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Enhanced Managable Fast Ethernet over 4E1 Protocol Converter
Enhanced Managable Fast Ethernet over 4E1 Protocol Converter support support local management and remote centralized management.Users can manage the 4E1 ethernet converter by Telnet,WEB management or centralized management software.

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The 4E1-4ETH Protocol Converters (Ethernet over TDM) are capable to support four network devices or other devices for remote centralized management. Remote users can perform centralized management for 4E1-4ETH series devices by Telnet, WEB Server or centralized management software. It also can remotely perform such actions like restart and upgrade the 4E1-4ETH series devices; The device also can be managed by local console mangement.

The devices are widely used for remote management of devices room, servers, routers and other key equipment in the situation of industrial control, water treatment, radio and television, public facilities and unattended room management.



1.    Support 100-220V AC or 48V DC Power Input

2.    Build in intelligent switch fabric, provide 4 fast Ethernet ports

3.    Support packet length up to 2047 Bytes

4.    Provide up to 2K MAC address entries

5.    Support IEEE802.1Q VLAN

6.    Support QinQ double tagging

7.    Support GFP for 4xE1 mode.

8.    GFP-F encapsulation comply with ITU-T G.7041 standard

9.    Support LCAS and VCAT function comply with G.7042 and G.7043

10.  Provide statistics for each ports

11.  Support Console or telnet CLI management

12.  Support SNMP(v1/v2c) and Web management

13.  Support software and firmware upgrade

14.  Support E1 floated or connected to PGND by switch

15.  75Ωand 120Ωimpedances are selected by switch 



E1 Interface

120 Ω, balanced, RJ-45

75Ω, unbalanced, BNC

  • Data Rate and Line Code:2.048 Mb/s , HDB3

  • Line Protection:

    15 KV ESD protections

    6KV/42Ω surge protection 

Ethernet Interface

  • Number of Ports:



  • Type: 10/100 Mbps, auto-negotiation, full/half duplex, flow control, MDI/MDX crossover

  • Compliance: Relevant sections of IEEE 802.3

  • Max Frame Size : 2047 bytes

  • Connector and Electrical Cable Type: RJ-45 and SFP

  • Line Protection:

    Built-in 1.5 KV Magnetic Isolation Protection

    6KV/42Ω surge protection

Encapsulation Protocols

Management Ports

  • Console Port

    Interface standard: RS-232

    Connector: RJ-45

    Data rate: 115.2 kbps

    Environmental Limits

  • Operating Temperature:  0 to 50°C

  • Storage Temperature:  -40 to 70°C

  • Ambient Relative Humidity: 10 to 95% (non-condensing)

Power Requirements

  • Input Voltage: 


    DC:-48VDC (36-72VDC)

    AD: AC/DC dual power supply universal input

  • Power Consumption: <5 watts 

Typical Applications

The device can be used in a point-to-point application or in a hub-and-spoke topology, operating opposite BD-4E1-4ETH-EN and third-party gateways.

Typical applications include:

  • Ethernet private Line/LAN services

  • IP DSLAM, cellular IP, and WiMAX base station backhauling 

  • Interoffice or enterprise LAN connection.

enhanced 4E1 ethernet converter application

Ordering information

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