NavCom RT-3020 Rev.A - Manual (Page 15)

RT-3020S User Guide
3-13
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.
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 RT-3020
GPS sensor. This
cable is supplied with the RT-3020 series of GPS
receivers. 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
0.67 Amps at 12VDC (8.0 Watts)
0.35 Amps at 24VDC (8.4 Watts)
0.30 Amps at 30VDC (9.0 Watts)
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.
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.