NetVanta 800 Series
Ethernet is the undisputed, global choice for Metro Access Networks
(MANs) and Local Access Networks (LANs). However, existing copper access
networks do not facilitate an end-to-end high-bandwidth connection,
creating a bottleneck. This bottleneck is the first mile of access. This
refers to the access link (most often a TDM-based copper circuit) from
the business customer's office LAN to their service provider's MAN.
ADTRAN affords service providers the ability to remove this bottleneck
through the utilization of an improved data transmission standard. This
standard, ITU-T G.998.2, is known as Ethernet in the First Mile (EFM).
ADTRAN EFM over Copper (EoCu) defines a way to effectively and
universally bond together, lower bandwidth copper loops or pairs of
wires creating a Carrier Ethernet access connection.