Installation manual

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SIMPLEX Fault Assistance Guide RevA
29 April 2009
5.7 PA Speech, Spare Speech, WIP Speech, Comms
and Spare Comms Cable Faults
PA Speech Cable Faults, Spare Speech Cable Faults, and WIP Speech Cable Faults refer to
the connections between SPIF cards and Secondary ECPs and equipment racks (remote
units). As can be seen in the Figure below, the PA Speech, Speech Backup, and WIP Speech
terminals will correspond to the respective Fault on the ECP System Fault Display.
NOTE:
Any WIPS Module Failure or WIP Speech cable fault will activate ‘WIP SYSTEM
FAULT’ LED on the ECP System Fault Display
. The LED will flash while
unacknowledged and be steady for a latched or acknowledged fault.
SPIF9506/SPIF9709 Wiring Diagrams
Comms Cable Faults and Spare Comms Cable Faults on the ECP System Fault Display are
related to the loss of communications between SPIF interfaces. The COMMS BUS and
COMMS BACKUP terminals on a SPIF card (shown above) are relating to Comms Cable
Faults and Spare Comms Cable Faults, respectively.