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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8E1+4FE(Physical isolation) JHA-CPE8WF4 PDH Fiber Multiplexer

    • Based on self-copyright IC
    • 1-4 physical isolation 10/100M Fast Ethernet interface , every FE Ethernet independent wire speed is 100M,total bandwidth is 4*100M; Provide Console manage interface (RS232)
    • Provide two fiber interface 1+1 protect(APS)function
    • Ethernet interface rate is 10/100M, half/full duplex Auto-Nego
    • Ethernet package support jumbo frames,up to 10240 byte
    • E1 interface comply with G.703, adopts digital clock recovery and smooth phase-lock technology
    • Uses standard 2 wire telephone (non-telephone handles) set as engineering order-wire hotline(optiona
    • When optical lose signal, 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, support local E1 Loop Back function, support E1 LOS and AIS alarm ,ease line maintenance
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PDH/Voice Multiplexer

PDH Multiplexer

E1+ Ethernet PDH Mux

  • 8E1+4FE(Physical isolation) JHA-CPE8WF4

    PDH Fiber Multiplexer


    This series of equipment is the company developed the PDH fiber transmission dedicated VLSI developed on the basis of point to point optical transmission equipment. Provide 1-8 E1 interfaces, primary and backup fiber optical interface connector, 1-4 physical isolation 10/100M Fast Ethernet interface (independent four-wire speed 100M,total bandwidth is 4*100M), as well as two business expansion interface. 2 Extended service interface can be used as RS232 / RS485 / RS422 asynchronous data , the application is very flexible. Optional one digital service telephone, the application is very flexible. With a sound alarm function, the whole stable, reliable, low power consumption, high integration, small size.

    Product Photo

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    • Support SNMP manager (SNMP agent inside)
    • AC 220V, DC-48V, DC24V can be optional
    • DC-48V/DC24V power supply polarity detection function, 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: 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


    ♦ Ethernet interface (10/100M)

        Interface rate:    10/100 Mbps, half/full duplex auto-negotiation

       Interface Standard:    Compatible with IEEE 802.3, IEEE 802.1Q (VLAN)

       MAC Address Capability: 4096

       Connector: RJ45, support Auto-MDIX


    ♦ 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-CPE8WF4
    Functional Description 8E1 PDH, 4 * Ethernet physical isolation(total Band width 4*100M),order wire phone,19”inch 1U,with Console , SNMP,1+1 Back up Optic fiber
    Port Description 1+1 optical port, 8*E1 interfaces (75/120ohms), 4 FE interfaces,1*RS232 Console interface,1*SNMP Ethernet interface, one engineering order-wire telephone interface
    Power Power supply: AC180V ~ 260V;DC –48V;DC +24V


    Power consumption: ≤10W

    Dimension Product Size: 19 inch 1U   483X138X45mm(WXDXH)
    Weight 3KG


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