Ventilator UI Theory of Operation
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Fresh Flow Sensor Board Interface, J1
1.6.1.7 Indicator Light Board
FIGURE 1-45 Indicator Light Board, Top View
PIN NAME FUNCTION
1 TXD_FLOW_BRD Fresh Flow Sensor Board Serial Port Transmit Signal
2 RXD_FLOW_BRD Fresh Flow Sensor Board Serial Port Receive Signal
3GND Ground
4 12V Fresh Flow Sensor Board 12V Power Supply