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Power over Ethernet
Power over EthernetPower over Ethernet (PoE) is a widely adopted technology used to transfer both data and electrical power over an RJ-45 cable. PoE safely powers devices of up to 13 W (IEEE 802.3af), and a new standardization process for powering devices of up to 60 W (IEEE 802.3at), PoE+, is in progress. The design of power supply sections of all powered devices can be greatly simplified with the new PM8800, which integrates a standard power over Ethernet (PoE) interface and a current-mode PWM controller. The PoE interface incorporates all the functions required by the IEEE 802.3af, including detection, classification, undervoltage lockout (UVLO) and in-rush current limitation.

Main benefits

Worldwide standards: Ethernet is widespread and has been adopted all over the world
Lower installation cost: no external wall adapter required
Easy deployment: Ethernet appliances no longer need to be close to the power source
Remote management capability: PoE powered devices can be powered up or down remotely
Improved reliability: UPS can be used to ensure service during black-out

Main applications

WLAN access points
Metering
VoIP phones
WiMAX
Security Cameras
RFID readers
 
Power Over Ethernet Families
Powered Devices
Related families
Ethernet devices
 
Related Information
PM8800: Integrated solution for standard and high power PoE powered devices
 

Related Topics
Product Selector and Datasheets
Power Over Ethernet
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