GAI-Tronics 702-002 Single Party 24 V DC Amplifier Enclosure - Manual (Page 7)

Pub. 42004-147H
Model 702-002, 732-102, and 733-002 24 V DC Single-Party Amplifier Enclosures Page 7 of 12
f:\standard ioms - current release\42004 instr. manuals\42004-147h.doc
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Wiring
Attach conduit to the enclosure. Feed the wiring through the conduit, and bring it into the enclosure. See
Figure 4. Follow the wire colors carefully, because the colors correspond to GAI-Tronics 60038 Series
cable. The wires must be spade-lugged and connected carefully and completely to the terminal block.
An improper termination may diminish station performance.
Local Muting
Figure 7 illustrates local speaker muting when stations are completely assembled and paging operation
occurs. Normally, when the station push-to-page button is pressed, the paging speaker connected to that
station is silenced (muted) to prevent acoustic feedback to the handset microphone. However, while the
handset is in use for party line conversations, the paging speaker is “live” to enable paging calls from
other stations.
To disable the mute feature, follow these instructions:
1. Locate the lugged violet wire attached to terminal point 7 (mute) on the terminal block within the
enclosure.
2. Transfer the lugged violet wire to terminal point 8 (Page L1).
After any muting changes are made, unpack the station amplifier and install.
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.
The following steps mutually mutes 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.