Figure 1-1. Point-To-Point Circuit - ADTRAN ATLAS 800 PLUS User Manual

Chapter 1. Introducing the ATLAS 800PLUS
1-2
The modules include the following:
• Quad Nx 56/64 Module
• Quad T1/PRI Module
• Octal Basic Rate ISDN Module
• T3 Module
• Async-232 Module
• Modem-16 Module
Frame Relay
Frame relay is a packet-switched service that allows efficient transfer of
bursty traffic in a WAN environment. It offers lower-cost data transfer when
compared to typical point-to-point applications. Using virtual connections
within the frame relay network and combining those into a single physical
connection at each location results in lower cost. Frame relay providers use
a frame relay switch to route the data on each virtual circuit to the appropri-
ate destination. Figures 1-1 and 1-2 illustrate a conversion from a typical
point-to-point application to a frame relay application.
ATLAS 800
PBX
Router
PLUS
ATLAS 800
Frac T1
PLUS
Frac T1
Frac T1

Figure 1-1. Point-to-Point Circuit

User Manual
Router
PBX
Router
PBX
Router
PBX
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