RS232 port pinouts. By Lee Davison.

SignalName DE-9 PinDB-25 Pin
DCDData Carrier Detect18
RXDReceive Data23
TXDTransmit Data32
DTRData Terminal Ready420
GNDSignal Ground57
DSRData Set Ready66
RTSRequest To Send74
CTSClear To Send85
RIRing Indicator922


Last page update: 15th December, 2005. e-mail me