How to choose an access control system?
The access control controller is the core of the access control system. It uses the combination of modern computer technology and various identification technologies to reflect an intelligent management method. The number of doors controlled by each controller can be divided into single-door controllers, double-door controllers, four-door controllers,s and multi-door controllers. The selection of access control controllers is very important. How to choose the correct access controller? ? What skills are there?
1. Purchase an access controller with anti-crash and self-check circuit design
2. Access controller with three-level lightning protection circuit design
3. The design of the communication circuit should have a self-test function, which is suitable for the needs of large-scale system networking
4. Manufacturers need to provide authoritative quality certification
(1)Purchase an access controller with anti-crash and self-check circuit design
If the access controller crashes, the user will not be able to open or close the door, which will inconvenience the customer and increase the maintenance volume and maintenance cost of the engineer. The access controller must be installed with a reset chip or selected. CPU with reset function, generally 51 series CPU does not have reset function and needs to install reset chip. At the same time, it must have a self-check function. If the circuit crashes due to interference or abnormal conditions, the system can self-check and self-start instantly.
(2)Access controller with three-level lightning protection circuit design.
Since the communication lines of the access control controller are distributed and easily attacked by induction lightning, the access control controller must be designed for lightning protection. We recommend a three-level lightning protection design. First, the large current and high voltage generated by the lightning strike are released through the discharge tube, and the current and voltage entering the circuit are clamped through the inductance and resistance circuit. The residual current and voltage are then discharged at high speed through the TVS high-speed discharge tube before they cause damage to the circuit. The lightning protection index requires 4000V induction lightning for 50 consecutive times without damage to the equipment. If the lightning protection index is high, the anti-surge and anti-static ability of the equipment will be correspondingly high.
(3)The design of the communication circuit should have a self-test function, which is suitable for the needs of large-scale system networking.
If the control program is applied, it will undoubtedly increase the training cost and time of the engineer for the customer. The customer is not easy to master the operation of the software and will be angry at the service attitude of the engineer, which will have a bad impact on the collection and renewal of orders. If the customer does not understand the software, it is easy to cause misoperation, resulting in practical inconvenience. Therefore, we suggest that engineers must pay attention to whether the operation of the software is simple, intuitive, and convenient when choosing an access control controller. A one-sided emphasis on powerful functions is not suitable for promotion.
(4) Manufacturers need to provide authoritative quality certification
Manufacturers need to provide authoritative ISO9001 quality certification and product testing reports from government quality regulatory agencies. And take care to verify the authenticity of these documents. The quality of products with corresponding third-party certification and supervision will be guaranteed.
Our company got ISO9001 quality certification and other product testing reports from government quality regulatory agencies.
Whether you have any questions about purchasing or using it, you can call or email us at any time. Tel: +86 755 29450011 Email: sales@s4a-access.com
Author: Written by Ms.Anna Zhang 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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