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8 DS400 and DS500 Digital Fishfinders
2.4 Cable Runs
Consider the following before installing the system cables:
• You will need to attach the power and transducer cables.
• All cables should be adequately secured, protected from physical dam-
age, and protected from exposure to heat.
Avoid running cables through bilges or doorways, or close to moving or
hot objects.
• Sharp bends must be avoided.
• Where a cable passes through an exposed bulkhead or deckhead, a water-
tight feed-through should be used.
• Secure cables in place using tie-wraps or lacing twine. Coil any extra
cable and tie it out of the way.
You will need to run the following cables:
• Power/NMEA cable, supplied with the unit. This 5 ft (1.5 m) cable has
a connector plug at one end for connecting to the fishfinder, and 3 wires at
the other end for connecting the power supply. The power cable may be
extended by up to 60 ft (20 m) using a wire gauge of AWG 12 or greater.
The DS400/500 is intended for use on the boat’s DC power systems
rated from 10-18 Volts DC (13.8V nominal).
• Transducer cable, supplied with the transducer. This 25 ft (8 m) cable
has a connector plug (with an outer nut that you must attach) at one end
for the display unit or extension cable. The transducer cable may be
extended up to a maximum of 60 ft (20 m) using optional extension
cables.
Cutting the transducer cable will severely reduce sonar performance:
• Do not cut the transducer cable or remove the connector.
• Do not shorten or splice the cable.
If the cable is cut, it must be replaced—it cannot be repaired.
Cutting the cable will also void the warranty.