Nullmodem adapter pinout

serial interface cable

25 pin D-SUB female connector
to the Computer

	Female	Male
Shield Ground	1	1	Shield Ground
Transmit Data	2	3	Receive Data
Receive Data	3	2	Transmit Data
Request to Send	4	5	Clear to Send
Clear to Send	5	4	Request to Send
Data Set Ready	6	20	Data Terminal Ready
Data Terminal Ready	20	6	Data Set Ready
Ground	7	7	Ground

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25 pin D-SUB male connector
to the Serial cable

Pinouts.ru > Serial interfaces cables and converters schemes listing > Pinout of Nullmodem adapter and layout of 25 pin D-SUB female connector and 25 pin D-SUB male connector	Document status:	correct
Source(s) of this and additional information: Hardware Book	1 reports
Last updated at Sat Jun 25 2005. Submit additions or corrections for this document.	Is this document correct or incorrect? What is your opinion?

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