Legrand CSU Series 32 kHz - Manual (Page 2)

UNIT DESCRIPTION
The Pass & Seymour ultrasonic occupancy sensors operate on 24VDC and automatically turn
lighting systems on and off based on occupancy. The sensors use Doppler technology to sense
occupancy. They broadcast high frequency sound waves into the controlled area. Movement in the
area will cause the sound waves to return to the sensor at a faster or slower rate resulting in a
doppler shift and occupancy detection. When the ultrasonic sensor detects occupancy, it switches
lighting on through a Pass & Seymour Power or Slave Pack.
COVERAGE PATTERNS
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