Timeline for What changes needed to be made to the Apple Desktop Bus to make it hot-swappable?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 15, 2022 at 9:38 | comment | added | Whit3rd | The four pin connector had a grounded metal shroud, so it DID mate the ground first, then other (power, data) pins. | |
| Jan 13, 2022 at 21:21 | comment | added | Raffzahn | @Justme Well spoken, except all the advantages are only given if implemented - not exactly standard when talking micro computers of the 8 bit age. | |
| Jan 13, 2022 at 21:07 | comment | added | Justme | I think it would be quite safe to say that RS-232 is much more hot-swappable than ADB. RS-232 is by design a robust external communication interface between two equipment, as it supports connecting powered and unpowered equipment together, has current limiting on outputs, tolerates overvoltages on inputs, tolerates short circuits and carries no supply power between devices. That's quite different from ADB, which basically just wires power supplies and a GPIO pin of a CMOS microcontroller rather directly to a connector, thus exposing the sensitive GPIO pin to dangers of the external world. | |
| Jan 12, 2022 at 23:11 | comment | added | Raffzahn | @AlexHajnal No, AFAIK all versions sued the same simple 4 pin connector. It carries no preventive measures like power first or ground first. It was as swapable as an RS232. | |
| Jan 12, 2022 at 23:09 | history | edited | Raffzahn | CC BY-SA 4.0 | added 489 characters in body |
| Jan 12, 2022 at 13:50 | comment | added | Alex Hajnal | Are you aware of any electrical differences? e.g. make-first, break-last for ground? | |
| Jan 12, 2022 at 12:19 | history | answered | Raffzahn | CC BY-SA 4.0 |