Dell Precision NT499, Руководство пользователя

Страница: 116 / 290

116
Troubleshooting
C HECK THE TELEPHONE LINE CONNECTION
C HECK THE TELEPHONE JACK
C ONNECT THE MODEM DIRECTLY TO THE TELEPHONE WALL JACK
U SE A DIFFERENT TELEPHONE LINE —
• Verify that the telephone line is connected to the jack on the modem (the jack has
either a green label or a connector-shaped icon next to it).
• Ensure that you hear a click when you insert the telephone line connector into the
modem.
• Disconnect the telephone line from the modem and connect it to a telephone, then
listen for a dial tone.
• If you have other telephone devices sharing the line, such as an answering machine,
fax machine, surge protector, or line splitter, bypass them and use the telephone to
connect the modem directly to the telephone wall jack. If you are using a line that is
3 meters (10 feet) or more in length, try a shorter one.
R
UN THE
M
ODEM DIAGNOSTIC
T
OOL
—
Windows XP
:
1
Click Start
→
All Programs
→
Modem Helper .
2
Follow the instructions on the screen to identify and resolve modem problems.
Modem Helper is not available on certain computers.
Windows Vista :
1
Click
Start
→
All Programs
→
Modem Diagnostic Tool .
2
Follow the instructions on the screen to identify and resolve modem problems.
Modem diagnostics are not available on all computers.
V ERIFY THAT THE MODEM IS COMMUNICATING WITH W INDOWS —
Windows XP :
1
Click Start
→
Control Panel
→
Printers and Other Hardware
→
Phone and Modem
Options
→
Modems .
2
Click the COM port for your modem
→
Properties
→
Diagnostics
→
Query Modem to
verify that the modem is communicating with Windows.
If all commands receive responses, the modem is operating properly.
Windows Vista :
1
Click
Start
→
Control Panel
→
Hardware and Sound
→
Phone and Modem
Options
→
Modems .
2
Click the COM port for your modem
→
Properties
→
Diagnostics
→
Query Modem
to verify that the modem is communicating with Windows.
If all commands receive responses, the modem is operating properly.