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Chapter 2: Installation 13
2.6 System Connections
The rear of the display unit provides the following connection sockets:
• Transducer connection.
• Power, for 12 VDC power connection and NMEA connection.
Figure 2-5: DS400/500 Connector Panel
The following sections detail the connectors used when installing the
DS400/500.
DC Power Connection
The DS400/500 is intended for use on the boat’s DC power systems rated
from 10-18 Volts DC (13.8V nominal).
The power connection to the unit should be made at either the output of the
battery isolator switch, or at a DC power distribution panel. Raymarine
recommends that power is fed directly to the DS400/500 via its own
dedicated cable system.
A 2 amp, fast blow fuse is attached (in-line) to the red (positive) wire.
A 5 ft (1.5 m) Power/NMEA cable is supplied for connecting the boat’s DC
power to the unit. The Power/NMEA cable may be extended by up to 60 ft
(20 m) using a wire gauge of AWG 12 or greater.
DC power is connected at the seven-pin Power/NMEA connector on the
unit’s connector panel. The connector (viewed from the outside) and pin
functions are shown in the following diagram and table.
f
D6459-1
Power/NMEATransducer
D6462-1
pin1