Unlike magnetic locks that need constant power to stay locked, most electric door strikes are fail-secure, meaning they remain locked until power is applied to unlock. This difference changes how your Request to Exit (REX) devices — like the RVN-REX and RVN-REX-T — should be wired.

Wiring with a 12V/24V Power Supply

Both models feature COM (Common), NO (Normally Open), and NC (Normally Closed) terminals. For direct-to-strike wiring, you’ll use COM and NO. When the button is pressed, the circuit closes, sending 12V power to the door strike and releasing the latch to allow exit. The RVN-REX-T adds a local adjustable timer, holding the circuit closed for 1 to 60 seconds, which is useful when a longer hold-open time is needed.

[Insert Image: Wiring diagram of RVN-REX-T connected to a 12V power supply and fail-secure door strike using COM and NO]

Wiring with a Controller Panel

When using an access control panel, the REX device is typically connected to the panel’s REX input, also using COM and NO. When pressed, the panel receives the signal and activates its door strike relay output, applying 12V to the strike. This method enables better logging, delay control, and integration with schedules or alarms.

[Insert Image: Diagram showing RVN-REX connected to panel REX input, with panel relay sending power to strike]

Whether you’re wiring directly or through a panel, make sure your strike is rated for the power being supplied and that your REX button is securely mounted near the door for clear, accessible egress.