... into electrical signals of the appropriate interface such as G.703 & V.35. This fiber optic modem ... up to 64 Kbps.Features1.Lucency transfer E1(G.703) protocol2.Support optic fiber loop and E1 ... Multi-mode 2KM, signal-mode 20KMCommunication Interface standardAccord ITU-T G.703 protocolE1 signal (BNC) IN, OUT E1 signal ... (RJ-45) T+, T-, R+, R-, GND Optic fiber signal TX, RX ...