Intermec 4800 User Guide

The unit stays awake to receive data until the RS-232 Receiver Time-Out 
expires.  A manual or serial trigger resets the time-out.  When an RS-232 
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 RS-232 
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).

RS-232 handshaking is a set of rules concerning the exchange of data between 
serially communicating devices.  

If using RTS/CTS handshaking, the imager issues an active RTS signal to the 
receiving device.  The imager waits to send its data until it detects an active CTS 
signal from the receiving device.  The imager then sends its data while checking 
the CTS signal before the transmission of each data character.  If an inactive 
CTS signal is detected at any time, the imager halts transmission until it detects 
another active CTS signal.  When the imager has finished transmitting data, it 
issues an inactive RTS signal to the receiving device.  

Default = RTS/CTS Off, 

XON/XOFF Off, and ACK/NAK Off.

RS-232 Receiver Time-Out

  RTS/CTS On

 * XON/OFF Off

* RTS/CTS Off

XON/XOFF On

ACK/NAK On

 * ACK/NAK Off