E1 BERT is mainly used for measuring of the error rate of data communication, ... Analyzers is mainly used for measuring of the error rate of data communication and for the analysis of line ... fault and causes, and very suitable for the parameter measurement and routine maintenance testing of ... , RS485, EIA530, EIA530A, and equidirectional 64kbit/s interfaces.For Datacom: V.24/RS232/V.28, V.35, V ...