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RS232 Pinouts

 

RS232 DB25 Pinouts

Pin 1Protective Ground
Pin 2Transmit Data
Pin 3Received Data
Pin 4Request To Send
Pin 5Clear To Send
Pin 6Data Set Ready
Pin 7Signal Ground
Pin 8Data Carrier Detect
Pin 20Data Terminal Ready
Pin 22Ring Indicator

RS232 DB9 Pinouts

Pin 1Data Carrier Detect
Pin 2Received Data
Pin 3Transmit Data
Pin 4Data Terminal Ready
Pin 5Signal Ground
Pin 6Data Set Ready
Pin 7Request To Send
Pin 8Clear To Send
Pin 9Ring Indicator

RS232 RJ-45 Pinouts

Pin 1Data Set Ready / Ring Indicator
Pin 2Data Carrier Detect
Pin 3Data Terminal Ready
Pin 4Signal Ground
Pin 5Received Data
Pin 6Transmit Data
Pin 7Clear To Send
Pin 8Request To Send
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