Agilent Technologies AuroraPresto, User Manual

Page: 179 / 266

Section 6 - Datalink
Issue 7 - 05/02 4-79
-1-
Select
DSL BW%
from the
BERT
setup menu to
display an entry window.
-2-
Enter a
DSL BW%
between
1
and
100
.
Performing an ATM25 BERT
-1-
From the
Select Test Mode
select
Manual Tests
.
-2-
From the
Select Operation
screen select
ATM Layer
and press ENTER to display the
ATM25 BERT Test
screen.
-3-
Press F1
Start
.
The following screen is displayed.
Making sure that the patterns are synchronised
For the BERT to be reliable, the pattern
Aurora Presto
receives back across the line must be synchronised with the
pattern it is transmitting, so that they can be compared.
To make sure that this is the case, look at the BERT Sync
LED. Steady green means that the patterns are
synchronised. If they are out of synchronisation, check that
the remote end is looping back and sending the same
pattern as your
Aurora Presto
.
481801-7.book Page 79 Thursday, May 23, 2002 10:46 AM