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How to Get Started with Power-over-Ethernet (PoE)

Power over Ethernet, or PoE, is a technology that allows power to be delivered through network cables to a parent device via power sourcing equipment. It has many advantages over traditional power delivery methods. It allows power and data to be combined, reducing cabling. It can be installed by non-electricians as there is no need to alter the AC mains infrastructure. It is an intelligent system with protections to prevent over-current, under-powering and installation errors. It is simple, scalable and reliable.


In this video you will learn about a Power-over-Ethernet (PoE) system that uses the MAX5969B powered device (PD) controller and the MAX5971B power sourcing equipment (PSE).

Time to watch - 4m 29s

Quick facts about Maxim PoE Products

  • IEEE® 802.3af/at-compliant products for power-sourcing equipment (PSE) and powered devices (PDs) provide an end-to-end PoE solution.
  • Meet IEEE standards, ensuring interoperability.
  • PSE products are rated for 80V (absolute maximum rating).
  • PD products are rated for 100V to ensure robustness.
  • PSE and PD solutions that provide up to 70W are available.

PoE- Reference Design examples

Related Maxim Integrated part numbers - MAX5969B, MAX5971B

Maxim Integrated develops innovative analog ICs for the automotive, industrial, healthcare, mobile consumer, and cloud data center markets
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