... and monitoringFrequency and offset measurementClock source: Internal, Interface selectableMain Features:-Handheld design and easy-to-use- ... , PCM30CRC, PCM31, PCM31CRCReceive Sensitivity> -43dBTx Clock SourceInternal, Interface and External 2MHz clock or signalPulse MaskMeasurementComply with G.703Jitter ... InterfacesV.24, V.35, V.36, X.21, RS-449, RS-485, EIA-530, EIA-530AData RateASYNC300, 600bit/s, 1 ...