Honeywell International Inc. CS19A Manuale Utente

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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 
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 
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 
 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.  
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