ADTRAN ATLAS 800PLUS Uživatelský manuál stáhnout pdf (Strana 20)

Chapter 1. Introduction

1-2

ATLAS

_800

PLUS

User Manual 61200226L1-1

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 loca-

tion results in lower cost. Frame relay providers use a frame relay switch to route

the data on each virtual circuit to the appropriate destination. Figures 1-1 and 1-2

illustrate a conversion from a typical point-to-point application to a frame relay

application.

Figure 1-1. Point-to-Point Circuit

Router

PBX

Frac T1

ATLAS 800

PLUS

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ADTRAN ATLAS 800PLUS Uživatelský manuál Strana 20