICATION LINE
32 VDC MAX.
TWISTED PAIR
IS RECOMMENDED
(—)
(+)
0
7
8
9
10
11
1
12
13
14
2
0
15
8
7
6
9
3
4
0
ADDRESS
OPTIONAL BRANCH CIRCUIT
TO NEXT INTERFACE MODULE.
MODULE SUPERVISES SUPPLY
VOLTAGE AND DETECTOR LOOP.
(—)
(+)
3.9K EOL
RESISTOR
(INCLUDED)
A2143-10
TERMINAL WIRING MUST BE POWER LIMITED.
DO NOT MIX FIRE ALARM INITIATING, SUPERVISORY,
OR SECURITY DEVICES ON THE SAME MODULE.
+
—
DO NOT LOOP WIRE UNDER TERMINALS. BREAK WIRE
RUN TO PROVIDE SUPERVISION OF CONNECTIONS.
DETECTORS MUST BE UL LISTED COMPATIBLE WITH MODULE.
INSTALL DETECTORS PER MANUFACTURER’S
INSTALLATION INSTRUCTIONS.
+
—
LOOP
TO NEXT
DEVICE
INTERFACE
MODULE
9
6
5
4
8
3
2
1
7
TENS
5
6
4
3
2
5
1
ONES
Figure 4. Interface two-wire conventional detectors, NFPA Style D (Class A):
TERMINAL WIRING MUST BE POWER LIMITED.
DO NOT MIX FIRE ALARM INITIATING, SUPERVISORY,
OR SECURITY DEVICES ON THE SAME MODULE.
TO NEXT
DEVICE
INTERFACE
MODULE
COMMUNICATION LINE
32 VDC MAX.
TWISTED PAIR
IS RECOMMENDED
(—)
(+)
CONNECT MODULES TO LISTED
COMPATIBLE FIRE LITE CONTROL
PANELS ONLY.
(—)
FROM PANEL OR
(+)
PREVIOUS DEVICE
CONNECT MODULES TO LISTED
COMPATIBLE FIRE LITE CONTROL PANELS ONLY.
(—)
FROM PANEL OR
(+)
PREVIOUS DEVICE
(—)
LISTED BATTERY-BACKUP SWITCHED
(+)
DC POWER SUPPLY.
POWER TO THE INTERFACE MODULE
MUST BE EXTERNALLY SWITCHED TO
RESET THE DETECTORS. A CRF-300
RELAY CONTROL MODULE CAN BE USED TO
SWITCH POWER FROM A STANDARD
POWER SUPPLY - SEE FIGURE 5.
A78-2394-18
0
9
7
8
9
6
5
10
11
4
8
3
12
13
3.9K EOL RESISTOR
REQUIRED AT TERMINALS
8 & 9 (INCLUDED)
A2143-10
+
—
DO NOT LOOP WIRE UNDER TERMINALS. BREAK WIRE
RUN TO PROVIDE SUPERVISION OF CONNECTIONS.
DETECTORS MUST BE UL LISTED COMPATIBLE WITH MODULE.
INSTALL DETECTORS PER MANUFACTURER’S
INSTALLATION INSTRUCTIONS.
+
—
2
1
14
7
0
15
TENS
8
7
6
9
5
6
4
3
2
5
1
0
ONES
ADDRESS
LOOP
1
2
3
4
OPTIONAL BRANCH CIRCUIT
TO NEXT INTERFACE MODULE.
MODULE SUPERVISES SUPPLY
VOLTAGE AND DETECTOR LOOP.
(—)
(+)
Figure 5. Relay control module used to disconnect a power supply:
COMMUNICATION LINE
TO NEXT
DEVICE
DC POWER SUPPLY, LISTED FOR FIRE
PROTECTION WITH BATTERY BACKUP
(–)
(+)
RELAY
CONTROL
MODULE
(+)
(–)
(–)
(+)
LOOP
0
9
8
1
7
2
6
3
5
4
ADDRESS
(—)
(+)
LISTED BATTERY-BACKUP, SWITCHED
DC POWER SUPPLY.
POWER TO THE INTERFACE MODULE
MUST BE EXTERNALLY SWITCHED TO
RESET THE DETECTORS. A CRF-300
RELAY CONTROL MODULE CAN BE USED TO
SWITCH POWER FROM A STANDARD
POWER SUPPLY - SEE FIGURE 5.
32 VDC MAX.
TWISTED PAIR
IS RECOMMENDED
(–)
(+)
CONNECT MODULES TO LISTED
COMPATIBLE CONTROL
PANELS ONLY.
(–)
FROM PANEL OR
(+)
PREVIOUS DEVICE
A78-2395-18
A78-2396-10
F300-03-00 2 I56-1192-02
©1999 Fire•Lite Alarms, Inc.
Loading...