Installation guide

VAR4 / VAR12 / VAR20 - Product Description
3.8 Permanent Routes
It is possible to program specific inputs to be permanently allocated to specific outputs. Such routes are
‘permanent’ unless overridden by a higher priority input. The route is restored once the higher priority input is
removed.
The typical scenario is background music, which may want to be assigned to certain areas. For example, to
route music to the shop-floor areas in a factory complex unless another broadcast was active. It is possible
to allocate any output to any audio input by means of the permanent route mechanism.
Although two music inputs, A+B, are provided, they are switched in the analogue domain before digitisation.
Therefore only one may be routed at a time. Either Music A or Music B may be routed by the Permanent
Route mechanism. If, however both are selected Music A will have priority over Music B and all routes using
Music B will switch to Music A.
If concurrent permanent routes are required to disparate zones, for example to route different music to two
different areas, then the background music input can be used for one source and Mic/Line Inputs should be
used for the additional music sources.
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A permanent route does not cause a busy indication on any microphone, otherwise all zones
would appear permanently busy in a scenario where background music feeds all zones.
Issue: 03 complete, approved
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