When the buffer of the NC is empty, it sends the signal XOn (Transmission On), meaning that it is ready to receive data again. The default for XOff is ASCII 19, sometimes also called DC3 (Device Control 3), and ASCII 17 (DC1) for XOn. XOn/XOff are used only for text transmission...
ASCII- An acronym for American Standard Code for Information Interchange. ASCII files are plain, unformatted text files that are understood by virtually any computer. Windows Notepad and virtually any word processor can read and create ASCII files. ASCII files usually have the extension .TXT (e.g...