... Tx Clock SourceInternal, Interface and External 2MHz clock or signal Pulse Mask MeasurementComply with G.703Jitter MeasurementComply with O.172Frequency MeasurementAccuracy ... Slip.Error InjectionType: BIT, FAS, CRC4, CODE, E-BITSingle, Fixed Rate : 10-2, 10-3, 10-4, 10-5, 10-6 ...