Introduction; What Is The 8820 Broadband Access Concentrator - Paradyne 8820 Installation Manual

Introduction

What is the 8820 Broadband Access Concentrator?

The 8820 Broadband Access Concentrator (BAC), which can be installed at the
Network Service Provider (NSP) location, provides high-speed Internet or intranet
access. The BAC is a 20-slot chassis with integral power distribution and
conditioning, as well as alarm, cooling, and interface subsystems designed to
house up to 18 Digital Subscriber Line (DSL) port cards. An Asynchronous
Transfer Mode (ATM) backplane provides ATM aggregation across multiple DSL
port cards.
With Release 3.0 of the BAC, there are two configurations:
8820-A2-GN20-80
SCP-card-based. A Shelf Concentration and Processing (SCP) card is
installed in Slot A or B to provide the management functions of the MCP and
the aggregation functions of the SCM. A second SCP card may be installed for
redundancy. The chassis supports up to 864 ports.
The SCP card supports Models 8955, 8965, 8968, and 8985 ATM line cards,
the Model 8995 T1 IMA card, and the Model 8997 E1 IMA card. With an MCP
installed, legacy TDM cards (Models 8775, 8777, 8779, and 8799) are also
supported.
SCM-based. A Management Control Processor (MCP) card is installed in
Slot 9 for management of the line cards. The Shelf Concentration Module
(SCM), installed in Slot A, provides aggregation of DSL traffic for the chassis.
The chassis supports up to 408 ports.
November 2004
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