Revision B 120 Series Maternal/Fetal Monitor 4-69
2015590-001
Theory of Operation: MECG Board
Table 4-26. FECG/UA Board Connector P6
Pin Number Signal Name Signal Description
1 MECG1 MECG Analog
2 +15V +15 V Supply
3 –15V –15 V Supply
4 AGND Analog Ground
5 50/60HZ MECG 50/60 Hz Filter Control Bit
6 +15V +15 V Supply
7 –15V –15 V Supply
8 AGND Analog Ground
Table 4-27. MECG Patient Input Connector J7
Pin Number Signal Name Signal Description
1 MECG SHIELD Isolated Ground
2 MRL Maternal Right Leg Drive
3 MLA Maternal Left Arm Drive
4 MRA Maternal Right Arm Drive