Raymarine Raychart 425 Owner's Handbook Manual page 93

5-12
suitable connector block to connect to the extension cable. The supplied
power cable cores have a cross-section of 2.0mm
Longer power cable runs may require larger wire gauges to minimize any
voltage drop in the cable. In order to determine the correct supply cable
size if the power cable must be extended, estimate the length of cable
between the vessel's main power source and the connector block, then
select the wire size determined by the distance as indicated in Table 5-2 .
Power Cable Core mm
Equivalent AWG:
Maximum Extension (feet):
Maximum Extension (meters):
The DC power and NMEA inputs/outputs should be connected to the
POWER/NMEA cable at the rear of the chartplotter. The cable colors are
detailed Table 5-3 .
Function
Battery negative
Battery positive (10.0VDC to 18.0VDC)
NMEA input (+ve)
NMEA input (-ve) common
Not connected
NMEA output (+ve)
Data output (-ve) common
Not connected
➤
Connect to the power supply using the power cable supplied:
1. Connect the moulded connector to the POWER/NMEA connector on
2. Cut the cable to length and connect the red wire, via a 1A quick blow
Table 5-2: Maximum Power Cable Extension Lengths
2
:
Table 5-3: Power/NMEA Cable Colors
the rear of the chartplotter. Run the free end back to the vessel's distri-
bution panel or, if insufficient cable length, to a junction box.
fuse or circuit breaker, to the +ve battery terminal and the black wire
to 0V (-ve battery terminal).
Raychart 425 Chartplotter
(15 AWG).
2
1.5 2.0 2.5
16 15 14
36 49 65
11.0 15.0 20.0
Color
Black
Red
White
Green
Gray
Yellow
Brown
Screen
4.0 6.0 10.0
12 10 8
98 147 230
30.0 45.0 70.0