Electromagnetic door locks (maglocks) use a 2-wire connection for 12V or 24V DC power that magnetizes the armature plate to hold doors closed, with optional magnetic door contact and REX (Request to Exit) sensor.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | VCC | 12V or 24V DC power | PWR |
| 2 | GND | Ground | GND |
| 3 | COM | Door contact common | I/O |
| 4 | NO | Door contact normally open | I/O |