Powering RUTX50 via Passive POE

Im interested in powering my RUTX50 via POE
I see in the manual that it states that Positive on pins 45 and neg on pins 78 is supported and i have found matching specs on the Ubiquiti 24v Passive injectors
I just wanted to make sure that i can use the following adapters as i dont want to fry the unit

Ubiquiti POE-24-24W-G
was also interested on whether it was possible to use the Ubiquiti INS-3AF-I-G which is a POE AF/AT to 24V passive converter

The Spec sheets on both these models are
https://dl.ubnt.com/datasheets/poe/PoE_Adapters_DS.pdf (page 5)
https://dl.ubnt.com/datasheets/instant/Instant_802.3af_Gigabit_PoE_Converters_DS.pdf (page 3)


edit: also i realise that its only supported on Port 1

Hi there,

I am an owner of the RUTX50 as well, with a PoE setup. Can confirm that the Ubiquiti POE-24-24W-G works perfectly as it’s the injector I’m using as well. It supplies 24V at 1A for a total of 24W delivered. There’s also a 48V variant (POE-48-24W-G) at 0.5A for 24W delivered.

The RUTX50 is rated for 15-50VDC, so I picked the 24V variant as I considered that it’s placed more optimally in the accepted range (48V could be problematic if there’s a voltage surge for whatever reason).

Make sure to use Port 1 only for PoE.

You can use this Wiki page for the powering options:

Also, one thing the Wiki is a bit misleading about is Gigabit support, as in the power table it shows this: 10/100 mode B, DC on spares, but I can confirm Gigabit works perfectly with PoE. Just make sure you buy the -G variant of the Ubiquiti injector which is Gigabit rated.

It’s also worth noting that the native power supply the RUTX50 is shipped with is rated at 12V at 1.5A for 18W of power delivered. A good rule of thumb is to match the specs of the PoE as close to the specs of the native power supply.

Hope this helps!

Thanks for the quick response :slight_smile: