3Com 3C888 User Guide - Page 14

14 CHAPTER 1: INTRODUCTION Applications The primary applications for the Dual 56K LAN Modem are: s Local networking with shared, dial-out access to the Internet s 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) s Local networking with shared, simultaneous dial-out access to the Internet and a private network s 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: Local Networking with Users can share access to the Internet while they continue to network locally, as Shared Internet Access shown in Figure 1. OfficeConnect Dual 56K LAN Modem Message MODEM 1 MODEM 2 AA CD RD SD OH AA CD RD SD OH Alert Power LAN Status TX COLL 1 2 3 4 OfficeConnect Dual 56k LAN Modem Public telephone network Two analog POTs lines Internet Figure 1 Local Networking with Shared Internet Access Local Networking with Users can share access to a remote private network, such as a corporate office Shared Private Network LAN, while they continue to network locally. This can include indirect access to the Access Internet through the private network's Internet connection, as shown in Figure 2. OfficeConnect Dual 56K LAN Modem Message MODEM 1 MODEM 2 AA CD RD SD OH AA CD RD SD OH Alert Power LAN Status TX COLL 1 2 3 4 OfficeConnect Dual 56k LAN Modem Public telephone network Two analog POTS lines Internet More connected 3 Com ANALOG 4 3 1 2 SLOT 1 D BRI ISDN U 3/4 D 34 1 2 1/2 SLOT 2 SUPER RWemAoNte AccessTSXysteCmRLOXA15N00 LK PSotawtueRsresRTSeXtXTACK 3Com CONSOLE STACKNET Private network Dedicated or leased line connection Figure 2 Local Networking with Remote Private Network Access