2.1mm center-pin DC barrel jack to two-position screw terminal block adapter. Terminals are labeled for positive-tip (most common) configuration, allowing a wall adapter to connect to a board without a built-in DC jack.
Positive screw-terminal output from the 2.1 mm DC barrel jack, for positive-tip DC supplies. Source states the terminal block is labelled positive/negative assuming positive-tip configuration.
Negative screw-terminal output from the 2.1 mm DC barrel jack. Source states the terminal block is labelled positive/negative assuming positive-tip configuration.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| + | Power | Positive screw-terminal output from the 2.1 mm DC barrel jack, for positive-tip DC supplies. Source states the terminal block is labelled positive/negative assuming positive-tip configuration. | DC input voltage from the connected 2.1 mm positive-tip supply, not specified by Adafruit for this adapter |
| - | Ground | Negative screw-terminal output from the 2.1 mm DC barrel jack. Source states the terminal block is labelled positive/negative assuming positive-tip configuration. | 0 V / supply return from the connected DC supply |
Positive screw-terminal output from the 2.1 mm DC barrel jack, for positive-tip DC supplies. Source states the terminal block is labelled positive/negative assuming positive-tip configuration.
Negative screw-terminal output from the 2.1 mm DC barrel jack. Source states the terminal block is labelled positive/negative assuming positive-tip configuration.
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