PoE Out not working on L009

[LawrencePatterson]

Thanks for the power splitting tip! I’ll consider using a passive gigabit splitter.

And you just opened (surely unintentionally) a (small) can of worms.

The Gigabit splitter may (or may not) be mapped as Mode A or mode B or both modes.

The 48V power supply (or the injector) may be mapped as mode A or mode B or both modes if it is one of those that have an RJ45 as exit..

If we take a Mikrotik power supply like the:
https://mikrotik.com/product/48v2a96w
even if it is not mentioned anywhere, it comes with a normal DC jack.

You need with it an injector like:
https://mikrotik.com/product/RBGPOE
(which is mode B, which most if not all Mikrotik devices use, i.e. pins 4,5 +; pins7,8 -)

Then you need another same injector to act as a splitter and a (short) male/male DC jack cable see:
MikroTik RBGPOE - usable as PoE splitter?
to extract the power and feed it to your L009.

Otherwise you can get a pair of injector/splitters, making sure they are gigabit capable, as long as they are used in pairs it doesn’t matter if they are Mode A or Mode B or both.

The issues may rise if you use a power supply that directly outputs PoE on RJ45 in (say) mode A and the splitter is intended for mode B or viceversa or if you “mix” two different splitters/injectors..

JFYI, there are splitters/injectors that work on both modes (and in case can also use all pairs), example:
https://shopify.poe-world.com/products/gpoe-1-ab-y-single-port-gigabit-mode-a-b-passive-poe-injector-poe-plus-linker-for-802-3at-poe-low-cost-solution-for-4-pair-poe
having a couple of these when making PoE tests is handy..

Thank you so much for the info.