the ORJ-1310 series optical repeater is the small HFC network optical fiber transforms for satisfying in designs, is fiber optics transmission the light signal is weak when 1310nm in the input light repeater, after light repeater receive, the re-radiation strong power continues to transmit, achieves the predetermined transmitting range. The unique radio-frequency signal predistortion processing electric circuit, guarantees the high grade light signal output. two, function characteristic uses belt electro-optic isolation and so on American ORTEL, Japanese Fujitsu distribution feedback type DFB laser to use Philips Corporation electro-optic transformation module APC (luminous power automatic control) the electric circuit and ATC (automatic temperature control) electric circuit uses the wide scope, high efficiency long life high quality switching circuit the predistortion processing electric circuit 1GHz wide band to transmit the platform to design