Zhone EtherXtend 3300 Series, User Manual

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EtherXtend User’s Guide
11
O
VERVIEW
The EtherXtend devices are next-generation Ethernet-enabled customer
premises equipment (CPE). EtherXtend provides 4-port and 8-port models
that perform the functions of a network extender by lengthening the reach of
Ethernet packets. EtherXtend allows Ethernet packets to pass over existing
copper wires that link the service provider (a central office, street cabinet,
pole, or tower) to a subscriber’s CPE. This distance is known as Ethernet in
the First Mile (EFM). EFM is a set of specifications that allow users to run
Ethernet protocols over previously unsupported media such as single pairs of
copper wires in subscriber access networks. EtherXtend EFM is covered by
IEEE standard 802.3ah.
This chapter includes the following topics:
•
Product models on page 12
•
Product description, page 12
•
Technology description, page 13
•
EFM media, page 14
•
Ethernet services, page 15