[ale] Need an Ethernet cutoff relay

Bob Toxen transam at VerySecureLinux.com
Sun Aug 1 16:40:03 EDT 2021


It would be the mailman or a neighbor or a peddler that calls the cops,
not the burglar silly.

On Fri, Jul 30, 2021 at 06:54:14PM -0400, Robert Reese wrote:
> ROFL - I doubt someone breaking into a house to be met with the sound of a ratcheting shotgun is gonna call the cops, especially since the sound of a real one is perfectly legal :P
> 
> 
> Friday, July 30, 2021, 11:42:36 AM, you wrote:
> 
> > 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.
> >> >>> >_______________________________________________
> >> >>> >Ale mailing list
> >> >>> >Ale at ale.org
> >> >>> >https://mail.ale.org/mailman/listinfo/ale
> >> >>> >See JOBS, ANNOUNCE and SCHOOLS lists at
> >> >>> >http://mail.ale.org/mailman/listinfo
> >> >>> >
> >> >
> >> >>> _______________________________________________
> >> >>> Ale mailing list
> >> >>> Ale at ale.org
> >> >>> https://mail.ale.org/mailman/listinfo/ale
> >> >>> See JOBS, ANNOUNCE and SCHOOLS lists at
> >> >>> http://mail.ale.org/mailman/listinfo
> >> >> _______________________________________________
> >> >> Ale mailing list
> >> >> Ale at ale.org
> >> >> https://mail.ale.org/mailman/listinfo/ale
> >> >> See JOBS, ANNOUNCE and SCHOOLS lists at
> >> >> http://mail.ale.org/mailman/listinfo
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >Cheers,
> >> >Robert~
> >> >
> >> >_______________________________________________
> >> >Ale mailing list
> >> >Ale at ale.org
> >> >https://mail.ale.org/mailman/listinfo/ale
> >> >See JOBS, ANNOUNCE and SCHOOLS lists at
> >> >http://mail.ale.org/mailman/listinfo
> 
> >> -- 
> >> Computers amplify human error
> >> Super computers are really cool
> 
> 
> 
> 
> 
> Cheers,
> Robert~


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