MAX5987BETE+

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MAX5987BETE+ Application Field and Working Principle

Power over Ethernet (PoE) controllers are electronic components that enable the management of both power and data on Ethernet cabling. The MAX5987BETE+ is one such component, specifically developed to power devices connected to Ethernet networks. This article will discuss the various application fields, features and working principles of the MAX5987BETE+.The first application field of the MAX5987BETE+ is connector application types. With its dedicated signal filtering circuitry, the component is suited to support Ethernet connections in hubs, switches, endpoints and other Ethernet equipment. It also supports full 8-bit bi-directional parity with support for Binary Hourglass topologies.The second application field of the MAX5987BETE+ is for powering Ethernet-attached devices. It is particularly well suited to power VoIP phones and access points, low-powered Ethernet network cameras and drives, and thermal cash registers. It can accept input voltage of up to 36VBETE and output voltage of 12VBETE. It supports IEEE824vBETE, a standard that enables the supply of 125W or less of power in its output. This power can then be provided safely into the Ethernet link without compromising data rates.The third application field of the MAX5987BETE+ is the support of the Prestandard PoE topology. This feature allows the device to automatically detect and switch the supply power to either Type1 (signal pins) or Type2 (data pins). This prevents the accidental short circuit of both the signal and data pins.The fourth application field of the MAX5987BETE+ is its support for Trigger Ethernet port deployment. This feature allows devices to be attached to Ethernet cables instead of 40-pin connectors. This reduces the risk of EMI radiation that may occur when pin connectors are used to connect equipment.The final application field of the MAX5987BETE+ is its support for low-power networks. It supports low-power Ethernet technology such as PoE+, which cuts the power consumption of devices attached to the network. This ensures maximum energy efficiency without compromising data rates.The working principle of the MAX5987BETE+ is similar to that of other PoE controllers. Firstly, the component is connected between the Ethernet transceiver and the data stream. Then, the controller detects when a device is attached to the network and switches the supply of power through the respective pins. The second step is to then convert the power input into a safe output level that can be used to power the device. This is done without any disruption to the data that is being transmitted. Finally, the device extracts the power from the output of the controller, thus eliminating the need for additional power adapters.In conclusion, the MAX5987BETE+ is an electronic component specifically designed for Ethernet networks. It supports various application fields, such as connector application types, powering of Ethernet-attached devices, support for Prestandard PoE topology and its support for Trigger Ethernet port deployment. Its lower power consumption and safety features enable safer and more efficient operation of Ethernet networks. Its working principle involves the detection of just attaching devices, the conversion of power input into a safer output and the extraction of the power for use in the device.

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