Honeywell International Inc. CS19A 用户手册
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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
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
inside back cover of this manual, then scanning Save. The range is 0 to 300
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
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.
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
on page 2-25) 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.
device transmit buffer is cleared and scanning may resume.
Default = RTS/CTS Off.
RS232 Receiver Time-Out
Flow Control, No Timeout
* RTS/CTS Off
Two-Direction Flow Control
Flow Control with Timeout
Preliminary Draft