<html><head></head><body>Set a watcher to detect loss of connect on the far end and use that to trigger an 8 pole relay to open.<br><br><div class="gmail_quote">On July 31, 2021 4:45:02 AM EDT, Alex Carver via Ale <ale@ale.org> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">I don't need a switch sensitive to shock, there is an accelerometer<br>already built into the camera. I need a GHz/GbE capable relay that can<br>cut off all four pairs which means it has to be purpose built rather<br>than GPIO like those RPi hats.<br><br>This is also not meant to be controlled by me over the network, instead<br>the relay is controlled out-of-band with hardwire that comes from the<br>camera back to the relay. Once the accelerometer trips, the relay will<br>drop out and I'll have a latch that prevents it from being powered up<br>again until I go into the closet and press a bypass switch.<br><br>On 2021-07-29 09:48, Robert Reese via Ale wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;">Hi Phil,<br><br>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. <a href="https://sequentmicrosystems.com/collections/all-io-cards">https://sequentmicrosystems.com/collections/all-io-cards</a><br><br>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.<br><br>Cheers,<br>R~<br><br><br>Thursday, July 29, 2021, 12:18:24 PM, you wrote:<br><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;">Great idea. X-10 remote control could be used to kill power.<br>X-10 can, of course, be controlled by computer, phone, or otherwise.<br></blockquote><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;">On Thu, Jul 29, 2021 at 10:26:56AM -0400, Phil Turmel via Ale wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #8ae234; padding-left: 1ex;">If you can't find anything else, consider a small brainless<br>unmanaged POE switch and kill its power.<br></blockquote></blockquote><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #8ae234; padding-left: 1ex;">On 7/26/21 2:18 PM, Alex Carver via Ale wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #fcaf3e; padding-left: 1ex;"> I've been searching for over a week now with no luck.<br><br> What I'm looking for is a small-ish (DIN rail mount would be ideal)<br> relay device that accepts a signal and will completely cut off all four<br> pairs of an Ethernet connection. It should at least be shielded (so no<br> cheap switch boxes from Amazon adorned with Brother P-Touch labels,<br> those are also manual push buttons :) ).<br><br> Some of the closest I've gotten are A/B switches but they're in desktop<br> cases and are just too big.<br><br> Purpose:<br> I am going to be installing a VoIP door station to replace the doorbell<br> button. It's a PoE unit so I do need all the pairs. It has several<br> additional I/O and power ports for various uses, one of which provides a<br> steady 12 VDC when the unit is up. I plan to link this to a latching<br> relay in such a way that if the 12 VDC suddenly disappears (e.g. someone<br> took a baseball bat and adjusted the camera angle), it will break the<br> Ethernet lines to the exposed patch cable making it a dead cable which a<br> computer can't use.<br><br> The box itself doesn't need the latching relay, it just needs a simple<br> relay that is either on or off with the application of signal. I'll<br> take care of the latching part separately with other external relays.<br><br> I just can't seem to find anything like this. Just for fun I tried an<br> industrial PoE injector that I had handy which takes 24 VDC in but the<br> data lines are passed right through the unit so even with it off it<br> doesn't stop the drop from working as a minimum 10/100 (two pair) port.<hr> Ale mailing list<br> Ale@ale.org<br> <a href="https://mail.ale.org/mailman/listinfo/ale">https://mail.ale.org/mailman/listinfo/ale</a><br> See JOBS, ANNOUNCE and SCHOOLS lists at<br> <a href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a><br><br></blockquote></blockquote></blockquote><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #8ae234; padding-left: 1ex;"><hr>Ale mailing list<br>Ale@ale.org<br><a href="https://mail.ale.org/mailman/listinfo/ale">https://mail.ale.org/mailman/listinfo/ale</a><br>See JOBS, ANNOUNCE and SCHOOLS lists at<br><a href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a><br></blockquote><hr>Ale mailing list<br>Ale@ale.org<br><a href="https://mail.ale.org/mailman/listinfo/ale">https://mail.ale.org/mailman/listinfo/ale</a><br>See JOBS, ANNOUNCE and SCHOOLS lists at<br><a href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a><br></blockquote><br><br><br><br><br>Cheers,<br>Robert~<hr>Ale mailing list<br>Ale@ale.org<br><a href="https://mail.ale.org/mailman/listinfo/ale">https://mail.ale.org/mailman/listinfo/ale</a><br>See JOBS, ANNOUNCE and SCHOOLS lists at<br><a href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a><br><br></blockquote><hr>Ale mailing list<br>Ale@ale.org<br><a href="https://mail.ale.org/mailman/listinfo/ale">https://mail.ale.org/mailman/listinfo/ale</a><br>See JOBS, ANNOUNCE and SCHOOLS lists at<br><a href="http://mail.ale.org/mailman/listinfo">http://mail.ale.org/mailman/listinfo</a><br></pre></blockquote></div><br>-- <br>Computers amplify human error<br>Super computers are really cool</body></html>