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The power leads should normally be routed to the ship’s DC power distribution panel
on larger boats. The RAY430 is fused at 10 amps so connection to a 10 amp or
(maximum of) 15 amp circuit breaker is recommended. On smaller vessels the power
leads may be connected directly to the main battery, isolation switch, or circuit breaker.
For best noise isolation from other shipboard electronics avoid grouping the loudhailer
power connections with radar, radio, or echo sounder power leads together on the same
circuit breaker.
Although the RAY 430’s power consumption is only 65 watts (maximum), if you find
that the power cable leads need to be extended more than 10 feet, the wire size of the
leads should be in-creased accordingly to minimize line losses. For runs of 20-35 feet
#12 AWG is recommended, remember to always solder all connections on all your
power cord additions.
Observe proper polarity! The wire connected to the positive (+) terminal must be
connected to the positive point of the DC power source; The wire connected to the
Negative (—) terminal of the terminal strip must be connected to the negative point of
the DC power source. If the power leads are accidentally reversed, the 10 Amp fuse will
blow. If this happens, recheck the polarity of the connections with a voltmeter (VOM)
and, if necessary, reverse the leads for proper connection. Then replace the 10 amp fuse
in the power cord.
2.5.2 Intercom Speaker
Up to four intercom station speakers (optional) can be connected to the intercom
speaker terminals labeled IC1-IC4 on the terminal block. The optional intercom
speakers M95998 are 8 ohms and in-dude “CALL buttons. Stations 1, 2, 3 and 4,
should be connected to the terminal block accordingly so that they will correspond to
the desired Intercom station selections.
Connect one of the speaker lines to terminal 2, the other line to the GND terminal (on
the right side of the terminal block). The “callline should be connected to the terminal
1.
Figure 2-5
2—6
14


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