Agilent Technologies 71612, Quick Reference

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14
Error Detector Setup
Set Up Data Input
Ensure the Error Detector is cabled correctly.
Select then setup input polarity, termination
and delay using the available softkeys.
Perform clock-data alignment to ensure the Error Detector
samples in the middle of the date eye as follows:
Select , ,
, , ,
, then view results.
On input signals with an unequal mark-density, perform a
0/1 threshold center operation as follows:
Select , ,
, select eye edge threshold ratio using
numeric keypad, then ,
, then view results.
Control Synchronization and Audible Tone
Select and use the softkeys to control
Error Detector synchronization and the audible tone that
sounds when errors occur.
Synchronization to the incoming pattern can be performed
automatically or manually. In manual,
forces
the Error Detector to attempt synchronization with the
received pattern. Synchronization is gained when the
measured error rate is less than the set sync threshold.
input & eye
input & eye
0/1 THR AUTOMAN
EYE EDG THRSHLD CLK-DAT ALIGN
result pages
EYE RESULTS
input & eye
0/1 THR AUTOMAN
EYE EDG THRSHLD
CLK-DAT ALIGN
0/1 THR CENTER
sync & audio
START SYNC
Error Det
Setup
71612-90017.fm Page 14 Wednesday, July 18, 2001 11:26 AM