16E1 Optical 1+1 PDH multiplexer CE, RoHS certification three years warranty 16E1 ... feature: auto adapt 10/100M, full/half duplexMDI/MDIXOpticalDefault with dual fiber, single mode, FC, 1310nm, 40kmOptical module ... to 2E1 channels 1 optional port and 2*10/100Mbps Ethernet channel .Fiber Port Bit rate:150Mps,up to ... 1 optional port and 1*10/100Mbps Ethernet channel .Fiber Port Bit rate:150Mps,up to 120km ...