免费国精产品自偷自偷免费看_在线看片成人_www.77伦理bt.com_特级黄色一级片_免费夜色污私人影院在线观看_国严精品久久久久久亚洲影视

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