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The router has an SDSL front end and is a manageable frame relay aware endpoint. It
operates as a bridge or an IP router that connects a DSL link to an Ethernet network.
The FrameSaver DSL 9783 Router is used for data only and provides corporate LAN
access over traditional twisted-pair copper telephone wiring. Copper pairs run from the
central office (CO) to the customer premises (CP) to create the local loop. The local loop
terminates on the customer premises at the demarcation point in a punchdown block or
network interface device (NID). A typical example of using the FrameSaver DSL 9783
Router in a network configuration is shown below.
The FrameSaver DSL 9783 Router is available in two feature sets:
Basic Feature Set 1 provides basic frame relay and diagnostic capability.
Advanced SLV (Service Level Verification) Feature Set 2 provides basic features,
plus SLV management and reporting capability.
DSL
Access
Network
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TDM
Access
Network
LAN
FR Network
FR/ATM
IWF
ATM
Switches
FR
Switches
Frame Relay NSP's Network
ATM
NNI(s)
Aggregation
Switch
(Optional)
Copper
Loop
DSL
FrameSaver
DSL 9783
Bridge/Router
Endpoint
Customer
Premises–
Remote Site
Router
FrameSaver
Endpoint
Customer Premises–
HQ Site
Central Office
ATM
Services
LAN
ATM – Asynchronous Transfer Mode
DSL – Digital Subscriber Line
FR – Frame Relay
HQ – Headquarters
IWF – Interworking Function
LAN – Local Area Network
NSP – Network Service Provider
TDM – Time Division Multiplexer