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RS-422 9pin

pinout

9 pin D-SUB male

9 pin D-SUB male connector at the DTE (Computer)

Pin	Name	Description
1		Shield
2	RTS+	Request To Send +
3	RTS-	Request To Send -
4	TXD+	Transmit Data +
5	TXD-	Transmit Data -
6	CTS+	Clear To Send +
7	CTS-	Clear To Send -
8	RXD+	Received Data +
9	RXD-	Received Data -

Note: Direction is DTE (Computer) relative DCE (Modem)

9 pin D-SUB female

9 pin D-SUB female connector at the DCE (Modem)

Source:www.pinouts.ru

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