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AVAC VOICE ALARM SYSTEM
AN OVERVIEW OF THE AVAC VOICE ALARM SYSTEM
AVAC is a low-cost, high-quality modular voice alarm system specially designed to simplify the
provision of a fully BS 5839 part 8 (1998) compliant voice alarm system.
In one compact wall-mountable enclosure, AVAC comprises:-
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Conventional and analogue (Apollo XP95/Xplorer/Discovery) fire alarm interfaces.
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A high-quality digital message store containing programmable Evacuate, Alert and Test messages.
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A prioritised mixer.
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Three balanced line level inputs for the (optional) connection of an emergency microphone,
paging/public address equipment and a background music source.
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Two x 60 watt Class D amplifiers (plus an optional standby amplifier), each of which will
accommodate up to 60 watts of loudspeaker load.
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An EN54-4 compliant switch-mode power supply and battery charger.
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Space for 2 x 7 AHr VRLA batteries typically providing at least 24 hours (standby) and
30 minutes (alarm running) time.
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A slave line level output allowing the connection of up to 10 slave AVACs.
(Slave AVACs are typically used to extend loudspeaker coverage in areas such as warehouses.
They also allow greater flexibility in the segregation of public address paging and
background music distribution as they have their own paging and background music inputs).
The fact that multiple AVACs (and slaves) can be connected to one fire detection system makes
the AVAC voice alarm system ideal not just for simple one zone installations but for virtually all
small to medium sized applications, including phased evacuation projects, in areas such as hotels,
leisure centres and licensed premises.
An overview of an AVAC Master
AVAC Installation and Maintenance Manual • Approved Document No. DAU0000402 Rev 6 • Page 6
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