C-Nav 2050M User Manual - page 45
C-Nav2050 User Guide
(P/N: 4250005-10) is an optional 10ft (3m) unterminated
power cable fitted with a LEMO plug type with red strain
relief. The wiring color code and pin assignments are
labeled on the cable assembly and provided below.
Figure 6: DC Power Cable Pin Assignments
The GPS receiver is protected from reverse polarity with
an inline diode
.
It will operate on any DC voltage
between 10 and 30 VDC, 8 watts (maximum).
Voltages less than 10VDC will turn the unit
off. To turn the unit on, power must be in
the 10 to 30 VDC range. Press and hold
the I/O switch in for more than 3 seconds.
Voltages in excess of 30VDC will damage
the unit. The power supply must be well
conditioned with surge protection.
Vehicular electrical systems which create
voltage spikes in excess of 30VDC will
benefit from providing power protection
during vehicle engine power-up. This can
be accomplished through a relay power-on
sequence and/or power conditioning (such
as a DC to DC converter). Do not connect
equipment directly to the vehicles battery
without in-line protection (such as a DC to
DC converter
).
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