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Chapter 8: Installation 8-7
Cable Runs
8.4 Cable Runs
Consider the following before installing the system cables:
• You need to attach the power cable and the scanner cable. Additional
cables will be required if you are installing an integrated system.
• All cables should be adequately secured, protected from physical damage
and protected from exposure to heat. Avoid running cables through bilges
or doorways, or close to moving or hot objects.
• Acute bends must be avoided
• Where a cable passes through an exposed bulkhead or deckhead, a water-
tight feed-through should be used.
• Securecablesin placeusing tie-wrapsor lacing twine.Coil any extra cable
and tie it out of the way.
You need to run the following cables:
• Power/NMEAInput cable,suppliedwith the displayunit.This has acon-
nector plug at one end for connecting the display unit, and 7 wires at the
otherend forconnectingthe powersupplyand optional NMEA inputs (see
Section 8.8, Integrated Systems).
CAUTION:
Do not pull the cable through the bulkheads using a cord attached to the
connector.This could damage the connections.
• Inter-unit cable,suppliedwiththescannerunit.ThisisVinyl-coveredand
shielded,witha connectorplugatoneendforconnectingtothe displayunit
or extension cable.
• SeaTalkcable, optional, with SeaTalk connector(s) at one or both ends.
•
hsb
2
cable, required for multi-display systems.
• NMEA Output cable, optional, with an NMEA OUT connector at one
end only.
Power Cable
The display system (i.e. with a scanner connected where applicable) is
intended for use on ships’ DC power systems rated as follows:
12 V or 24 V systems Radome Scanner System
12 V, 24 V or 32 V systems 4 kW Open Array Scanners System;
RC520
24 V or 32 V systems 10 kW Open Array Scanners System
A 5 ft. (1.5 m) power cable is supplied for connecting the ship’s DC power to
the display unit. Longer power cable runs may require larger wire gauges to
81186_3.book Page 7 Thursday, August 22, 2002 8:23 AM