Installation
9390 Reference manual 2-11
9390 front and extended control 12V systems are supplied
with 6-metre power cables. 9390-H receiver-exciter 24V 400
watt systems are supplied with 2-metre power cables. If a
supplied cable is too short, a larger cable size must be used
replacing the existing cable. Refer to the following table.
Maximum
distance from
power source
12V system cable
size
24V 400 watt
system cable size
6 metres Use supplied cable 16mm
2
(7/1.7mm)
9 metres 16mm
2
(7/1.7mm) 25mm
2
(19/1.35mm)
18 metres 25mm
2
(19/1.35mm) 50mm
2
(19/1.78mm)
Protect all cables from sharp edges and mechanical abrasion.
We recommend that you fit a suitable cartridge fuse in the
active wire close to the battery or main isolating switch. This
protects the power cable and your vessel from risk of fire
should damaged insulation cause a short circuit. Use a 32A
fuse for a 12V system (accessory code 711) or a 50A fuse for
a 24V, 400 watt system. Do not use normal glass in-line
automotive fuses as these cause too high a voltage drop
during transmission.
A qualified technician should check your installation before
power is applied to the transceiver.
In extended control installations where the power and control
cables are long and follow a common path, keep the cables
separated by at least 200mm. The cables can be closer
together for short distances, for example, to pass through the
same hole in the bulkhead.
Failure to observe this warning can cause distortion of the
transmitted audio signals.
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