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card reader problem: random card rejects
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| bigbuilding |
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Posts: 10
Joined: 12 Sep 2006
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Posted: Fri Jan 19, 2007 8:31 pm
Post subject: card reader problem: random card rejects
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I have a card reader that will randomly reject cards (card misread) for no reason. I figured we should have the contractor replace the reader which they did, still getting random rejects. I looked through previous invoices from our contractor and this reader has been replaced several times.
Any ideas on the problem?
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| Sir Flannel |
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Posts: 125
Joined: 24 Apr 2004
Location: Texas
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Posted: Fri Jan 19, 2007 10:43 pm
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What is the distance from the reader to the access panel? The limit with Wiegand is 500 feet, and that's with the proper wire. What wire is used in the circuit? It's supposed to be shielded, NON twisted pair. What access system is it? Some systems will give errors if the card does not match the settings in the system. Is there any information in the event log? What is the reader mounted on or near? Some high voltage interference might affect the card reads. Is it the same card<s> all the time? Does the same card work at the other readers? Does the same reader sometimes read a card and sometimes reject the same card?
_________________
There's no place like 127.0.0.1
There are 10 kinds of people in this world: Those who understand binary, and those who don't
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| bigbuilding |
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Posts: 10
Joined: 12 Sep 2006
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Posted: Fri Jan 26, 2007 11:01 pm
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Its CCURE, the panel is one level below, definately not more than 500ft.
nothing in the event log just card rejected, misread.
There is another card reader right next to this one and it works fine.
People get a card reject then use it again and it works fine.
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| Sir Flannel |
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Posts: 125
Joined: 24 Apr 2004
Location: Texas
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Posted: Fri Jan 26, 2007 11:58 pm
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Ok, for a temporary trial, can you switch the reader ports? Take the wires from port A and put them on port B? To see if the problem stays with the reader or with the port it's hooked to. I'm sorry I don't recall, did you try re-running the wire?
Also, does this particular system have the ability to operate without contact with the server? Could it be that the panel is losing comm with the server and denying because it can't access the database? That's probably a longshot, but you mention nothing in the log at all. That leads me to think there's a short in the wire somewhere.
_________________
There's no place like 127.0.0.1
There are 10 kinds of people in this world: Those who understand binary, and those who don't
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