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  • Q: 46) What are the three core components of all control technology systems?

  • A:

    Feedback controls are widely used in modern automated systems. A feedback control system consists of five basic components: (1) input, (2) process being controlled, (3) output, (4) sensing elements, and (5) controller and actuating devices. 

  • Q: 47) The access control integrated machine is used with the special power supply for access control, how should I wire it?

  • A:

    The access control integrated machine cooperates with the access control special power supply to connect the lock, only need to output a relay signal to the access control special power supply, and then the access control special power supply directly controls the lock.

  • Q: 48) How to lock the access control integrated machine?

  • A:

    Locks can be divided into normally open locks when energized and normally closed locks when energized. There are 4 situations as shown:

    (1) Normally closed when power on (shared power supply with fingerprint machine)

    (2) Power-on normally open the lock (shared power supply with fingerprint machine)

    (3) Normally closed when energized (powered separately from the lock)

    (4) Power-on normally open the lock (electric lock is powered separately)


  • Q: 49) How to connect the external reader of the access control system?

  • A:

    Connect the Wiegand output terminal of the external read head to the Wiegand input terminal of the access control integrated machine.

  • Q: 50) How many read heads can be connected to the access control integrated machine?

  • A:

    The common access control all-in-one machine can only connect one read head at the same time. If there are multiple reading heads, please choose multiple door access controllers, or you can install specific models.

  • Q: 1)What is mobile access control?

  • A:

    Mobile access control enables mobile devices — such as smartphones and wearables — to function as credentials in providing access to secured buildings, rooms, and areas. ... It also provides a more cost-effective and simpler way for companies to manage identification credentials.

  • Q: 2)What is an advanced mobile access control?

  • A:

    Mobile access control presupposes that mobile phones, smartphones, tablets, and wearable electronic devices function as users' credentials when they enter offices or other business facilities. ... Electronic devices enable biometric authentication without the need to invest in expensive biometric readers.

  • Q: 3) What does access control do?

  • A:

    Access control is a fundamental component of data security that dictates who's allowed to access and use company information and resources. Through authentication and authorization, access control policies make sure users are who they say they are and that they have appropriate access to company data.

  • Q: 4) Which best describes access controls?

  • A:

    Which best describes access controls? Access controls help protect against threats and vulnerabilities by reducing exposure to unauthorized activities and providing access to information and systems to only those who have been approved.

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Contact Us
  S4A-Security For All.S4A Industrial Co., Limited, Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now. With the belief that we do one thing well in a lifetime, our CEO has been in this industry for 15 years. During the past 10 years, our products have been exported to various countries and regions. And 90% of customers come from the recommendations of cooperative customers, and 80% of the turnover comes from cooperative customers in the past 10years.Your business is a plant, we are the gardener, our mission is to water and fertilize the plant, and make it become the towering tree. We attach great importance to the partner's appeal, customer's suggestions, and feedbacks. To strengthen Product quality awareness, client's service awareness. Our clients and S4A are on the same path walking for many years.       S4A's future would be even more brilliant, this is related to all of our staff's working sweat. When you join this team, you will feel an invisible power to drive walk forward. S4A mainly produces a series of security Door Access Control such as:Network Access Controller, Locker board, Electromagnetic lock, Standalone door Controller, Automatic door opener, etcOur team can manufacture products, sell products, and do after-sales.In the realm of access control, one company stands out for its unwavering commitment to providing security services for everyone. S4A, which stands for "Security for All," has been at the forefront of access control technology for the past 13 years. With its own state-of-the-art factory and a strong focus on research and development, S4A has continuously delivered cutting-edge access control machines with the latest functions. Their dedication to product quality, customer feedback, practicability, and cost performance sets them apart as a leader in the industry.Factory and R&D Expertise:S4A takes pride in its fully-equipped factory, where skilled engineers and technicians work tirelessly to develop and manufacture access control solutions that meet the highest standards. The company's investment in research and development has resulted in a steady stream of innovative products that cater to evolving security needs.By staying ahead of the curve, S4A ensures that their customers have access to the latest advancements in access control technology.Quality Assurance and Customer Feedback:At S4A, product quality is of paramount importance. The company adheres to rigorous quality control procedures throughout the manufacturing process to guarantee the reliability and durability of their access control machines. Each product undergoes comprehensive testing to ensure it meets industry standards and exceeds customer expectations. S4A also places great value on customer feedback, actively seeking input to continuously improve their products and services. By listening to their customers, S4A maintains a customer-centric approach and delivers solutions that address real-world security challenges.Practicability and Cost Performance:S4A understands that access control solutions must not only be technologically advanced but also practical and cost-effective. The company's emphasis on practicability means that their products are designed to be user-friendly, easily integrated into existing systems, and adaptable to various environments. S4A's access control machines are known for their intuitive interfaces, simple installation processes, and seamless compatibility with other security systems. Additionally, S4A strives to provide cost-effective solutions without compromising on quality. Their competitive pricing ensures that security is accessible to businesses and individuals of all sizes.With 13 years of industry experience, S4A has cemented its position as a leading provider of access control solutions. Through their dedication to "Security for All," the company has set a benchmark for excellence in product quality, customer satisfaction,practicability, and cost performance. S4A's in-house factory and research and development capabilities enable them to stay at the forefront of technological advancements in the field of access control. As the company continues to evolve and innovate, S4A remains committed to empowering individuals and organizations with the highest level of security, ensuring that everyone can enjoy the peace of mind that comes with a reliable and efficient access control system.We can create value for you!Quality takes great importance for a company's credibility, and buyer's every penny spend must worth it. That is our most basic principle. Our business mainly for wholesale, so we could offer large quantities at competitive prices. During the past 10 years, We work hard to create value for our customers, and with our help, customers have an increasing market share. 99% of the customer...<
  • Address

    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.

  • Call us

    0086 755 29450011

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