Just be careful because the TP Link PoE splitters just create a potential difference of whatever voltage you have selected, but they still reference one of those voltages to the PoE voltage itself.

https://blog.zencoffee.org/2015/11/tp-link-tl-poe10r...

It's fine if you're not connecting to anything else that is grounded.

Thanks. I'll check the ground potential difference with a multimeter. For powering the ONT it won't present an issue though.

In reply to a post by kjwkjw:

In reply to a post by trolleybus:

In reply to a post by APTMAN:

The internal box or ONT that will be fitted must be have a twin power socket within 1M to power the ONT and router.

Consistently I read that the ONT can be powered through the ethernet cable. Is this a myth or quite true?

It can be done if you so wish, you just need something to split the POE back to a jack plug. I do it this way for instance.

I wanted all my infrastructure to stay up in the event of a power cut. The main switch is on a UPS so all of my AP's, CCTV, and router stay up for ~1hr)

https://pasteboard.co/K6Zc3Gh.jpg

Interesting but noting that the LOS indicator is on. A schematic of your wiring setup and the hardware used would be helpful to understand how it all goes together.

In my case with FTTP coming soon, I am thinking of installing a small backing board to fix the hardware to so as to make future decorating less of a hassle in this area.

The picture was taken before a problem was resolved at the exchange end

All been working fine for a few weeks now.

In a nutshell my ONT is connected back to the main POE switch and put into a VLAN, I then pass that VLAN back out of another port to my router WAN port (pfSense in this case)

The beauty of doing it this way is I can present my WAN port to any of the structured cabling ports in the house with just a config change at the switch (the patch panel and main switch are in the loft!)

Edited by kjwkjw (Thu 17-Jun-21 10:49:56)

Good shout on using the VLAN and PoE LAN switch port. Nice and elegant.

I was wondering whether you had done it that way or just put an injector on the side of the router WAN port (much less elegant).

Edited by Pheasant (Thu 17-Jun-21 11:25:59)

It works really well, was doing the same with my 2 x FTTC lines previously.

2 x DrayTek modems powered via the TPLink units up to the switch and then sending the 2 WAN links over 1 trunk port to pfSense.

Back to the subject. !
Can you see any manholes with BT marked on them nearby ?.

From the picture it looks like a new-ish build, not only that it looks like the level of the front garden has been raised up (looking at the gas meter box)

I wonder if the duct is now hidden below the decorative stones?

Best bet is to let the OR guy deal with where it is when he arrives, they will no doubt have a network map and will be able to roughly work it out from that! What does the checker say for your property? It usually mentions duct etc.

Edited by kjwkjw (Fri 18-Jun-21 07:27:04)

I've just looked at the OP's picture of the "unknown purpose" cable. Whatever it is, it looks to me like a DIY job.

I agree, would think the plumber/gas fitted did it.