RS-232 handshaking is a set of rules concerning the exchange of data between serially communicating devices. Default = RTS/CTS, XON/XOFF and ACK/ NAK Off.
RTS/CTS On
* RTS/CTS Off
XON/XOFF On
* XON/OFF Off
ACK/NAK On
* ACK/NAK Off
3800g User’s Guide
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