[Gllug] security swipe cards

[will]

Matthew Thompson wrote:
>> Matt,
>>  they want to do a 10 door with upto 100 users as a trial. The 
>> off-line computer system sounds OK, whose system did you use?
>> Presumably the door systems are interlinked to a central "box" that 
>> has a serial port on it for the down load  facility. Is that interlink 
>> wiring capable of being run over an existing CAT5 network?
> 
> 
> We used to run a 2 door system - not sure of the manufacturer. We're now 
> in a managed building with around 80 controlled doors and turnstyles but 
> the system runs on a vevry old windows platform using 10base2!

We have turnstiles in the front hall of our building.  They have enough of a 
delay in reading a card and releasing their catch, and of exactly the correct 
height to be named 'nutcrackers'.  I hate them.

Will.


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