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Appendix A
Specifications
Jitter and Wander specifications
T-BERD/MTS/SC Getting Started Guide
March 2018
22046537, Rev. 016
Page 227
Current values
describes the ranges for the current values. The values are displayed contin-
uously, or they appear in a graph.
Display resolution
describes the resolution of the current and maximum values for displayed
and logged results.
Error limits for displayed jitter
The error limits for displayed jitter meet the requirements of
ITU-T Recommendation
O.172 (04/2005)
.
The stated error limits apply under the following conditions:
•
Sine wave modulation
•
Structured test signals (for STM-1e as described in I
TU-T Recommendation
O.172 (04/2005)
)
•
Standard filter selections
RMS jitter - Range and resolution
Refer to
for the RMS range and resolution. Measurement accu-
racy is per
ITU-T Recommendation O.172 (04/2005)
.
Automatic jitter measurements
This section provides specifications for automatic jitter measurements.
Maximum Tolerable Jitter (MTJ)
A group of up to 20 user-specified jitter frequencies (scan frequencies) can be defined.
A set of pre-defined masks per applicable standards is also provided.
Table 144
Ranges for the current values
Item
Description
Standard range
– Jitter peak-peak
– peak/-peak
– 4000 UIpp
– 2000 UIp
Table 145
Display resolution for the maximum values
Item
Description
Standard range
0.001 UIpp
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