GE Corometrics 126

Revision B 120 Series Maternal/Fetal Monitor 4-57
2015590-001
Theory of Operation: UA/FECG Board
31 AGND Analog Ground
32 AGND Analog Ground
33 No Connection —
34 FECG FECG Analog
35 FECG 80 DB FECG 80 dB Analog
36 No Connection —
37 No Connection —
38 FECGRAW FECG Raw Analog (Unused)
39 No Connection —
40 AGND2 Analog Ground
41 No Connection —
42 No Connection —
43 No Connection —
44 No Connection —
45 No Connection —
46 No Connection —
47 No Connection —
48 –15VISOL –15 V Isolated Supply
49 ISOGND Isolated Ground
50 +15VISOL +15 V Isolated Supply
51 +5V +5 V Supply
52 BD0 Status/Control Data Bus Bit 0
53 BD1 Status/Control Data Bus Bit 1
54 BD2 Status/Control Data Bus Bit 2
55 BD3 Status/Control Data Bus Bit 3
56 BD4 Status/Control Data Bus Bit 4
57 BD5 Status/Control Data Bus Bit 5
58 +5V +5 V Supply
59 BWR* Status/Control Bus Write Line
60 BA0 Status/Control Bus Address Line Bit 0
61 No Connection —
Table 4-22. Front End Motherboard Connector J3 (Continued)
Pin Number Signal Name Signal Description