欧洲色情三级欧美三级视频_国产成人无码av在线播放不卡_大地资源中文在线观看免费_午夜天堂AV天堂久久久_私人家庭影院在线_www.日韩在线

打印機腳號                       OMROMPLC型號CJ1M的腳號
6   DSR                              1   NC

7   GND                              2   RD

5    RST                              3   SD

3    TXD                              4    CS

2     RXD                             5    RS

                                             6    +5V

                                            7,8   NC

                                             9      SG        

RS232線如何做

寫的不明白