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re: Electronic key card locks
Posted on 12/16/15 at 10:01 am to DevilDogTiger
Posted on 12/16/15 at 10:01 am to DevilDogTiger
Never installed them but the ones where I work run off my infrastructure. I'm sure you could retrofit the doors. All that's really going on is a card reader reads the card, sends the info back to a central server over cat5 ethernet, the central server logs the requests, and either approves or denies entry. This sends a signal back to the door lock, often an extremely powerful electromagnet, and allows the door to be opened.
All of that could be done fairly easy as it is just cable to be run.
There are other issues involved. Typically there is an internal motion sensor to allow people to exit without swiping. Also safety regulations I'm sure, like in the event of a power outage, they probably have to fail open.
All of that could be done fairly easy as it is just cable to be run.
There are other issues involved. Typically there is an internal motion sensor to allow people to exit without swiping. Also safety regulations I'm sure, like in the event of a power outage, they probably have to fail open.
This post was edited on 12/16/15 at 10:03 am
Posted on 12/16/15 at 9:43 pm to WavinWilly
quote:Not quite. There's a panel that goes between the readers and the server. The quality/features of the panel and software is where you'll see the most cost in the system itself. And a panel that can handle 18 or so doors has to be pretty robust. (ETA: Actually, if you're talking about a school with sets of doors in multiple locations, you're looking at multiple panels for each area other wise, you'll be running cables everywhere.) But another poster is right... installing will cost a ton, especially if you're dealing with an old school. Brick, failing infrastructure, etc.
All that's really going on is a card reader reads the card, sends the info back to a central server over cat5 ethernet, the central server logs the requests, and either approves or denies entry. This sends a signal back to the door lock, often an extremely powerful electromagnet, and allows the door to be opened.
The big issue for a school is who administers the server, panel, readers, software? Because if something doesn't work correctly, do you just prop the doors until you can get contracted IT support out there? Schools typically don't have someone like this on staff.
This post was edited on 12/17/15 at 12:00 am
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