[ale] Need an Ethernet cutoff relay

Jim Kinney jim.kinney at gmail.com
Fri Jul 30 15:43:02 EDT 2021


Only joking a little.

A friend DID have a shotgun sound on playback as the alarm system. Came home one day to a kicked in front door and nothing was touched.

Barking dog sounds are equally effective.

Apparently all it takes to get a SWAT team to show up is a prank call.

On July 30, 2021 11:42:36 AM EDT, Bob Toxen via Ale <ale at ale.org> 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
>> >>> >
>> >
>> >>> _______________________________________________
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>> >> _______________________________________________
>> >> 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
>_______________________________________________
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>Ale at ale.org
>https://mail.ale.org/mailman/listinfo/ale
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>http://mail.ale.org/mailman/listinfo

-- 
Computers amplify human error
Super computers are really cool
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