USB Extender

[filibertov]

I'd like to set up an inexpensive room monitor using a webcam. I'm thinking of a USB extender for the webcam but cannot find a schematic on the extender cable. Any ideas? Any help would be great>

 

[Someone Electro]

You dont need a schematic evrything is conected directly.Same wires to same wires.Also note that USB is not meant to run on long cabels you may start getting problems whith long cabels.

 

[Styx]

have a look for something call the NSLU2 from linksys.
It is ment to be a fileserver (costing £50 + external HD or flashdrive) but since it is linux-based ppl have been hooking wierd things to it (I am using mine as a torrent server, a music server [ plays onto my stereo with BLuetooth control] and a fileserver + FTP/SSH server)

ppl have hooked webcams upto them, this then allows webcams to be views over a network

 

[DirtyLude]

You dont need a schematic evrything is conected directly.

I'm pretty sure he's asking for a repeater, rather than just a longer cable.

 

[justDIY]

also sometimes called an active extender or powered extension cable... they allow up to 30m

Just guessing here, but I think the usb signaling pair is bidirectional of sorts, so something easy like a buffer IC wont work since it's only passing one direction.

maybe something like a 74HC4061 analog switch would work (don't use the switch part, just tie the switch select low so it's locked into one set of outputs) ... setup your D+ and D- on one side of the switch, and the extension of your D+ and D- on the other side ... the bidirectional nature of the analog switch will allow a signal to travel either way, but at the same time, it is buffering(?) the signal as well... maybe?