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Document 15342 Rev D1 07/24/97 P/N 15342:D1
Capabilities
When installed with a System 500, the ACM-8R can follow the status of initiating and
notification circuits, relays, and several system control functions.
Circuits:
IZ-4/IZ-4A/IZ-8 Initiating Device Circuits (alarm and trouble)
IC-4/ICE-4/ICR-4L Notification Appliance Circuits (activation and
trouble)
CR-4/CRE-4/CR-4L Control Relays (activation)
TC-2/TC-4 circuits (activation and trouble)
CPU Points:
Activated Notification Circuits 1 and 2, the Remote Signaling Munici
pal Tie circuit, and the Alarm Relay.
Trouble Indication
Communication between the CPU and the ACM-8R is accomplished over a two-wire EIA-
485 serial interface. This communication, to include the wiring, is supervised by the
System 500. Loss of communication results in "System Trouble" and "Module Failure"
indications at the CPU.
Installation Requirements
The CPU must be operating with software Part Number 73265 or greater. The EIA-485
circuit that drives the ACM-8R must be connected to the CPU as illustrated.
Appendix C
ACM-8R and the System 500
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