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Commercial Audio Series Business Music System
page 10
Operation Manual
2.4 Choose Output Wire and Connectors
Amplifi er Output Connections: Crown recommends using
pre-built or professionally wired, high-quality, two-conductor,
heavy gauge speaker wire and connectors. You may use crimp-on
spade lugs for your output connectors. Slip the cable lugs under
the output screw terminals and tighten (Figure 2.7). To prevent the
possibility of short-circuits, wrap or otherwise insu late exposed
loudspeaker cable connectors. Cover the output connections with
the supplied non-touch cover.
Using the guidelines below, select the appropriate size of wire
based on the distance from amplifi er to speaker. The wire sizes
apply to the 4-ohm tap.
Distance Wire Size
up to 25 ft. 16 AWG
26-40 ft. 14 AWG
41-60 ft. 12 AWG
61-100 ft. 10 AWG
101-150 ft. 8 AWG
151-250 ft. 6 AWG
NOTE: Custom wiring should only be performed by
qualifi ed personnel. Class 2 wiring is required.
CAUTION: Never use shielded cable for output power
wiring.
Use 2-conductor shielded cable and a 3-pin Phoenix-type
con nector for Preamp Line Output (Figure 2.7), and for MOH 1V
or 1W output (Figure 2.8).
Use 1-conductor shielded cable and RCA plugs for the Stereo
Line Out connector and the MOH 1V Line Output RCA Connector
(Figure 2.9).
Figure 2.7 Connections to the Preamp
Line Out Connector
Figure 2.8 Connections to the MOH Line
Output Phoenix Connector (1V or 1W
Con nector)
Figure 2.9 Connections to the Stereo Line
Out Connector and the MOH Stereo Line Out
Connector
Music-On-Hold Connections
You can play music from the XM radio over your phone line
while the caller is on hold. Use one of the connectors below
to connect the 180MAx to the Music-On-Hold input on
your telephone system interface/PBX.
• MOH 1V Line Output Connector: 3-pin Phoenix
connector, 600-ohm transformer-isolated output, provides
Music-On-Hold signal of approximately 1 volt. See Figure
2.9.
• MOH 1W Line Output Connector: 3-pin Phoenix
connector provides Music-On-Hold signal of approxi-
mately 1 watt. See Figure 2.9.
• MOH 1V Line Output RCA Connectors:Two RCA
connectors (mono) for 1-volt Music-On-Hold output (in
parallel with 600-ohm connectors, so they are isolated).
See Figure 2.10.
AMPLIFIER OUTPUTS
Figure 2.6 Amplifi er Output Connections
-
To telephone system
interface/PBX input
To stereo
line-level
input
To telephone system
interface/PBX
2 Setup