RS-232D串口基础知识及接口定义

介绍RS232D串口的机械特性,电气特性,功能特性及信号及连接器管脚定义.

RJ45接口的RS-232D接口定义

Pin
Name
Dir
Description


1
DSR/RI

Data Set Ready / Ring Indicator


2
CD

Carrier Detect


3
DTR

Data Terminal Ready


4
GND

System Ground


5
RXD

Receive Data


6
TXD

Transmit Data


7
CTS

Clear to Send


8
RTS

Request to Send