10/100M Ethernet to 4×E1 Bridge


  • Support local / remote loopback test
  • Support local clock and recover clock setting
  • Support Ethernet 10M/100M rate and full / half duplex setting
  • Support 220VAC power supply


MODEL7210 Series is cost effective Ethernet connection and bridging device which implements Ethernet data bridging through 4 E1 ports. It could be called as Ethernet to 4 E1 bridge or Ethernet to 4 E1 protocol converter. Its operating principle is turning Ethernet frame format into E1 frame format and recovering it at the opposite end, achieving Ethernet transmission on E1-based transmission network.

It adopts FPGA technology design. Its E1 port is in accord with ITU-T G.703 protocol, and Ethernet port is in accord with 10/100Base-T(X) standard and supports 10/100Mbps Ethernet speed. Ethernet port supports 10M/100M self-adaption and full/half self-adaption, and automatic detection of available channel number in 4-way E1 line, including automatic bandwidth allocation. 1-4 way E1 line allows 16ms maximum transmission delay of data frame order between any two E1 lines, ensuring that device could operate stably and reliably under all kinds of complex network situation.


E1 Port



Line Rate: 2.048Mbps×4=8.192Mbps

Transmission Distance: 2Km

Clock Recovery Accuracy: ±50ppm

Allowable Transmission Delay: 10ms

Interface Code Pattern: HDB3

Frame Format: un-framing

CRC Check: No

Clock Frequency: 2.048MHz

Interface Connection: BNC

Interface Impedance: 75Ω (BNC)

Interface Protection: 1500V Electromagnetic isolation

Interface Protocol Standard: aligns with the recommendation of ITU-TG.703 

Output Jitter Transfer: meets the recommendation of ITU-TG.735

Input Jitter Tolerance: meets the recommendation of ITU-TG.823

Output Jitter: meets the recommendation of ITU-TG.823


Ethernet Port  

Interface Rate: 10/100Mbps

Transmission Distance: 100m

Protocol Standard: IEEE802.3 (support VLAN function)

Line Code: Manchester code

Operation Mode: 10/100Base-T(X) full/half duplex

Interface Connection: RJ45

Interface Protection: 1500V Electromagnetic isolation

Connection Cable: Connect to PC through crossover cable

                                   Connect to HUB/SWITCH through straight through cable


LED Indicator  

Power indicator, Ethernet port indicator, E1 indicator, loopback test status indicator














Operating temperature range:-25~70℃

Storage temperature range: -40~85℃

Relative humidity: 5%~95%(no condensation)

Atmospheric pressure: 86~106KPa


Physical Characteristic  

Dimension (L x W x H): 227.4mm×146.3mm×42.7mm

Shell: Plastic

Weight: 260g






3 years


Available Models E1(BNC) E1(BNC or RJ45) 10/100M Ethernet Power Supply
MODEL7210 4 0 1 220VAC