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A single DS0 can be used for continuous testing while other DS0s are passing
normal data. This will also provide an end-to-end check on the entire link. Set
each end to send QRSS in TST DS0s (using 1 DS0) and occasionally view the
results on the Pattern Result menu selection.
61202156L2-1
SES
The number of seconds with more than 320 bit errors.
*SYNC
Indicates if pattern sync is (
asterisk (*) indicates if pattern sync has been lost since
the start of testing.
Clear results by pressing C. The results are accumulated
until the test pattern is set to N
Using TST DS0s for testing can be very useful, particu-
larly in Fractional T1 applications.
How to Run an End-to-End Test on Fractional DS0s
Step
Set the TST for Map B in the same DS0 as
1
used by Map A to receive data from an
Nx56/64 port.
Loop the far end using a V.54 loopback
2
code on the Nx56/64 port.
TDU 120e User Manual
Chapter 7. Test Menu
) or is not (
) valid. The
YES
NO
or C
ONE
LEARED
Action
.
7-7
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