[PLUG-TALK] Wireless external security camera

Tomas Kuchta tomas.kuchta.lists at gmail.com
Fri Nov 22 16:20:11 PST 2019


Maximum USB cable length (without max 5 USB hubs to extend) is 5m. It is
dictated by the standard and max delays.

https://en.m.wikipedia.org/wiki/USB#Cabling

Tom

On Fri, Nov 22, 2019, 17:54 Keith Lofstrom <keithl at kl-ic.com> wrote:

> On Fri, Nov 22, 2019 at 02:14:15PM -0800, Drew G. Wallace wrote:
> > From personal experience cabling a low voltage PoE run can be less
> > challenging an obstacle than a 120V recepticle with 12V wall-wart
> somewhere
> > in the near area.
>
> While I prefer two-wire,  if the connection is plain
> vanilla ethernet, there are add-on Power over Ethernet
> dongles that can be added to each end of the ethernet
> cable to move power on the signal wires.  I plan to
> power some 12V wifi access points this way.
>
> I also have a 1080p bore-scope that is powered and
> communicates with a linux laptop over a USB-2 connection,
> but USB2 is limited to 30 meters.
>
> Keith
>
> --
> Keith Lofstrom          keithl at keithl.com
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