single port Fast Ethernet over E1 converter

single port Fast Ethernet over E1 converter

Short Description:

BD-E1-ETH is single port E1 to Ethernet converter which realize ethernet over E1 tdm conversion. E1 BNC(75ohm) and RJ45(120ohm),10/100M Base-T ethernet.            

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    BD-E1-ETH is a single port G.703 Ethernet over E1 converter (also called Ethernet over E1 TDM converter,G703 to ethernet converter) that provides high-speed LAN-to-WAN connectivity. Plugging directly into the 10/100Base-T port of a hub or LAN switch, the BD-E1-ETH provides E1 access at connection data rates of 2.048 Mbps. The G703 E1 converter is an excellent choice for internet access as well as LAN-to-LAN services.

    The E1 to ethernet converter can support mini desk type case and 19″ rack mount type case. The 19″ rack mount E1 converter can support double power (two AC or two DC or AC+DC),which strength the operation stability.


    • Ethernet port 10/100M half/full duplex auto-negociation, supporting VLAN.
    • Ethernet port interface supports AUTO-MDIX.
    • Provides 2 clock types: E1 master clock, E1 line clock.
    • Provide LAN auto reset function, run more stably.
    • Has the function of pseudo-random code testing, convenient for opening of the circuit, and can be used as an error code instrument.
    • Have three LoopBack Modes: E1 interface LoopBack (ANA),LAN interface LoopBack (DIG),command the remote LAN interface LoopBack (REM) .
    • E1 port support BNC(75ohm) dual coax and RJ45(120ohm) twisted-pair G.703 connections, and support 75ohm/120ohm adaptive ;
    • With abundant presentation function of Ethernet data, can detect real-time data communication status.
    • Can realize SNMP management in our chassis installation

    19inch rack mount E1 to ethernet converter
    19 inch Rack mount G703 E1 converter  picture


    G.703 E1 Interface

    Line Rate: 2.048Mbps±50ppm
    Line Code : HDB3
    Interface Standard: ITU-T G.703
    E1 Impedance : 75ohm(unbalance) and 120ohm(balance)Connections : dual coax and 120ohm twisted-pair (RJ45)
    Jitter tolerance : finer than G.742 and G.823
    10/100Base-T Interface 
    Rate: 10/100M, full/duplex auto-negotiation
    Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN)
    MAC Address Entiries: 4096 Entiries
    Total Memory Sizes: 64MBits SDRAM
    Physical interface: RJ45, support AUTO-MDIX


    Mini type E1 to ethernet converter: 210mm(W) × 140mm (L) x 30mm(H)
    19inch rackmount type E1 to ethernet converter:433 mm(L)×138mm(W)× 44 mm(H)

    The temperature requirement is not very strict, the device can be working well under terrible environment.
    working temperature: 0C – 50C
    relative humidity: 95%(without coagulation)
    No erosive and impregnant gas, no rising dust, no strong magnetic field disturbing
    Adapting module power, voltage range can be wide, with strong ant-jamming function.
    With good insulation, stable working status is available 
    power: -48V type, input voltage: -36V~-72V
    power: 220V type, input voltage: 165V~265V
    power consumption: <5W


    BD-E1-ETH/AC E1 to ethernet converter,750hm(BNC connector) and 120ohm(RJ45 connector),10/100Mbps ethernet,power AC 220V
    BD-E1-ETH/DC E1 to ethernet converter,750hm(BNC connector) and 120ohm(RJ45 connector),10/100Mbps ethernet,power DC 48V
    BD-E1-ETH/R/A E1 converter,750hm(BNC) and 120ohm(RJ45),10/100Mbps ethernet,power AC220V,19″Rack mount,1U high
    BD-E1-ETH/R/D E1 converter,750hm(BNC) and 120ohm(RJ45),10/100Mbps ethernet,power DC48V,19″Rack mount,1U high
    BD-E1-ETH/R/AD E1 converter,750hm(BNC) and 120ohm(RJ45),10/100Mbps ethernet,two power AC220V and DC48V,19″Rack mount,1U high

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    what is difference between TDM over IP and E1 to ethernet converter?

    Some customers often confuse in project:using TDM over IP or using E1 to ethernet converter?The document help to answer the question

    Many users often confuse the difference between TDM over IP device and E1 to Ethernet converter device. Some users choose the wrong device in the project application. The document introduce the difference between TDM over IP and E1 to Ethernet converter.
    Key words: TDM over IP TDMOIP E1 over Ethernet E1 to Ethernet converter Ethernet over E1
    E1 to ethernet converter:
    E1 to Ethernet converter (also called E1 network bridge) is to transmit Ethernet data over E1 network (PDH,SDH network etc). The Ethernet port connect to terminal device,computer,Ethernet switch,Ethernet router etc. The device抯 E1 port connect to mail network(PDH SDH etc). The typical application as below.
    ethernet over E1 converter application diagram
    TDM over IP:
    TDM over IP (TDMOIP) is to transmit the E1 data over ethernet network. It transports the legacy E1 data through the existing Ethernet or IP network. The typical application is transmit voice and data over wireless radio network.

    E1 over ethernet TDM over IP application diagram

    TDM over IP is a cost effective solution for the traditional telecom services migrate to the IP packet network. The technology need to do the E1 clock retiming and clock recovery.
    Related devices:
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