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NOTE: In addition to the troubleshooting steps presented below, you can click on the >>HELP links to see more detailed troubleshooting instructions in PDF format. The >>HOWTO links are intended to assist you in checking your system configurations. Alternatively, you may download or view the full troubleshooting guide regarding this issue, which is attached here in PDF format.
The reader beeps but the door is kept closed, after the card has been read. (The controller fails to recognize the output from the reader.)
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CAUSE |
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1. The output cable connector inside the device is not properly connected.
2. The output wires may be broken or disconnected.
3. Defective device.
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SOLUTION |
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1. Connect the output cable connector inside the device.
2. If some output wire is broken or disconnected, repair it.
3. Replace the device.
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 When the reader is generating output signals.
a. Data signals are NOT received on the controller side. >>HOWTO2
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CAUSE |
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1. The data communication wire may be broken or disconnected.
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SOLUTION |
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1. If some output wire is broken or disconnected, repair it.
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b. Data signals are received on the controller side.
_>> Is there any distortion/noise on the line?
_ __ b-1. No, there is almost no distortion/noise
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CAUSE |
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1. Different formats between the reader and the controller.
2. Wrong connection of data wires between the reader and the controller.
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SOLUTION |
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1. Use an identical data format between the reader and the controller.
__(Wiegand or ABA Track II) >>HELP1
2. Make sure the data cable wires are properly connected
__between the reader and the controller. >>HELP2
__>> Wiegand0, Wiegand1
__>> CLS, DATA, CLOCK
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___ b-2. Yes, the distortion/noise problem is serious.
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CAUSE |
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1. Noise is introduced into the data wires, causing distortion
__of the data and signals.
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SOLUTION |
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1. Connect unused data wires (if any) to the ground(GND).
2. Use a repeater.
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