Shenzhen JHA Technology Co., Ltd is one of the leading manufacturers of hardened Ethernet, PoE, and fiber connectivity products specifically designed for harsh and demanding environments.


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4E1 PDH Fiber Multiplexer JHA-CPE4m

    • Based on self -copyright IC
    • Modular wide dynamic optical detector
    • Uses standard 2 wire telephone (non-telephone handles) set as engineering order-wire hotline(optional)
    • E1 interface comply with G.703, adopts digital clock recovery and smooth phase-lock technology
    • When optical signal lost, it can detect the remote device is power off or fiber is disconnected, and indicates alarm by LED
    • The local device can view the remote device working condition
    • Provide command the remote interface Loop Back, ease line maintenance
    • The transmission distance is up to 2-120Km without interruption
    • AC 220V, DC-48V, DC+24V can be optional
    • DC-48V/DC+24V power supply with automatic polarity detection function, when installed without distinction between positive and negative
  • 44

    75 ohm 4*E1 PDH


    120 ohm 4*E1 PDH



PDH Multiplexer

PDH/Voice Multiplexer

General Type PDH Mux

  • 4E1 PDH Fiber Multiplexer JHA-CPE4m


    This device provides 1-4* E1 interface , Standard 2 wire telephone as engineering order-wire (optional). It is very flexible. It has alarm function. The work is reliable, stable, and low power consumption, high integration, small size.

    Product Photo



    Front Panel



    75 ohm Back Panel


    120 ohm Back Panel



    ♦   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:                         2048Kbps±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


    ♦  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)



    Model Model Number:JHA-CPE4m
    Functional Description 4E1 PDH,order wire phone, Desk-Top Type,(Standard telephone interface, non-telephone handles)
    Port Description One optical port,4 E1 interface (75/120 ohms)
    Power Power supply: AC180V ~ 260V;DC–48V;DC+24VPower consumption: ≤10W
    Dimension Product Size: Desk-Top Type   216X138X41mm(WXDXH)
    Weight 1.25KG/PCS


  • 44

    75 ohm 4*E1 PDH


    120 ohm 4*E1 PDH


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