In today's access control system design, power supply is an often overlooked but extremely critical link. The emergence of PoE++ technology (also known as the IEEE 802.3bt standard) has greatly enhanced the ability of a single network cable to transmit data and power at the same time, providing a simpler, more reliable and more cost-effective infrastructure solution for access control systems with modern features and high integration. In this article, we will deeply explore how PoE++ specifically empowers the access control system, and analyze its actual value in design, deployment, and maintenance.
How PoE++ provides more stable power for access control readers
The power requirements of traditional access control card readers, especially high-end models that support biometrics (such as fingerprint and facial recognition) or large-size touch screens, far exceed the 15.4 watt upper limit of the early PoE standard. PoE++ Type 3 can provide up to 60 watts of power, which ensures that the card reader will not restart or malfunction due to unstable power supply when performing complex operations and data transmission.
Stable power supply is directly related to system reliability. At key entrances and exits, if equipment failure is caused by insufficient power supply, it may cause safety hazards. This hidden danger is real and cannot be ignored. PoE++ uses network cables to provide centralized power supply, which eliminates the risk of single point failure that independent power adapters have. hole, and simplified line management, which means that when the card reader supporting PoE++ is deployed, there is no need to find and install additional power sockets near the door frame. As a result, the installation difficulty is significantly reduced, and the wiring cost is significantly reduced. These are real changes and results.
Why PoE++ can simplify the wiring project of the access control system
The wiring of traditional access control systems generally includes data lines, power lines, and sometimes control lines for electric locks. The lines are complicated, troublesome to construct, and inconvenient for later maintenance and adoption. Once PoE++ technology is used, a standard CAT6A or higher network cable can carry all functions, truly realizing the concept of "one line of communication".
This not only makes the pipe threading operation easier, but also greatly reduces the number of wires and connectors used, reducing material costs and potential connection failure points. For renovation projects, with the help of existing or newly added single network cabling channels in the building, it is possible to quickly deploy or upgrade access control points. There is no need to dig new wall trenches for strong current lines, which protects the integrity of the building structure and speeds up the progress of the project.
What are the advantages of PoE++ power supply for electric lock control of access control systems?
In the access control system, electronically controlled locks are the ones that consume more power, especially electromagnetic locks or high-power motor locks. Due to its high power output, PoE++ can supply stable power to most electric locks directly or with the help of an intermediate controller. It is no longer necessary to arrange a 220V AC power supply specifically for electric locks. This situation eliminates the crossover phenomenon of strong and weak currents at the door point, thereby improving electrical safety.
In the event of a power outage emergency, the entire system can be more easily integrated with a centralized UPS (uninterruptible power supply). As long as the power supply of the network switch has backup support, all PoE++ access control devices connected to it, including card readers and electric locks, can continue to operate. This ensures the control of emergency evacuation channels, or provides basic safety functions when the mains power is cut off, thus improving the overall anti-brittleness capability of the system.
How to choose a suitable PoE++ switch to deploy an access control system
When selecting a PoE++ switch, you must first calculate the overall power requirements of all access control points. The maximum output power of each PoE++ port, such as 30 watts or 60 watts, and the total power supply budget of the switch must be greater than the sum of the peak power of all access devices, and an appropriate margin must be left. For large access control systems, the use of manageable PoE++ switches is very critical.
Managed switches allow remote monitoring of the power supply status, power consumption, and operation of each port. If a certain access control point device fails or has abnormal power consumption, the administrator can remotely restart the power supply of the port to quickly troubleshoot the problem without the need for personnel to go to the site. In addition, with the help of time-based policies, the power consumption of devices in certain areas can be automatically reduced during non-working hours, thereby achieving energy efficiency monitoring. Provide global procurement services for weak current intelligent products!
What are the additional security considerations for PoE++ access control systems?
Any system powered by network cables must consider security risks. The PoE++ access control system should be deployed in a dedicated network or VLAN where both physical and logical security are protected, and should be isolated from the network that controls cameras and office computers to prevent attacks on network infrastructure from affecting the security system.
When selecting equipment, you should choose products that are certified and compliant with the IEEE 802.3bt standard. Those non-standard PoE devices may have unstable power supply voltage or omissions in the negotiation mechanism. If used for a long time, the expensive access control terminal will be damaged. In addition, in order to ensure the safety of power supply, shielded cables should be used during wiring and should be well grounded to prevent surges or electromagnetic interference from affecting data and power transmission, thereby ensuring the integrity of command and authentication information transmission.
What potential can PoE++ play in future access control system integration?
PoE++ has high bandwidth characteristics, and PoE++ has high power characteristics, which paves the way for deep integration of access control systems and other security subsystems. The future access control point may not only be a card reader, but a device with integrated card reading function, a device with integrated face recognition function, a device with integrated intercom function, a device with integrated status indicator function, or even a multi-functional intelligent terminal with integrated environmental sensor function. All these devices can be driven through a network cable, and all of these devices can transmit data through a network cable.
Going one step further, with the application of the Internet of Things (IoT) in building automation, PoE++ can provide flexible power supply and networking solutions for access controllers, door status sensors, intrusion detectors, etc., so that all security equipment can be deployed, managed, and analyzed based on a unified IP network architecture, thereby building an overall security environment that is truly intelligent and capable of coordinated response.
When you are planning or upgrading your access control system, are you more inclined to use the centralized power supply PoE++ solution, or will you continue to use the traditional independent power supply model? What do you think is the biggest challenge or concern? Welcome to share your views in the comment area. If this article is helpful to you, please also like it and share it with more colleagues.
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