3 ms·
Here is a snip from the midi specification > The MIDI circuit is a 5mA current loop; logical 0 is current ON.... To avoid ground loops, and subsequent data err
by jalk 3y ago
Here is a snip from the midi specification
> The MIDI circuit is a 5mA current loop; logical 0 is current ON.... To avoid ground loops, and subsequent data errors, the transmitter circuitry and receiver
circuitry are internally separated by an opto-isolator
Ground loops is not something the audiophools have cooked up. Ethernet devices are also isolated from each other, although it uses 1:1 transformers (Ethernet Magnetics) instead of optocouplers.
The optocoupler also works like a cheap (although somewhat hard to replace) fuse which is probably a good thing if you want to connect you Roland Jupiter-8 / Fairlight CMI to some dodgy equipment.
- zdw 3y ago> Ethernet devices are also isolated from each other, although it uses 1:1 transformers (Ethernet Magnetics) instead of optocouplers. Unless you're using fiber as your medium, but that's an optocoupler by definition...
- grawlinson 3y ago> The optocoupler also works like a cheap (although somewhat hard to replace) fuse which is probably a good thing if you want to connect you Roland Jupiter-8 / Fairlight CMI to some dodgy equipment. In this case, the older synths are more likely to have failing/dodgy components. I have a DX-7 that I'm going to have to replace a lot of components in, and this sort of knowledge/understanding really should be more common along synth enthusiasts.
- datpiff 3y ago> Roland Jupiter-8 / Fairlight CMI Funnily enough neither supported MIDI. The CMI Series IIx got it as an upgrade, the Jupiter-8 only supports it with 3rd party modifications.