10/100 Ethernet PCMCIA Adapter
Installation Guide
Step One: Insert the PCMCIA Adapter into your computer
Turn on your computer. Type your password if you are prompted to do so. Windows NT, 
2000, and XP users must be in administrator mode to properly add any new hardware.
Locate an available PCMCIA slot and fully insert the 10/100 Ethernet PCMCIA Adapter. 
PCMCIA slots are typically on the side of laptops. You should hear a beep when the 
10/100 Ethernet PCMCIA Adapter is fully inserted.
Note: Be sure to find out what letter your CD-ROM drive uses before you begin installing your
new product. You will need to know this to properly install your software.
Step Two: Install your drivers
When Windows detects the new hardware, click Next. Insert the Installation CD-ROM into 
your CD-ROM drive. When Windows prompts you for the location of the driver, select
Search for the best driver for your device (Recommended) and click Next. Select Specify 
a location and type one of the following command lines, depending on your version of
Windows (your CD-ROM drive may use a different letter instead of "D"):
Windows 98 users: D:\Win98 
Windows 2000 users*: D:\Win2000 
Windows Me users*: D:\WinMe 
Windows XP users: D:\WinXP
Continue to follow the on-screen instructions. After you click Finish, you will need to 
reboot your laptop computer in order for the installation procedure to be completed.
Congratulations! You have finished installing your 10/100 Ethernet PCMCIA Adapter.
Note: Windows 95, Windows NT, Unix, and DOS users: the Installation CD-ROM includes the
drivers for your operating system. On the Installation CD-ROM you can locate the folder containing the driver that applies to your operating system.
* A 
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window may appear. Click Yes . Windows Me and 2000 will verify that your network
device is properly installed.
Troubleshooting
Check the following troubleshooting items before contacting the U.S. Robotics Technical 
Support department.
My computer is not recognizing my 10/100 PCMCIA Card. 
If your computer cannot find the U.S. Robotics 10/100 Ethernet PCMCIA Adapter or the 
network driver does not install correctly, check the following:
Possible Solution:
Make sure the adapter is securely seated in the PCMCIA slot. Check for any hardware 
problems, such as physical damage to the card’s edge connector. Try the card in another 
PCMCIA slot. If this fails, test another U.S. Robotics 10/100 Ethernet PCMCIA Adapter that 
is known to operate correctly.
Possible Solution:
If there are other network adapters in the computer, they may be causing conflict. Remove or 
disable all other adapters in the computer and test the U.S. Robotics 10/100 Ethernet PCMCIA 
Adapter separately.
Possible Solution:
Check for a defective computer by trying the adapter in another laptop computer that is 
known to operate correctly.
I am unable to access the network or the Internet.
There may be a network or Internet connection problem if the LED on the 10/100 Ethernet 
PCMCIA Adapter does not illuminate or if you cannot access any network or Internet 
resources from the computer. Check the following items:
Possible Solution:
Make sure you are using Category 5 cable for 100 Mbps connections and that the length of any 
cable does not exceed 100 m (328 ft). Inspect all network cables and connections. Make sure 
the network cable is securely attached to the 10/100 Ethernet PCMCIA Adapter’s connector.
Possible Solution:
Make sure the correct network driver is installed for your operating system. If 
necessary, try reinstalling the driver.
Possible Solution:
If the 10/100 Ethernet PCMCIA Adapter’s speed or duplex mode has been configured manually, make sure it matches that of the attached network device port. Some devices will 
require that the speed be manually set.
Possible Solution:
The port on the network device that the 10/100 Ethernet PCMCIA Adapter is attached to 
may be defective. Try using another port on the device.
Possible Solution:
If you cannot access a Windows or NetWare service on the network, check that you have 
enabled and configured the service correctly. If you cannot connect to a particular server, 
be sure that you have access rights and a valid ID and password.
Possible Solution:
If you cannot access the Internet, check your network settings and verify that TCP/IP 
is installed and properly configured.
If you are still experiencing problems after trying the suggestions in the Troubleshooting 
section, you can receive additional help via one of the convenient U.S. Robotics support 
resources.
Support Resources
Are you still having problems?
1. Go to the Support section of the U.S Robotics Web site at www.usr.com.
Many of the most common difficulties users experience have been addressed in the FAQ and Troubleshooting 
Web pages for your specific product. Your model number is 7901. You may need to know this to obtain information on the U.S. Robotics Web site.
2. Call the U.S. Robotics Technical Support Department.
Technical questions about U.S. Robotics products can also be answered by technical support specialists.
