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I
NTRODUCTION
This chapter provides an overview of the OfficeConnect
®
ISDN LAN Modem,
referred to throughout this document as the ISDN LAN Modem.
Introduction
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.
Applications
The primary application for the ISDN LAN Modem is:
■ Local networking with shared access to the Internet and/or a remote office
LAN.
Local Networking with
Access to the Internet
Users can share access to the Internet while continuing to network locally.
Figure 1
Local Networking with Access to the Internet
OfficeConnect
®
ISDN LAN Modem
Public telephone
network
Internet/Intranet
or
online service
ISDN BRI line
OfficeConnect™
ISDN LAN Modem
OfficeConnect
®
Hub 8 TPO
Alert
PWR COLLPKT COAX1234
green = link OK, off = link fail, yellow = partition
Port Status
5678
1%2%3%6%12% 25% 50%80%
Network Utilization
Office
Connect
¤
Hub
3 Com
PWR
ISDN
B1
B2
3 Com
Alert
Tx
Coll
1
2 3 4
LAN STATUS