7
After installing the audio repeater and bracket, three connections are required:
•
Audio input (or output)
•
Power (24 VDC)
•
Supervision (fault) loop
The audio repeater is designed for low level audio signals. It must be interfaced
at the 1 V p-p level. The source of the low level audio is usually the output of an
audio controller card (562-894). Using the interconnect harness supplied, cut
the harness to length. The cable needs to be stripped and installed into
Terminals 4 and 5 of the audio terminal strip on the audio repeater. The shield is
not used. Cut it off close to the jacket of the cable. The 3-pin connector on the
other end of the cable is installed either at the audio controller output, or as part
of the daisy-chained loop from the last amplifier in the loop.
Reference Figure 4 on Page 8 for wiring connections.
As with the master audio repeater, the slave audio repeater must be interfaced at
the 1 V p-p level. The destination of the low-level audio may be one of three
possible locations:
•
The input to a 25 W amplifier
•
The input to a 100 W amplifier
•
The network input to an audio controller
Using the shielded interconnect harness supplied, cut the harness to length. The
cable needs to be stripped and installed into Terminals 1 and 2 of the audio
terminal strip on the audio repeater. The shield is connected to Terminal 3 of the
audio terminal strip on the audio repeater. For connection to an amplifier, the
3-pin connector on the other end of the cable is installed at the input of the first
amplifier in the loop. If connecting to an audio controller network input, the
connectors at both ends of the cable need to be cut off and the wires stripped.
Connect the black and white wires to TB2-1 and TB2-2 of the audio controller
network input.
Reference Figure 5 on Page 9 for wiring connections.
Continued on next page
Internal Wiring Connections
Introduction
Master Audio Repeater Audio
Input
Slave Audio Repeater Audio
Output
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