But I don’t want to pull out the power supply and cable of the ONT (it is in an awkward location. Can anyone tell me that the voltage is of the ONT power supply and what tip is used?
My ONT looks like the calix one:
I’ve got a couple of those, I had them included in the router package I got from Giganet before I swapped over to Yayzi. Thing is, they didn’t do their homework before sending them to customers - they only supply 12v and the router they sent them with required 19v… And this is the problem, a lot of routers now seem to be 19v with proprietry power supplies. Yes, you could in theory use it with your ONT if its’s 12v, but in the case of a power cut what point is that if your router isn’t on backup power too?
I’m using them as backup supplies for a couple of Raspberry PI projects instead, perfect for that. Or take them apart and reuse the 18650 batteries inside elsewhere…
If they work with the ONT, I’m good. My router (UDM Pro) is in another room and is connected to a UPS there.
Plus, I’ve got a home battery that can supply the whole house. But it takes up to a minute for it to switch the supply for the whole house to island mode. Hence I just need a small UPS for the ONT so the internet stays up (Unless of course we have a failure like the one in Spain)