... V35 optical fiber modem PDH, fiber mux, fom, fiber multiplexer, optical multiplexer fiber converter, media converter Optical Fiber ModemOP-FE1 Fiber Modem Modulate 1 ... ,048Kbps.OP-V35 Fiber Modem Modulate 1 V.35 signal to single or multi mode fiber, transmission rate from ... 64Kbps to 2,048Kbps.TECHNICAL SPECIFICATION:(1)G.703 E1 interface ...