UPS Supervision

The UPS unit must be supervised by the fire system.

To supervise the UPS unit, connect the UPS unit control board to an HTRI interface module mounted on the fire system unit that manages the UPS unit (HTRI-D model is best suited.) Use a normally-closed logic to program the HTRI interface module.

For pinout and wiring, see the following table UPS Control Board to HTRI Interface.