... modem fiber converter, optical converter PDH, fiber mux, fiber multiplexer optical multiplexer OptiMux 16E1+4ETH+RS232 PDH Fiber ConverterProduct functionThe OPTIMUX is part ... G.742 and G.823. 10/100 Base-T interface4*ETH interface, accord with IEEE802.3,802.3u, default configure is ... MechanicsLength Height Width (Depth): 483mm×44.45mm×200mmWeight: 2.5kg 16E1 fiber converter