With the rapid development of Internet, users' demand for communication has gradually extended from traditional low-speed services such as telephone, fax and telegraph to high-speed broadband services such as Internet access, videophone and video on demand. Users' demand for Internet speed is also higher and higher. Ethernet Poe power supply switch was also born.

POE (power over Ethernet) technology eliminates the problem of installing a separate power supply device on each IP network terminal device by remotely supplying power to the connected network devices (such as wireless LAN AP, IP phone, Bluetooth AP, IP camera, etc.) on the standard Ethernet data cable, so that it is not necessary to deploy a separate power supply system for the device on the use site, It can greatly reduce the wiring and management cost of deploying terminal equipment, and promote the development of related fields.

Poe switch is based on the traditional Ethernet switch, which adds Poe function internally, so that the switch not only has the function of data exchange, but also can transmit power through network cable at the same time. The solution of Poe switch can not only effectively solve the disadvantage that Poe power supply module cannot manage network, but also provide rich functional features, such as power supply priority management, overheating and overload protection, QoS planning, security feature support, etc. at the same time, it avoids the problem of insufficient uplink bandwidth of ONU with built-in Poe function. Poe switch usually provides 2 * Ge uplink port or even 10 Gigabit uplink.

Poe switches have a wide variety of products. According to the AP access rate, they can be divided into 100m Poe switches and full Gigabit Poe switches. From the network level, they can be divided into two-layer Poe switches and three-layer Poe switches. Poe switches are suitable for 802.3af and 802.3af At power supply technology support. Rich products and perfect power supply technology can provide strong support for WLAN construction

Poe switch provides a variety of power supply modes

Ethernet Poe power supply is a revolutionary technology. It provides reliable DC power through the same cat 5 / Super Cat 5 twisted pair cable carrying Ethernet data, expanding the already powerful functions of Ethernet. Poe will change the power supply mode of switches. Network administrators can maximize the use of existing switches and deploy a new series of applications.

With the wide application of Ethernet, RJ-45 network socket is widely used all over the world, so all kinds of Poe devices are compatible. Poe can operate without changing the cable structure of the Ethernet path. Therefore, the use of Poe system not only saves cost and is easy to wiring and installation, but also has the ability of remote power on and power off. Poe intelligent power supply can well solve the power problem required by the terminals of the Internet of things, and will play a very important role in the future development of the Internet of things.