[time-nuts] Controlling FEI 5680A

Chris Albertson albertson.chris at gmail.com
Sun Jan 15 17:26:44 EST 2012

On Sun, Jan 15, 2012 at 10:32 AM, Hal Murray <hmurray at megapathdsl.net> wrote:
> You can get USB cable extenders.  They are 15 feet long with a hub built into
> the connector blob at the far end.  There is a limit of 4 or 5.  They
> obviously reduce the power available to the end device.

May have solved this problem for good.   I just found USB extenders
that use Cat-5 or cat-6 cable.  They say you can put in up to 150 feet
of cable.  There are transmit/receivers at each end and they use all
four pairs and also transmit power over theca-5.   mono price.com has
then for $11.  Better ones go for $100.

But still I want Eithernet.   People are talking about FPGAs so it is
very easy to synthesize an ethernet controller.

I've been looking at this, yes more than $3 but there is no PCB to
design, build and assemble.

Chris Albertson
Redondo Beach, California

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