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Serial (PC 9)

9 PIN D-SUB MALE (At the Computer)

9 PIN D-SUB MALE at the Computer.

Pin Name Dir Description
1 CD <-- Carrier Detect
2 RXD <-- Receive Data
3 TXD --> Transmit Data
4 DTR --> Data Terminal Ready
5 GND --- System Ground
6 DSR <-- Data Set Ready
7 RTS --> Request to Send
8 CTS <-- Clear to Send
9 RI <-- Ring Indicator
Note: Direction is DTE (Computer) relative DCE (Modem).


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