Rack or Chassis
A chassis is the physical frame or structure of an automobile, an airplane, a desktop computer, or other multi-component device.
A Rack is the framework, typically with rails, bars, hooks, or pegs, for holding or storing things.
DX502-DP - ABB
Bus mod.Profibus DP KBA 12MB/s,8DI/8DO,24VDC,DI:24VDC DO:24VDC/0,5A,1/3-wire..
CP1W-DA041 - Omron
CP1 Expansion analogue output unit, 4x 1 to 5V, 0 to 5V, 0 to 10V, -10 to 10V, 0 to 20mA, 4 to 20mA,..