19
A.3 Installing The Systems
Controller And External
Protection Circuit Harness
1. Install the systems controller in its rack. Refer to
Section 5 for AC and audio connections.
2. Make sure power to the entire system is off.
3. Check the length of the external protection
circuit harness. It should reach from the
systems controller to the speaker terminals on
the amplifier powering the AWCS II loudspeaker.
Allow at least 6” slack.
If necessary, trim the cable to length. If the
cable is too short, connect additional cable. Use
well-insulated in-line crimp on cable splices.
NOTE: Bose
®
recommends attaching the external
harness to a banana plug, if possible. Or, strip and
twist the wires for insertion into the speaker terminal
lug holes.
4. Attach the external harness to the internal
harness connector on the rear of the controller
(Figure 28). Turn the notch on the harness to the
right to attach it to the connector.
5. Hand tighten the lock nut on the external
harness.
6. Connect the other end of the harness to the
speaker terminals with screw lugs (Figure 29a)
or a banana plug (Figure 29b). Connect the
red wire to the positive terminal. Connect the
black wire to the negative terminal. (Note that
these illustrations show typical amplifier speaker
terminals for bridged mono mode.)
Figure 28
Attach the external harness to the internal harness connector on rear of controller.
Figure 29
Connection of the external harness to speaker
terminals (amplifier in bridged mono mode).
29a
29b
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