What, when building a house, are the necessary wires (beside 120v) to future proof my house, Cat6, Coax, low voltage, and alarm wires?

Basement lair:

Later, at work, I configured meeting rooms for videoconferencing. One thing I did was run conduit to the floor under the table, so we had 120V for laptops, plus ethernet, plus a landline jack for a speakerphone, plus wiring for tabletop microphones. That’s nice to have to avoid running cables across the floor. In my new house built in 2019, I have floor power under the dining room table (where I’m typing now) and near the sofa in the sitting room. I was thinking table lamp, but it’s only got used a few times to charge a phone while on a video call. I vaguely regret not getting an ethernet jack under the table.

The satellite receiver, DVD player, audio processor are in the console on the floor below the TV, with cable to the satellite antenna (via the wiring closet) and one cat6. The TV has 120V and cat6. It turns out that both the satellite receiver and audio processor want cat6, but really only for software updates. I’d have to add a switch if I wanted both at once.

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In one of the conference rooms at work we had a fibre outlet for fibre-to-desktop for high-bandwidth networking, but never used it. Copper cat6 later went up to 1Gbps or better, which is generally adequate, but if you think you might need 50Gbps or something, running fibre might be an idea. Terminating it is more complex than ethernet.

Back then we still had thickwire ethernet, and thinwire (co-ax), which were rings, and the emergence of ethernet hubs, which required star connections and Cat 4. Different ways or wiring things, requiring different routing. Now we have ethernet switches, so still a star connection - everything goes to a wiring closet on each floor, then a trunk connects switches on each floor to the main internet router. In a house as opposed to a business or apartment block, probably only one wiring closet for the entire house - mine is in the basement alongside the 120V breaker panel.

Most people have a doorbell or two, maybe a Ring. I don’t here - we forgot, and no-one much comes to the door anyway.

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Low voltage: What voltage, and why ? 12V DC ? 48V ?. 10 years ago I’d have suggested 12VDC with RV lead-acid batteries for emergency off-grid lighting. Now I’d suggest just using 120V AC LED lighting with an inverter. I have three circuits with a UPS inline; one for some lighting so I don’t need to go to bed in the dark, one for some wall outlets, and one for the TV and internet. I recently ran another conduit to a shed so I can power the UPS from a generator during a power outage). What I regret is not splitting out the fridge and freezer circuits so I can power them direct from the generator - they go to a breaker panel in the basement, which is impossible.

For the new house, I have spots for wall-mounted TV in most rooms, with 120V, cat6, and 75ohm for satellite TV. Only 3 are occupied, and only 1 has satellite. I have cat6 wall jacks in a couple of rooms, and somewhat regret not getting a couple more. I have cat6 with PoE to a couple of places on the ceiling for a WiFi hotspot, copied from my workplace.

In 1990, I suggested conduit for maximum flexibility. Then you can pull what cable you need later. Now, for maximum flexibility, I’d probably suggest drop ceilings above which you could add anything you wanted, with conduit drops to room outlets. That’s more typical of commercial premises. Some just have a high open ceiling and spray everything black.

