Novametrix Medical Systems 515 Service Manual page 54

Connecting External Equipment:Analog Output Module
Service Manual: Model 5'
spond to heart rate, % Sa02 and plethysmogram waveform outputs. In additic
to the analog waveforms an RS232 output line is also available from a sep
rate 25 pin D-connector.
Analog Output Module Pinout
Pin
Description
OutDut Voltase
1
Heart Rate: 0 - 250 beats/min
0 - 2.5 volts
2,3
Ground (isolated)
4,5
%Sa02: 0 - 100%
0 - 1 volt
6,7 Not used
8,9
Plethysmogram waveform
0 - 2.5 volts
The Analog Output Module plugs directly onto the 25 pin D-connector h
cated on the rear panel of the Model 515. It receives power and all of the si;
nals from this connection. The analog output levels are derived from
dedicated serial line which is found on pin 19 (TXI2) of the rear panel conne
tor. The second RS232 line is hardwired from the monitor's rear panel conne
tor to the Analog Output Module's 25 pin D-connector.
The output levels of the analog outputs can be set to 0, 1/2, or full scale 1
using one of the monitor's internally programmed special functions. With tl
monitor off, simultaneously press the third softkey from the left and the POV