C-Nav 2050, User Manual

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2050 User Guide
Chapter 2 Interfacing
This chapter details the 2050 GPS sensor connectors and status display. Appropriate sources of
electrical power, and how to interface the communication ports.
Electrical Power
The electrical power input comprises a 4-pin LEMO female connector located on the bottom
front panel of the 2050, and is labeled ‘DC PWR’ as shown in Figure 2. The pin
designations of this connector are shown in Table 1; see Figure 2 for pin rotation on unit.
Pin Description
1 Return
2 Return
3 Power Input 10 to 30 VDC
4 Power Input 10 to 30 VDC
Table 1: External Power Cable Pin-Out
Note – Pins 1 and 2 are connected together inside the 2050 GPS sensor. Pins 3 and 4 are connected
together inside the GPS sensor.
C&C P/N 4250005-10 is 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
2050 GPS sensor. This cable is supplied with the 2050 series of GPS sensors.
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 2050 GPS receiver 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)
Note – 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.
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