Troubleshooting - U.S. Robotics Courier 56K Schnellinstallationsanleitung

Troubleshooting

Having trouble with your modem? Try these basic troubleshoot-
ing steps first!
1. Is your modem turned on? When your modem is properly connected to an
electrical outlet, a wall outlet, or a surge protector and is turned on, the
CTS and MR lights on the front panel will be illuminated.
2. Is your power supply connected properly to both your modem and an elec-
trical outlet? If it is, check the outlet with another electric device (like a
lamp) to be sure that you are getting power. Also, use the power supply
that came with your modem; other similar-looking power supplies may be
of different voltages and could damage your modem.
3. Are you using the proper cable to connect your modem to your computer?
Make sure you are using an RS-232 modem cable, preferably the one that
came with your modem. There are many computer cables that look similar
to an RS-232 that will not work correctly with this modem. For example, a
Null Modem cable will not work with your modem. Depending on whether
you have a 9-pin or 25-pin serial port on your computer, you will need
either a DB9/DB25 or a DB25/DB25 serial cable.
4. For standard usage, make sure the DIP switches on the bottom of your
modem are set correctly. DIP switches 3, 5, 8, and 9 should be in the on
(down) position. For more information, refer to the "Configuring with DIP
Switches" section of the User Guide on the Installation CD-ROM for the
proper settings.
5. Is your phone cord properly connected? The phone cord should be plugged
into the jack on the modem and into the telephone wall jack. Use the
phone cord included in your modem's box, if possible.
If you have any difficulty with your modem, first make sure that
it was installed correctly.
Windows XP
• Click Windows Start and then click Control Panel.
Click Phone and Modem Options and then click the Modems tab.
•
You should see a description of your new U.S. Robotics modem and a
COM port setting. If you do not see a description of your modem,
see the Note at the end of this section.
• Click Modem, highlight the description of your new modem, and
click Properties.
Click the Diagnostics tab.
•
• Click Query Modem. You should see a series of commands and
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