A locator light assembly comprising at least a light-emitting transducer and a current limiting resistance is connected to an unused digital output of equipment disposed behind a surface comprising panels. The locator light is disposed in a panel of the surface such that, when illuminated, it is visible from the front side of the surface. The locator light is illuminated by writing a value to a digital output port of the equipment. Such writing may be a command from a Facilities Maintenance Program (FMP), and may occur via a network linking the equipment to a processor running the FMP. By immediately identifying the proper panel to remove for access to the equipment, by seeing the illuminated locator light, a technician may directly access the equipment.