发表于:2002-05-19 20:57:00
2楼
呜呜呜呜....很多地方都有定义的呀,还好李侃先生好心回了一个,不过不全哟。如果通讯是够了,如果接MODEM就不够。
Pin Name RS232 V.24 Dir Description
1 CD CF 109 Carrier Detect
2 RXD BB 104 Receive Data
3 TXD BA 103 Transmit Data
4 DTR CD 108.2 Data Terminal Ready
5 GND AB 102 System Ground
6 DSR CC 107 Data Set Ready
7 RTS CA 105 Request to Send
8 CTS CB 106 Clear to Send
9 RI CE 125 Ring Indicator