13
Figure 4-4
3-3 RS232 interface
Flow control:
None- The communication only uses TXD and RXD signals without any hardware or software
handshaking protocol.
RTS/CTS- If the scanner requests to send the barcode data to host computer, it will issue the RTS
signal first, wait for the CTS signal from the host computer, and then perform the normal data
communication. If there is no replied CTS signal from the host computer after the Response delay
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