The QSE-IO contact closure interface provides integration with third-party equipment requiring contact closure input / output, including occupancy and vacancy sensors; motorized projection screens, skylights, and window shades; AV equipment; security systems; movable partition walls; and time clocks. One QSE-IO interface provides five (5) dry contact closure outputs and five (5) inputs.FEATURES:• Integrates a QS control system with equipment that has contact-closure inputs and outputs.• Provides five inputs and five dry contact closure outputs.• Provides both normally open (NO) and normally closed (NC) contacts.• May be programmed to control or be controlled on a QS system.