User`s guide

28 • Jumpers and Connectors
2.3.4 Serial Port Connectors
Serial Port on RJ-45 Connector
Pin # Signal Name
1 DCD, Data carrier detect
2 RTS, Request to send
3 DSR, Data set ready
4
TXD, Transmit data
5 RXD, Receive data
6 GND, ground
7 CTS, Clear to send
8 DTR, Data terminal ready
Table 12: COM1 on front board or COM2 on the RTM
Serial Port on 10-pin Header Connector
Pin # Signal Name
1 DCD: Data Carrier Detect
2 RXD: Receive Data
3 TXD: Transmit Data
4 DTR: Data Terminal Ready
5 Ground
6 DSR: Data Set Ready
7 RTS: Request to Send
8 CTS: Clear to Send
9 RI: Ring Indicate
10 No Connect
Table 13: COM1 on the RTM