Toshiba Portege M750 User Manual page 157

Connecting the modular cable
To connect the modem's modular cable, follow the steps as detailed below:
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Connection to any communication line other than an analog phone line
could cause a computer system failure.
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Never operate your computer on AC power during a thunderstorm. If
you see lightning or hear thunder, immediately turn off the computer.
An electric surge caused by the storm, may result in a system failure,
loss of data or hardware damage.
1. Plug the 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
problems with the operation of the modem:
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The modem speed is slow or communication is periodically interrupted.
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Skips or jumps may be noted in sound.
Disconnecting the modular cable
To disconnect the modular cable, follow the steps as detailed below:
1. Pinch the lever on the plug in the telephone jack and pull it out from
within the connector.
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.
Figure 4-29 Connecting the internal modem
Telephone jack
Modem jack
Operating Basics
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