... and line clock3) Support pretend random coding loop test4) E1(G.703) interface supports 120Ω (RJ-45) and 75Ω (BNC double ... -duplex / half-duplexSpecifications: 1) Interface standard: ITU-T G.703 standard and 10/100Base-T standard 2) E1 signal (BNC): in, out 3 ... ) E1 signal (RJ-45): T+, T-, R+, R-, GND4) Ethernet signal: T+, T-, R+, R-, GND5) E1 port rate: 2.048Mbps6 ...