POE viability questions

[Meddling-Monk]

Hi all, want to get a quick sanity check from people who actually know and have experience.

I potentially have an option to get a cable out to the front door right now that does not involve needing to drill anything other than the inside of where I live. This would permit me to POE power anything outside I may want.

However, I will only be able to get one line out there and likely will be pre-made and terminated beforehand I will check it to make sure it works first.

My question is this:

If using POE over the line, am I limited by the amount of "connections" that I can use between power and the final device? As in:

POE Switch/Injector --> Solid Core Hardline --> Wall Mounted Box with RJ45 socket (Near front door) --> Pre-made and terminated Exterior Grade Cat5e/6 RJ45 either end routed through overhead (or possible channel) of door --> Outside Junction Box --> Whatever needs POE power

Will that work? Even though there are sections that connect to sections?

And if it's a doorbell and the ethernet cable is outside, I should VLAN the entire thing as well, yes?

Sorry for the amatuer questions, as not got experience in this section of networking. Any help appreciated.

 

[Semple]

Assuming connections to faceplates/couplers are fine then yeah I can't see you having any issues in a domestic environment.

I don't know why you'd go to the effort of terminating at an inside box, to connect to an outside box where you terminate again? A PoE doorbell will need connecting with an RJ45 connector, so I would just hardwire the other end of it to the inside box with a coupler. - simply put the fewer amount of connections the less likely something will work.

As for the VLAN question - there's plenty of reasons why you might want to have this device in a VLAN, but that's something you need to decide on what you're trying to accomplish by doing it that way.

 

[Meddling-Monk]

Assuming connections to faceplates/couplers are fine then yeah I can't see you having any issues in a domestic environment.

Thanks for confirming.

I don't know why you'd go to the effort of terminating at an inside box, to connect to an outside box where you terminate again? A PoE doorbell will need connecting with an RJ45 connector, so I would just hardwire the other end of it to the inside box with a coupler. - simply put the fewer amount of connections the less likely something will work.

Lets just say, this is the only workaround given the scenario I've found myself in sadly:

1. Aiming to use one of the newer Ring Doorbells (needed for Siri automation, Siri because need it in Cantonese, no other AI supports Cantonese as well as Siri).
2. New Door is being fitted as requested by landlord (Council, and has been delayed a fair while already), they won't allow modifications to their frame to pass any cabling out and there is no obvious way to get any cabling out through a different direction that won't run a mile outside before it gets to my door.
3. The installers are total bellends and have been awkward and lying about a whole bunch of stuff including what they will and will not do and that there are building regulations that my Community Fibre CSP (White Box connecting external Fibre and Internal Fibre together) is too close to the door and that I need to get it moved (near as I can tell from many searches, there is no such building regulation) and if anything gets damaged like wiring, not their responsibility - but they will "try their best" to leave any wiring in place if there is wiring there already. They even tried to tell me it didn't cost £250 to get the CSP moved, even after I told them I had an email quote from CF for costs to do so (at that time, before it got reduced to a flat fee of £75 now to move). Basically they just wanted to do the job and any "difficulties" for them is my problem and my cost to make it easier for them to do their job.
4. The key thing is they will try to accomodate any wiring going out. The thing is, if there's a pre-terminated cable I can test once they attempt to put in then if they damaged it beyond repair can then just "cut it out" there and then.
5. The Junction Box outside is to accomodate the POE to USB-C adapater Ring uses for their POE wired Doorbells (or any other POE devices in future).

As for the VLAN question - there's plenty of reasons why you might want to have this device in a VLAN, but that's something you need to decide on what you're trying to accomplish by doing it that way.

Largely for security since there will be an access point outside then by the external RJ45 cable.