Viavi T-BERD MTS 5800, Руководство по началу работы

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Appendix A Specifications
Jitter and Wander specifications
T-BERD/MTS/SC Getting Started Guide
Page 234 22046537, Rev. 016 March 2018
Extended range
Table 156 provides the extended range for the measurement filters.
Results display
Positive and negative jitter amplitudes are measured.
Current and maximum values
The current and maximum values are displayed continuously or shown as a graph.
Table 157 describes the ranges for the current and maximum values.
Resolution
Table 158 describes the resolution for the current and maximum values, display and
logged results.
Error limits for jitter measurement
The error limits for displayed jitter meet the requirements of ITU-T Recommendation
O.172 (04/2005) and O.173 (03/2003) .
The stated error limits apply under the following conditions:
• Optical input level in the range -10 dBm to -12 dBm (scrambled NRZ signal code)
Table 156 Extended ranges for measurement filters
Item Description
High-pass filter characteristics
(-3 dB cut-off frequency) typically 25 Hz
Low-pass filter typically 400 kHz
Table 157 Ranges for the current and maximum values
Item Description
Standard range
– Jitter peak-peak
– peak/-peak
– 50 UIpp
– 25 UIp
Extended range
– Jitter peak-peak
– peak/-peak
– 800 UIpp
– 400 UIp
Table 158 Resolution for current and maximum values
Item Description
Standard range 0.001 UIpp
Extended range 0.1 UIpp