Installation guide
VAR4 / VAR12 / VAR20 - Product Description
5.2 Controls
The front panel has membrane keys and a rotary encoder for entering commands and making selections,
and a monitor loudspeaker.
Figure 13 VAR Router Controls
1 2 3 4 7 6 5
11
10 9 8
13
12
Table 7 VAR Router Front Panel Controls
Indicators Description
1
AUDIO MON key Selects Audio Monitor sub-menu on the LCD display.
2
LAMP TEST key
Tests the interface to all connected amplifier units. The fault and select LEDs for
each amplifier are turned on, and the audible alarm sounds for 3 seconds. The
VAR Router LEDs and sounder are also tested.
The display shows ‘LAMP + SOUNDER TEST’ during this time.
This function is also available from the ‘Tests’ menu.
3
DEFAULT key
Press to clear previously configured text strings quickly during system
configuration, or to return fields to their default values.
4
7
X key
W key
The left and right arrow keys move the item selection in the direction selected, to
the next item in the menu. The selected item is indicated by [brackets] around the
selection.
5
6
S key
T key
The up and down arrow keys toggle a selection, or increment a number, or a letter
of the alphabet when editing.
The rotary encoder acts in the same manner as these keys, and enables faster
editing.
8
SELECT key Press after selecting an item to confirm the selection.
9
BACK key
Press after selecting an item to cancel the selection.
If pressed repeatedly, this returns the display to the top-level menu.
10
FAULT ACCEPT key
Accepts all current faults, steadies the flashing fault LED indication, and turns off
the audible alarm until a new fault condition occurs.
11
FAULT CLEAR key
Clears all faults and sets all connected equipment to the 'no faults' state, which
also cancels any Amplifier Changeovers in effect. If there are any faults present in
the system then they are detected anew, and reported again.
12
Rotary Encoder
Multi-function:
• For fast increment and decrement of menu items (faster than using
S and T arrow keys).
• During Audio Monitoring it also acts as a Volume Control.
13
Loudspeaker Dual function: Alarm Sounder and Audio Monitor
Issue: 03 complete, approved
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