Country  Voice  Online  Support Hours 
USA  (801) 401-1143  http://www.usr.com/support/s-online_emailtechie.asp  9:00A.M. – 5:00P.M. CST, M- F 
Canada  (801) 401-1146  http://www.usr.com/support/s-online_emailtechie.asp 9:00A.M. – 5:00P.M. CST, M-F 
Argentina  AT&T Direct + (877) 643-2523  lat_modemsupport@usr.com  9:00A.M. – 5:00P.M. CST, M-F 
Brazil  AT&T Direct + (877) 487-6523  brazil_modemsupport@usr.com  9:00A.M. – 5:00P.M. CST, M-F 
México  AT&T Direct + (877) 643-2523  lat_modemsupport@usr.com  9:00A.M. – 5:00P.M. CST, M-F 
Chile  AT&T Direct + (877) 643-2523  lat_modemsupport@usr.com  9:00A.M. – 5:00P.M. CST, M-F
Colômbia  AT&T Direct + (877) 643-2523  lat_modemsuppor t@usr.com  9:00A.M. – 5:00P.M. CST, M-F 
Costa Rica  AT&T Direct + (877) 643-2523  lat_modemsupport@usr.com  9:00A.M. – 5:00P.M. CST, M-F 
Peru  AT&T Direct + (877) 643-2523  lat_modemsupport@usr.com  9:00A.M. – 5:00P.M. CST, M-F 
Puerto Rico  AT&T Direct + (877) 643-2523  lat_modemsupport@usr.com  9:00A.M. – 5:00P.M. CST, M-F 
Venezuela  AT&T Direct + (877) 643-2523  lat_modemsupport@usr.com  9:00A.M. – 5:00P.M. CST, M-F
Country  Voice  Online  Support Hours 
China 10800 650 5108 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Hong Kong 800 90 3191 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
India Delhi - 11 6284198/ 99/ 18/ 19 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
India Hyperbad - 40 6261600/ 01/ 02/ 03 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
India Calcutta - 33 216 1800/ 01 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
India Chennai - 44 851 5273/ 74 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
India Bombay - 22 8252188/ 93/ 94/ 95 usrapsuppor t@usr.com 9:00A.M. – 5:00P.M.  M-F
India Bangalore - 80 2380303/ 04 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Indonesia 001 803 65 7402 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Japan (03) 5495 9408 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Korea usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Malaysia 1800 80 1554 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Philippines 1800 1 651 0215 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Singapore 65 784 9910 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
South Korea 00798 651 7135 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Taiwan 0080 65 1349 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Thailand 001 800 65 6252 usrapsupport@usr.com 9:00A.M. – 5:00P.M. M-F
Country  Voice  Online  Support Hours 
Australia 1800 125030 usrapsupport@usr.com 9:00A.M. – 5:00P.M., M-F
New Zealand 0800 449535 usrapsupport@usr.com 9:00A.M. – 5:00P.M., M-F
Austria  07 110 900 116  germany_modemsupport@usr.com 8:00A.M. – 6:00P.M., M-F
Belgium (Flemish)  +32 (0) 70 233 545 emea_modemsupport@usr.com 9:00A.M. – 6:00P.M., M-F
Belgium (French)  +32 (0) 70 233 546 emea_modemsupport@usr.com 9:00A.M. – 6:00P.M., M-F
Denmark  +45 7010 4030  emea_modemsupport@usr.com 9:00A.M. – 5:00P.M., M-F
Finland  +358 98 171 0015  emea_modemsupport@usr.com 10:00A.M. – 6:00P.M., M-F
France  080 307 0693  france_modemsupport@usr.com 9:00A.M. – 6:00P.M., M-F
Germany/Hungary  01805671548  germany_modemsupport@usr.com 8:00A.M. – 6:00P.M., M-F
Ireland +44 870 844 4546 emea_modemsupport@usr.com 9:00A.M. – 6:00P.M., M-F
Israel  emea_modemsupport@usr.com 9:00A.M. – 5:30pm, M-F
Italy  848 80 9903  italy_modemsupport@usr.com 9:00A.M. – 6:00P.M., M-F
Luxembourg +352 342 080 8318  emea_modemsupport@usr.com 9:00A.M. – 6:00P.M., M-F
Middle East/Africa  +44 870 844 4546 emea_modemsupport@usr.com 9:00A.M. – 6:00P.M., M-F
Netherlands 0900 20 25 857  emea_modemsupport@usr.com 9:00A.M. – 6:00P.M., M-F
Norway  +47 (0) 23 50 0097  emea_modemsupport@usr.com 9:00A.M. – 5:00P.M., M-F
Poland  emea_modemsupport@usr.com 8:00A.M. – 6:00P.M., M-F
Portugal  +35 11 415 4034  emea_modemsupport@usr.com 9:00A.M. – 5:00P.M., M-F
Spain  902 117 964  spain_modemsupport@usr.com 9:00A.M. – 5:00P.M., M-F
Sweden  +46 (0) 851 992 035  emea_modemsupport@usr.com 8:00A.M. – 5:00P.M., M-F
Switzerland  +0848 840 200  emea_modemsupport@usr.com 8:00A.M. – 6:00P.M., M-F
UK  0870 8444 546  uk_modemsupport@usr.com 9:00A.M. – 5:30P.M., M-F
Installation