The FLIR assembly detects IR input, converting it into digital data for processing by the reformatter in the CEU 1A7. The FLIR assembly is contained within an independent package (deroll) that keeps the FLIR video upright regardless of aircraft roll maneuvers. It comprises five assemblies: detector/cooler A5, scan and interlace A2, signal conditioner multiplexer (SCM) A3, FLIR module A4, and scanner A1.