今天从抽屉里翻出1页纸,是以前不知道从哪里抄来的 232转422 转接头内部连线的接法,破破烂烂的,赶紧敲到这里保存
1---------------NC
2---------------2
3---------------8
4---------------NC
5(GND)-- 1 (3 4)6 9 (s)
6---------------NC
7---------------NC
8---------------NC
9---------------NC
* On the 9-male conector ground pins 4 and 3 are most important
* the others(1、6、 9 shield)are a good idea but not mandatory
* some software may require that pins 1,4,6 and 8 be tied together on the RS232 9-PIN
232接法
2--3
3--2
5--5