Appendix B Specifications
Jitter specifications
SmartClass E1 Tester User’s Guide 117
Standards
Jitter is generated and analyzed in accordance with the standards
ITU-T Recommendations G.823, O.171.
Manual Jitter Measurement
Table 42 provides the specifications for the manual jitter measurement.
MTJ and FMTJ
Measurements
Table 43 provides the specifications for the maximum tolerable jitter (MTJ) and
fast maximum tolerable jitter (FMTJ) measurements.
Jitter Transfer Measurement
Table 44 provides the specifications for the jitter transfer measurement.
Table 42 Manual jitter measurement specifications
Item Description
Rx accuracy 0.05 UI or 3%, whichever is greater
Rx resolution 1/128 UI
Rx frequency range 20 Hz to100 kHz
Range of Rx jitter amplitude (UIpp) 16 UI
Rx clock source Recovered clock
Tx accuracy 0.03 UI or 3%, whichever is greater
Tx resolution 1/64 UI
Tx frequency range (nominal) 20 Hz to100 kHz
Range of Tx jitter amplitude (UIpp) 0.1 UI to 10 UI
Tx clock source Internal clock
Table 43 MTJ and FMTJ measurement specifications
Item Description
Tx accuracy 0.03 UI or 3%, whichever is greater
Tx resolution 1/64 UI
Tx frequency range (nominal) 20 Hz to100 kHz
Range of Tx jitter amplitude (UIpp) 0.1 UI to 10 UI
Table 44 Jitter transfer measurement specifications
Item Description
Rx accuracy 0.05 UI or 3%, whichever is greater
Rx resolution 1/128 UI
Rx frequency range 20 Hz to100 kHz
Tx accuracy 0.03 UI or 3%, whichever is greater
Tx resolution 1/64 UI
Tx frequency range (nominal) 20 Hz to100 kHz
Range of Tx jitter amplitude (UIpp) 0.1 UI to 5 UI
Intrinsic jitter of instrument <0.07 UI