Ethernet over XLR works :3

[aurora@toot.queer-lexikon.net]

@henry_null according to the manual those are intended for labeling

[piggo@piggo.space]

@wolf480pl @simon_m @rojun @aurora slightly related stupid idea is USB through ethernet cable. I can confirm it does not work well, of course I tried it. https://www.ondrovo.com/a/20220215-sdr-nooelec/

[jollysea@chaos.social]

@aurora is that a fidget cube on the left and if yes, is it mandatory for this setup?

(in all seriousness: wow, so cool!)

[jonas@social.jonaskoeritz.de]

@aurora are those off the shelf adapters that are usually used to do the exact opposite? (I know, CAT and Ethernet are not the same, but for the sake of this shitpost I guess it's fine to say so).

[filmroellchen@chaos.social]

@simon_m @wolf480pl @aurora also, if you use XLR cables for DMX, you’ll get even better results than with standard XLR for analog audio, since the XLR for digital purposes usually needs far better shielding and signal integrity as well.

[eragon@pl.eragon.re]

@aurora@queer-lexikon.net I mean... XLR is just coax cable. Ethernet is made to run on coax cables.
This is just Ethernet over four twisted pairs.

[simon_m@infosec.exchange]

@wolf480pl @rojun @aurora

no, USB does not do symmetrical signalling.

so probably

TP < coax < symmetric signalling < the "star quad" which until today didn't know exists

https://hachyderm.io/@MrDOS/116008383767747811

[heyimdaf@glauca.space]

@aurora …is this Dante

[rook@cubhub.social]

@aurora I'd like to put a tester on that, and hear how much it screams in pain. xD

[mirabilos@toot.mirbsd.org]

@simon_m @wolf480pl @aurora @rojun @MrDOS ooooh!

Also, one star quad would easily suffice for 100 Mbit/s.

[svavar@masto.svavar.com]

@eragon @aurora

XLR is designed to carry analog audio over long distances where electrical interface in the audible spectrum is an issue. They solve it by sending an inverted signal alongside the normal one* so in theory if you double the number of connections and use that technique you could run a cable hundreds of metres long.

* other techniques are available.

[karyxdragon@hydaelyn.coerthansnowstorm.online]

@aurora This has been a fairly common solution for running more modern lighting & sound protocols across legacy infrastructure cabling in entertainments venues for quite a while I think!

[wolf480pl@mstdn.io]

@simon_m
oh, because the super-speed pairs are either a twisted pair in the same shielding as all the other twisted pairs, or they are two individually shielded coaxes, and not a twinax?
@rojun @aurora

[fx@chaos.social]

@aurora Fun fact: The other way also works. You can send analog audio via XLR -> Cat5e -> XLR without issues (and without big audio loss).

[anthony@mastodon.themgineer.gay]

@aurora I love you’re using those adapters opposite of how they would likely be used in a broadcast or live event system.

[anthony@mastodon.themgineer.gay]

@karyxdragon @aurora it’s more for sending multiple signals (DMX, AES/EBU, analog audio, etc) over one cable rather than four. Since it’s just a passive adapter that takes the Cat cable’s twisted pairs and breaks it out to four 3-pin XLRs pins 1 and 2. It seems like the shield is shared across all four XLRs.

[jwo@mastodonczech.cz]

@aurora I hope that you heard about EtherCON. =)

Cool, btw.

[grant_h@mastodon.social]

@aurora @aedancullen that is deeply disturbing.
Has most probably happened at a gig somewhere!

[aurora@toot.queer-lexikon.net]

@fx that is indeed what those adapters are actually designed to do^^

[aurora@toot.queer-lexikon.net]

@jonas exactly yea