Xenon/Granit User Guide 39
RS232 Receiver Time-Out
The unit stays awake to receive data until the RS232 Receiver Time-Out expires. A
manual or serial trigger resets the time-out. When an RS232 receiver is sleeping, a
character may be sent to wake up the receiver and reset the time-out. A transaction
on the CTS line will also wake up the receiver. The receiver takes 300 milliseconds
to completely come up. Change the RS232 receiver time-out by scanning the bar
code below, then scanning digits from the Programming Chart, beginning on page
353, then scanning Save. The range is 0 to 300 seconds. Default = 0 seconds (no
time-out - always on).
RS232 Handshake
RS232 Handshaking allows control of data transmission from the scanner using
software commands from the host device. When RTS/CTS is turned Off, no data
flow control is used.
Flow Control, No Timeout: The scanner asserts RTS when it has data to send, and
will wait indefinitely for CTS to be asserted by the host.
Two-Direction Flow Control: The scanner asserts RTS when it is OK for the host to
transmit. The host asserts CTS when it is OK for the device to transmit.
Flow Control with Timeout: The scanner asserts RTS when it has data to send and
waits for a delay (see RS232 Timeout on page 40) for CTS to be asserted by the
host. If the delay time expires and CTS is not asserted, the device transmit buffer is
cleared and scanning may resume. Default = RTS/CTS Off.
* 8 Data, 1 Stop, Parity None
8 Data, 1 Stop, Parity Odd
8 Data, 1 Stop, Parity Mark
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