Introduction; Applications; Local Networking With Access To The Internet - 3Com 3C892 - OfficeConnect ISDN Lan Modem Router User Manual

1

Introduction

Applications

Local Networking with
Access to the Internet
I
NTRODUCTION
This chapter provides an overview of the OfficeConnect
referred to throughout this document as the ISDN LAN Modem.
The ISDN LAN Modem is an easy to install, LAN to WAN modem. For the LAN, it
provides four 10BASE-T Ethernet connections— expandable to 25 connections.
Refer to Figure 1 for an example showing 10 connections by adding an 8-port
10BASE-T Ethernet hub. For WAN access, it provides a Basic Rate Interface (BRI)
ISDN port.
With the ISDN LAN Modem, small office and home office users can share remote
access to the Internet or to a remote office while continuing to network locally.
The primary application for the ISDN LAN Modem is:
Local networking with shared access to the Internet and/or a remote office
LAN.
Users can share access to the Internet while continuing to network locally.
Figure 1 Local Networking with Access to the Internet
®
OfficeConnect
Hub 8 TPO
Port Status Network Utilization
Office 3 Com
¤
Connect
PWR PKT COLL 1 2 3 4 5 6 7 8 COAX 1% 2% 3% 6% 12% 25% 50% 80%
Alert Hub
green = link OK, off = link fail, yellow = partition
OfficeConnect
ISDN LAN Modem
LAN STATUS
Alert PWR ISDN B1 B2 Tx Coll
® ISDN LAN Modem,
Internet/Intranet
or
online service
®
Public telephone
network
3 Com
OfficeConnect™
1 2 3 4
ISDN LAN Modem
ISDN BRI line