Wiring
changed short
circuit at
card n
There is a short circuit on loop
n
(Card n) wiring.
Identify the device where a
cable fault has occurred and
rectify the fault.
Interface
input OC or
SC
There is an open or short circuit
on the input line of an interface.
Locate and rectify the wiring
fault. Ensure the end-of-line
device is connected in the
circuit.
Device Mains
failed
There is a mains supply failure at
an interface unit or a mimic panel.
Check the mains fuse and
mains supply to the equipment.
Device
Battery fault
The battery supply at an interface
unit or mimic panel has failed the
load test.
Check the battery and replace
it if necessary.
22
Operating instructions
Fault
Fault
Fault
Fault
