Software Handshaking (Continued); Host Serial Response Time-Out - Symbol P 370 RF Reference Manual

P 370/470 RF Scanner Product Reference Guide

Software Handshaking (Continued)

XON/XOFF
An XOFF, Transmit Off, character turns the scanner transmission off until the scanner
receives an XON, Transmit On, character. There are two situations for XON/XOFF:
XOFF is received before the scanner has data to send. When the scanner has data to
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send, it then waits for an XON character before transmission. The scanner waits up
to two seconds to receive the XON. If the XON is not received within this time, the
scanner issues an error indication and discards the data.
XOFF is received during a transmission. Data transmission then stops after sending
!
the current byte. When the scanner receives an XON character, it sends the rest of
the data message. The scanner waits indefinitely for the XON.

Host Serial Response Time-out

This parameter specifies how long the scanner waits for an ACK, NAK or CTS before
determining that a transmission error has occurred. This only applies when in one of the
ACK/NAK Software Handshaking modes, or RTS/CTS Hardware Handshaking option.
The delay period can range from 0.0 to 9.9 seconds in 0.1 second increments. After scanning
the bar code below, scan two numeric bar codes beginning on page 5-102. If you make an
error, or wish to change your selection, scan CANCEL on page 5-104.
5-92
XON/XOFF

HOST SERIAL RESPONSE TIME-OUT