NavCom SF-2040 Rev.E - Manual (Page 15)

SF-2040 User Guide - Rev. E
Chapter 2 Interfacing
This chapter details the SF-2040 GPS sensor connecters
and status display, appropriate sources of electrical
power, and how to interface the communication ports.
Electrical Power Supply
Electrical power is input thru a 4-pin LEMO female
connector located on the front panel of the SF-2040,
and labeled ‘DC PWR.’ The pin designations are shown
in Table 1; see Figure 2 for pin rotation on unit.
Pin Description
1
2
Return [Ground]
3
4
Power Input 10 to 30 VDC
Table 1: External Power Cable Pin-Out
‡
Pins 1 and 2 are connected together inside the SF-
2040 GPS sensor. Pins 3 and 4 are connected together
inside the GPS sensor.
‡
When using an external power cable longer than 5m
(15ft), it is recommended that positive voltage DC be
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