The term serial adapter might be quite familiar to you. It is a term that is used quite popularly in the market. First of all, what does the term Wholesale serial adapters actually mean?
Easily put, it is a kind of serial data transmission. You will in all likelihood understand the usual nine-pin DB9 cable. Simply put, an RS232 connection transmits alerts the use of a nice voltage for a binary zero and a terrible voltage for a binary 1.
In the instance when you find yourself using the RS232 devices you must remember that there are actually two different types-
DTE stands short for Data Terminal Equipment. For instance, it is commonly found in a computer.
DCE stands short for Data Communications Equipment. An instance of DCE is a modem.
The purpose of it being so essential is due to the fact DTE or DCE gadgets can't communicate to every different module without a little help. This is generally completed via way of means of the use of a reverse (null-modem) RS232 cable connection to attach the gadgets.
Typically the PLCs could be DTE and our gadgets can be monitored through DCE hence, the whole lot would then have to communicate with each other in a different way.