ABB AW400 Series - Page 10

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SECOND LAYER OF P.C. BOARDS (Analog Input/Output)
THIRD LAYER OF P.C. BOARDS (Main Board):
FOURTH LAYER OF P.C. BOARDS (Top):
Analog I/O pc board (channel cards) Channel 1
Channel 2 (optional)
Channel 3 (optional)
CPU pc board
Display and Keyboard
pc board