Hi everybody! I have been looking at posts on narcs and narc abuse on here and if has really helped me out a lot. I am currently struggling with my situation and need some advice/support. I met a narc last year, everything seemed to good to be true. Love bombing, always texting calling and taking me on dates. Everything changed when someone warned me about him out in public in front of him and who he is. This caused a conflict with us and the love bombing seized. he would tell me that everything is okay and i can come and talk. He would set a time limit on me and kick me out after that. he would then text me like everything was fine and we hung out again and after that he completely ghosted me for one week. He came back and texted me a week later laughing about the ghosting and acting like nothing had happened. he continued to text me ( not like in the beginning) make plans with me, then on the day of the plans he would just ghost me. One day he would act interested the next silence. i contacted him a month later and he acted like nothing happened. He was on a vacation and sent me a picture of another woman ( someone he allegedly met on the trip) to strike a reaction but i never gave him one. After the trip he came to my place and was extremely rude, accusing me of going on dates with a bunch of men. The next day he accused me of being an alcoholic and that he wanted nothing to do with me but said well maybe we can be "friends" then ghosted me i assumed at this point it was over and i would never hear from him again. He contacted me on the holiday a month later acting like everything was great. We ended up hanging out a month or so later and when we hung out it went well, i thought things were going in the right direction. after we hung out.. silence. I would try to text him and if he replied it would be very short then he just stopped replying. He ghosted me for almost three months. I thought he was done this time and of course he popped up again like nothing happened. At this point i was getting sick of if so i questioned him as to why he dissapeared and always does this. Of course he had some sob story about a injury and family member dying of cancer. I felt pity for him and he gave me an apology.. so i took him back stupidly. things seemed to be going smooth for a couple months, of course until his family member died and his injury got better he never contacted me and was distant. Menawhile, i was there for him during the difficult time for him. He lied to me about the funeral and never wanted to chat. I was chasing him and he would always claim nothing was wrong but when i said i thought he used me when he was down he could not handle it and would always tell me he didnt care and to go away. I would get so upset i would try texting him to work it out he would barelt respond and if he did he would not be nice about it. we did hang out a couple times after that, he would ignore me after. One day i was like hey i think you are seeing someone else, and i was like well ixam seeing someone so no problem if you are he said " buy bye good luck with your new guy stop contacting me" i was devastated and tried to get into contact with him for weeks then i just gave up and accepted it was over. He ended up contacting me a month later acting like everything was fine. He wanted to go out and have drinks i told him i would. He and i both seemed to have a great time. He ends up ignoring me again. I kept texting him trying to figure out what was wrong. He kept saying everything was fine and i said ok can we hang out again? He said maybe i was like why? He just kept saying maybe … our last conversation we had… i said what is wrong ? He said nothing is wrong everything is fine. I asked him why he keeps saying maybe. He said " maybe but i dont want to see you right now" i said why? He saix " im just not feeling it, if i wanted to date i would" i said why did you contact me less then a week ago wanting to go out? He said i didnt.. even though he did. So i said should i just move on or what? He said whatever you want to do. So i said that he was really confusing me and asked him if he had anything more to say before i move on? My messages were turning green so i panicked he blocked me and reacted irrationally. I said " omg did you block me? My messages are not going through. Even texted him on my work phone asking what was up. And called him twice ( please dont judge me i know it is pathetic i never was this type of girl before him) so he replied and said " Ok I'll block you now" then immedietly blocked me. He has never blocked me before since I have met him he will just ghost. Is this ths final discard aka " grand finale? Did i just push him too far? this has upset me so much its hard to even function.

I wired the sitting room for home theatre, with 7.1 speakers. That worked out fairly well with everything mostly hidden.

The ribbed conduit was a mistake - smooth conduit with sweeps would be better. It was hard to pull pre-made HDMI cables.

When I built my last house in 1985, we were still on dialup. The phone company ran landlines in a star configuration to most of the rooms, and I later split one off for a separate fax line. I ran twisted pair for outside door and window sensors, but made a rookie mistake and didn’t allow enough slack. When the house settled a couple of the wires broke, but I could still use the working ones. The alarm system also had a phone jack for a dialler. It wasn’t a great success and I gave up using it. In principle it could remind me if there was a window open somewhere. I really wanted to put a sensor in the lock so it could tell if the doors were locked, but the pre-hung door didn’t really allow that. Might be worth consulting a professional - in a real burglary later a guy came through the front door, where the sensor was broken anyway, and never touched a window. Modern systems seem to use battery-powered wireless motion sensors rather than a lot of wired switches.

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UPS circuits with external batteries

I also ran 75ohm co-ax and twisted-pair in daisy-chains without any specific idea in mind, apart from “networking”. It turned out that thinwire required 50ohm, but 75ohm was good for analog TV. We had cable TV, who wanted to charge extra for extra outlets. So I had just one outlet on a shelf going to the VCR, and used my 75ohm to feed the TV and other rooms with cable splitters. Which I hardly used. The twisted-pair I later used for a battery-powered intercom to my kids rooms, so I could tell them supper was ready. Later with a cable modem and cat5 ethernet, I drilled down from the attic and fished cable through the walls to my kids rooms (no, they didn’t spend all their time online watching porn or playing games).

I have cat6 with PoE for external IP security cameras. Only two positions are occupied, and they’re really for a virtual “window” in my basement lair so I can see outside.

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I answered this question around 1990, on Usenet. So here we are over 40 years later, with much the same question.