Ericsson ECN330 Guia do Utilizador descarregar pdf (Página 77)

Telephony and Multimedia Services

1/1551-HSC 901 35/3 Uen C 2005-12-02

Figure 49 Base band Solution with Integrated POTS/ISDN Filter

8.1.2 Baseband Solution with External Filter

The 10-line IP DSLAM EDN110 supports a variety of external mechanical

POTS low-pass filters and one combined ISDN splitter + low-pass filter

solution. Connected to the IP DSLAM, the POTS low-pass filter complies

with ETSI recommendations. In the network, the POTS filter is placed on

the network side of the IP DSLAM between the IP DSLAM and the

exchange, as shown in the figure below.

In Figure 50 on page 72 the EDA implementation of base band POTS is

illustrated with a filter inserted between the IP DSLAM and the local

exchange. This is only necessary when using the 10-line IP DSLAM.

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Ericsson ECN330 Guia do Utilizador Página 77