4 ms·
Hear me out. The original USB only had 4 pins. I always thought a round ringed TRS style plug like headphones use would have been great. No way to orient it inc
by donatj 3y ago
Hear me out. The original USB only had 4 pins. I always thought a round ringed TRS style plug like headphones use would have been great. No way to orient it incorrectly.
- oniony 3y agoI think the problem these connectors have is that each ring has to slide over the other contacts to get to its correct location. USB Type-A has longer contacts for pins 1 and 4, the power pins, so they contact first and remain contacted before the data pins make contact. You can see that in this picture https://www.electroschematics.com/usb-how-things-work/ https://www.electroschematics.com/usb-how-things-work/.
- tommiegannert 3y agoMany of the TRS connectors have a built-in switch to (originally) disconnect the internal speaker. It would probably have been easy to extend that concept to isolate all contacts until the tip hits the bottom.
- crote 3y agoThat's not going to save you when you try to plug in the device-side connector with the computer-side already connected (and therefore already applying power to the cable).
- tommiegannert 3y agoWhy? It's also disconnected at the device's socket until fully seated?
- metaphor 3y ago> I always thought a round ringed TRS style plug like headphones use would have been great. No way to orient it incorrectly. Now consider the forward-looking bandwidth implications with that class of physical interconnect.
- adolph 3y agoThe iPod shuffle did this to decrease the connector size and count.
- perilunar 3y agoYES. TRRS would have been great. Or mini-TOSLINK