Serial (PC 9)

Also known as EIA/TIA 574

 (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.

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Document last modified: 2002-01-10