Rs232 Receiver Time-Out; Rs232 Handshaking - Honeywell Vuquest 3330 User Manual

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 transac-
tion on the CTS line will also wake up the receiver. The receiver takes 300 millisec-
onds to completely come up. Change the RS232 receiver time-out by scanning the
bar code below, then scanning digits from the inside back cover of this manual,
then scanning Save. The range is 0 to 300 seconds. Default = 0 seconds (no time-
out - always on).

RS232 Handshaking

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
If the delay time expires and CTS is not asserted, the device transmit buffer is cleared
and scanning may resume.
Default = RTS/CTS Off.
Flow Control, No Timeout
Flow Control with Timeout
28
RS232 Receiver Time-Out
RS232 Timeout on page 29) for CTS to be asserted by the host.
Two-Direction Flow Control
* RTS/CTS Off
Vuquest 3320g User Guide