User's Manual
22 S&C Instruction Sheet 766-527LD
The RS-232 Radio Maintenance Port of the Wi-Fi/GPS Unit is congured as data-terminal
equipment. See Figure 21.
Interface Pinouts
Figure 21. The Wi-Fi/GPS Unit RS-232 interface pinout.
Pin Function Description
1 NC No Connection
2 RX from Radio RS-232 Receive
3 TX to Radio RS-232 Transmit
4 NC No Connection
5 TX to Radio GND Signal Ground
6 NC No Connection
7 RTS to Radio Request to Send
8 CTS to Radio Clear to Send
9 NC No Connection
Figure 20. The Wi-Fi/GPS Unit connectors.
Wi-Fi antenna
GPS antennaDB9 connector
USB not usedEthernet 2Ethernet 1
Wi-Fi/GPS Unit Connectors