A user simply activates the door from the "push to open" button and once in the rest room they simply press the “push to lock button”. Once the lock function is activated an LED lights externally and internally with a high luminance and glows red indicating the room is occupied or green highlighting the facility is vacant. To exit a user simply needs to press the button “push to open” and egress the room.

The PDS system provides unhindered automated access to amenities for people with disabilities and parents with babies or young children. The PDS can be fitted to either swing or sliding door operators depending on the required design application.
The system is completely barrier-free providing ease of open, close and secure, further the actuation back plates include braille to ensure ease of use for the visually impaired. With no exertion required to open or close the door AS1428.1 requirements are met. Also it meets the National Construction Code (NCC) - Access for people with a disability, NCC Braille and tactile signs and Australian Standard AS5007 power doors for pedestrian access and egress, truly makes this system barrier-free.