Document ViOD00121/rev2/jk
Page 6 of 8
4.3
Additional Functions
4.3.1
Buzzer Volume Control
There is a potentiometer on the rear of the PCB labelled Sounder volume turning it anti clockwise
reduces the volume.
4.3.2
Volt Free Relay
The controller has an on board volt free relay C, No contact rated at 1A @30vdc. The relay operates
whenever a call is present. This can be used to signal ancillary equipment such as sounders or beacons.
An external power supply would be required for this purpose.
4.3.3
Optional Battery backup link
There is a jumper link this should be left in place, if battery backup is required contact Vox Ignis for
details of the optional battery pack required.
4.4
System Operation
4.4.1
Raising the Alarm inside the WC
The person in distress raises the alarm by pulling on one of the red pull cord bangles, the blue indicator
on the ceiling plate will indicate steady blue and the blue indicator flash and sounder will activate on the
cancel plate.
4.4.2
Indication outside the WC
The overdoor indicator plate will flash and sounder will activate to show the location of the alarm, the
ViAC-1ZC controller should be located within a permanently staffed area. The blue indicator will flash
and the sounder will activate on the controller to alert staff of an alarm.
4.4.3
Acknowledging the alarm
A member of staff acknowledges the alarm by pressing the Accept button on the controller, the blue
indicator will change state from flashing to steady and the internal sounder will sound intermittently
every 15 seconds. The ceiling pull cord indication will extinguish, the blue indicator on the cancel plate
and the overdoor indicator changes state from flashing to steady with intermittent sounder operation
every 15 seconds to confirm to the occupant that help is on the way.
4.4.4
Resetting the system
When the call has been attended to the alarm is reset by pressing the cancel button within the WC.
