Digi TransPort, Руководство пользователя

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Configure X.25 parameters
Digi TransPort User Guide 545
7 Action on Break (from DTE)
Determines the action taken by the PAD on receipt of a break signal from the DTE.
.
Multiple actions on receipt of break are possible, by setting this parameter to the sum of the
appropriate values for each action required. For example, when parameter 7 is set to 21 ( 16 +
4 + 1 ), an X.25 interrupt packet is sent followed by an X.29 indication of break, and then
parameter 8 is set to 1 . Do not set this parameter to 16 ; doing so would mean the remote
system would receive no indication that a break had been issued and output to the DTE would
therefore remain permanently discarded. If you need to use the discard output option, use it
with the X.29 break option. so that on receipt of the X.29 break, the remote system can re-
enable output to your DTE using parameter 8 .
Option Description
8 Discard Output
Determines whether data received during a call is passed to the DTE or discarded. It can only
be directly set by the remote system and may be used in a variety of circumstances when the
remote DTE is not able to handle a continuous flow of data at high speed.
9 Padding after CR
Slower terminal devices, such as printers, may require a delay after each Carriage Return
before they can continue to process data. This parameter controls the number of pad
characters ( NUL-ASCII 0 ) that are sent after each CR to create such a delay.
Option Description
0 No action
1 Send an X.25 interrupt packet
2 Send an X.25 reset packet to the remote system
4 Send an X.29 indication of break
8 Escape to PAD command state
16 Set PAD parameter 8 to 1 to discard output
Option Description
0 Normal data delivery to DTE
1 Output to DTE discarded
Option Description
0 No padding characters after CR
1-255 Number of padding characters (NUL) sent after CR