3Com 3C888 User Guide - Page 43

4 INSTALLING THE DUAL 56K LAN MODEM This chapter explains how to connect your computer to the Dual 56K LAN Modem and install the cables in preparation for configuring the unit. When you first set up the LAN Modem, you initially connect only one computer to the unit. After you have finished configuring the LAN Modem from that computer using a standard web browser, you can then begin to network additional computers, hubs, and/or printers to the LAN Modem. Before You Start the Installation Before you install the Dual 56K LAN Modem, have the following items ready. s Two analog (RJ-11 to RJ-11) telephone cables (provided). s One 10BASE-T Ethernet cable (RJ-45 to RJ-45). It is recommended that you use the cable provided. If, however, you choose to use another cable, it must be a straight-through, 10BASE-T Ethernet cable. A crossover cable cannot be used to connect the LAN Modem to your computer. s Power adapter (you must use the power adapter provided in the package). Installation Steps To install the Dual 56K LAN Modem: 1 Turn off your computer. 2 Connect your computer to any LAN port (if you are unsure, use Port 1), using the Ethernet cable provided, as shown in Figure 25. 2 LINE 1 PHONE 1 LINE 2 PHONE 2 1 4 3 LAN Ethernet cable RJ-45 RJ-45 Figure 25 Ethernet Cable Connection 3 Connect the two analog cables to the ports labeled LINE 1 and LINE 2 on the Dual 56K LAN Modem's back panel, and insert the opposite ends into two available analog wall jacks, as shown in Figure 26. If you are only using one line, use the LINE 1port.