Ericsson EDN312 Guía de usuario descargar pdf (Pagina 8)

Introduction to the Nodes

4/1553-HSC 901 101/2 Uen B 2009-02-27

2.4 EPN102

EPN102 is a Power over Ethernet (PoE) node.

It is built as a crossed Ethernet connection that

can feed two other EDA nodes with PoE.

EPN102 distributes -48V DC to EDA nodes

over free wires in a CAT5 Ethernet cable.

2.5 Using the Nodes in the Network

The EDA Box nodes can be used in different scenarios and combinations

to suit a specific solution.

2.5.1 EDN312

As opposed to many traditional DSLAMs, the EDN312 also terminates the

ATM layer used on top of the ADSL connections, thus interfacing directly to

the switched Ethernet within the Access Domain. The EDN312 bridges

between the switched Ethernet and the Ethernet at the customer premises,

see Figure 1 on page 4, where the IP DSLAM is used in a medium subrack

solution.

Customer Premises

Local Loop

CPE

Modem

Access Domain

DSLAMs

Router/

BRAS

Figure 1 Bridging the Access Domain and the CPE Ethernet

The IP DSLAM can be used as a stand-alone node, aggregated by a

simple PoE switch and controlled directly by PEM, as part of an Ethernet

Access Node (EAN) where it is controlled by the Ethernet Controller Node

(ECN).

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Ericsson EDN312 Guía de usuario Pagina 8