If you had this set up what would you use ?

TonyR said:
On the injector the grey is likely plugged into "LAN" and the blue into "POE" and that "POE" powers the device at the other end of that blue cable and also brings back its data and pipes it into "LAN" via the grey.

As wittaj said, if nothing on the end of that blue then you're just wasting some power and money.
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yeah I'll have to try and figure out where it's going. I'll check the in/out regarding the LAN as you suggest. Certainly a mystery to me.
 
flyoverfred said:
Hi Wittaj,
I posted a picture of my switch on page 3 and was told it was just a network switch and not POE but I've just noticed that injector - so it doesn't make any sense to me. There are no cameras plugged into it yet, just ethernet cables that run through the house
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I am late to the party for previous posts... POE power injectors are used for variety of POE devices. Yes, for IP cameras...but also wireless access points, IP telephones, any network device that requires DC that is not plugged into an AC outlet. Do you have Elon Musk's "Starlink" or satellite dish? They could also be POE needing a POE injector.
 
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Holbs said:
I am late to the party for previous posts... POE power injectors are used for variety of POE devices. Yes, for IP cameras...but also wireless access points, IP telephones, any network device that requires DC that is not plugged into an AC outlet. Do you have Elon Musk's "Starlink" or satellite dish? They could also be POE needing a POE injector.
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I've just figured it out - it's going to some sort of internet signal booster mounted on the ceiling (maybe that's the WAP you are talking about) - it's a 3 floor building . You nailed it again !
 
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