unframed E1 fiber modem

•  Based on self -copyright  IC 
•  Can detect the reason of optical signal losing is that the device power-off or transmission fiber broken, and indicate on LED
•  Provide 2 impedances: 75 Ohm unbalance and 120 Ohm balance;
•  After strict testing and practical verification system, completely comply with protocol ITU-T V.35, G.703, G.704
•  Have three Loop Back Mode: E1 interface Loop Back (ANA),V.35 interface Loop Back(DIG),Command the remote,V.35 interface Loop Back(REM) 
•  Have pseudo random code test function, easily line opened, can be used as a 2M BER Tester
•  AC 220V, DC-48V, DC+24V, DC Power and Polarity-Free

  Fiber
         Multi-mode Fiber
    50/125um, 62.5/125um,
    Maximum transmission distance: 5Km @ 62.5 / 125um single mode fiber, attenuation (3dbm/km)Wave Length: 820nm
    Transmitting power: -12dBm (Min) ~-9dBm (Max)
    Receiver sensitivity: -28dBm (Min)
    Link budget: 16dBm
        Single-mode Fiber
    8/125um, 9/125um
    Maximum transmission distance: 40Km
    Transmission distance: 40Km @ 9 / 125um single mode fiber, attenuation (0.35dbm/km)
    Wave Length: 1310nm
    Transmitting power: -9dBm (Min) ~-8dBm (Max)
    Receiver sensitivity: -27dBm (Min)

    Link budget: 18dBm

 E1 Interface
    Interface Standard:      comply with protocol G.703;
    Interface Rate:             n*64Kbps±50ppm;
    Interface Code:            HDB3;
    E1 Impedance:             75Ω (unbalance), 120Ω (balance);
    Jitter tolerance:            In accord with protocol G.742 and G.823

    Allowed Attenuation:   0~6dBm

  Power
    Power supply: AC180V ~ 260V；DC –48V；DC +24V

    Power consumption: ≤5W

  Dimension          
    Product Size:          216X140X31mm(WXDXH)
    Simple packaging:    274X193X84mm(WXDXH)

    Piece Weight :        1.2KG

  Working environment
    Working temperature: -10°C ~ 50°C
    Working Humidity:        5%~95 % (no condensation)
    Storage temperature:   -40°C ~ 80°C
    Storage Humidity:         5%~95 % (no condensation)