Raymarine E120W, Installation Manual

Page: 35 / 58

Chapter 3: Installation 29
Extension cable
If an extension power cable is required, please note the following:
• The wire gauge used may be affected by the scanner type.
• To minimize voltage drops, use large gauge cable.
• Use the supplied power cable to connect to the display unit. Then use a suitable
connector block to connect the free end to the extension cable, taking particular
care to ensure the correct polarity.
• The maximum length of an extension cable is dependent on the multi-strand cable
being used and the voltage of the system:
Note: For further information on power extension cables please refer to the relevant scanner
handbook or relevant product pages on our website .
Fuse, circuit breaker and switch ratings
Do not fit switches or circuit breakers in such a way that power may be removed from
part of the E-Series networked system while leaving the rest of the system running, as
this may result in unit malfunction.
SeaTalk/Alarm out cable
The SeaTalk cable is supplied with stripped tails. These should be connected to your
existing equipment using either the cable splicers supplied or by using a standard
screw terminal block.
Extension power cable
mm
2 1.5 2.0 2.5 4.0 6.0 10.0
AWG
16 15 14 11 10 7
Length (m)
12V system
not
recommended
2 3 7 9 17
Length (m)
24V system
not
recommended
32 41 50 50 50
Radar scanner? Device Rating
No
with fuse 6.3 amp anti-surge fuse
with isolator switch 10 amp
with thermal circuit breaker 5 amp
Yes Refer to the fuse notification in the scanner handbook.