Magnus Ahltorp / is on Nostr

Computers. Filesystems. Networks. Linguistics. Japanese.

Last Notes

2024-06-23 19:11:10

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But then you need the PD communication pin to be shorter than (disconnect before) the power pins. Otherwise you will still be disconnecting a 5A current with a connector without that breaking characteristic.

2024-06-23 19:00:00

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But 48V is within 40-52V, so all phantom-expecting equipment should be fine, as long as they don’t expect to be cut off if they draw more than 20mA.
Connecting a bicycle to a mixing console might make it sad, but connecting a faulty cable or microphone that shorts must happen all the time even in normal contexts, so that’s something a console needs to handle anyway.
What I’m more concerned about is that you can’t get a “disconnect event” from the latch, like in PCI express.

2024-06-23 18:36:36

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The easiest way to deploy this is to just use the normal phantom power spec for XLR: always 48V, but then you don’t know how much power you can draw.
Normal 3-pin XLR handles up to 16A, so that’s not a problem, but unless everyone can provide 5A, the voltage will drop when you draw too much.

2024-06-23 16:51:48

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I needed a 48V delivery system about 10 years ago, and really tried to find 48V connectors. When I didn’t find any, I based the system on PowerCon, but they are specified for, and used in, 230V systems.
It’s a great connector, and I felt comfortable using them for 48V in a controlled setting, in areas where only specific people had access, but using them without any keying in public could be problematic. If people get used to plugging them in and then find a 230V one…

2024-06-11 14:44:24

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Nej, det tyder ju snarare på någon form av automatiskt beteende som är inlärt under en tid.

2024-05-15 12:45:48

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Note that I did not say “almost all public voices in Israel”. It’s more forbidden to be against Netanyahu in Germany than in Israel.

2024-05-15 12:41:25

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The Netanyahu government obviously sides with this, along with almost all public voices in Germany.

2024-05-15 12:36:21

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It’s a good reason to condemn *those* Israeli citizens’ *behaviour*.