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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Framed E1-FE+16RS232/422/485 interface Converter JHA-CE1F1R16

    • Based on self -copyright IC
    • Can realize monitor and control of remote equipment, OAM management data did not take up user’s timeslot and save E1 bandwidth
    • E1 supports any timeslot set, the rate is 64K-2048K
    • The local device can forced the remote device rate follow it
    • Have indicator when the remote device is power-off or E1 line is broken or lose signal;
    • Have the function of E1 interface loop back check, avoid the converter crashed because of interface loop return;
    • The Ethernet interface supports jumbo frames (2036 Bytes);
    • Inter-set dynamic Ethernet MAC address (4,096) with local data frame filtering function
    • Ethernet interface supports 10M/100M, half/full duplex auto- Negotination, support VLAN
    • Ethernet interface supports AUTO-MDIX (crossed line and straightly connected line self-adaptable );
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PDH/Voice Multiplexer

Interface converters

Ethernet to E1 Converter

  • Framed E1-FE+16RS232/422/485 interface Converter JHA-CE1F1R16


    This protocol converter (interface converter) using large scale FPGA design, providing a framing E1 interface and an Ethernet interface and 16*RS232/422/485, it is possible to achieve 10 / 100Base-T Ethernet data over E1 channels transmission, is a high performance, self-learning Ethernet bridge. The device serves as an extension of Ethernet devices, use of existing networks (PDH / SDH / microwave, etc.) provided by the E1 channels to interconnect both ends of the lower cost Ethernet and serial interfaces. Built-loop test equipment capabilities to facilitate the opening and routine maintenance works.

    Product Photo

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      19inch 1U Type


    • Have Ethernet monitor self-reset function, the equipment will not dead
    • Provide 2 clock types: E1 master clock and E1 line clock;
    • Provide 2 impedances: 75 Ohm unbalance and 120 Ohm balance;
    • Support SNMP Network Management
    • Serial Data Interface can be RS232/RS422/RS485/TTL optional
    • Serial channel can transmit adaptable serial data asynchronously 300 Kbps-19200Kbps baud rate
    • Serial data multiplexing in E1 support ITU-T R.111 jumping coding mode
    • The local RS232 serial data can command the remote RS232 serial data loop-back to the local. This loop-back in the outer ring of RS232 data interface, you can test the RS232 interface chip without damage
    • 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




    ♦ 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


    ♦ Serial Interface



    EIA/TIA-232 RS-232 (ITU-T V.28)

    EIA/TIA-422 RS-422 (ITU-T V.11)

    EIA/TIA-485 RS-485 (ISO/IEC8284)


    Serial Interface

    RS-422: TXD+, TXD-, RXD+, RXD-, Signal Ground

    RS-485 4 wires: TXD+, TXD-, RXD+, RXD-, Signal Ground

    RS-485 2 wires: Data+(Correspond TX+), Data-(Correspond TX-), Signal Ground

    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-CE1F1R16
    Functional Description 1channel framed E1 -FE +16RS232/422/485 converter,With E1 loopback detection function
    Port Description One E1 interfaces,16 data interfaces (RS232/422/485)
    Power Power supply: AC180V ~ 260V;DC –48V;DC +24VPower consumption: ≤10W
    Dimension Product Size:  19inch 1U type  483X138X44mm (WXDXH)
    Weight 2.0KG/piece


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