The M302 Monitor Module - Fire-Lite Alarms MS-9200 Programming, Installation, Maintenance And Operating Instruction Manual

The M302 Monitor Module

2.11 The M302 Monitor Module
The M302 Monitor Module is an addressable module that interfaces and monitors UL compatible conventional 2-
wire smoke detectors. Refer to the Fire•Lite Device Compatibility Document. The supervised circuit may be wired
as NFPA Style B or Style D.
Communications SLC Loop Connections
Connect the MS-9200 Communications SLC loop to M302 Terminals 1(-) and 2(+). The M302 occupies one module
address on the loop. Use rotary switches on the M302 to set the module to the required loop address.
NFPA Style B Initiating Device Circuit
Connect 2-wire smoke detectors to M302 Terminals 6(B-) and 7(B+) as illustrated in Figure 2-21, "Style B Circuit
using M302," on page 39. IDC installation wiring must not exceed 25 ohms, 12-18 AWG (0.75 - 3.25 mm
Use a 3.9K ohm ELR across the last initiating device.
NFPA Style D Initiating Device Circuit
Connect 2-wire smoke detectors to M302 Terminals 6(B-) and 9(D-), 7(B+) and 8(D+) as illustrated in Figure 2-22,
"Style D Circuit using M302," on page 40. IDC installation wiring must not exceed 25 ohms, 12-18 AWG (0.75 -
2
3.25 mm ) wire.
Power Connections
Power must be switched 24 VDC isolated, filtered and battery backed. Connect to M302 Terminals 3(-) and 4(+) as
illustrated in Figure 2-21, "Style B Circuit using M302," on page 39 and Figure 2-22, "Style D Circuit using M302,"
on page 40.
Test Switch
The M302 includes a magnetic test switch sensor located near the center front of the module. Activation of this
switch by test magnet P/N M02-04-00 will cause an open circuit indication in the Style B/D loop.
M302 Monitor Module Notes
IDC and power connections are supervised by the M302 and reported to the MS-9200
1.
Maximum current in alarm is 90 mA power-limited
2.
See "Power Supply Calculations" on page 77, for power supply calculations
3.
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Status LED
Rotary Decade Address Switches
Magnet Test Position
04/20/98 P/N 15668:I
2
) wire.