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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Serial to E1 Converter JHA-CE1R1

    • Based on self -copyright IC
    • Have the ability to automatically detect the baud rate of serial port signal
    • Automatically test the reason of the device matt is that the device is power off, or E1 line is broken. And then indicate on the LED.
    • Serial port interface lightning-protection reached IEC61000-4-5 (8/20μS) DM(Differential Mode): 6KV, Impedance (2 Ohm),CM(Common Mode): 6KV, Impedance (2 Ohm) standard
    • Provide 2 impedances: 75 Ohm unbalance and 120 Ohm balance;
    • Support SNMP Network Management;
    • Serial channel can transmit adaptable serial data asynchronously 300 Kbps-921.6Kbps baud rate
    • Serial data multiplexing in E1 support ITU-T R.111 jumping coding mode
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PDH/Voice Multiplexer

Interface converters

Serial to E1 Converter

  • E1-RS232 Converter JHA-CE1R1


    This interface converter is based on FPGA, providing one E1 interface and one RS232 serial interface, 1Channel RS232 transmission via E1 interface. The product breaks through contradictions between traditional serial interface communication distance and communication rate, besides, it also can solve electromagnetic interference, ground ring interference and lightning damage. The device greatly improves reliability, security and confidentiality of data communication. It is widely used for various industrial control, process control and traffic control occasions, especially for Bank, and Power and other sectors and systems which have special requirements of electromagnetic interference environment. Serial interface communication rate is up to 512KBPS.

    Product Photo

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                                       Mini Type





    ♦ E1 interface 

    Interface Standard: comply with protocol G.703;

    Interface Rate: 2048Kbps±50ppm;

    Interface Code: HDB3;

    Impedance: 75Ω (unbalance), 120Ω (balance);

    Jitter tolerance: In accord with protocol G.742 and G.823

    Allowed Attenuation: 0~6dBm


    ♦ Serial interface 


        EIA/TIA-232 RS-232 (ITU-T V.28)
        Serial Interface
        RS-232: RXD, TXD, Signal Ground


    ♦ 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-CE1R1
    Functional Description E1-RS232 Converter , Used in pairs , RS232 rate up to 512Kbps
    Port Description One E1 interfaces, 1 data interfaces (RS232)
    Power Power supply: AC180V ~ 260V;DC –48V;DC +24VPower consumption: ≤10W
    Dimension Product Size: 216X140X31mm (WXDXH)
    Weight 1.3KG/piece


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