AT&T System 25 - Manual (Page 170)

SYSTEM TESTS
TEST DATA TERMINAL DIALING FEATURE
Perform this test on all data terminals and personal computers connected to
the system through ADUs.
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Make sure the test terminal is on.
Press .
The command mode menu is displayed.
(The command mode menu may be displayed before you press
.)
Type D to select .
Enter
press
of the
—
The prompt DIAL: is displayed.
the number of a data terminal or host you want to call and
. (This is referred to as the Data Dial Code [DDC]
d a t a t e r m i n a l . )
RINGING is displayed.
If the call cannot be completed, one of these messages is displayed:
INCOMPATIBLE FAR END, DISCONNECTED, BUSY, DENlED, or
TRY AGAIN. Try the call again, or dial another terminal to perform
the test.
If the call is still not completed, check data port translations.
If the call is completed, ANSWERED is displayed. Press
twice within 1 second to end the test call.
DISCONNECTED is displayed.
The test terminal returns to the idle state.
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