M/A-Com Orion, Installation Manual

Page: 59 / 80

5. After installing the Auxiliary Control Unit in the normal fashion, connect
the Dual Control Cable (P1) to the Auxiliary Control Unit and tighten the
jackscrews.
6. Connect the accessory cable (19B802554P6) to the Auxiliary Control
Unit. Connect either the accessory cable (19B802554P6) or the extended
option accessory cable (19B802554P7) to the Main Control Unit as
appropriate.
7. A yellow ignition sense lead is provided on each control cable. If the
“Ignition Sense” feature is enabled on the radio unit, it is necessary to
connect only one of the yellow leads provided, whichever is convenient.
Tape back the unused yellow lead. See page 24 for details.
8. Install the speakers in convenient locations near each control unit.
NOTE
Parallel Audio Installation Requirements
In special configurations that require both speakers to operate
at the same time (simultaneous audio), install the speakers for
parallel audio operation.
For wiring information, refer to the Parallel Audio Setup
Insert section of Figure 46 and Figure 47. Perform the
following steps to install parallel audio speakers:
1. Use the two 8
Ω
speakers, part number 19A149590P12,
in place of the two 4
Ω
speakers, part number LS
102824V1.
2. Hardwire each speaker directly (without relays) as shown
in Figure 46 and Figure 47.
It is very important to use the correct speakers for this
application. Wiring 4
Ω
speakers in this configuration may
cause damage to the radio.
9. Install a relay (19A149299P1) from the kits supplied at a location near
the leads from each speaker. Use the #8 x 3/4
”
sheet metal screw and nut
plate supplied with each kit for mounting.
10. At a convenient point, cut one of the wires in each of the 2-wire speaker
cables, spread the leads, and strip the ends. (Crimp a ¼ ” tab receptacle to
each end.)
11. Main Control Unit Speaker: Connect the lead nearest the speaker to Pin
87 of the relay. Connect the lead nearest the connector to Pin 30 of the
relay. Connect the speaker connector to the accessory cables P2. Refer
to Figure 46 and Figure 47.
12. Auxiliary Control Unit Speaker: Connect the lead nearest the speaker to
Pin 87A of the relay. Connect the lead nearest the connector to Pin 30 of
the relay. Connect the speaker connector to accessory cables P2. Refer
to Figure 46 and Figure 47.
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