SSDC’s DPS series sensors employ electromechanical ball switches to provide a cost-effective means of monitoring door position status (DPS). DPS monitors the current position of the door, open or closed. DPS switches change state when the door is opened or closed. Installed in the edge of the door frame, DPS switches are wired into remote devices, typically alarm panels or door controllers, to notify facility management of a change in state - aiding in an access control system’s integrity.

To ensure an access control system’s integrity, DPS switches should be used in conjuction with a locking device and a form of lock status monitoring dependent on the application - lock status, bond alert status (BAS), etc.