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Cake day: June 14th, 2023

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  • I’m very glad that nothing important depends on my opinion on this and I can freely theoretize and rant, but I doubt Putin would use nukes so easily. At his core he’s still a coward, and he has to know that the ‘West’ couldn’t afford to not react to Russia nuking a European country.

    Having said that, even if the threat of Russia using nukes were very real, it shouldn’t weaken our resolve to support Ukraine and put a stop to Russia’s aggression. Because no matter the circumstances, people like Putin cannot be allowed to have any way of forcing the world to stand back and let them commit crimes at will.
    Throughout history, appeasement has never worked in anybody’s favour except the aggressor’s. If it turns out that a nuclear retaliatory strike in response to a Russian nuclear attack on another country really is what it takes to stop Putin, then so be it. It can’t be worse in the long term than letting him just take whatever he wants. In that case I just wish we could get this over with already.





  • In case anybody stumbles across this thread and has a similar problem: I’ve successfully installed two fiber connections this week and they’re working very well so far. I’m very happy!

    My hardware shopping list:

    • Lightwin single-mode (OS2) simplex fiber with preattached LC plugs (link)
    • Lightwin LC/APC female/female adapter
    • Ubiquiti 10Gbit SFP+ modules (sold as a pair, product code UACC-OM-SM-10G-S-2)
    • Two Zyxel XMG-105HP switches with five 2.5Gbit, PoE++ RJ45 ports and one 10Gbit SFP+ port

    The Lightwin cables have relatively short plugs with small and narrow protector caps, which is very important in my case.

    The 2.5Gbit switch is fine for me because everything else in the house is 1Gbit and I didn’t want to spend three times the amount for two 10Gbit switches just yet. Though the OS2 fiber should be able to handle anything we might throw at it in the foreseeable future.

    Pulling the cables with the attached connectors through the narrow pipe was a bit tricky. I used a standard pull-in string and strong, inflexible adhesive tape to attach the fiber cables to it so that there would be a distance of 2-3cm between the string and the first plug, with a thick wad of tape inbetween, and the second plug following at a similar distance. Then I applied a generous amount of lube to the pipe and slowly pulled the cables through. They just so went around the corners, but once the plugs came out at the other end it was smooth sailing.

    The internet fiber plugs directly into the OTO socket on one side, and connects to the modem via an LC f/f adapter on the other side. The LAN fiber has a switch at each end.




  • Little space + no copper data connections next to power cables leave little choice but fibre.

    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?


  • Hmm, Lemmy or Jerboa appears to have eaten my lengthy reply, so here we go again:

    My aim is to have my router/firewall, mail server and VM host in the shelter, as it’s the most protected room in the house. That means I need at least two lines - one from the modem to the router/firewall, and one connecting everything to the internal LAN.

    The internet connection is rated 400Mbit synchronous with the option of upgrading to up to 25Gbit, though at present I can’t imagine us ever needing that much and it’s probably more of a marketing gimmick anyway, so that line isn’t as critical, throughput-wise.

    The rest of the house is currently a copper Gigabit affair, though the cabling is Cat7 and capable of more, so I wouldn’t want the fiber to be the bottleneck when we upgrade to 10Gbit a few years down the road. Hence multimode looks like a good idea. The question is whether (and how) there’s a way to cut, install and connect it myself. POF would be easier but comes with a number of question marks concerning 10GbE.






  • Why do you say this? What gives you the idea that they will face some form of workload pressure because of this?

    Oh, I’d be very surprised if any actual personal responsibility found its way to them. But they’re gonna have to look super busy and worried for the press for a while, find somebody else to pin the blame on, call friends in government to ‘expedite’ any investigations and reassure their shareholders. That’s gonna cost them a lot of time they could have spent on nicer things such as working on their handicap, doing coke in the coutry club’s bathroom or firing a couple of hundred workers.

    Other than that I totally agree with you.



  • As I said, it depends. There are inverters made specifically to be connected to PV panels, and there are inverters made for a fixed input voltage that you connect to a battery (the DIY store kind are usually the latter).

    Though if you want to build a self-contained PV system without having to think about it too much, you’re probably best off with an all-in-one device where you can just plug in your panels, your battery and your devices and let it worry about the rest.

    There’s another aspect, and I sadly lack the technical vocabulary here, but basically what you want to do for optimum efficiency is to convert the voltage as few times as possible. So: panels–>inverter–>load resp. panels–>charger–>battery, but not panels–>charger–>inverter–>load. The latter decreases your general efficiency and introduces roughly twice the losses.
    The charger may also reduce its power output to much less than what the panels could deliver once it thinks the battery is full.

    But then again, it all depends on your use case: where you use the system, what the environmental conditions are, and of course what your budget is. There simply is no one-size-fits-all PV system. You may not even need an inverter if all you want to do is charge your phone and laptop.


  • It depends on the hardware you have, as the charger and inverter can interfere with each other in a number of ways.

    For an RV with a couple lead-acid batteries, separate devices all connected to the battery usually work fine.

    For more sophisticated set-ups (at least around here) all-in-one devices incorporating both charger and inverter are preferred. You also get load managenent this way.

    If you have a separate inverter and charger that are designed to talk to each other and have good MPPT, you connect them both to the PV panels so the inverter doesn’t sabotage the charger’s ability to measure the battery’s state of charge or charge it optimally. This is ‘preferable’ for lead batteries and critical for lithium batteries.


  • I can’t imagine the other choice could be worse

    It probably depends on what you want to achieve. At the moment it’s probably to avoid hyperinflation, another national bankruptcy and poverty levels climbing to new all-time highs. Massa (the other guy) is known for trying to counter the effects of the current massive inflation by printing more money for government subsidies (let that sink in for a moment), so one could argue that whatever Milei actually does, it can’t be worse than that.

    His (to put it mildly) over-the-top rhetoric, homophobia/misogyny and the suggestions to sell your organs to make ends meet etc. are different beasts altogether, but I can’t blame the voters for ranking having food on the table higher than strengthening LGBTQ+ rights. I’m grateful I don’t have to make that choice in my own country.