Agilent Technologies E4428C ESG, Installation Manual

Page: 46 / 66

40 Chapter 3
Operation Verification
Option UN7 (BERT) Check
Verifying BERT Operation
1. Press
BERT Trigger
>
Immediate
.
The
Total Bits
counter, in the lower left of the display, counts the number of bits received during
each trigger. In this test, the Total Bits counter counts from 0 to 10000000.
The Cycle Counter, at the lower right of the display, counts the number of measurement triggers
received. With the trigger configured to immediate, this count will continue until you change triggers or
turn off the BERT measurement. The following figure shows the front-panel display with the Total Bits
counter updated.
If the results are different than those indicated in the table above then re-check the rear-panel Aux I/O to
SMB connections and restart the testing with
“Configuring the Data” on page 39 . If the results are still
not correct, contact the Agilent Technologies service center for information and help. See the section
“Contacting Agilent Sales and Service Offices” on page 21 for contact information.
Table 3-1
Display Reading Expected Results
Total Bits
counting up to 10 000 000 Bits
Error Bits
0 Bits
BER
0.00000000%
Cycle Counter
updates with each trigger