Model: SDH-1620A SDH/PDH Transmission AnalyzerOverview:The SDH-1620A is an advanced and handheld SDH/PDH transmissionanalyzer, which integrates on-line and off-line test of STM-1(155M) and E1 (2M)and tests of STM-4 (622M), STM-16(2.5G) into one package. Being highlyaffordable, easy-to-use and scalable, this powerful unit is ideal for installationand maintenance testing over the SDH/PDH transmission and accessnetworks. Functions:BERT: BERT test for PDH and SDH and error performance analysis per   G821, G826, G828, G829, M2100 and (or) M2101; Directly and   automatically compare the test results with standards. Anomaly/defect testing: Tx-end transmitting anomaly/defect events and Rx-end receiving anomaly/defect events with record and statistics; recorded events displayed in chart and/or graphics and supporting filter selection OverheadRead More →