User guide

4
From the Navigation Menu, select External Instrument(s) and then click
Config sub-menu. The Config window shows a list of all instruments connected
to the Serial BERT. Confirm the presence of N4916A enrty in that list.
5
Corrosponding to N4916A entry, select the De-Emphasis function check box
from the given options under Enable Function column. It opens the De-
emphasis Signal Converter Connection dialog.
6
Click Enable button. It enables N4916A De-emphasis signal converter that is
connected between data out of Serial BERT and the DUT.
Once the de-emphasis function is enabled you can see the de-emphasis
parameters in the PG Output screen.
7
Again, from the Config window, corrosponding to N4916A, clear the De-
Emphasis function check box. It will disable the de-emphasis function.
If you could proceed until here, the connection of the user software to the N4916A
is ok.
Check the Output of the N4916A Using a Scope
1
Set the Data offset to 0 V and the amplitude to 1 V. Set the De-Emphasis to 6
dB.
2
Connect the Output of the N4916A to an oscilloscope.
3
Connect the trigger output of the Serial BERT to the trigger input of the
oscilloscope.
9 Solving Problems
496 Agilent J-BERT N4903B High-Performance Serial BERT