kingkevin
/
board
1
0
Fork 0
Code Issues Pull Requests Projects Releases 37 Wiki Activity

doc: active PoE will not be supported

This commit is contained in:
King Kévin 2023-10-01 10:04:10 +02:00
parent 7f0779d856
commit bff420719c
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
README.md
View File

@ -47,9 +47,9 @@ features
Features already implemented:
- daisy chain capability (providing data and power)
- built-in power 5V power supply (input up to 36V, output up to 5A)
- built-in power 5V DC-DC converter (input up to 36V, output up to 5A)
- RS-485/DMX512 interface (not isolated)
- RJ45 port, providing power and data, 2x for chaining capability
- RJ45 port, providing power (PoE, passive, alternative B) and data (as used in DMX512), 2x for chaining capability
- RJ45 individual wires connector, using easy to use spring loaded terminal, for allowing using Ethernet cable in waterproof enclosure, where the 8P8C connector does not fit through the PG7 cable gland
- DC barrel jack power input, for 5V and 8-36V, for convenient use with power bricks, allowing injecting power
- power wire connectors, as alternative to the barrel jack, for larger power supplies and usage in waterproof enclosure
@ -73,6 +73,7 @@ Features will not be implemented:
- full isolation: not really needed as the devices should be chained with a single power supply, preventing any ground potential difference. The splitter board will provide isolation, at the beginning of the chain.
- USB Power Delivery: this is just a convenience feature, but using expensive lower power USB chargers is not ideal for the intended usage (festival installation)
- Lithium battery input and charger: it does not fit the intended usage, with large external power supplies providing enough power for power hungry LED strips. Small batteries would not be able to handle that over longer time. You can still use the 5V power input though, and charge the battery separately
- Power over Ethernet (active): I do use passive Power over Ethernet, by providing power on 2 pairs of the Ethernet cable that are not used for 10/100 Mbps communication. This allows using very simple and inexpensive injectors to power power, using and power supply. Active PoE require specials and more expensive injectors or power supplies, and complex extractors in each device. This is a to hard requirement. Feel free to use PoE though. There are plenty of relatively cheap injectors and extractors that you can use as external devices next to the boards.
background
==========