User's Guide

2 - 20
RS232 Receiver Time-Out
The unit stays awake to receive data until the RS232 Receiver Time-Out expires. A scan button push or serial trigger
command 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 millisec-
onds to completely come up. Change the RS232 receiver time-out by scanning the bar code below, then scanning dig-
its 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 RS232
Timeout on page 2-21) 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
RS232 Receiver Time-Out
Flow Control, No Timeout
Two-Direction Flow Control
Flow Control with Timeout
VG1602-UG C Released Honeywell proprietary & Confidential
The HEC and TEC codes identified in this watermark supersede any conflicting HEC or TEC codes displayed in the drawing.
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