[ale] Need an Ethernet cutoff relay

[Bob Toxen]

I assume that you are joking, unless you want the SWAT team to visit.
Instead, a recording of a snarling vicious dog would be
effective and legal.

On Thu, Jul 29, 2021 at 01:54:20PM -0400, Jim Kinney wrote:
> So I guess my plan of having a prerecorded sound of a shotgun being racked followed by a taser discharge and a strobe light are secondary?
> 
> On July 29, 2021 12:48:17 PM EDT, Robert Reese via Ale <ale at ale.org> wrote:
> >Hi Phil,
> >
> >Look at the offerings by Sequent Microsystems. They can be operated by
> >a Pi. So you can roll your own bluetooth/wifi/etc. solution.  Yes, they
> >have DIN rail mounts available. 
> >https://sequentmicrosystems.com/collections/all-io-cards
> >
> >Also, there are many switches, such as were used in pinball machines,
> >that can activate with the type of shock you're describing. All cheap,
> >reliable, and easy to implement.
> >
> >Cheers,
> >R~
> >
> >
> >Thursday, July 29, 2021, 12:18:24 PM, you wrote:
> >
> >> Great idea.  X-10 remote control could be used to kill power.
> >> X-10 can, of course, be controlled by computer, phone, or otherwise.
> >
> >> On Thu, Jul 29, 2021 at 10:26:56AM -0400, Phil Turmel via Ale wrote:
> >>> If you can't find anything else, consider a small brainless
> >>> unmanaged POE switch and kill its power.
> >
> >>> On 7/26/21 2:18 PM, Alex Carver via Ale wrote:
> >>> >I've been searching for over a week now with no luck.
> >>> >
> >>> >What I'm looking for is a small-ish (DIN rail mount would be ideal)
> >>> >relay device that accepts a signal and will completely cut off all
> >four
> >>> >pairs of an Ethernet connection.   It should at least be shielded
> >(so no
> >>> >cheap switch boxes from Amazon adorned with Brother P-Touch labels,
> >>> >those are also manual push buttons :) ).
> >>> >
> >>> >Some of the closest I've gotten are A/B switches but they're in
> >desktop
> >>> >cases and are just too big.
> >>> >
> >>> >Purpose:
> >>> >I am going to be installing a VoIP door station to replace the
> >doorbell
> >>> >button. It's a PoE unit so I do need all the pairs. It has several
> >>> >additional I/O and power ports for various uses, one of which
> >provides a
> >>> >steady 12 VDC when the unit is up. I plan to link this to a
> >latching
> >>> >relay in such a way that if the 12 VDC suddenly disappears (e.g.
> >someone
> >>> >took a baseball bat and adjusted the camera angle), it will break
> >the
> >>> >Ethernet lines to the exposed patch cable making it a dead cable
> >which a
> >>> >computer can't use.
> >>> >
> >>> >The box itself doesn't need the latching relay, it just needs a
> >simple
> >>> >relay that is either on or off with the application of signal. 
> >I'll
> >>> >take care of the latching part separately with other external
> >relays.
> >>> >
> >>> >I just can't seem to find anything like this.  Just for fun I tried
> >an
> >>> >industrial PoE injector that I had handy which takes 24 VDC in but
> >the
> >>> >data lines are passed right through the unit so even with it off it
> >>> >doesn't stop the drop from working as a minimum 10/100 (two pair)
> >port.
> >>> >_______________________________________________
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> >>> >
> >
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> >
> >
> >
> >
> >
> >Cheers,
> >Robert~
> >
> >_______________________________________________
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> 
> -- 
> Computers amplify human error
> Super computers are really cool