GoTo Connector

Serial (PC 9)

Also known as EIA/TIA 574

9 PIN D-SUB MALE (at the Computer)

9 PIN D-SUB MALE at the Computer.

Pin Name RS232 V.24 Dir Description
1 CD CF 109 <-- Carrier Detect
2 RXD BB 104 <-- Receive Data
3 TXD BA 103 --> Transmit Data
4 DTR CD 108.2 --> Data Terminal Ready
5 GND AB 102 --- System Ground
6 DSR CC 107 <-- Data Set Ready
7 RTS CA 105 --> Request to Send
8 CTS CB 106 <-- Clear to Send
9 RI CE 125 <-- Ring Indicator

Note: Direction is DTE (Computer) relative DCE (Modem).
Note: RS232 column is RS232 circuit name.
Note: V.24 column is ITU-TSS V.24 circuit name.