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6 Ray54E VHF Radio
2.3 Power Connections
The red and black Power Cord provides connection to DC power. The red (+)
wire contains a 7 amp in-line fuse. It should be connected to the positive
terminal of the power source. The black (-) wire should be connected to the
negative (ground) of the power source. Check the polarity with a VOM
(Voltage/Ohm Meter) and reconnect observing correct polarity. If the fuse
ever needs to be replaced, be sure to use the same type and rating.
Connect the stripped wires on the Power Cord to the nearest primary source
of the boat's DC power. A typical source would be a circuit breaker on the
power panel or a fuse block near the unit. The circuit breaker or other in-line
fuse should be rated at 10 amps. The power cord should be long enough to
reach the DC power source. If additional wire length is required, the cable
can be extended by adding more cable as necessary. However, for power
cable runs longer than 15 feet, larger wire diameter size should be used to
prevent voltage line loss. To ensure adequate current draw to the equipment,
Raymarine recommends that you use lugs to connect the power cable to the
DC supply and that the lug connections be both crimped and soldered. The
connection terminal should be clean, with no sign of corrosion.
After the cord is connected to power, slide the bullet connectors on the Power
Cord into their mates (with the same coloured wire) on the rear of the radio.
(See Figure 2-3 .)
The Ray54E is designed to be operated on a 12 volt (nominal) system. If
battery voltage drops below 10.5 VDC (approximately), the icon
appears on the LCD (see page 15). Discontinue using the radio if a low
voltage condition occurs as performance would be unreliable. If voltage
exceeds 16 VDC, the message EXCESSIVE VOLTAGE appears on the dot matrix
display and an alarm is sounded. Immediately disconnect the radio if a high
voltage condition occurs as the unit could become damaged.
Figure 2-3: Wiring Connections