About the Vanguard 340 and 340 Enhanced
1-17
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 34x 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.
Security
Monitoring at
Branch Office
RemoteVU and DSU
Daughtercards
The Vanguard 34x equipped with a RemoteVU
Daughtercard provides security surveillance and remote
monitoring of the branch office location from the central
office. The RemoteVU Daughtercard packetizes video
stream in IP and sends the data over the network. Security
personnel at the central office can control the branch
office video camera from a PC running the Host Video
Workstation application.
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