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Install a 4 doors green control board, one of the card readers, FCARD3500T software ZAI data monitoring prompts the card reader circuit abnormal

Details of the problem:

Hello, install a 4 doors green control board, one of the card readers, FCARD3500T software ZAI data monitoring prompts the card reader line abnormal. What is the reason?

Expert answer:

Hello, please follow the wiring method in the manual to check whether the current door wiring is wrong. Or compare the connection of the other three doors. If you have any questions, please consult us, technical QQ: 2880150932

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