1 2 5 3 0 / 1 2 5 4 0 O W N E R ' S M A N U A L
P/N 447203 Issue I
V-23
Interface Module (9191)
The 9191 (System Sensor M502M) addressable Interface Module allows the addressable device circuit to
interface and monitor two-wire conventional smoke detectors. All two-wire detectors being monitored
must be UL compatible with the module. The 9191 is addressed through the communication line of
intelligent systems. When the module is interrogated, it transmits the status of one zone of two-wire
detectors to an intelligent control unit. Status conditions are reported as normal, open, or alarm. The
interface module supervises the zone of detectors and the connection of an external power supply. Two
rotary decade switches allow setting module addresses from 01–99. A status LED indicator is provided
and is controlled by code command from the control unit. The module provides a magnetically activated
test switch for testing the module’s electronics and connections to the control unit.
NOTE:
The devices are set at the factory for address 00. This is a default code.
During installation set address to the predetermined address code.
