I have a Unifi Pro 24 PoE and a Unifi Pro Aggregation. I want to power a 2,5GbE PoE+ U6 Enterprise with data from the Unifi Pro Aggregation (with sfp+ module to ethernet) and power from the Unifi Pro 24 PoE.
I want this to make sure that in case I cannot reboot the AP, I can power cycle the port.
Is there a device that I can use with a PoE ethernet input (and no data) and a data ethernet input (with no power) and a combined 2,5GbE (10?) ethernet output port?
According to ChatGPT it is called a PoE splitter but those are hard to find with >1GbE connectivity.
Why not just run two lines? 1 has poe and 1 doesnt? I am asuming 1 woudl be poe in.
Hontesly your wording is a bit hard to understand with me having to look up each and every switch mentioned.
Did the U6 pro come with a power supply? If it did then I would just use that and then put the power supply on a remote control switch/outlet. I understand what you are trying to do but I think this would be the simpler option.
UniFi also sells POE injectors under the accessory section of their website.
Under the power section they also have network controlled PDU’s as well as WiFi controlled outlets that would be perfect for this use case.
Yeah having a pdu you can toggle power on ports is very nice
If you want to be extra fancy they make ones that monitor power usage too.
so…
A:Has the potential to send data and power, is a managed switch.
B:Is the data Source
C:is the remote switch.
You desire C to use A as the power source and B as the data source.
This can be done several ways.
- Don’t use A
add a stand alone power injector to B, ie
https://dl.ubnt.com/datasheets/poe/PoE_Adapters_DS.pdf
Maybe B is a fiber line, and can’t run power…
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private vlan
on switch A, add a VLan that does not leave the device. Now no data goes to or from A and C -
no A, injector instead
Disconnect A from the switch and just use a power injector on that rj45. Now no possibility to send data to or from A.
Check out the linked pdf data sheet. There are models on that page which will inject anywhere from 5 watts to 80 watts, all from ubnt, which looks to be your preferred vendor.
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You would need BOTH a PoE splitter AND a PoE injector. A compatible set in where the output of one will power the other… Or else include an electrical relay, where the PoE output switches the utility power going into the PoE injector on/off.
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Then you’d also need some dummy load connected on the PoE port coming out, otherwise your PoE switch will show it as “down” and may not send power out of it.
It seems all prior comments did not fully read or failed to understand your request. Even ChatGPT…
The UniFi one does that as well. I am going to buy one in the next month or so. They are a amazing value.
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I read his question just fine but the way he is going about it is not the best or most effective way of completing his goal.
A quick search says it is PoE powered only.
Remote control outlets are just about always Wi-Fi, and it is the Wi-Fi AP we are talking about power-cycling here.
Do you have a recommendation for an inexpensive remote control switch that connects via wired ethernet?
They come with poe power supply injectors.
You got me there. I’d still suggest the pdu unit but I understand that is a magnitude difference in cost.
Thanks for all the replies. English is not my native language so I tried to make it as clear as possible. Apparently that worked half 
A bit more background perhaps:
Unifi access points are PoE and data through a single connection only. (There are a few exceptions, which I will not discuss)
The U6 Entreprise has a 2,5GbE PoE+ port. At this moment there are switches from Unifi that can handle that (link) but since I already have enough switches as it is, I don’t want to spend another €900+ euros on a switch for 1 access point (for now).
I also am aware of the PDU and the smart power plug. Unfortunately at this moment there are no versions of these that feature a EU socket and only support 110v. We have 220v - 230v in the Netherlands.
Lastly, I do know how PoE injectors work. Which is why i’m looking for a device that:
- Supports an ethernet power input (PoE+) and passes that power on to the end device.
- Also supports a SFP+ or Ethernet 2,5GbE (or 10GbE) input
- Has a combined output of both; Ethernet 2,5GbE (or 10GbE) and PoE+
The main reason for this is so I can manage the power of an AP within the switch (remotely) in case of a non responsive unit or something else.
I have found a gigabit variant which somewhat does this with some hackery (perhaps?)
link
And a 2,5GbE one with a normal EU power plug
link
A combination with 2 ethernet ports as input or 1 ethernet and 1 sfp+ port I haven’t found yet.
I hope this clarifies my idea and use case.
Thanks again 
I think it’s extremely unlikely such a device exists. Yours is an exceptionally rare scenario.
That’s just a PoE injector with a bare terminals for power input. It’s not even PoE+.
You’ll need a PoE splitter AND some dummy 802.3at device to get the switch to negotiate the full PoE+ power output but not actually draw any power. Without that, you’ll only get low power output, and so need a relay and another power source.
There are many network switchable PDUs out there most of which will operate on 230V.
Seems like it would be a LOT cheaper and easier just to run your U6 Entreprise off of your 1G PoE+ switch, and upgrade to a 2.5G or 10G PoE+ switch later.
I know netgear has a few
22W max out
^19W pass through
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Power
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Included power adapter:
- Input: 100.0 – 240.0 VAC, 50 – 60 Hz, 2.0 A
- Output: DC, 54.5 V, 1.32 A
- PoE Budget: 65.0 watts (maximum)
- Power consumption: 72.0 watts (maximum)
- Via PD port (port 5)
- Input: IEEE802.3af/at/bt compliant
- PoE Budget: 65.0 watts (maximum) with IEEE802.3bt input; 25.0 watts with IEEE802.3at input; 10.0 watts with IEEE802.3af input
- Power consumption: 71.0 watts (maximum)
Not going to get 2.5g ones yet probably could do 2 1g links, but that doesnt really work with you needing 2.5g
Maybe run a 2nd cable? 1 splitter thats just for powering the device using a splitter and another to provide uplink at 2.5g?
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Thanks for all the replies. For now I’ll stick to 1GbE connections. This seems the most economical and for now the best option.
If somebody did want to build something like this, the splitter part is documented:
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