What is the reason why the access control card reader cannot read the card? If everything is normal when theaccess control system is first installed, and the card reader cannot read the card suddenly after a period of use, troubleshoot the problem:
The first step is to check whether the power supply is working properly
The second step, check whether the card reader is damaged
The third step, check whether there is strong magnetic interference around the card reader
If the above steps are eliminated and the card reader still does not read the card, the following fault causes can be determined:
The card reader device will generate some static electricity when used for a period of time. The accumulation of static electricity over a long period of time causes excessive power consumption. The shorter the use time, such a problem indicates that the card reader ages too quickly.
Solve the problem:
Before installation, choose a special power supply with good quality and gated power. If this happens after use, power the electric lock and the card reader separately, and add a power supply to the card reader separately.
The reading speed of the access control card reader is slow and the sensing distance is getting closer. Solve the problem:
The first step: whether the access control reader is installed on the metal;
Step 2: Whether to swipe in and out, such as swiping in and out to see how far the two card readers are.
cause of the issue:
If the card reader is mounted on metal, because metal has a shielding function, part of the radio waves emitted by the card reader is shielded by the metal. If the card is swiped in and out, the same problem will occur if the two card readers are installed too close. The two readers emit radio waves at the same time, and the mutual interference of the radio waves will cause slow card reading, and the card readers that are too close will not read the card.
Solve the problem:
Observe the installation environment of the card reader during installation. For example, the back of the card reader is made of metal. When installing the card reader, a plastic plate (special material) should be added to the back of the card reader. If conditions do not permit, a shielding plate should be installed on one of the card readers.
Author: Written by S4A from S4A INDUSTRIAL CO.,LIMITED
Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:#601,floor 6 ,building 1,JINFANGHUA industrial zone, Bantian St. Longgang Dist. Shenzhen, PRC.
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