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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2*10/100/1000TX – 1*1000X SFP Slot | Fiber Media Converter JHA-GS12

    • Support 1 1000X SFP Slot and 2 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:DC5V1A .
  • Model No.

    Description of Goods


    1 1000Base-X SFP and 2 10/100/1000Base-T(X) RJ45 Port, LC Connector


Fiber Ethernet Switch

Unmanaged Fiber Ethernet Switch

  • Features

    Modular power supply design, function board with separate power supply design, easy to post-maintenance.
    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.
    Ultra-low power consumption of less than 2.5W (Input: AC110 ~ 260V), low heat, stable operation for a long time.



    JHA-GS12 series is complies with IEEE802.3 standards, It is designed to convert data signal between 1000Base-X SFP and 10/100/1000Base-TX Ethernet. 
    The media converter is connected between fiber cable and twisted cable, extend your Ethernet network beyond the 100-meter limit imposed by copper cable.
    This converter model can be used as slide-in module to the 14-slot 19" Rack-Mount Chassis.
    Converter is transparent to all protocols, can be used all all areas as Fiber to The Home, Fiber to the Business or Fiber to The Curb.



    Protocol Standard

    IEEE802.3, IEEE802.3u, IEEE802.3z, IEEE802.3ab, IEEE802.1q, IEEE802.1p QoS,IEEE802.1d Spanning Tree



    Transmission Distance

    Cat5 100m

    Multimode, Single/Dual-fiber 550m

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

    Single Mode, Dual-fiber 20/40/60/80/100/120Km

    Ethernet Port

    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: 1 K

    Cache: 1 Mbit

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

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

    BER: <1/1000000000

    LED Indicator

    PWR( Power Supply )


    FDX ( Ethernet port full / half duplex mode )

    TX LINK/ACT ( Ethernet port communication / action )

    1000 ( 1000/100/10M transmission rate )

    FX ( Optical signal )

    Power Supply

    Power Input: DC5V 2A

    Full Load: <2.5 W

    Working Environment

    Operating Temperature: -20~70℃

    Storage Temperature: -40~70℃

    Storage Humidity: 5% to 90% non-condensing


    94*71*26mm ( L * W * H )


    CE, FCC, RoHS



  • Model No.

    Description of Goods


    1 1000Base-X SFP and 2 10/100/1000Base-T(X) RJ45 Port, LC Connector



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