RS-232 Modifiers

RS-232 Handshaking

RS-232 handshaking is a set of rules concerning the exchange of data between serially communicating devices.

If using RTS/CTS handshaking, the imager issues an active RTS signal to the receiving device. The imager waits to send its data until it detects an active CTS signal from the receiving device. The imager then sends its data while checking the CTS signal before the transmission of each data character. If an inactive CTS signal is detected at any time, the imager halts transmission until it detects another active CTS signal. When the imager has finished transmitting data, it issues an inactive RTS signal to the receiving device. Default = RTS/CTS Off, XON/XOFF Off, and ACK/NAK Off.

RTS/CTS On

* RTS/CTS Off

XON/XOFF On

* XON/OFF Off

ACK/NAK On

* ACK/NAK Off

Product Reference Guide

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Image 29
Datalogic Scanning 7000 manual RS-232 Handshaking