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.
Q3ACPU - Mitsubishi
QnA Series High Performance Multifuction CPU, 2048 I/O Points , 92K Step Memory..
6ES7407-0KR00-0AA0 - Siemens
S7-400 PS407 10A REDUNDANT Power Supply REPLACED BY 6ES7407-0KR02-0AA0..


