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5.1.2 AUDIO SIGNAL CONNECTION
CobraNet™: Skip to Section 5.2 if using CobraNet™ for distribution of
the audio and control signals.
Audio A
or
Audio B: 2-conductor twisted pair, shielded, audio cable connected
to supplied 3-pin Phoenix Contact Terminal Plug and to
the line level audio signal source.
Nominal level: 0 dBu / 0.775 V rms.
Recommended Conductor Gauge:
24 AWG to 18 AWG / 0.2 mm to 1 mm
Audio A
and
Audio B: As above but 4-conductor twisted pairs
5.1.3 COMPUTER CONTROL CONNECTION
CobraNet™: Skip to Section 5.2 if using CobraNet™ for distribution
of the audio and control signals.
EIA-485
(formerly
RS-485): 2-conductor twisted pair, shielded, cable connected to supplied
3-pin Phoenix Contact Terminal Plug and to EIA-485 port
for the computer.
Recommended Conductor Gauge:
24 AWG to 18 AWG / 0.2 mm to 1 mm
NOTES:
1. Do not combine EIA-485 and audio signals in the same cable.
2. An EIA-485 converter is required to convert a PC’s RS-232 or USB
port to a 2-wire EIA-485 port. While there are many converter
products available, contact EAW’s Application Support Group (See
Section 7.3) for recommendations about suitable models.
3. EIA-485 cabling has special requirements and limitations. See
Appendix 8.3 for details.
5.1.4 DAISY CHAINING COMPUTER AND AUDIO SIGNALS WITHIN CLUSTERS
WITH MULTIPLE LOUDSPEAKERS
NOTE: The Signal Link jacks carry both computer and audio
signals. The cable between the Signal Link jacks must be
wired as a standard Ethernet crossover cable. A cable wired as
a standard Ethernet straight through cable will not work.
1. Up to 1 ft / 0.3 m between adjacent over/under loudspeakers in a cluster:
Supplied Cat-5 Signal Link Cable
Connect between unused Signal Link jacks (Neutrik EtherCon) on
vertically adjacent ends of the loudspeakers.
2. Up to 2 ft / 0.6 m between adjacent side-by-side loudspeakers in a cluster:
User-supplied Cat-5 crossover cable.
Connect between unused Signal Link jacks (Neutrik EtherCon)
on horizontally adjacent ends of the loudspeakers.
17
LINK CABLE
P/N 0005854
Figure 5.1.4 Linking < 1 ft / 0.3 m
AUDIO +
AUDIO –
SHIELD
SIGNAL+
EIA-485
SHIELD
Figure 5.1.2 Audio A & Audio B
Figure 5.1.3 EIA-485 Connector
Crossover Cable Wiring
STANDARD END PINS 1 2 3 4 5 6 7 8
CROSSOVER END PINS 3 6 1 4 5 2 7 8