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Appendix A Specifications
Jitter and Wander specifications
T-BERD/MTS/SC Getting Started Guide
March 2018 22046537, Rev. 016 Page 235
• Structured test signals (for SDH as described in ITU-T Recommendation O.172)
• Sine wave modulation
• Standard filters: Highband
Measurement error
The stated measurement error applies without restriction to standard range, for values
>25 UIp in extended range.
• Maximum measurement error: ± R % of reading ± W
The value for W (fixed error) is taken from Table 159 . The value for R (variable error)
can be taken from ITU-T Recommendations O.172 (04/2005) and O.173 (03/2003) as
applicable.
RMS jitter
This section describes the RMS jitter specifications.
Range and resolution
Table 160 describes the RMS range and resolution.
Measurement accuracy
Table 161 describes the RMS jitter measurement accuracy.
Table 159 W (fixed error)
Range Wide-band Filter Extended-band Filter
W in UIpp W in UIpp
Standard range 0.035
1
1. Mapping SDH VC-4/SONET STS-1, payload pattern PRBS31, environmental tempe20 ° C to +30 ° C.
0.5
Table 160 RMS range and resolution
(peak-peak) Standard range Extended range
RMS range 0 to 25 UI 0 to 400 UI
Resolution 0.0001 UI 0.01 UI
Table 161 RMS jitter measurement accuracy
Item Description
Standard range ± R% of measured value ± 0.003 UI
1
1. The value R (variable error) is taken from ITU-T Recommendation O.172 (04/2005) and O.173 (03/2003) as appli-
cable.
Extended range ± R% of measured value ± 0.05 UI
1
Integration time 1 second