Pub. 42004-703L2A
Model 707-001-EX-F07045 SmartSeries Hazardous Area Speaker Amplifier Enclosure
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Wiring
Attach the conduit or cable glands to the enclosure. Feed the wiring through these and bring it into the
enclosure. Attach the wires to the terminal blocks located behind the amplifier bridging plate. Follow the
wire colors carefully because the colors correspond to GAI-Tronics cable. The wires must be spade-lugged
and connected carefully and completely to the terminal block. An improper termination may result in
diminished station performance. See Figure 6.
CAUTION
For safe operation, connect terminal 3 of TB1 to system ground.
Mutual Muting
In the event that feedback occurs within an area and repositioning of the system speakers does not help,
mutual muting may be used to correct this problem.
Use the following steps to mutually mute adjacent amplifiers/handsets within a zone.
1.
Ensure that the purple lugged wire is connected to terminal 7 of TB1.
2.
Connect terminal TB1-7 of the handset station to TB1-7 of the station within the zone that is causing
feedback. This is done by using the spare system wire (orange conductor) from within the system
cable that runs between the stations.
