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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4*10/100/1000TX – 28*100FX | Fiber Ethernet Switch JHA-F28GE4

    • Support 28 100FX Fiber Port and 4 10/100/1000Base-T(X) Ethernet port.
    • It supports TCP / IP, PPPOE, DHCP, ICMP, NAT protocol.
    • Ports support Auto-MDI / MDIX auto-flip.
    • Support store and forward mode.
    • Input Voltage: 100~240VAC,50/60Hz


Unmanaged Fiber Ethernet Switch

Fiber Ethernet Switch

  • Introduction

    JHA-F28GE4 series is is a 10/100M self-adaptive Fast Ethernet fiber switch, with 24 100M Fiber port and 4 10/100/1000Base-TX self-adaptive Ethernet RJ45 interfaces. The product design conforms to the Ethernet standard, adds lightning protection and anti-static protection measures, and has a wide range of operating temperature from -20°C to +70°C, with stable and reliable performance.
    The device can be widely used in various broadband data transmission fields such as smart buildings, smart cities, smart communities, smart transportation, telecommunications, security, financial securities, customs, shipping, electricity, water conservancy and oil fields.



    ♦Unique IC solutions, the chip temperature low, to get rid of plus cooling system, flow control and reduce broadcast storms.

    ♦High-quality integrated photovoltaic module provides good optical properties and electrical properties to ensure reliable transmission, long life.

    ♦Operating Mechanism broadcast filtering, address auto-learning and auto-update feature and store and forward.

    ♦It supports up to 1916 byte long data packet transmission.

    ♦Missing link to provide remote diagnostics, electrical interface and optical port link link connection diagnostics, dynamic data transmission, full-duplex / half duplex, speed light, easy installation and later maintenance. 



    Fixed Port

    28*100Base FX+4*10/100/1000Base TX

    Power interface

    220V Connector



    Transmission Distance

    Cat5 100m

    Multimode, Single/Dual-fiber 2Km

    Single Mode, Single-fiber 20/40/60/80/100Km

    Single Mode, Dual-fiber 20/40/60/80Km

    Ethernet Port

    10/100M RJ45 Ports, Connection STP / UTP Cat5/Cat5e Cooper Cable

    Fiber Port

    Multimode, Dual-fiber SC/ST/FC (Diameter 50/125, 62.5 / 125μm)

    Single Mode, Single Fiber, SC/ST/FC (Diameter 9/125μm )

    Single Mode, Dual-fiber SC/FC (diameter 9/125μm )

    Exchange Attribute

    Conversion Method: Media conversion, store and forward / straight in

    MAC Add: 2 K

    Switching capacity:16G

    Full duplex state: flow control, half-duplex: backpressure mode

    Store and Forward: 9.6us, Straight In: 0.9us

    MTBF:50,000 hours

    Network Topology

    Ring topology:Not Support

    Star topology:Support

    Bus topology:Support

    Tree Topology:Support

    LED Indicator

    P1-P2:Power Supply

    1~28:Fiber Port Indicator

    29~32:Ethernet Port Indicator

    Power Supply

    Power Input: 100~240VAC,50/60Hz

    Full Load: <15 W

    Working Environment

    Operating Temperature: -20~70℃

    Storage Temperature: -20℃~+70℃

    Storage Humidity: 5% to 95% non-condensing


    440*155*55mm ( L * W * H ), 1U Type




    Surge protection of Power:IEC 61000-4-5  Level 3(2KV)(8/20us)

    Surge protection of Ethernet port:IEC 61000-4-5  Level 4(4KV)(10/700us)

    ESD:IEC 61000-4-2  Level 4 (8K/15K)

    Free fall:0.5m


    Model No.

    Description of Goods


    28 100Base-FX and 4 10/100/1000Base-T(X), 1U Type



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