VAR4 / VAR12 / VAR20 - Operation Manual
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Is
Page 227 of 308
That having been done it is then possible to assign which input, or group of inputs, are controlled.
16.2.3
Configuring an Analogue Input as Volume Control
The application of the Volume Control function is to allow remote control of the volume of specific input
sources within a specific zone or zones. Normally the volume control will be mounted within the zone and
allow the control of the specific sources, typically music sources, within the zone, while leaving the volume of
all other sources unaffected.
As such it is possible to assign a particular Volume Control to be associated with one, or any group of, VAR
Router outputs.
L
•
Volume Controls provide 12 steps of attenuation. 33dB of control is provided from positions
‘1’ to ‘11’ fixed at 3dB per step with ‘0’ providing an ‘off’ position, i.e., the Volume Control
first position sets the volume of the associated output(s) to maximum.
•
In the event of a fault (connection failure to the Volume Control or RS485 communications
failure to the Remote I/O unit), the volume defaults to ‘off’.
It is possible to configure more than one Volume Control for the same output, provided the
inputs they govern are unique.
In order to configure an analogue input as Volume Control proceed as follows.
1. Select
Configuration
Æ
System
Æ
Router
Æ
Control
Æ
Remote
.
2. Move to scroll the Remote I/O unit list until the required unit is displayed:
[Remote I/O unit=n] Not Configured
Default value:
‘Remote I/O unit=1’
Possible I/O units: 1 to 3 for VAR4
1 to 6 for VAR12
1 to 9 for VAR20
3. Move to, and select the
Analogue
menu item.
[Analogue] Digital In Digital Out
4. Scroll the analogue input list and select the required input:
[Analogue channel=nn]
Default value:
‘Analogue channel=1’
Possible I/O units: 1 to 12
!
!
!
!
•
Make sure the selected analogue input is to be configured as 'Volume Control. Once
the ‘Volume’ menu item is selected, it will be assigned to the analogue input and the
previous configuration will be lost.
•
The currently assigned configuration is displayed in upper-case letters.
Summary of Contents for VAR12
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