Debounce – Applying trigger causes relay to activate for programmed time. Relay remains activated until timeout, regardless of trigger being removed. If input remains triggered after timeout, relay remains activated until trigger is removed.
Stand Off Timer – Ideal for DOTL alarms. Timing commences when trigger is applied. If trigger is removed before time out, relay will not activate. If trigger remains after time out, relay will activate.
Fail Secure – The relay does not change state during power failure.
Fail Safe – The relay is energised when the trigger is not active. Relay will de-energise, releasing power to the door locks during power failure.