Download Service Manual - Agilent Technologies

Performance Tests
Description
This test verifies that the jitter receiver measures jitter to the required accuracy.
The test uses a BER/Jitter Generator to provide a 2 Mb/s line rate, accurate jitter
source. The accuracy is achieved using the Bessel Null method measured on a
Spectrum Analyzer.
Equipment Required
BER/Jitter Generator
37718C Option 012, 200
Spectrum Analyzer
8560E
75Ω/50Ω Matching Pad
E2629A
Procedure
1 Recall the ProBER 2 default settings as shown on page 2-3.
2 Set the BER/Jitter Generator as follows:
Line Rate
2.048 Mb/s
Framing
PCM30
Pattern
All Ones
Line Code
HDB3
Line Termination
75Ω
Jitter Amplitude
0.77 UI
Jitter Frequency
2400 Hz
3 Connect the BER/Jitter Generator signal to the Spectrum Analyzer via the
matching pad.
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