
Appendix B: Data Port Protocol
Table 4: Analog Pinouts
Pin Parameter Parameter Range
6 %SpO2 0 - 100
13 Pulse rate 0 - 250
14 Pleth wave 0 - 255
For example, as the current value of %SpO2 varies from 0 to
100%, the voltage from pin 6 to ground (pin 10) would vary from
0 to 1 volt. A voltage of .94 volts indicates a current %SpO
2
value of 94.
Calibration of the analog output and the attached device can be
performed by qualified service personnel using the procedure
described in the NPB-290 service manual.
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