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Section 400-Programming
Serial Port Flow Control (XON / XOFF)
Software Version: All Versions
Address:
FF1 2# 2# 9# (0 or 1)#
Description
If "XON/XOFF" is activated in this address, the DBS will stop the flow of
data when the SMDR device's memory buffer becomes full, and resume the
flow when the buffer empties.
"XON/XOFF" should be deactivated (default setting) if a flow control
mechanism is present elsewhere in the interface (i.e., in the printer, or RTS
and CTS lines). A flow control mechanism should always be present in order
to prevent data from being lost during transmission.
Programming
Notes
DBS Buffer Size. The size of the DBS buffer for SMDR is 8 kB. This is the
maximum amount of data that the system can hold while the SMDR device is
emptying its buffer.
DBS-2.3/9.2-400
FF1 2# 2# 9# (0 or 1)#
0=DBS does not use "XON/XOFF"
(flow control is present elsewhere).
1=DBS uses "XON/XOFF".
DBS Manual - Revised April 2000
Chapter 1. System Programming (FF1)
Page 1-63
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