Vanguard 342 Manuel d'installation télécharger pdf (Page 33)

About the Vanguard 342 1-13

Target Applications

Application Matrix This table describes the application types shown in Figure 1-5 and lists the various

daughtercards used for connectivity over a private or public frame relay network:

Application

Type

Daughtercard

Used

Application Description

Branch access to

Central Office

DSU DIM, FXS/FXO

and ISDN

Daughtercards

The Vanguard 342 supports voice, video and data traffic

between the branch and central office over private or

public network. The FXS/FXO Daughtercard supports

telephones, PBX, and faxes. Connect a telephone or

PABX to one FXS port on the FXS/FXO Daughtercard

and all branch telephones have access to the central office

PBX. This eliminates long distance telephone charges

between the branch and central office.

ISDN Backup

link between

Branch and

Central Office

DSU DIM, FXS/FXO

and ISDN

Daughtercards

To provide an alternative path in case of network failure,

you can configure and connect serial ports to an external

analog modem or switch 56K DSU. As Figure 1-5

illustrates, you can also configure ISDN for WAN

backup.

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Vanguard 342 Manuel d'installation Page 33