Full fit
DC barrel socket 5.5 x 2.1 mm
Mechanically full. Polarity is not implied by the connector and has to come from the device profiles.
DC barrel plug 5.5 x 2.1 mm
The usual wall-adapter plug. Centre positive is convention, not a guarantee.
Contacts
| Position | Name |
|---|---|
| 1 | centre |
| 2 | sleeve |
What it mates with
Mating is directional, so the two lists below are genuinely different: a TS plug in a TRS socket and a TRS plug in a TS socket short different things.
DC barrel plug 5.5 x 2.1 mm used as the plug
DC barrel plug 5.5 x 2.1 mm used as the receptacle
Nothing recorded with this connector as the receptacle.