3Com PathBuilder S21x Installation Manual page 19

Branch Office to
Central Office over
Frame Relay
Branch Office
Ethernet
Application
Type
Branch access to
Central Office
Security
Monitoring at
Branch Office
About the PathBuilder S21x Switch
The PathBuilder S21x switch offers an ideal solution for branch office to central
office connectivity over a private or public frame relay network as shown in
Figure 1-4.
Security Monitoring
at Branch Office
Equipped with
RemoteVu Daughtercard
PB S200
Video Camera
Equipped with DSU DIM,
Voice Relay, and ISDN
Daughtercards
PB S200
PBX
Figure 1-4. PathBuilder S21x switch supporting Voice and Video over
Frame Relay
Daughtercard
Used
DSU DIM and Voice
Relay Daughtercards
RemoteVu and DSU
Daughtercards
Target Application Environments
Frame Relay
ISDN
Application Description
The PathBuilder S21x switch supports voice, video and
data traffic between the branch and central office over pri-
vate or public frame relay network. The Voice Relay
Daughtercard supports telephones, PBX, and faxes.
Connect a telephone or PABX to one FXS port on the
Voice Relay Daughtercard and all branch telephones have
access to the central office PBX. This eliminates long
distance telephone charges between the branch and
central office.
The PathBuilder S21x switch 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 frame relay.
Security personnel at the central office can control the
branch office video camera from a PC running the Host
Video Workstation application.
Central Office
PCs Running Host Video
Workstation Application
Ethernet
PBX
1-7