A7™ Service Manual 046-006272-00 1 - 43
Theory of Operation Anesthesia System Components
Power Supply Interface, J3
1.4.2.2 Flow Meter Lighting Board
FIGURE 1-49 Flow Meter Lighting Board, Top View
FIGURE 1-50 Flow Meter Lighting Board, Bottom View
Flow Meter Lighting Board Interface, J1
PIN NAME FUNCTION
1 HIGH_BRIGHTNESS High Brightness Grade
2 HIGH_BRIGHTNESS High Brightness Grade
3OFF Close Light Grade
4OFF Close Light Grade
5 LOW_BRIGHTNESS Low Brightness Grade
6 LOW_BRIGHTNESS Low Brightness Grade
PIN NAME FUNCTION
1 12V 12V Power Supply of the Top Lighting Board
2GND Ground
3 12V_AUX The 12V Power Supply of the Flow Meter Lighting Board
PIN NAME FUNCTION
1 12V 12V Power Supply of the Flow Meter Lighting board
2GND Ground
3GND Ground
4LIGHT_IN Flow Meter Lighting Control Signal
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