I needed to power some cameras using Power over Ethernet but they only supported 12V input, so I ordered some PoE extractors from ali. Here they are for your information.
Black one
White waterproof one
Conclusion
They both only support 100Mbps over 2 pairs. The wateproofing was quite annoying to remove but not impossible. It seems they both can be modified to support different input/output voltage. As you can see in the pictures, they are both using H6225K step-down regulator in a very similar design.
The circuit mostly corresponds to following schematic found on the internet:
Thank you for your attention.
Good Day danman,
Nice work. I also have some of these POE Splitters (The Black one). I seem to have two versions. 3.12 and 5.11. Mostly the same with some resistors values changed.
My question is where do i get the Datasheet? I can’t seem to find one.
Thank you in advance
David
I don’t know, I don’t have it.