4-86 120 Series Maternal/Fetal Monitor Revision B
2015590-001
Theory of Operation: Recorder Board
Table 4-35. Paper Tray Sensor Connector J8
Pin Number Signal Name Signal Description
1 No Connection Key
2 PLOAD Collector of Sensor
3 LED LED of Sensor
4 GND Ground
Table 4-36. Test Connector J9
Pin Number Signal Name Signal Description
1 VH Head Supply Voltage
2 HGND Head Supply Ground
3 POUT Paper Out Test Point
4 PLOW Paper Low Test Point
5 DGND Digital Ground
6 PLOAD Paper Tray Sensor Test Point