什么是RS232/RS484及其应用?
QUOTE:
RS232接口就是串口，电脑机箱后方的9芯(或25芯)插座，旁边一般有 "|O|O|" 样标识。
一般机箱有两个，新机箱有可能只有一个。笔记本电脑有可能没有。
有很多工业仪器将它作为标准通信端口。通信的内容与格式一般附在仪器的用户说明书中。(hat is RS232/RS484 and its application?
QUOTE:
RS232 interface is the serial port, the 9 core (or 25 core) socket behind the computer chassis, next to the general "|O|O|" like logo.
The general chassis has two, and the new chassis may have only one. The laptop is probably not.
There are many industrial instruments that use it as a standard communication port. The content and format of the communication is generally attached to the user's Manual of the instrument.)