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4.4.1 Hardwired Amplifier
If configured as a hardwired (non PBUS) amplifier each of the AV-AMP-80 amplifiers (two per AV-AMP-80) is
activated whenever one of the AV-AMP-80 trigger inputs (trigger input 1, 2 or 3) is activated (see figure 22):
Trigger input 1 when activated not only turns on both amplifiers (audio notification appliance circuits) it also
activates programmed message/tone #1, and plays this message over the audio notification appliance
circuits. Trigger input 1 has a higher priority than trigger input 2. If both trigger inputs are active at the same
time, programmed message/tone #1 will be broadcasted.
Trigger input 2 when activated plays message/tone #2 on both amplifiers (audio notification appliance
circuits).
Trigger input 3 sets the AV-AMP-80 to “booster mode” which allows any external audio signal (25vrms) to
be broadcasted out of one or both of the AV-AMP-80 amplifiers (based on wiring). This trigger input has the
highest priority, if both trigger input 1 and 2 are active during a trigger input 3 activation amplifiers will
broadcast the external audio input signal. This is how live voice communications is broadcasted through the
amplifier. By activating trigger input 3 on the AV-AMP-80 amplifier, microphone communications from an
Axis
AX
audio panel can be rebroadcasted out of the amplifier.
Note: Trigger input 3 must be activated for microphone audio input booster paging of the amplifier.
Designed into the AV-AMP-80 is a dedicated Form “C” trouble relay contact which transfers on any amplifier and/or
audio notification appliance circuit trouble/failure. In a hardwired AV-AMP-80 amplifier installation, this trouble/fault
relay contact must be monitored by the fire alarm control panel.
Note: When utilizing the optional AV-AMP-80 audio amplifier and associated AX-PSU-6 power supply
charger in a hardwired audio installation, the trouble relay contacts of both modules must be monitored by
the fire alarm control panel. This monitoring can be done via the AX-CTL ancillary contact monitoring input.
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