Troubleshooting And Help Resources; External Serial Modems; Basic Troubleshooting Steps - 3Com 3CP5610A User Manual

4
External Serial
Modems
Basic Troubleshooting
Steps
T
ROUBLESHOOTING AND
R
ESOURCES
This chapter covers:

External Serial Modems

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External USB Modems
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Macintosh Modems
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Internal Winmodem
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Internal ISA Modems
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Internal PCI Modems
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Help Resources
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Are You Still Having Problems?
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If You Need to Return the Modem to U.S. Robotics for Repair
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1. Is your modem turned on? When your modem is properly connected
to power and is turned on, the CS light on the front panel will be on.
2. Is your power supply connected properly to both your modem and an
electrical 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. Check the
packaging of the cable you bought. There are many computer cables that
look similar to an RS-232, such as a Null Modem cable, that will not work
®
modems
H
ELP