Toshiba U100 PLU10C-00H00E Users Manual Canada; English - Page 110

Operating Basics ■ Connection to any communication line other than an analog phone line could cause a PC system failure. ■ Connect the built-in modem only to ordinary analog phone lines. ■ Never connect the built-in modem to a digital line (ISDN). ■ Never connect the built-in modem to the digital connector on a public telephone or to a digital private branch exchange (PBX). ■ Never connect the built-in modem to a key telephone system for residences or offices. ■ Never operate your PC on AC power during a thunderstorm. If you see lightning or hear thunder, immediately turn off the PC. An electric surge caused by the storm, may result in a system failure, loss of data or hardware damage. 1. Plug one end of the modular cable into the computer's modem jack. 2. Plug the other end of the modular cable into a telephone jack. Modular cable Modem jack Telephone jack Figure 4-14 Connecting the internal modem Do not pull on the cable or move the computer while the cable is connected. If you use a storage device such as an optical drive or HDD connected to a 16-bit PC card, you might experience the following modem problems: ■ Modem speed is slow or communication is interrupted. ■ Skips may occur in sound. Disconnecting To disconnect the internal modular cable, follow the steps below. 1. Pinch the lever on the connector in the telephone jack and pull out the connector. 2. Disconnect the cable from the computer's modem jack in the same manner. 4-32 User's Manual