To connect to Vista 20P's 8 hardwired zones, you must first figure out if your device is open or closed circuit.
For open circuit devices: Connect along the zone loop, in parallel. If the zone has an end-of-line-resistor, find the device at the end of the loop and connect the resistor across those wires.
For closed circuit devices: Connect on high side of zone loop, in series. If the zone has an end-of-the-line resistor, find the device at the end of the loop and connect the resistor in series.
Terminals 3 and 4 are used to connect alarm sirens. Wire device power is supplied by terminals 4 and 5. Once connected to the correct control panel terminal, these devices must be assigned device addresses before achieving proper functionality. For more on device addressing, click here.
Similar Products: