Ethernet Bridge over E1

Ethernet Bridge over E1: FRM220A-Eoe1
  • HDLC
  • MTU 1522bytes
  • Framed / Unframed E1

The FRM220A-Eoe1 is an Ethernet over E1 Bridge for cost-effective connection of 10/100Base-TX or 100Base-FX LANs over a single E1 transport. By using standard HDLC encapsulation, the FRM220A-Eoe1 is able to transmit up to a 2M bits Ethernet over an E1 link. The FRM220A-Eoe1 supports an E1 attenuation of up to 43 dB on twisted pair or coax cable, which provides an approximate operating range up to 2km (using 22AWG). The FRM220A-Eoe1 fully meets E1 specifications including ITU-T G.703 and G.823. The FRM220A-Eoe1 features diagnostic capabilities for performing remote loopback. The operator at either end of the line may test both the FRM220AEoe1 and the line in the digital loopback mode. The Ethernet copper interface supports auto-negotiation and auto MDI/MDIX, allowing plug-and-play Ethernet connection without any additional configuration. When placed in FRM220A system, the Ethernet may be aggregated to the chassis's built in Ethernet switch. When placed in a single slot chassis and used standalone without management, the card may be configured by DIP switch.

  • Connects one Fast Ethernet over E1 links (64k~2048Kbps)
  • Built-in HDLC bridge operates at WAN rate
  • Auto-Negotiation
  • Unbalanced E1/BNC or balanced E1/RJ45
  • Fully compatible with FRM220A and FRM220 chassis
  • SNMP management with FRM220A and FRM220 chassis
  • LED Alarm indication
  • Standalone RS232 console management via CH01M

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