Raymarine DSM250, Owner'S Handbook Manual

Page: 26 / 122

2-6 DSM250 Digital Sounder Module
• Where a cable passes through an exposed bulkhead or deckhead,
a watertight 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 cable , supplied with the unit. This 10 ft (3 m) cable has a
connector plug at one end for connecting to the sounder module,
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 DSM250 is intended for use
on ships’ DC power systems rated from 10.7 V to 32 V.
• HSB cable , supplied with the unit. This 10 ft (3m) cable is used to
connect the DSM250 to the display unit. Other lengths of HSB
cables are available from Raymarine. See
Table 2-1 Parts and
Accessories on page 2-4 .
• Transducer cable , supplied with the transducer. This 30 ft (10 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. For details, see document number
81196,
Transducers for Fishfinders Owner’s Handbook.
WARNING:
Do not cut the transducer cable or remove the connector.
Do not try to shorten or splice the cable. Cutting the
transducer cable will severely reduce sonar performance.
If the cable is cut, it must be replaced—it cannot be repaired.
Cutting the cable will also void the warranty.