---
title: "W7500-reference design for PoE"
url: "https://maker.wiznet.io/forum/13493"
markdown_url: "https://maker.wiznet.io/forum/13493/md"
type: "Forum topic"
category: "MCU & Boards"
author: "PIyer"
created: "2019-09-26T23:44:30+09:00"
last_activity: "2019-12-29T03:39:42+09:00"
language: "en"
views: 684
replies: 4
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W7500-reference design for PoE

## Question

Asked by PIyer on 2019-09-26 in MCU & Boards.

Hello

Is there a reference design for available for the W7500 with PoE?

thanks in advance

## Replies

### Reply 1 by scott, 2019-09-27

Dear Plyer

We don’t have a PoE reference.

PoE is not related to W7500. PoE is a separate function.

You have to design yourself.

Thank you.

### Reply 2 by PIyer, 2019-09-27

Thank you Scott

Every 7500 connected device normally would need some kind of power. It would have been great to have PoE as an add-on capability

### Reply 3 by scott, 2019-09-27 (in reply to reply 2)

Thank you for your good advice.

Scott

### Reply 4 by tuna, 2019-12-29

For readers of this thread: I agree - it would be great to have a compact and integrated IP/MAC/PHY & PoE solution. However, PoE is a rather involved subject, with thermal, safety, EMC and other concerns that require a non-trivial amount of expertise to appreciate and implement as part of a project or product - even with the hypothesized part. The standard is also asymmetric, in that PSE and PD are handled completely differently. For these reasons, it’s probably not practical to build such a chip. At best, it would probably be prohibitively expensive.

There are numerous players, but TI has some well-integrated solutions, good docs and useful Dev boards. Consider checking their materials out as a starting point.

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Source: https://maker.wiznet.io/forum/13493