Greetings to Everyone.
So I purchased the RB5009UPr+S+IN which supports PoE out and I’m trying to connect Ubiquity NanoG GPON which is my WAN (PPPoE). It supports Passive PoE-In - 24V Passive PoE (Pins 4, 5+; 7, 
and I also have a TP-Link Access Point that is also Passive PoE, but it’s not able to deliver power to the devices.
I’m using the power brick that came with it.
Could someone please advice
provided power supply of RB5009UPr+S+IN works with 48 volt
AFAIK Ubiquity NanoG GPON works with 24 volts, i dont think you can power it without changing power supply on RB5009UPr+S+IN for a 24volt power supply, maybe with tplink AP is the same situation
I have a UbiquityPoE 24V Passive PoE Injector the one that came with the NanoG, will this help if I try and Inject it from port 01 and force the PoE out on the assigned port the NanoG is connected to?
if you use a separate poe injector you must disable PoE Out on RB5009
you must feed injector with 24 volt, one important fact is RB5009, does not make Voltaje conversion nor the Injector
Actually, I would like to use one PoE Injector powering the RB5009 and the NanoG, Would this be possible?
yes but we return to the key fact of the power supply used, power injector have an Ampere Rating
RB5009 to itself requires 15 watt, that in 24volts is 0.625 amperes
Ubiquity NanoG GPON Gigabit PoE injector supports 24 V, only 0,3 A so is insuficient to feed the RB5009 alone, now fedding RB5009 + NanoG it is even less recommended
Okey Understood, thanks for clearing it out. So i might as well power it seperately