User guide

The EDA Components
1/1551-HSC 901 35/3 Uen C 2005-12-02
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4.1.4 The EDN288 IP DSLAMs
With the 288-lines IP DSLAM Ericsson introduces the new and important
concept of the Ethernet Access Node (EAN). In order to understand the
function of the EDN288 it is important to understand the EAN concept,
therefore the EAN is described in detail in the following.
The EDN288
The EDN288 is an EAN node, and available in the variant EDN288p and
EDN288xp.
Figure 10 The 288-line IP DSLAM - EDN288
The EDN288p is a complete all-in-one system for 288 lines and consists of
24 12-lines EDN312p IP DSLAMs and an Ethernet Controller Node
(ECN330/ECN320) fully cabled and assembled in a subrack prepared for
installation in a standard 19” or ETSI cabinet, see Figure 10 on page 19.
The EDN288xp is similar to the EDN288p but supplied with 24 12-lines
EDN312xp IP DSLAMs.
Furthermore the EDN288xp can be extended with an extra
ECN330/ECN320, which makes it possible to enable EAN redundancy or
link aggregation, depending on how cabling is performed. This is explained
in more detail below.