# PoE powered-device interface

Canonical URL: https://eloragrid.ai/symbols/poe-powered-device-interface
Publisher: Elora Grid
Updated: 2026-10-27
Lookup label: PoE PD
Drawing use: Schematic
Reference families: Manufacturer

A PoE powered-device interface manages the receiving end of power delivered over a compatible Ethernet link.

## In plain English

### What does PoE powered-device interface mean?

A PoE powered-device interface manages the receiving end of power delivered over a compatible Ethernet link.

### A simple example

A network-connected device can receive its operating power through the PoE connection.

### What the drawings help you do

Place the powered-device interface at the receiving end of the Ethernet power connection. Distinguish the incoming cable power, the recognition and classification functions, and the downstream supply conversion. The Ethernet data path and the power path need separate labels even when they share the same cable.

### Before using this reference

- Identify the powered-device and sourcing-equipment ends.
- Reference the selected power class and input arrangement.
- Show downstream conversion and the separate data path.

### Is the powered device the end that supplies power?

No. A powered device receives power; the power-sourcing equipment provides it. Their interfaces perform different jobs and must be selected for a compatible complete link.

### Terms

- PD: Powered device, the receiving end of a PoE power connection.
- Classification: The selected interface process used to establish power-related requirements.

Concept diagram: Power from Ethernet cable → Powered-device interface → Downstream device supply
Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.

- [Power over Ethernet interfaces](https://www.ti.com/product-category/power-management/power-over-ethernet-ics/overview.html)


## What it represents

A PoE powered-device interface manages the receiving end of power delivered over a compatible Ethernet link.
A network-connected device can receive its operating power through the PoE connection.
Place the powered-device interface at the receiving end of the Ethernet power connection. Distinguish the incoming cable power, the recognition and classification functions, and the downstream supply conversion. The Ethernet data path and the power path need separate labels even when they share the same cable. This is original functional artwork, not a certified standard graphic or device pinout.

## How to read it

- Identify the powered-device and sourcing-equipment ends.
- Reference the selected power class and input arrangement.
- Show downstream conversion and the separate data path.
- The powered-device interface receives power; the sourcing equipment supplies it.

## Information to show or reference

- Identify the powered-device and sourcing-equipment ends.
- Reference the selected power class and input arrangement.
- Show downstream conversion and the separate data path.

## Important distinction

The powered-device interface receives power; the sourcing equipment supplies it.

## Facts

- Representation type: Original functional block; not a certified IEC or IEEE graphic
- Concept input: Power from Ethernet cable
- Concept output: Downstream device supply

## Public references

- [Power over Ethernet interfaces](https://www.ti.com/product-category/power-management/power-over-ethernet-ics/overview.html) — Texas Instruments. Power over Ethernet interfaces: public technical context for the named function. Product and compliance details remain with the publisher.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.