Re: How do electronic hotel door locks work?

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Article #2496

#2496

From: tla
Date: Thu, 05 Feb 1987 17:12

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The ones I have seen are, I believe, entirely mechanical.  That
is why you see no wires.  The card has a pattern of holes that must
match up with a pattern inside the lock to go in fully and your 
force (on the card) moves the lock mechanism.  The lock is
(re-)programmed by inserting a matching (identical? or
complementary?) card inside the lock.  One some you can see the
other card a little through a crack or slot in the lock.  The
internal card can be replaced by staff after each guest and the
mating cards given to the next guest.  

There maybe some electronic system in use but I haven't seen one.


			     --	Terry L Anderson
				AT&T Bell Laboratories -- Liberty Corners
				UUCP:     ...!ihnp4!daimler!kaiser!tla
				TeleMail: Terry.Anderson
				(201) 580-4428

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Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!ihnp4!kaiser!tla
From: tla@kaiser.UUCP
Newsgroups: misc.wanted,sci.electronics
Subject: Re: How do electronic hotel door locks work?
Message-ID: <433@kaiser.UUCP>
Date: Thu, 5-Feb-87 12:12:41 EST
Article-I.D.: kaiser.433
Posted: Thu Feb  5 12:12:41 1987
Date-Received: Sat, 7-Feb-87 12:44:58 EST
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Organization: AT&T Bell Laboratories, Liberty Corner
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