User guide

Distributed Audio Panel Manual — P/N 52265:B1 6/8/2010 55
Operation Operating Instructions
4.2.3 LEDs on Audio Amplifier Module
Amp Supv - Supervision (Audio Amplifier Module)
This green LED (one on each amplifier), when on steady, indicates that the amplifier is fully func-
tional. The Distributed Audio Panel constantly tests the amplifier to verify proper operation.
Circuit Trouble (Audio Amplifier Module)
This yellow LED (one on each amplifier) turns on steady when a trouble is detected in the amplifier
or to indicate an open or short circuit on the field wiring attached to the amplifier output terminals.
4.2.4 LEDs on ACC-ZPM (ACC-25/50DAZS Only)
ACC COMM
This green LED remains on if communication with the ACC-25/50ZS/T main panel is active. It
extinguishes if communication is lost.
4.3 Operation
The Distributed Audio Panel continuously monitors system status. When no system alarm or local
trouble conditions exist, all LEDs are off except the amplifier supervision LED(s), the Power LED
and the AC Power LED located on the main circuit board and the ACC LED on the ACC-ZPM
module installed in an ACC-25/50DAZS. The Notification Appliance Circuits (speakers) are off
and all relays are in their normal state. Zone activations and local troubles are annunciated by the
ACC-25/50 Series panel if connected to the Distributed Audio Panel.
4.3.1 Fire Alarm
The Distributed Audio Panel will, upon detection of an alarm condition (CMD1, CMD2 CMD3,
CMD4, or CMD5 Inputs active or via the ACS):
 Turn on the Active LED steady
 Turn on the appropriate Notification Appliance Circuit speakers
 Turn on the appropriate Audio Amplifier(s)
 Route audio riser or tone/message to appropriate speaker circuit
4.3.2 Fire Alarm Restoral
 Turn off the Active LED
 Turn off the Notification Appliance Circuits
 Turn off the Audio Amplifiers
 Turn off the digital voice message or tone at its present point in transmission
4.3.3 General Page Using Optional Remote Microphone
(ACC-25/50DA Only)
Pressing the remote microphone push-to-talk switch will direct paging audio to all speaker circuits
located at the Distributed Audio Panel.
4.3.4 Emergency Page Using Optional Remote Microphone
(ACC-25/50DA Only)
Pressing the remote microphone push-to-talk switch will interrupt the tone/voice message and
direct paging audio to all speaker circuits located at the ACC-25/50DA Panel.