E1 BERT is mainly used for measuring of the error rate ... V.24/V.28/RS232, V.35, V.36, RS449, X.21, RS485, EIA530, EIA530A, and equidirectional 64kbit/s interfaces.For Datacom: V.24/RS232/V.28, V.35, V ... , and artificial codeInput ImpedanceDatacom Inde(1) Data interface type: V.24, V.35, V.36, X.21, RS-449, RS-485, EIA-530 ... Temperature: -30+70 Humidity: 5%90%, non-condensing 2M Transmission E1 BER Tester