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1.8 Junction Box (option)
1.8.1 Mounting considerations
The junction box forms a joint between the distribution box and the transceiver unit, and it is
designed to be mounted on a bulkhead. Install it referring to the guidelines below.
• Keep the junction box away from noise-emitting electrical machinery, for example, electric
generator, radio transmitter, TV, etc.
• Although the box is splashproof, do not install it in places of high humidity.
• Avoid installing the box where temperature varies greatly, since moisture may penetrate the
box.
• The box is generally installed above the draft line of the ship and the transducer cable is run
inside steel conduit. This permits replacement of the transducer without dry docking. Even if
the junction box is installed below the draft line, the conduit is necessary to minimize picking
up of noise. If use of conduit is not possible, install the box as near to the transducer as
possible.
Procedure
Open the box cover, and fix the unit to a bulkhead, referring to the outline drawing at the back of
this manual.
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