На сколько метров от компа можно установить WebCam (USB 1)?

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Prohodil Mimo © (2005-02-02 15:22) [0]

17 можно?

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Romkin © (2005-02-02 15:30) [1]

5 метров, но...

3. What about using USB signal repeaters to make a cable longer than 5 meters?

A: Don"t bother. The best solution is self-powered hub with a fixed 10m cable that had a one-port bus powered hub in the middle. The maximum range will still have to deal with the timeout, so any out of spec tweaking of the terminations between the two hubs and the timing budget still won"t yield more than 5cm of extra distance. A better solution is described in the following question.

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4. I really need to put a USB device more than 30 meters away from my PC. What should I do?

A: Build a USB bridge that acts as a USB device on one side and has a USB host controller at the other end. Use a long-haul signaling protocol like Ethernet or RS-485 in the middle. Using cables or short-haul fiber, you can get ranges upwards of a kilometer, though there"s no reason why the long-haul link in the middle of the bridge couldn"t be a pair of radio transceivers or satellite modems.
Embedded host solutions capable of doing this already exist. Also, two PCs connected via USB Ethernet adapters are essentially a slave/slave version of this master/slave bridge.

http://www.usb.org/developers/usbfaq/#cab4

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