POE125U-4-AT

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Power over Ethernet (PoE) technology has been around for some time, and is becoming increasingly popular especially in networked surveillance, VoIP phones, and other connected systems. A common PoE device is the POE125U-4-AT. In this article, we look at the application fields and working principles of the POE125U-4-AT.

Applications

The POE125U-4-AT is an IEEE 802.3af- and IEEE 802.3at-compliant midspan power source for devices that require up to 45W of power. It is typically used for networked devices such as VoIP phones, IP cameras, wireless access points, and more. It is suitable for any type of Ethernet-based network, including 10/100/1000Mbps Ethernet and Gigabit Ethernet.

The POE125U-4-AT can power up to four devices simultaneously, thanks to its four easy-to-use power outputs. It is designed for indoor use and has a maximum power output of 125W. It has an operating temperature range of 0°C to +70°C.

Working principle

The POE125U-4-AT works by supplying power over the same Ethernet cables used to transmit data. The device has two types of ports: data-only ports (RJ-45 connectors) and power-over-Ethernet ports (RJ-45 connectors with 4-pin male or female connectors). Data-only ports are used to transmit data between devices, while power-over-Ethernet ports combine data and power transmission in the same set of wires.

When a device is connected to the POE125U-4-AT via a power-over-Ethernet port, the device will draw power from the PoE source, while also receiving data. Power transmission takes place according to the IEEE 802.3af- and IEEE 802.3at-compliant standards. These are standards that define a way of delivering electrical power to device using Ethernet cabling, while simulataneously allowing data transmission.

Conclusion

The POE125U-4-AT is a versatile midspan power source that can power up to four devices at once. It is ideal for use in networked devices such as VoIP phones, IP cameras, wireless access points, and more. The device works by supplying power over the same Ethernet cables used to transmit data, according to the IEEE 802.3af- and IEEE 802.3at-compliant standards. Understanding the applications and working principles of PoE devices, such as the POE125U-4-AT, is essential in ensuring efficient power distribution over a networked system.

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