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ComNav Vector G2 & G2B Installation & Operation Installation
Document PN 29010078 V2.0 - 27 -
DRAFT #3 – 29 May 2009
Cable Colour Codes
Cable Marking: 051-0157-002 (15 metres), 051-0158-001 (30 metres)
Wire Colour Signal Description
Red 1 n/a Power Input
Black 1 n/a Power Ground
Blue RS-232, Tx Port A Transmit
Black, Blue stripe RS-232, Rx Port A Receive
Black, Green stripe RS-422, ‘A’
Green RS-422, ‘B’
Port A Transmit
Brown RS-232, Tx Port B Transmit
Black, Brown stripe RS-232, Rx Port B Receive
Yellow, Black stripe RS-422, ‘A’
Yellow RS-422, ‘B’
Port B Transmit
Grey RS-232, Gnd Signal Ground
White n/a Alarm Output Pin 1
White, Red stripe n/a Alarm Output Pin 2
Bare Wire 2 n/a
Drain for RF Shielding
!! DO NOT CONNECT !! e
Table 2 – Cable Colour Codes
1 The Power Input & Ground (Red, Black) wires are 18 AWG; all the other
insulated wires are 24 AWG.
2 The Drain wire on the 30m cable is insulated with black heat-shrink.
e The Drain wire should never be connected – see page 29.
Caution! The coloured “stripe” shown above is either repeated bands of
the colour, or a thin spiralling stripe. The stripe can be very hard to
see (especially the Blue, Green & Brown stripes, all on Black
backgrounds); please inspect the wires carefully, under a good light,
to be sure you are using the right wires!
Note: there were two earlier generations of the Vector G2 & G2B. The
earlier generations used slightly different colour-coding in their
standard cables, & had different cable markings, than shown above.
The older cables can be used with the current generation, with some
cautions; see Differences between Cables in Appendix 3 on page 91
for details.
Power Input
A 3 Amp fast-blow fuse or circuit breaker (not supplied) should be installed in series with the
Power Input wire. An in-line On/Off switch (not supplied) capable of handling 3 Amps should
also be installed (if a breaker is installed, it may be permissible at your locale to use it as the
On/Off switch).
The breaker/fuse/switch and all the power wiring must be done in accordance with the
applicable electrical safety standards for “low-voltage DC” wiring at your locale.
Caution! The Vector G2’s power supply is protected against reverse
polarity power input – but the G2 will not operate with reverse polarity.
Note: the G2’s power supply is isolated from all the data communication
lines. As well, the plastic enclosure isolates the G2’s circuitry
galvanically from the vessel – which helps reduce hull electrolysis
problems.
www.busse-yachtshop.de | info@busse-yachtshop.de
29


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