10/100M Ethernet to E1 Bridge


  • Support data conversion between 1 100M copper port and 1 E1 port
  • Support local clock and clock setting recovery
  • Support VLAN long data packet
  • Support Ethernet 10M/100M rate and full/half duplex setting
  • Two optional power supplies: 220VAC or -48VDC


MODEL7211A Series are cost effective Ethernet E1 network bridges that can implement Ethernet data transmission through E1 port. This series have 2 types of products and provides 1 100M Ethernet copper port and 1 E1 port, supports 220VAC or -48VDC. It adopts desktop mounting to meet the requirements of different scenes.

The DIP switch provides device impedance option, Ethernet port configuration, clock option, loopback test, etc. Hardware adopts fanless, low power consumption, wide temperature range design, and can be widely used to meet network requirements like extending and aggregating Ethernet in WAN or LAN and achieve interconnection and access of Ethernet device, thus solving the extending problem of Ethernet data.


E1 Port



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

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

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

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

Interface quantity: 1 E1 port

Line Rate: bidirectional 2.048Mbps synchronized data

Transmission Distance: 2Km

Clock Recovery Accuracy: ±50ppm

Interface Code Pattern: HDB3

Frame Format: un-framing

CRC Check: No

Clock Frequency: 2.048MHz

Interface Connection: BNC, RJ45

Interface Impedance: 75Ω imbalance(BNC) and 120Ω balance (RJ45,)

Interface Protection: 1500V Electromagnetic isolation


Ethernet Port  

Standard: IEEE802.3 for 10Base-T

                   IEEE 802.3u for 100Base-TX

Interface Rate: 10/100Mbps

Line Code: Manchester code

Duplex Mode: full/half duplex

Interface Connection: RJ45 

Transmission Distance: 100m

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 connection/rate/duplex indicator, E1 alarm indicator





220VAC or -48VDC

220VAC, with switching AC power supply socket

-48VDC, adopts 3-pin 5.08mm pitch terminal block









Operating temperature:-25~70℃

Storage temperature: -40~85℃

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

Atmospheric pressure: 86~106KPa


Physical Characteristic  

Shell: Plastic

Installation: desktop installation

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

Weight: 260g






3 years


Available Models E1(BNC or RJ45) 10/100M Ethernet Power Supply
MODEL7211A (220VAC) 1 1 220VAC
MODEL7211A (-48VDC) 1 1 -48VDC