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4E1 to 4Ethernet Protocol Converter

4*10/100BT-4E1 converter uses reverse multiplexing technology to transmit 10/100BaseT data with bonding multi E1 channels, realizing conversion between 4 E1 channels and Ethernet interface. It can transmit signals point-to-point from E1 channel to RJ45 interface to realize connection between E1 channel and Ethernet. Being different from general long-distance bridge, this converter supports flexible configuration of 1 to 4 channels E1 and can detect the number of E1 channel and choose available channel. In the meantime, certain difference of transmitting delay is allowed among E1 channels. Line rate is 1968Kbit/s for one E1 channel and bandwidth can reach 15744Kbit/s for 4 E1 channels. When used in 10/100Mbps half/full duplex mode, this equipment can be connected with Ethernet switch or hub (integrated circuit machine) to expand transmitting distance and application scope of Ethernet by making full use of large number of E1 channels in current telecommunication network. It is an excellent solution for connecting Ethernet broadband. This product can be applied in many fields such as connection of LAN and end offices, video ordering (VOD), remote monitor and E1 interface of switches.

Product Description

 4*10/100BT4E1 converter uses reverse multiplexing technology to transmit 10/100BaseT data with bonding multi E1 channels, realizing conversion between 4 E1 channels and Ethernet interface. It can transmit signals point-to-point from E1 channel to RJ45 interface to realize connection between E1 channel and Ethernet. Being different from general long distance bridge, this converter supports flexible configuration of 1 to 4 channels E1 and can detect the number of E1 channel and choose available channel. 


      ■Realizes transparent transmission of Ethernet data in 1 to 8 E1 channels. 

      ■10M/100M Ethernet, full/half duplex auto-adapt, supports VLAN.

      ■Ethernet port supports AUTO-MDIX (cross over and straight through auto-adapt).

      ■Setting CRC alarm limitation to auto isolate lines with low transmitting quality (being cut single-directionally); when

error code rate of one direction in 2M branch exceeds the limitation, this direction is cut and the other direction will not be affected, namely the two transmitting directions of Ethernet can be unsymmetrical.

      ■Have 2 loop back functions: E1 local loop, E1 remote loop.

      ■Support Dynamic Ethernet MAC address (4096) with local address filter function.

      ■E1 interface compatible with ITU-T G.703, and G.823. not supporting signal timeslot.

      ■E1 interface has internal clock recover circuit and HDB3 code/decode circuit.

      ■Supports E1 channel hot plug, and auto detect effective E1 channels data transmission will not be cut.

      ■Supports 1 to 4 E1 channels customized configuration, auto detect the number of E1 channels and select the

available E1 when resetting.

      ■Supports resetting remote system from local system.

      Having Ethernet monitor auto reset function.


Parameter and Specifications

E1 interface

Standard: E1 interface Compatible with G.703 standard.

Rate: 2.048Mbit/s±50ppm

Coding: HDB3

Impedance: BNC(75Ω)

Connector: RJ45 (120Ω)

Jitter Performance: According to G.742 and G.823 



Rate: 10/100M, full/half duplex auto-adapt.

Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN)

MAC address table: 4096 MAC addresses.

Ethernet buffer: 64Mbits SDRAM

Physical interface: RJ45, support AUTO-MDIX (cross over and straight through auto-adapt)



19inch 483*140*50

Operating environment

Voltage: AC180V-240V

Power Consumption: <=5 Watts

Working temperature: 0°C~50°C 

Storage temperature: -15°C~+70°C

Humidity: 95%