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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E1-2FE interface Converter JHA-CE1fF2p (Physical lsolation)

    • Based on self -copyright IC
    • E1 supports any timeslot set, the rate is 64K-2048K
    • Can realize monitor and control of remote equipment, OAM management data did not take up user’s timeslot and save E1 bandwidth
    • Have the function of E1 interface loop back check, avoid the converter crashed because of interface loop return; Have indicator when the device is power-off or
    • E1 line is broken or lose signal;
    • Can realize 2Channel Ethernet data transmission by 1 E1 circuits
    • Inter-set dynamic Ethernet MAC address (4,096) with local data frame filtering function
    • 2Channel Ethernet rate is 1984Kbps, set up the first channel rate, the second channel Ethernet rate automatic allocation
    • The local device can forced the remote device rate follow it
    • Have the function of E1 interface loop back check, avoid the converter crashed because of interface loop return;
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PDH/Voice Multiplexer

Interface converters

Ethernet to E1 Converter

  • E1-2FE interface Converter JHA-CE1fF2p

    (Physical lsolation)


    This interface converter is based on FPGA. Multiplex 10/100Base-T Ethernet 2Channel interface to E1 interface to provide users with Ethernet access at the rate of 1984K. It is widely used in finance, securities and security departments which need to be provided two different networks, and both on a physical network can be completely separated. For example, the financial system business network, internal office network and business network can’t be linked together. This interface multiplexer can solve this problem.

    Product Photo

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    Mini  Type



    • Can set the E1 line that not to send the LINK signal to Ethernet interface while E1 line is broken;
    • The Ethernet interface supports jumbo frames (2036 Bytes)
    • Ethernet interface supports10M/100M, half/full duplex auto-Negotiation and AUTO-MDIX  (crossed line and straightly connected line self-adaptable )
    • Have Ethernet monitor self-reset function, the equipment will not dead
    • Provide 2 clock types: E1 master clock and E1 line clock;
    • Have three Loop Back Mode: E1 interface Loop Back (ANA)、Ethernet interface Loop Back(DIG)、Command the remote Ethernet interface Loop Back(REM)
    • Provide 2 impedances: 75 Ohm unbalance and 120 Ohm balance;
    • Realize monitor of remote equipment temperature and voltage from local equipment;
    • Rack type Support SNMP Network Management;




    ♦ 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


    ♦ 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-CE1fF2p
    Functional Description 2FE transmission over 1channel framed E1,ethernet support Physical lsolation 。
    Port Description One E1 interface;2*FE Interface
    Power Power supply: AC180V ~ 260V;DC –48V;DC +24VPower consumption: ≤10W
    Dimension Product Size:  216X140X31mm (WXDXH)
    Weight 1.3KG/piece


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