User guide

56 Distributed Audio Panel Manual — P/N 52265:B1 6/8/2010
Operating Instructions Operation
4.3.5 Trouble Condition Response
All trouble conditions are fully supervised in standby and alarm unless otherwise noted and will
cause the following to occur (note that response to AC loss will depend on the setting of S2 switch
2 as shown in Table 2.3 on page 28):
 Deenergize the trouble relay causing the contacts to transfer
 Turn on the system Trouble LED
 Open CMD1 input - ONLY if CMD1 is not in the alarm state
In addition to the above trouble responses, the following troubles will cause the specific responses
noted:
AC Loss
• Turn off the AC Power LED on the main circuit board
• Deenergize AC Loss Relay on the main circuit board
• Deenergize Form-C Trouble and CMD1 contacts if S2 Switch 2 is OFF (refer to Table 2.3 on
page 28)
Battery Trouble (low or no battery)
• Turn on the Battery Trouble LED on the main circuit board
Charger Trouble
• Turn on the Charger Trouble LED on the main circuit board
Ground Fault
• Turn on the Ground Fault LED on the main circuit board to indicate zero impedance to ground
Tone Generator Fault
• Turn on the Tone Generator Trouble LED on the main circuit board
Message Generator Trouble (optional FC-MGM)
• Turn on the Message Generator Trouble LED on the FC-MGM
CMD1 or CMD2 (Indicated by the System Trouble LED)
• Both inputs are supervised for open circuit condition when unit is programmed for Normally
Open contacts, otherwise supervision is provided by the host Fire Alarm Control Panel NAC
output
CMD3, CMD4, and CMD5 (Indicated by the System Trouble LED)
• All inputs are supervised for open circuit condition
Background Music
• When background music option is enabled via S2 DIP switch 3, the Distributed Audio Panel
will constantly monitor the external audio riser signal. Both amplifiers and speaker wiring
continue to be fully supervised when background music is output from the Distributed Audio
Panel. Amplifier faults are reported after 75 seconds. Note that when AC power is lost, the
Distributed Audio Panel will shut off background music to conserve batteries.
NOTE: If the audio panel is configured as an ACC-25/50DAZS zone system, CMD1 will not open
for troubles since all troubles are transmitted from the ACC-25/50DAZS to the ACC-25/50ZS/T via
the ACC control serial link
NOTE: The local Authority Having Jurisdiction must approve the use of background music.
Background music is not available with the ACC-25/50DAZS.