Applications - 3Com Dual 56K User Manual

14 C 1: I
HAPTER NTRODUCTION

Applications

Local Networking with
Shared Internet Access
Local Networking with
Shared Private Network
Access
The primary applications for the Dual 56K LAN Modem are:
Local networking with shared, dial-out access to the Internet
Local networking with shared, dial-out access to a private network, such as a
remote corporate office LAN (this can include indirect Internet access through
the private network's Internet connection)
Local networking with shared, simultaneous dial-out access to the Internet and
a private network
Combined dial-in and dial-out access for several possible networking scenarios
(refer to Chapter 8 for specific dial-in applications).
The following diagrams illustrate the primary Dual 56K LAN Modem applications:
Users can share access to the Internet while they continue to network locally, as
shown in Figure 1.
OfficeConnect
Dual 56K LAN Modem
Figure 1 Local Networking with Shared Internet Access
Users can share access to a remote private network, such as a corporate office
LAN, while they continue to network locally. This can include indirect access to the
Internet through the private network's Internet connection, as shown in Figure 2.
OfficeConnect
Dual 56K LAN Modem
MODEM 1 MODEM 2
Figure 2 Local Networking with Remote Private Network Access
Public telephone
MODEM 1 MODEM 2 LAN Status
OfficeConnect Dual 56k LAN Modem
Two analog POTs lines
Public telephone
LAN Status network
OfficeConnect Dual 56k LAN Modem
Two analog POTS lines
Internet
network
Dedicated or
leased line
CONSOLE 3Com
System Access RX LAN 1500 STACKNET
Power TX RX SUPER STACK WAN TX Remote LK CO
D 1/2 1 2 BRI 3 4 D ISDN U 2 3/4 Status Reset
ANALOG 4 3 SLOT
1 2 SLOT 1
connection
Private network
Internet