RF Code manufactures infrared (IR) signaling units designed for use in real-time location service solutions.  When deployed in concert with IR-enabled tags  these products  -- the A740 Rack Locator, and the A750 Room Locator -- provide a method of locating tagged assets with room- or rack-level precision.  Each RTLS device transmits an infrared pulse pattern containing a unique 4-digit location code.  IR-enabled tags monitor their environment for incoming IR signals and periodically report both their own unique ID and the applicable IR location code.  Tag transmissions are processed in real-time to quickly locate and identify tagged assets, providing realt-time  room- or rack-level accuracy.  Coverage zones are limited by solid physical structures such as rack doors and walls, however IR transmits within line-of-sight, and signal bouncing effectively floods a coverage zone with the location code.