GE Corometrics 126

Revision B 120 Series Maternal/Fetal Monitor 4-55
2015590-001
Theory of Operation: UA/FECG Board
Table 4-21. Front End Motherboard Connector J1
Pin Number Signal Name Signal Description
1 No Connection —
2 No Connection —
3 AGND Analog Ground
4 MECG1EN* MECG Mode Enable
5 EXCITREF +4 V Reference Ground
6 BRGEXCIT +4 V Reference
7 PRESS– Negative Input to Pressure Amplifier
8 STRAIN GAUGE* IUP Mode Enable
9 AGND Analog Ground
10 FRA Fetal Right Arm Input
11 No Connection —
12 B EN* Mode Input (Unused)
13 FECG ENABLE* FECG Mode Enable
14 MECG2 ENABLE* Model 116 MECG Mode Enable
15 AGND Analog Ground
16 PRESS+ Positive Input to Pressure Amplifier
17 TOCO* TOCO Mode Enable
18 SENSE Spare Analog Input
19 FLA Fetal Left Arm Input
20 FRL Fetal Right Leg Drive