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.

Filename	Size	Update
readme.txt	13838	2018-01-08
RS232_Client.php	2206	2018-01-08
RS232_Server.php	2202	2018-01-08

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