Installation Instructions

Mounting/Installation
Install system fault relay output
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4.23 Install system fault relay output
The PC1001-A3 and PC1002-A3 Cerberus PACE Compact digital audio matrix
boards both provide a dedicated potential free system fault relay connector. This
connector lies in the inputs/outputs area on the lower left side of the board.
The relay is activated in the regular operating mode. The relay is released in case
of a fault.
The relay contacts can switch a voltage of up to 48 V.
Fig. 32: System fault connector
System fault connector
Pin
Description
Remark
Function
1
NC
Normally closed
Connected to C during a fault
condition
2
C
Common
Middle contact
3
NO
Normally open
Connected to C in the regular
operation
Table 27: System fault connector