Ericsson EDN312 Guia do Utilizador descarregar pdf (Página 9)

Introduction to the Nodes

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

2.5.2 ESN108

The ESN108 can be used whenever aggregation and powering of up to

eight IP DSLAMs is needed. The most typical use is in a small remote site,

where the ESN108 will also supply the IP DSLAMs with PoE as illustrated

in Figure 2 on page 5.

Broadband

Network

Ethernet

Switch

EDA Small site solution

FE/GE

EDA Access

Domain

ESN108

Router/

BRAS

IP DSLAMs

-48 VDC

Figure 2 ESN108 Use in an EDA System

Note that the ESN108 can use either electrical or optical uplink.

2.5.3 EXN104 and EPN102

The EXN104 can be used for utilizing unused copper lines to a remote site.

It can be used together with other FE to E1 or T1 converters. However,

better utilization of the four lines can be achieved when the E1 or T1 lines

are terminated by an EXN104 on both sides. Figure 3 on page 6 illustrates

a typical example of the EXN104 together with an EPN102, which supplies

the EXN104 (and the EDN312) with PoE.

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Ericsson EDN312 Guia do Utilizador Página 9