APC IP DSLAM Betriebsanweisung PDF herunterladen (Seite 8)

EDA 1200 System Overview

technologies and services can be mixed within the same network, and managed

by the same management system – the Public Ethernet Manager (PEM).

Services

EDA 1200 supports true Triple Play services:

• Video – all video services are IP based, and offer the same services

regardless of the drop technology used. The Internet Group Multicast

Protocol (IGMP) is used for efficient use of the network.

• Voice – the voice services are telephony services. Different drop

technologies offer different types of telephony, with regard to both the

perceived quality and the supplementary services.

• Data – various forms for data services are available, from mere Internet

access to advanced services such as LAN to LAN services. The same

services can be supplied regardless of the drop technology used.

Drop Technologies

The various drop technologies allow for optimization of the network, according

to the requirements of the End-users and the existing network. Both Data and

Video services are based on the same broadband connection. The different

drop technologies that can carry these services each have their advantages and

shortcomings with regard to reach, bandwidth and cost. The principle relations

of bandwidth and reach for different drop technologies are illustrated in Figure 2

on page 5. Where Fiber to the Home (FTTH) gives the highest bandwidth for

the longest distance, it is also by far the most expensive drop technology (if a

new connection to the customer has to be made). On the other hand, DSL lines

can be bonded, thus achieving high data rates on existing copper lines.

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APC IP DSLAM Betriebsanweisung Seite 8