This diagram shows a fixture with both emergency and normal segments being controlled via a single sensor, a single Control Unit, and a single UL924 device. Note that energy metering of the emergency segment at any time (normal or emergency operation) will not be available. The advantage is that there is only a single Sensor and CU required for all segments, and all segments are fully dimmable and can be turned ON/OFF during normal operation.
NOTE: The ESRLBCND is preferred over the ESRB. Please use ESRLBCND for all new designs.