Access control system picks three tips

February 12 00:05:11, 2020

[ Huaqiang Security Network News ] The choice of access control system is also very important. If you buy a bad quality product, it is nothing but an insecure life and property for consumers! Today, Xiaobian mainly introduces you to the three skills of choosing the access control system;
Tip 1: Access control controller with three-level lightning protection circuit design Because the communication line of the access controller is distributed and vulnerable to inductive lightning, the access controller must be designed for lightning protection. We recommend a three-level lightning protection design, which first discharges the large current and high voltage generated by the lightning strike through the discharge tube, and clamps the current and voltage entering the circuit through the inductor and the resistance circuit. The residual current and voltage are then released at high speed by the TVS high speed discharge tube before it damages the circuit. The lightning protection index requires 4000V induction lightning for 50 consecutive times without damage to the equipment. The lightning protection index is high, and the anti-surge and anti-static ability of the equipment will be correspondingly high. Some products advertise that they also have 1500V lightning protection capability. In fact, this indicator is available on all chips, and does not have the ability to prevent lightning strikes and surges.
Tip 2: Choose an access controller with anti-crash and self-test circuit design. If the access controller crashes, it will make the user unable to open the door or close the door, which will bring great inconvenience to the customer and increase the engineering. For the maintenance and maintenance cost of the quotient, the access controller must be equipped with a reset chip or a CPU with a reset function. Generally, the CPU of the 51 series does not have a reset function, and a reset chip needs to be installed. At the same time, it must have a self-test function. If the circuit crashes due to interference or abnormal conditions, the system can self-test and self-start in an instant.
Tip 3: The application should be simple and practical, easy to operate. If the application control program is used, it will undoubtedly increase the cost and time of the training of the customer. The customer will not be able to master the operation of the software and will be angered by the service attitude of the contractor. Will bring bad influence. If the customer does not understand the software, it is easy to cause misoperation, resulting in practical inconvenience. Therefore, we recommend that the engineering company choose the access controller when it is necessary to pay attention to whether the operation of the software is simple and intuitive.
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