Pub. 42004-442D
Models 10959-903 and 10959-904 Wall-Mount Audio Messenger Interface
Page 5 of 17
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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.
Figure 2. Internal Wiring Connections
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.