Software Handshaking - Symbol P 300STD Product Reference Manual

P 300STD/FZY/PRO Scanner Product Reference Guide
When Option 3 is selected, the scanner asserts RTS prior to any data transmission, regardless
of the state of CTS. The scanner waits up to 2 seconds (default) for CTS to be asserted. If CTS
is not asserted during this time, the scanner issues an error beep and discards the data. The
scanner deasserts RTS when transmission is complete.

Software Handshaking

This parameter offers control of the data transmission process in addition to, or instead of,
that offered by hardware handshaking. There are five options.
If Software Handshaking and Hardware Handshaking are both enabled, Hardware
Handshaking takes precedence.
None
!
When this option is selected, data is transmitted immediately.
ACK/NAK
!
When this option is selected, after transmitting data, the scanner expects either an
ACK or NAK response from the host. Whenever a NAK is received, the scanner
2-104
RTS/CTS Option 2
RTS/CTS Option 3
None