MS-4424 15153:F1 06/18/97
7
1.3 Optional Boards
The MS-4424 has mounting slots for two option boards. Any two of the following three option modules may
be installed.
Transmitter Module (4XTMF)
The Transmitter Module provides a supervised output for local energy
municipal box transmitter (for NFPA 72-1993 Auxiliary Fire Alarm Systems)
and alarm and trouble reverse polarity circuits (for NFPA 72-1993 Remote
Station Fire Alarm Systems). Also included is a DISABLE switch and disable
trouble LED.
As a jumper option, the alarm reverse polarity circuit will open on trouble if
no alarm exists.
LED Interface Module (4XLMF)
The LED Interface Module supports the RZA-4XF Remote Annunciator
module. Annunciator wiring is supervised for open conditions by this
module. The Annunciator Driver Module mounts to the main board, occu-
pying one of the two option connectors.
Zone Relay Module (4XZMF)
The Zone Relay module provides Form-C contacts for the following:
• Alarm Zone 1
• Alarm Zone 2
• Alarm Zone 3
• Alarm Zone 4
• System Alarm
• System Trouble
As a jumper option, the first four relays described above can be made
silenceable.
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