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Appendix A
Specifications
Jitter and Wander specifications
T-BERD/MTS/SC Getting Started Guide
March 2018
22046537, Rev. 016
Page 225
•
“Jitter generator” on page 225
•
•
“Automatic jitter measurements” on page 227
•
“Wander generator” on page 228
•
“Wander measurement” on page 229
•
“Memory requirements” on page 230
Standards
Jitter and wander are generated and analyzed in accordance with the following stan-
dards:
•
ITU-T Recommendations G.823, G.825, O.172 (04/2005)
•
Telcordia GR-499-CORE Issue 2-1998, GR-253-CORE Issue 4-2005
•
ANSI Standards T1.102 - 1993, Table 9, T1.404-1994 section 5.10
Jitter generator
Meets or exceeds the requirements stated in
ITU-T Recommendation O.172 (04/2005)
.
Modulation specifications
provides modulation specifications for the electrical jitter generator.
The settling time for the changes in amplitude is less than 30 seconds.
Error limits
Error limits conform to the requirements stated in
ITU-T Recommendation O.172 (04/
2005)
.
Jitter analyzer
Meets or exceeds the requirements of
ITU-T Recommendation O.172 (04/2005)
.
Table 140
Electrical jitter generator modulation specifications
Item
Description
Jitter modulation signal
Sine wave
Jitter amplitude
Per ITU-T O.172
Step width
0.001 UI
Modulation frequency accuracy
± 0.1%
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