Section One: Annunciators - Fire-Lite AFM-16ATX User Manual

Section One: Annunciators

Fire•Lite annunciator modules provide the Sensiscan 2000 with up to 32 remote serially
connected annunciators, each with a capacity of 64 points.
The annunciator modules provide arrays of LEDs to indicate, at a remote location, the
status of circuits within the system. Annunciator points in a Sensiscan 2000 directly follow
the circuit arrangement of modules installed in the cabinet.
Control of common system functions such as signal silence, system reset, and local
annunciation controls (local acknowledge and lamp test) may be accomplished through
the annunciator's integral membrane push switches.
Communication between the FACP and the annunciators is accomplished over a power-
limited two-wire serial interface employing an EIA-485 communication standard. Power
is provided via a separate power-limited power loop from the control panel which is
inherently supervised by the FACP (loss of power results in an annunciator communica-
tion failure at the control panel). The annunciator can also be powered from a remote UL
listed power-limited power supply.
There are two basic annunciator types, alarm and alarm/trouble, each with its own
expander module.
15390 Rev D 8/2/96 P/N 15390:D
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