Installation guide

VAR4 / VAR12 / VAR20 - Product Description
The VAR12 Router includes:
• Digital storage for 4 x 32-second messages and 4 x 16-second messages.
• Twelve universal Mic/Line inputs, each of which supports a serial interface to enable an ASL multi-zone
Paging Microphone to be connected.
All-Call or Zoneable Fire Microphones may be connected to Inputs 1 and 2. These act as All-Call failsafe
override microphones in the event of processor failure as required by BS5839 Part 8.
• Twelve A&B audio outputs.
• Two connections for background music sources, either of which can be selected for routing.
• Built-in fire alarm interface:
− 10 non-isolated analogue interfaces.
− 32 opto-isolated interfaces.
The VAR20 Router includes:
• Digital storage for 6 x 32-second messages and 6 x 16-second messages.
• Twenty universal Mic/Line inputs, each of which supports a serial interface to enable an ASL multi-zone
Paging Microphone to be connected.
All-Call or Zoneable Fire Microphones may be connected to Inputs 1 and 2. These act as All-Call failsafe
override microphones in the event of processor failure as required by BS5839 Part 8.
• Twenty A&B audio outputs.
• Two connections for background music sources, either of which can be selected for routing.
• Built-in fire alarm interface:
− 10 non-isolated analogue interfaces.
− 52 opto-isolated interfaces.
Three VA system controller modes are provided:
• Configuration Mode: to commission and configure the system.
• Test Mode: to initiate and control a number of unit and system test.
• Fault Monitor Mode: to act as a comprehensive fault display.
• Audio Monitor Mode: to monitor the audio output of any input signal, DVA message or amplifier output,
via both the built in loudspeaker and LCD display.
The VAR Router front panel provides a menu-driven interface and contains keys used to navigate the
menus. Alteration of the VAR Router, amplifier and surveillance settings is controlled by access code.
The VAR Router products support a dial-in diagnostic interface allowing interrogation of fault status from a
remote site. Because all parameters are controlled digitally, it is also possible to adjust routing and audio
parameters remotely.
A VAR-NIA Network Interface Adapter provides the VAR12 and VAR20 with networking capability. The
VAR-NIA interfaces the VAR12 or VAR20 to an Intellevac Network, enabling announcements and DVA
messages broadcast from an Intellevac Network’s Audio Control Unit (ACU) or any microphone connected to
it. The Intellevac Network is the solution for large sites, where the VAR Routers can be networked to form
multiple equipment room installations. For details on the Intellevac Network refer to the Intellevac [Table 8-7],
or VAR8-ACU documentation [Table 8-6]. For details on the VAR-NIA, refer to the VAR-NIA Product Manual
[Table 8-5].
Issue: 03 complete, approved
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