ASL INTERCOM V400 - Page 5

V400 – Installation Guide
U-0398-0607.doc – Issue: 03 complete, approved
Page 5 of 24
1
Amplifier Module Indicators
Indicator Type Indication
supply Green LED Indicates that power is present at the amplifier.
select Green LED
Illuminates to indicate that the amplifier is selected for commissioning or audio
monitoring by the system.
In the case of a standby amplifier it illuminates to indicate that the standby is in use.
fault Amber LED
Illuminates steadily to indicate that an amplifier module and/or loudspeaker line
fault has been detected. These faults are also indicated by the mainframe ‘fault’ LED.
0 dB Green LED Illuminates at approx. 90 V RMS output.
-20 dB Green LED Illuminates at approx. 10 V RMS output.
-40 dB Green LED
Illuminates at approx. 1 V RMS output.
This LED illuminates when the surveillance tone level is correctly set on the Router
output connected to the amplifier.
2
Mainframe Indicators
Indicator Type Indication
mains Green LED Indicates that the AC mains is present and the unit is switched on.
battery Green LED Indicates that the DC power is present and the unit is switched on.
aux Green LED
Indicates that auxiliary DC power is available at the rear panel AUX OUT terminals
and that the AUX OUT fuse is intact.
processor Green LED Flashes to indicate that the processor is operational.
comms Green LED Illuminates to indicate communication activity on the CAN bus.
fault Amber LED Illuminates if a fault is diagnosed.
Mainframe Controls

These controls are only accessible by removing the front panel. This is to prevent inadvertent or
unauthorised disablement of the unit.
Control Function
3
Mains Isolation Switch
This switch connects or disconnects AC mains power to or from the unit.
4
Battery Isolation Switch
This switch connects or disconnects DC power to or from the unit.
!
!
Under normal circumstances these isolation switches will be left in the ON position.
Both the mains and the isolation switches should be switched off in order to disconnect power from
the mainframe, for example when an amplifier module is to be inserted or removed.
5
Mainframe Address
Switches
The amplifier mainframe connects to the Router via a CAN bus requiring a unique
identifier. These two rotary switches set this identifier to the mainframe.
The valid mainframe address range is 01 to 63.