Device Not Recognized with USB cable 15 m long

[Bernard Goh]

Hi All,

I got this Device Not Recognized error when I connect a USB Flash Drive
15meters away in a another room. I have tested my equipment with the
following scenerio for possible cause:

1. Connect the flash drive with a shorter cable. -- It works.
2. Connect the flash drive with the 15M long cable to another PC (Windows XP
Pro no secvice packs) -- It works. (with the 15meters usb cable)
3. Check the USB Controller Status -- All 4 of them report working correctly
4. Reinstall the software for USB controller (Intel (R) 82801GB USB
Universal Host Controller 27C8) -- Same Error.
5. Try all 4 usb ports I have -- None is working with the 15m usb cable.

Following is my PCs configuration
HP Compaq dx7200 Minitower PC
Windows XP Professional Sevice Packs 2 (with all lastest updates installed)
Norton Antivirus 2005

What has gone wrong ? any help is very much appreciated.

Many Thanks In Advance,
Bernard Goh
IT Administrator
Success Electronics & Transformer Manufacturer Sdn Bhd
No.5 & 7,Jalan TSB 8
Taman Industri Sg. Buloh
47000 Sg.Buloh
Selangor Darul Ehsan

 

[Uwe Sieber]

The offical maximum USB cable length is 5 meters. All above
is pure chance.
There are active USB extension cables for larger distances
like this:
http://www.vpi.us/usb-extender.html


Greetings from Germany

Uwe