Splicing The Transducer Cable - Simrad ES120-7C Installation Manual

Split-beam transducer

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Splicing the transducer cable

If you need to cut or lengthen the transducer cable, you must splice it correctly. This is very

important, as any splice is very vulnerable for noise.

Cable can be spliced by two different methods:

• Splicing using a grounded junction box

• Splicing using a junction box that is isolated from vessel's ground

The following items are required.

• A metal junction box with cable glands designed for electromagnetic compatibility (EMC).

The junction box must contain a suitable terminal block. The terminal block must provide

solid fastening of the cable ends as well as sufficient insulation between the wires.

• The necessary length of transducer cable.

The cable between the junction box and the transceiver must be supplied by Kongsberg

Maritime, and this must be the same type as used on the transducer.

Electrical installations can only be done by certified electricians. All necessary tools and

instruments required must be available. The installation shipyard must prepare detailed

drawings of the electrical system, and identify each cable.

You must be equipped with a standard set of tools. This tool set must comprise the normal

tools for electronic and electromechanical tasks. This includes different screwdriver types,

pliers, spanners, a cable stripper, a soldering iron, etc. Each tool must be provided in various

sizes. We recommend that all tools are demagnetized to protect your equipment.

Note

Do not solder the wires together with only electrical tape for insulation. This will result

in electrical noise and reduced operational performance.

Ksv-204580