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Remote Loopback Test with Self-Test
Issue 2 November 1996
D-9
Figure D-5. Remote Loopback Test with Self-Test
Performing a Remote Loopback Test with
Self-Test
To initiate the test, set up a data call and escape to command mode (+++). Then
type:
AT&T7
This test will continue for the period of time indicated in S-register S18. To
terminate the test before the test timer expires, type:
AT&T0
The system responds with the error count, then the completion signal:
000
OK
Remote DTE
Local DTE
8400B Plus
Transmitter
Test Circuit
Receiver
Remote
Data Endpoint
Receiver
Transmitter
S
W
I
T
C
H
ENTER
ENTER