RS232接腳

• 9 pin的RS-232介面接腳

 9876
54321

9 RI  Ring Indicator
8 CTS  Clear To Send
7 RTS  Request To Send
6 DSR  Data Set Ready
5 GND  signal Ground
4 DTR  Data Terminal Ready
3 TD  Transmited Data
2 RD  Recevied Data
1 DCD  Received Line Signal Detector