Basic Configuration; Port Expansion Module Configuration; Primary Access Unit; Applications - 3Com 3C421600A Management Manual

18 C 1: O
HAPTER VERVIEW
Overview

Basic Configuration

Port Expansion
Module
Configuration

Primary Access Unit

Applications

Dial-In

The SuperStack ® II Remote Access System (RAS) 1500 is a powerful data
communications platform that supports a broad variety of applications.
The basic configuration of a RAS 1500 consists of one Router Unit with
the following options:
Two Basic Rate Interface (BRI) line connections, expandable to four
Four analog lines, expandable to eight
The RAS 1500 allows you to add two Port Expansion Units to your stack.
The addition of the expansion units allows your RAS 1500 stack to
support up to 12 Integrated Services Digital Network (ISDN) BRI lines or
24 analog lines.
The RAS 1500 maybe be configured with a Router Unit and a Primary
Access Unit as follows:
T1 (North America) Primary Access Unit with 23 Primary Rate Interface
(PRI)-ISDN channels
E1 (European) Primary Access Unit with 30 PRI-ISDN channels
The RAS 1500 is a multiprotocol, dial-up router and terminal server
commonly described as a remote access server. The RAS 1500 performs
the following four basic applications:
Dial-In
Shared ISP
LAN-to-LAN
Individual Dial-Out
The RAS 1500 provides dial-in network access for remote users. Remote
Internet Protocol (IP), Internetwork packet eXchange (IPX), and AppleTalk
network users can dial in and attach to the local network as if they were
on local nodes.
Packets transmitted over the dial-in connection are encapsulated using
the following protocols:
Point-to-Point Protocol (PPP)