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61200264L1 Quad E1/PRA Module User Manual

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Chapter 1

Introduction

OVERVIEW

The Quad E1/PRA Module is a member of the ATLAS family of Integrated

Access products and provides four channelized E1 or Primary Rate Access

(PRA) interfaces. Using the available converter assembly (P/N 1200209L1),

each interface impedance can be independently selected, and any port can serve

as the primary or backup timing source for the entire system.

The Quad E1/PRA Module combines with the ATLAS base unit and other

ATLAS modules to support requirements calling for multiple E1 and/or PRA

circuits. As many Quad E1/PRA Modules can be installed in a system as can be

physically accommodated in the ATLAS chassis.

Typical applications calling for ATLAS and the Quad E1/PRA Module include

the following:

• Digital Access Cross Connect System (DACS). Any TS0 on any E1 circuit can

be switched to any other TS0 on any other E1 circuit.

• E1Bandwidth Management. E1 circuits carrying voice, data, video, and oth-

er traffic can have their payload groomed and directed to the appropriate in-

terface inside the ATLAS system.

• Digital Circuit Provisioning. When combined with the Octal BRI/U Module

(P/N 1200186L1), the Quad E1/PRA Module can combine data from multi-

ple dedicated-bandwidth U-interfaces into a single E1.

Figure 1-1 shows the E1 bandwidth management application.

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ADTRAN E1 Bedienungsanleitung Seite 11