XtendLan XL-EFM404 G.SHDSL .bis EFM Modem User Manual
V0.01
1 Introduction
1.1 Descriptions
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The EFM Based Network Extender (or say EFM Modem) which provides a flexible and
friendly solution for the Ethernet based services provision to subscribers by the service
provider. Additionally, this family of products provides a simple way in a back-to-back
deployment to provide point to point configuration. This allows broadband service
providers to deploy single DSL lines economically when required for low density
geographical areas or during start up phase.
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EFM Network Extender provides cost-effectively symmetrical bandwidth at rates up to
22.8 Mbps which allows service providers to deliver friendly Ethernet services rapidly.
EFM Network Extender extends the reach of Ethernet services to the sites with no fiber
access to by using bonded copper pairs. Designed with standard-based EFM technology
(2BASE-TL), the delivery of Ethernet services with EFM modem can be deployed quickly
on the existing copper plant. It is a nice application for back-to-back connection
between remote office and enterprise headquarters.
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EFM Network Extender implements the management features based on IEEE 802.3ah
standard and it enables users to significantly reduce operation expense by eliminating
unnecessary transformation between Ethernet and legacy ATM network. As based on
user-friendly Ethernet, it saves time and costs because of simple engineering task
without additional trainings costs. Packet based technology which architecture utilizes
100% packet transmission technology for optimum throughput and reliability. With a
compact form-factor design and optimization for the use over existing copper network,
EFM Network Extender reduces the initial investment cost and deployment time in
delivering higher speed Ethernet service. It provides minimized risk bearing and quick
return on investment to service providers and enterprises
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EFM Network Extender can bond up to 4 pairs and deliver up to 22.8 Mbps Ethernet
services to all users within their service area by utilizing existing copper infrastructure
and EFM 802.3ah PAF bonding technology. Service Providers and enterprises are able to
offer symmetrical high speed connectivity for transparent Ethernet service on DSLAM
backhaul, Wireless backhaul, and more.
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EFM Network Extender provides future-proof features meeting Ethernet Quality of
Service (QoS) requirements by utilizing 802.1q VLAN capabilities, four levels of
priorities, traffic flow control and rate control. This traffic management and QoS features
enable service providers to offer highly profitable and value-added services to a vast
majority of business and institutional sites.
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