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Wednesday, May 27, 2009

Standard DB9 and DB25 Pinouts

Name        25-pin         9-pin
---------------------------------------------------------
TxD 2 3 transmit data
RxD 3 2 receive data
RTS 4 7 request to send (power)
CTS 5 8 clear to send
DSR 6 6 data set ready
GND 7 5 ground
DCD 8 1 data carrier detect(signal)
DTR 20 4 data terminal ready

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