I
would be tempted to try USB over a longer distance.
I
believe the main limitation is in the pair of wires feeding the power. USB
has
4 wires +5v, 0v, A & B. A and B are the data pair, as long as you used
a
local power supply at the distant end it might work OK. As I understand it,
the actual DATA is carried as a balanced RS485 type signal so should be
good
for quite a long distance over CAT5.
Of
course, I could be talking B******* as I have never played with
USB.
I
cant test this theory as I dont own any USB kit.
Keith
Excuse the blonde question :-)
but why is their such a limitation on the length
of
cable for USB? - do they use very low voltages for their signalling, and as
such this would deteriorate over any distance - say 15
metres?
<Whinge mode>
It
just seems such a waste, that I can buy a reasonable colour web cam for
under £50 and I could then have more than one connected to my pc, that they
would all have to be within a few metres of node Zero!!
</Whinge mode>
Daniel (throwing his toys out of
the box!!)
> Erm, I didn't think
that was what USB / Ethernet adaptors did!
Most don't , but I'm
sure there's some that do ... somewhere ...
> They're there to
give a PC a network connection using a USB port rather
> than a PCI
or an ISA one.
>
> In order to extend the camera, Dan would
need the CAMERA to be able to
> load the device drivers for the USB
network card, if you see what I
> mean.
yeah,
gotcha.
> Am I wrong here? Are there, in fact, USB extenders
that work over
> Ethernet???
I'm sure I've seen them around,
but I've no idea where. Perhaps someone
else
has?
Andy
--
PC-Based Multimedia System - now working!
http://www.andylaurence.pwp.blueyonder.co.uk/pcbmms
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