3 ms·
No ground loops in Ethernet. The signalling wires are driven through transformers, isolating them from ground to improve noise immunity. Latency maybe, but the
by R0b0t1 5y ago
No ground loops in Ethernet. The signalling wires are driven through transformers, isolating them from ground to improve noise immunity.
Latency maybe, but the article doesn't talk about it, and this is typically solved the same way it is inside your computer when feeding the sound card: deliver too much info then wait. The real time delivery constraints that you can patch into the Ethernet stack on Linux are only necessary for reducing roundtrip time.
- odiroot 5y agoIf only USB did the same. Would be a big improvement to USB connected instruments and audio interfaces. A man can dream.
- cassianoleal 5y agoIndeed. I had to get a USB ground loop eliminator in order to run my Line6 Helix connected to the computer. Now with USB-C-only computers, it's Helix -> cable -> ground loop eliminator -> adapter -> computer. Without the need for it, I'd have just replaced the USB-A cable with a USB-C one and connect directly to the computer.
- walrus01 5y agotechnically you can ground-loop passive high powered PoE gigabit ethernet (like for 85W radios or big beefy heated pan/tilt/zoom cameras), but that's not the scenario here.
- Nextgrid 5y agoNot defending this BS by any means, but certain cables have metallic connectors which I believe are connected to the cable's shielding jacket, and if the ports on either side are metal they are probably connected (maybe unintentionally though physical contact with the chassis) to the device's ground, so wouldn't that create a conductive path for interference?
- R0b0t1 5y agoWhen made properly this is only supposed to be on one end. If it's on both you do get a loop, but the disruption to the signalling doesn't manifest as audio noise in the way the website seems to be speaking of.