Not sure if I should post this here or over in Technology, but here goes.
So I need to run two Gigabit (or better) network cables from the main switch in the garage into another room.
The problem is that that room is a shelter (small bunker), which according to Swiss regulations means no holes in the walls, and the ‘door’ is an airtight 35cm thick slab of reinforced concrete and steel. So the only way into that room is a small conduit for electricity. There’s no way two Cat7 cables fit into that conduit, and power and data cables are not allowed to share the same space anyway. That means the only viable option is fiber - and, considering the conduit’s dimensions, only fiber without a connector will go through.
There are copper/POF adapters readily available (such as this one), and they would probably do the job. However, POF is effectively limited to ~1Gbit half-duplex. If I go through all the trouble of installing fiber, I don’t want it to be inferior to the existing Cat7 copper cabling. If there’s a multimode solution that doesn’t require me to buy two four-figure Cisco switches and five-figure tools, I’d much prefer that. Has anyone here heard of such a thing?
I think OPs issue is a combination of available space and regulations. Little space + no copper data connections next to power cables leave little choice but fibre.
I‘m kind of in the same boat, as I would like to connect the garage and an annex building. However, the garage needs power to, prepared for EV - so, large power cable as well. Same for the annex one, in which I just want to have bandwidth available :)
That’s the thing. If I add anything else the house won’t pass the periodic electrical inspections.
For an EV we’re probably talking 11 or 22kW, so a rather thick cable. But you’re probably going to have it installed by a certified electrician anyway, or can you do that yourself in Germany?
You can pull the wiring yourself, but an electrician needs to do the connections and insulation tests :)