Glass break acoustic detectors use a 4-wire connection for power, ground, and relay output to signal when glass breakage frequencies are detected within their coverage area for perimeter security.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | VCC | Supply voltage | PWR |
| 2 | GND | Ground | GND |
| 3 | NO | Normally open output | I/O |
| 4 | COM | Relay common | I/O |
Glass break acoustic detectors use a 4-wire connection for power, ground, and relay output to signal when glass breakage frequencies are detected within their coverage area for perimeter security.