Old Intercom Replacement - Wall Mount Tablet

I replaced my 90's vintage Intercom system with a Wall Mounted Smart Home Controller Hub, utilizing a Fire Tablet. The mount was custom made in consultation with Mike at MB Mounts to cover the large cavity left by removal of the old Intercom master controller - with the oversize panel, no drywall patching/texture/paint is required! See their products at https://mbmounts.com/products/tablet-flush-mount The Tablet is a Fire HD 10 from Amazon https://www.amazon.com/Fire-HD-10/dp/B07K1RZWMC And the Power Supply is by Mean Well also available at Amazon https://www.amazon.com/MEAN-WELL-LRS-150-12-Enclosed-Switchable/dp/B00M8TBJLK/ref=sr_1_24?dchild=1&keywords=MEAN%2BWELL&qid=1611740653&sr=8-24&th=1 Post Script - I changed out the Power Supply that is shown in the video (and linked above) for a sealed unit - I didn't like the exposed AC Mains Voltage exposed on the Terminal Strip of the original https://www.amazon.com/MEAN-WELL-XLG-150-12A-CLG-150-12A-Replacement/dp/B07WGBL1SW/ Note - a mis-speak at 1:20 - I referred to "door & window sensors" when should have been the Intercom Remote Stations (I'm also working on an alarm replacement and had this in back of mind) - that becomes obvious as video goes on, but that was a dohhhh moment I realized after the fact :) For the final config and the Wall Station replacements with Echo Dots, see Part 2 & 3 - https://youtu.be/VoU0jSvtVVQ