Air Force Tech. Sgt. Jose Piedra, standing, 373rd Training Squadron Detachment 4 production supervisor and instructor, discusses the importance of the 1553B databus backbone cable for the C-130J to his students Feb. 23, 2017 at the Center of Excellence on Little Rock Air Force Base, Ark. The cable transfers critical information between the computer systems throughout the aircraft and the Airmen are responsible for the understanding how they work. ( Air Force photo by Staff Sgt. Jeremy McGuffin)

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