TRS
See Tip Ring Sleeve at Wikipedia
Excerpt:
Unbalanced | Balanced | Stereo | |
---|---|---|---|
Tip | Signal | Positive/"Hot" | Left channel |
Ring | Not present | Negative/"Cold" | Right channel |
Sleeve | Ground/Return | Ground | Ground |
References
- Cable Buying Guide - sweetwater.com
- a nice summary of common cables and a discussion of balanced and unbalanced cables.