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Using ethernet cables labelled SIRO and Eir in the attic

  • 25-05-2025 09:34PM
    #1
    Registered Users, Registered Users 2 Posts: 1,477 ✭✭✭


    I puchased a new build house and there are some uncrimped ethernet cables up in the attic. There are various cables for different rooms and there are labelled ethernet cables for SIRO and Eir up there too. How do they work? I had SIRO installed a few days ago and as far as I know they just did a standard install and didn't do anything special. Is it somehow connected to the ethernet in the attic through pre-existing wiring? As far as I know they didn't do anything special when installing the SIRO.

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Comments

  • Registered Users, Registered Users 2 Posts: 16,085 ✭✭✭✭The Cush


    Where is the SIRO ONT located?

    Are there any ethernet cables nearby the ONT?



  • Registered Users, Registered Users 2 Posts: 1,477 ✭✭✭daveyjoe


    ONT is downstairs in the office. There are two Ethernet points in the office but I think they are not them because there are two corresponding Ethernet cables in the attic for each of these ports. The Eir and SIRO Ethernet cables are separate.



  • Registered Users, Registered Users 2 Posts: 16,085 ✭✭✭✭The Cush


    Another location around the house so, someplace where an ONT would be expected to be installed, hallway/cabinet/utility etc



  • Registered Users, Registered Users 2 Posts: 455 ✭✭PixelCrafter


    Siro and OpenEir just install a fibre to an ONT which usually has a 10Gbit/s ethernet socket on it. Your ISP provides you with a router / access gateway that connects to that. Any of the other wiring is something your builder installed. It's nothing to do with Siro or OpenEir.

    Sounds like the house is wired for ethernet to various rooms - you would have to provide your own router/switch to make us of that or else just connect to the ethernet ports on the ISP router, which are probably quite limited i.e. usually 3 or 4.



  • Registered Users, Registered Users 2 Posts: 1,477 ✭✭✭daveyjoe


    Thanks, any idea how to find it? I tried asking the builder but the lady that we have contact with doesn’t have a clue and won’t put me in contact with anyone else (like the person who did the wiring).


    Presumably the idea is that I would connect the ONT to this Ethernet cable and then I could put the router in the attic. This actually appeals to me as I want to wire it up with Ubiquiti gear in the attic anyway and this seems like a clean solution.



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  • Registered Users, Registered Users 2 Posts: 1,182 ✭✭✭dam099


    I’ve heard of builders putting Ethernet to the external boxes on the side of the house. Fairly useless as providers won’t install an ONT there but id check there.



  • Registered Users, Registered Users 2 Posts: 2,885 ✭✭✭Glaceon


    They did that in my new build, there's two Cat 6 cables going to the utility boxes outside. If I were feeling more gutsy, I'd try to move the ONT out there because I really don't like where they put it.



  • Registered Users, Registered Users 2 Posts: 192 ✭✭user060916


    That's what we have. Installed refused outright to install it there. In the end got him to install it then immediately ripped it out and installed it outside in the box.

    One of my neighbors has it installed inside, and other neighbors just ask the installer to take a photo of that to satisfy the requirements



  • Registered Users, Registered Users 2 Posts: 1,477 ✭✭✭daveyjoe


    Any chance of a photo of the outside ONT? I’m struggling to visualise exactly where it would go. I guess you just removed the siro bracket and filled in where they ripped the plasterboard while installing inside the house? Or did you leave an empty bracket there?

    Post edited by daveyjoe on


  • Registered Users, Registered Users 2 Posts: 17,484 ✭✭✭✭Blazer


    I'd be very very hesitant to put anything in the attic like network gear. Unless you're attic is cooled and can maintain a constant temp, between the dust and extreme temps in the summer it would just fry your devices over a period of time.

    I thought of doing it myself and having everything nicely laid out up there but the general advice is don't.

    I'm gonna take everything to a patch panel in my utility room as I want to run ethernet in all the bedrooms and office.



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  • Registered Users, Registered Users 2 Posts: 16,085 ✭✭✭✭The Cush


    Sometimes there's no better place to put it.

    I have a mobile repeater, satellite multiswitch and boost amplifier in there without issues for a couple of years. The NBI router will be going in there later this year when we get installed.



  • Registered Users, Registered Users 2 Posts: 1,477 ✭✭✭daveyjoe


    Yeah,

    Fair enough, maybe I'll keep the router in the office so and just put a switch up there. Presumably a PoE switch would be fine in the attic even if it got a little warm?

    Anybody have a picture of an ONT installed outside? Curious to see the set up.



  • Registered Users, Registered Users 2 Posts: 4,409 ✭✭✭KeRbDoG


    Attics and devices - most devices will show their operating tempature and humidity ranges in their spec/manuals, example for a Ubiquiti POE switch;

    Ambient Operating Temperature -15 to 40° C (5 to 104° F)
    Ambient Operating Humidity 10 to 90% noncondensing
    

    Outside of that, yup it might reduce its lifespan. Lower spec'd devices might have a wider operation temp range



  • Registered Users, Registered Users 2 Posts: 614 ✭✭✭theintern


    I was worried about this, but this hasn't been an issue. I've been running routers, switches, and a couple of servers in an attic for 4 years now, and from what I can tell, it hasn't caused any issues.

    When we had a really hot summer there a few years ago (30 degrees plus), the hard drives in one of my servers started getting too hot so I added more cooling to the server and it's been fine.

    24 port switch, router, PoE switch, mini PC and NAS have all been chugging away happily.



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