Digital Conference System

Introduction to POE switch technology and advantages

2022-05-12

POE switch technology and advantages
An authoritative expert in POE switches - Guangzhou DSPPA Audio Co., Ltd. Today, we will introduce the technology and advantages of POE switches to you.
Our series of high-quality products represented by 8 Port Conference POE Switch have become industry models, and buyers from all over the world are welcome to wholesale and purchase.
The mainstream PoE switches in the market have two standards, IEEE802.3af and 802.3 at, which define the power supply of 15.4W and 30W respectively. However, due to the loss in the transmission process, the actual power supply is 12.95W and 25.5W, and the rated voltage is 12.95W and 25.5W. For DC 48v.

When using a PoE switch that supports the IEEE802.3af standard, the power of the powered device cannot exceed 12.95W; similarly, when using a PoE switch that supports the IEEE802.3at standard, the power of the powered device cannot exceed 25.5W.

Generally, a PoE switch that supports the IEEE802.3af/at standard at the same time, the power supply is adaptive. For example, if it is connected to a 5W device, it provides 5W of power; if it is connected to a 20W device, then it provides 20W of power.

A PoE switch is a switch that supports power supply to the network cable. Compared with ordinary switches, terminals (such as APs, digital cameras, etc.) do not need to perform power wiring, and are more reliable for the entire network. A PoE switch can not only provide the transmission function of ordinary switches, but also provide power supply to the other end of the network cable.

The device at the back end of PoE only needs one network cable, which saves space, can be moved at will (simple and convenient), and saves costs.

As long as the PoE switch is connected to the UPS, it can supply power to all POE-related devices at the back end when the power is off. Users can automatically and safely mix legacy and PoE devices on the network that can coexist with existing Ethernet cables.