Escaping to pad command mode, Escaping to at command mode, Disconnecting the x.25 virtual connection – Northern UTA220/UTA220k User Manual

Page 80

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12-4

UTA220/UTA220k

D-Channel X.25

Escaping to PAD Command Mode

When in data transfer mode or connect-in-progress mode, it is
possible to escape to the PAD command mode to execute a
PAD command. To escape to the PAD command mode issue
the PAD recall character as specified by X.3 parameter 1. The
default PAD recall character for the TA is DLE (Ctrl P).

Once in the PAD command mode, the PAD prompt character
* displays and only one PAD command may be executed.
Upon execution of the PAD command, the PAD returns either
to the previous mode of the PAD (i.e., data transfer) or to the
final mode required by the execution of the PAD command
(i.e., after execution of the PAD clear command, the final mode
is the PAD command mode).

Escaping to AT Command Mode

To escape to the AT command mode from PAD data or
command mode, enter the AT escape command (+ + +). This
temporarily suspends PAD operations and follows standard is
AT command function operation. To return to PAD operation
enter:

ATDD

To end the call and exit the PAD enter:

ATH

To save the port and current session configuration, including
the current PAD parameter configuration, to nonvolatile
memory enter:

AT&W

Disconnecting the X.25 Virtual Connection

The X.25 virtual call connection is disconnected by issuing the
PAD Clear command while in the PAD command mode.

Example: *CLR

This disconnects the virtual call but leaves the terminal adapter
on-line and in the PAD command mode.

When the virtual call is disconnected, the PAD Clear
Confirmed response and PAD prompt character are displayed:

CLR CONF

*

The PAD is now in the PAD command mode where another
X.25 virtual connection can be established via the PAD Select
command.

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