NavCom SF-2050 Rev.D - Manual (Page 18)

SF-2050 User Guide - Rev. D
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When using an external power cable longer than
5m(15ft), it is recommended that positive voltage DC
be supplied on both pins 3 and 4, and return on both
pins 1 and 2.
NavCom P/N 94-310060-3010 a 3m (10ft)
unterminated power cable fitted with a LEMO plug type
(Mfr. P/N FGG.1K.304.CLAC50Z) and red strain relief, is
suitable for supplying power to the SF-2050 GPS sensor.
This cable is supplied with the SF-2050 series GPS
sensors. The wiring color code and pin designations are
labeled on the cable.
The GPS sensor is protected from reverse polarity by an
inline diode. It will operate on any DC voltage between
10 and 30 VDC, which is capable of supplying the
required current. The sensor typically uses:
0.87 Amps at 12VDC (10.4 Watts)
0.45 Amps at 24VDC (10.8 Watts)
0.38 Amps at 30VDC (11.4 Watts)
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Voltages less than 10VDC will shut the unit down.
When power is restored, the ON switch will need to be
held down for more than 3 seconds.
0
Voltages in excess of 30VDC will damage the unit. It is
extremely important to ensure that the power supply is
well conditioned with surge protection. This is
especially true for vehicular electrical systems, which
can create voltage spikes far in excess of 30VDC.
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