Universal cable, USB和RJ45头的Universal电缆的固件代码，PIC代码-Universal cable, USB and RJ45 cables, head of Universal firmware code, PIC code

汇总整理RJ45 RS232 USB三种接口的详细资料、接驳方式及接口的制作方法与传输方式-Collecting and sorting RJ45 RS232 USB triple interface details, access methods and interfaces of the production methods and transmission