POE Passthrough 12 V Extractors

[TheWaterbug]

About a year ago @PeteJ pointed me towards this product that has POE in, POE out, and 12 V out, for powering stuff like an IR illuminator in parallel with a POE camera, off of a single POE cable run:



I haven't had a chance to try one out yet, but I did gripe about the $30 price last year, and this morning I stumbled upon this $18.49 competitor:



I've ordered one of each so I can compare. I could use at least 5-6 of these in my home setup. But I do wish there were a waterproof version.

Any other options out there? Note that I don't need another simple 12 V extractor; I need a product that does POE passthrough, so the downstream RJ45 carries full POE.

I, and others, had been hacking up cameras to bypass the protection diode on their 12 V barrel jacks, to extract 12 V from the camera with a gender changer, but that works only when you know where that diode is, and obviously it voids the warranty, and you run the risk of breaking your camera.

 

[OD1]

They’re basically free on the direct from China sites. Great for LEDs.

 

[TheWaterbug]

They’re basically free on the direct from
China sites.

Link, please? And these are POE passthrough, not just 12 V extractors?

 

[OD1]

Link, please? And these are POE passthrough, not just 12 V extractors?

Oops I didn’t see the passthrough requirement, that could raise the price because rarity but not BOM. You can just split the barrel and run camera on 12v. “Poe splitter” on AliExpress.

Edit: ok would need to reinject so these will always cost more. Your camera still has a barrel though.

 

[TheWaterbug]

But I do wish there were a waterproof version.

e.g. I'd want the functionality of the two products I linked in my OP, but with this type of form factor, but also with a gland on the plug side:

 

[TheWaterbug]

Oops I didn’t see the passthrough requirement, that could raise the price because rarity but not BOM. You can just split the barrel and run camera on 12v. “Poe splitter” on AliExpress.

Yeah, I did the 12V split thing the first time I wanted this functionality, but it ends up being a contraption, with many possible points of failure.

The diode bypass is mechanically the most elegant, but not always possible.

 

[TonyR]

I haven't had a chance to try one out yet, but I did gripe about the $30 price last year, and this morning I stumbled upon this $18.49 competitor:

View attachment 247638

For an extra $5 a pop more you could put that one in a waterproof box with mounting ears and cable glands (or similar):

 

[TheWaterbug]

For an extra $5 a pop more you could put that one in a waterproof box with mounting ears and cable glands (or similar):

View attachment 247649

I might go with something like this:


since it's a bit easier to open and service. Every time I think I've closed up a box, and will never need to go into it again, I find one more reason to open it up.

I've got a bunch of fixes to do in two locations, and I want to enclose both a POE-powered-POE-switch as well as at least one of these POE passthrough extractors, so I gotta figure out the right size box. And then it'll be too small and then I'll have to rip it all out and do it again.