Toshiba TECRA A8 User Manual page 84

Connecting
To connect the modular cable, follow the steps below.
The modular cable that comes with the computer must be used to connect
the modem. Connect the end of the modular cable with the core to the
computer.
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Connection to any communication line other than an analog phone line
could cause a PC system failure.
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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.
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 hard disk drive
connected to a 16-bit PC card, you might experience the following modem
problems:
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Modem speed is slow or communication is interrupted.
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Skips may occur in sound.
User's Manual
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.
Modem jack
Connecting the internal modem
Modular cable
Operating Basics
Telephone jack
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