GeoSIG Ltd GS_GXR_GPS_User_Manual_V03.doc / 22.06.2010
Page 2 GPS User Manual
2. Electrical Connection
2.1. GPS Main Connector Pin Assignment
The GXR-GPS is provided with an 8 pin main connector inside the box.
Before connecting the connector, the cable should be passed through the cable inlet assembled on
the housing.
The cable end sleeves should be used for a proper connection of the cable on the connector.
Table 1. Electrical connections of the GXR-GPS connector
Pin Signal Standard cable colors Comment
1 GPS_RXD White Transmit signal of GSR
2 GPS_TXD Brown Reception signal of GSR
3 GPS_1PPS Green 1 PPS signal from GPS
4 V_MAIN Yellow 12V power from instrument
5 GPS_STDBY N/A Usually not connected
6 GND Grey Ground from instrument
7 GND N/A Usually not connected
8 GND N/A Usually not connected
Table 2. Electrical connections of the GXR-GPS-485 connector
Pin Signal Standard cable colors Comment
1 TX_H White Transmit signal of CR-5P
2 RX_H N/A Usually not connected
3 TX_L Brown Reception signal of CR-5P
4 RX_L N/A Usually not connected
5 GPS_SYNC Green 1 PPS signal from GPS
6 V_MAIN Yellow 12V power from instrument
7 GND Grey Ground from instrument
8 GND N/A Usually not connected
Figure 2. Connector pin out GXR-GPS
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Figure 3. Connector pin out GXR-GPS-485
Figure 4. Connector wiring GXR-GPS
Figure 5. Connector wiring GXR-GPS-485
