Digi TransPort WR11 - Transport WR31 Serial Pinout

Hardware features TransPort WR31 hardware features
Digi TransPort® Routers User Guide
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TransPort WR31 serial pinout
Note that all TransPort serial ports are DCE.
RS232 pinout
Pin # Direction RS232 DCE Description
1 Out DCD Data Carrier Detect
2 Out RXD Receive Data
3 In TXD Transmit Data
4 In DTR Data Terminal Ready
5 N/A GND Ground
6 Out DSR Data Set Ready
7 In RTS Ready To Send
8 Out CTS Clear To Send
9 Out RI Ring Indicate