GeoSIG GMS-GPS, User Manual

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GMS-GPS User Manual
02.09.2022 / V3 7 / 19
4. Electrical Connection
4.1. GPS Main Connector Pin Assignment
4.1.1. With RS-232 connection
The GPS device is provided with an 8-pin main connector inside the box, supplied already connected.
Table 1. Electrical connections of the RS-232 GPS device connector
Pin Signal Standard cable Colours Comment
1 GPS_RX_P White Reception signal from instrument
2 GPS_TX_P Brown Transmit signal of GPS
3 GPS_1PPS_P Green 1 PPS signal of GPS
4 V_MAIN Yellow 12V power from instrument
5 GPS_1PPS_N N/A Only used for RS-485
6 GND Grey Ground from instrument
7 GPS_RX_P N/A Only used for RS-485
8 GPS_TX_N N/A Only used for RS-485
Figure 5. Connector wiring
Figure 6. Connector pin out
4.1.2. With RS-485 connection
The GPS device is provided with an 8-pin main connector inside the box, supplied already connected.
Table 2. Electrical connections of the RS-485 GPS device connector
Pin Signal Standard cable Colours Comment
1 GPS_RX_P White Reception signal from ins
2 GPS_TX_P Green Transmit signal of GPS+
3 GPS_1PPS_P Grey 1 PPS signal of GPS+
4 V_MAIN Red 12V power from instrument
5 GPS_1PPS_N Pink 1 PPS signal of GPS-
6 GND Blue Ground from instrument
7 GPS_RX_N Brown Reception signal from instrument-
8 GPS_TX_N Yellow Transmit signal of GPS-
Figure 7. Connector wiring
Figure 8. Connector pin out
1 8
1 8