Hardware Connections to the Internet

You can connect to the Internet by using an existing phone line or installing a dedicated (leased) line. Hardware connections and specifications are given below.

• Modem. Use a modem over an existing phone line. Consider a modem that transmits at 14.4/28.8 Kb per second.
• ISDN. Use an ISDN line (typically installed by your phone company). Connect the ISDN line to an NT1 (network termination) box, and then connect the box to the port marked with the telephone on the back of a Silicon Graphics Indy(TM) system. On a system other than an Indy, connect the ISDN line to an NT1 box, the box to an ISDN terminal adapter, and the adapter to the system. For more information about ISDN connections, see the ISDN User's Guide.
• Leased line. Use a switched 56 (56 Kb per second) line if ISDN is not available. Or, use a fractional T1 (56 Kb to 1.5 Mb per second), or a full T1 (1.5 Mb per second) line. In Europe, use an E1 line (2.048 Mb per second). You can use a router for the leased line; however, be sure that the router can handle the line rate.