GAI-Tronics 10959-904 Manuel - Page 7

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Models 10959-903 and 10959-904 Wall-Mount Audio Messenger Interface

Field Wiring

1. Route all necessary cabling through conduit(s) and into the enclosure.

Allow adequate cable lengths to reach the terminal blocks.

2. Terminate all field wiring following the instructions below.

3. Reconnect the front cover to the rear enclosure by pushing the hinge pins on the front cover into the

rear enclosure until a click is heard.

4. Re-install the cable connections between the front cover and the rear enclosure.

5. Rotate the front cover to close the enclosure and tighten the four screws on the front cover.

Audio Output

Terminal block TB3, labeled AUDIO, is located on the termination PCBA. Connect the 600-ohm

balanced audio output terminals TB3-1 and TB3-2 to a public address system (central amplifier input,

amplified addressable speaker input, etc.). Use shielded pair conductors when connecting audio to any

public address system component.

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Figure 2. Internal Wiring Connections

Pub. 42004-442D

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