VAR4 / VAR12 / VAR20 - Operation Manual
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7
Mic/Line Input Configuration
Dependent on model, the VAR Router has 4,12 or 20 electronically balanced universal inputs, these have
switchable sensitivity to accept microphone or line level signals, and have digitally controlled adjustable
analogue gain prior to the DSP.
Each of these inputs features a serial communications interface to allow any ASL microphone to be
connected.
The first two of these inputs can also be used for ASL emergency or Fireman’s Microphones in Voice Alarm
systems, this is because they have the facility for an analogue bypass mode in the event of processor
failure/mis-operation, as required by BS5839 Pt 8. In the event of processor failure or communication failure,
the operation reverts to All-Call mode. These two inputs also support DVA routing for triggering DVA
messages.
It is possible to set any of the Mic/Line inputs as Miscellaneous Input. When configured for this mode of
operation, the serial communication interface is disabled and other type of audio input may be connected,
e.g. PC/DVA audio, Long Line PA (LLPA) audio, or an additional background music input. The audio may be
routed by the Permanent Route or Latent Contact Route mechanisms.
It is possible to set any of the Mic/Line inputs as Unused. When configured for this mode of operation they
are excluded from routing and audio monitoring.
Table 6
summarises the input types supported by the VAR Router’s Mic/Line inputs, and the type of audio
source that can be connected to each of these input types.
The VAR Router inputs are not all equivalent with regards to how they can be configured for each audio
input type, and how many buttons are available on microphones connected to each input.
Table 7
gives a detailed breakdown of which input types can be used on each VAR Router input, with which
buttons.
Table 8
summarises the configurable input parameters, and indicates those parameters available for each
type of Mic/Line input with a tick (
9
). Each parameter configuration is described in the following sections.
Table 6
VAR Router Mic/Line Input Types
Available Input Types
Used for
Examples of ASL Microphones
ASL Fire Microphone
All Call Emergency or Fire Microphones
FMS01, EAP01
ASL Zoned Fire Microphone
Zoneable Emergency or Fire Microphones
FMS05, FMS10, FMS20, SMC01,
SMC02, ZEC20
ASL Paging Microphone
Multiple button paging microphones
DMS5, DMS10, DMS20, ZPC20
ASL Single Button Microphone
Single button paging microphones
SAP01, SAP02
Miscellaneous Input
Background music, non-ASL microphones,
PC/DVA systems,
Long Line PA (LLPA)
audio
TMS01 Touchscreen Microphone
Unused Unused
input
N.A.
Содержание VAR12
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