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Chapter 5: Installation 5-13
If a longer power cable run is required, use the supplied power cable to
connect to the unit, then use a suitable connector block to connect the free
end to the extension cable. The supplied power cable has a cross-section
of 2.0mm
2
(15 AWG).
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 5-1.
The DC power and NMEA inputs/outputs should be connected to the
POWER/NMEA connector at the rear of the Plotter. The connector pin
functions are detailed in Table 5-2.
Table 5-2: Power/NMEA Connections
Table 5-1:Maximum Power Cable Extension Lengths
Power Cable Core mm
2
:
1.5 2.0 2.5 4.0 6.0 10.0
Equivalent AWG: 16 15 14 12 10 8
Maximum Extension (feet): 36 49 65 98 147 230
Maximum Extension (meters): 11.0 15.0 20.0 30.0 45.0 70.0
Function Color
Battery negative Black
Battery positive Red
NMEA data input (+ve) White
NMEA input (-ve) -common Green
Not connected Gray
NMEA data out Yellow
NMEA Data output common Brown
Not connected Screen