Agilent Technologies auroraSonata, Руководство пользователя

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aurora
Sonata
Hand Held ISDN Tester—User Guide
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Performing an unframed BERT
When you select
Unframed BERT
, aurora
Sonata
displays the
standard BERT screen for the test, setting up and running the
test is performed in the same way as the standard BERT.
For full instructions, see the main Bit Error Rate Testing
(BERT) information later in this section.
Setting up an unframed loop
When you select
Unframed Loop
, aurora Sonata provides a loop
so that all data it receives from the remote device is sent back
out as a full two-megabit transmission. You would use this
when performing an unframed BERT.
While the loop is set up, the following screen is displayed:
To stop the unframed loop:
-1-
Press ENTER to select
STOP
.
Sending a test tone on a 2B1Q link
The 40kHz test is used to send a 40kHz tone at -12 dBm
(decibels) across the line from the remote end, to be used by a
tester at the exchange (a TIMS tester) to measure signal loss.
This test may only be used on the Basic Rate U interface with
2B1Q line coding.