不会用， 输出TTL接口上面有6个接口T/R+ T/R- RXD+ RXD- GND VCC ，如何转接为TXD RXD GND 谢谢，
[img]http://www.eazzydeal.com/cfolder/eazzydeal/Library/Tree/Computers/RS232/1024003_01.jpg[/img]
[img]http://www.eazzydeal.com/cfolder/eazzydeal/Library/Tree/Computers/RS232/1024003_03.jpg[/img]
