mirror of
https://github.com/sascha-hemi/pycom-documentation.git
synced 2026-03-21 15:06:31 +01:00
95 lines
3.1 KiB
Markdown
95 lines
3.1 KiB
Markdown
---
|
|
title: "PoE"
|
|
aliases:
|
|
- tutorials/all/PoE.html
|
|
- tutorials/all/PoE.md
|
|
- chapter/tutorials/all/PoE
|
|
---
|
|
|
|
|
|
|
|
The PyEthernet module offers an optional onboard Power over Ethernet (PoE) power supply circuit. This means that you can power your hardware with only an ethernet cable coming from a power injector or PoE enabled Ethernet switch. However, since the PoE is non-isolated, you must adhere to the following warning!
|
|
|
|
{{% hint style="danger" %}}
|
|
WARNING: Before you use the PoE adapter for the first time, please make sure you read and follow the below instructions as failure to do so might damanage your devices!
|
|
{{% /hint %}}
|
|
|
|
The PoE power supply integrated in the PyEthernet module with UPC code 604565285911 has no galvanic isolation. This means that in accordance with
|
|
IEEE 802.3-2005 standard, you must <b>NOT</b> connect any other devices / cables / chargers if the GND connection is connected to mains earth!
|
|
This is typically the case with PCs, Oscilloscopes, Logic Analysers, current consumption measurement devices etc.
|
|
|
|
Incorrect usages of Power over Ethernet can lead to unrecoverable damage of not only the PyEthernet module but all hardware connected to it.
|
|
|
|
A battery can be connected to the PyGate without issues. The battery can be charged either via USB-C or PoE power.
|
|
|
|
|
|
<h3>Setup Options</h3>
|
|
|
|
<h4> Power over Ethernet</h4>
|
|
|
|
|
|
<div class="poe-table">
|
|
<table class="poe">
|
|
<tbody>
|
|
<tr>
|
|
<td> USB-C cable connected to a PC <b>with</b> mains ground protection</td>
|
|
<td class="poe-red">NOT OK</td>
|
|
</tr>
|
|
<tr>
|
|
<td> USB-C cable connected to a Notebook <b>without</b> mains ground protection</td>
|
|
<td class="poe-green"> OK</td>
|
|
</tr>
|
|
<tr>
|
|
<td> USB-C charger <b>with</b> mains ground protection</td>
|
|
<td class="poe-red"> NOT OK</td>
|
|
</tr>
|
|
<tr>
|
|
<td> USB-C charger <b>without</b> mains ground protection</td>
|
|
<td class="poe-green"> OK</td>
|
|
</tr>
|
|
<tr>
|
|
<td> Oscilloscope / Logic Analyser / Other equipment <b>with</b> mains ground protection</td>
|
|
<td class="poe-red"> NOT OK</td>
|
|
</tr>
|
|
<tr>
|
|
<td> Battery</td>
|
|
<td class="poe-green"> OK</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
|
|
<br><br>
|
|
<h4> Power over USB-C or external supply</h4>
|
|
|
|
<div class="poe-table">
|
|
<table class="poe">
|
|
<tbody>
|
|
<tr>
|
|
<td> USB-C cable connected to a PC <b>with</b> mains ground protection</td>
|
|
<td class="poe-green">OK</td>
|
|
</tr>
|
|
<tr>
|
|
<td> USB-C cable connected to a Notebook <b>without</b> mains ground protection</td>
|
|
<td class="poe-green"> OK </td>
|
|
</tr>
|
|
<tr>
|
|
<td> USB-C charger <b>with</b> mains ground protection</td>
|
|
<td class="poe-green"> OK </td>
|
|
</tr>
|
|
<tr>
|
|
<td> USB-C charger <b>without</b> mains ground protection</td>
|
|
<td class="poe-green"> OK </td>
|
|
</tr>
|
|
<tr>
|
|
<td> Oscilloscope / Logic Analyser / Other equipment <b>with</b> mains ground protection</td>
|
|
<td class="poe-green"> OK </td>
|
|
</tr>
|
|
<tr>
|
|
<td> Battery</td>
|
|
<td class="poe-green"> OK </td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|