Revision B 120 Series Maternal/Fetal Monitor 4-41
2015590-001
Theory of Operation: Communications Board
Table 4-18. Central Systems Interface Connector J102
Pin Number Signal Name
Signal type
(Relative to
Communications Board)
Signal Description
1 HR2MODE Output HR2 Analog Mode Line
2 UA Output UA Analog Out
3 AGND Output Analog Ground
4 No Connection — —
5 +15V Output +15 Volts (Low Current)
6 No Connection — —
7 HR1 Output Heart Rate One Analog Out
8 BAUD2OUT Output Ultrasound Audio CH1
9 BAUD1OUT Output Ultrasound Audio CH2
10 No Connection — —
11 No Connection — —
12 +5V Output +5 Volts (Low Current)
13 No Connection — —
14 FMD1 Output Fetal Movement Detection CH1
15 FMD2 Output Fetal Movement Detection CH2
16 No Connection — —
17 HR1MODE Output HR1 Analog Mode Line
18 CHK PAPER* Output Check Paper Out
19 No Connection — —
20 MARKOUT* Output Mark Out
21 No Connection — —
22 HR2 Output Heart Rate 2 Analog Out
23 No Connection — —
24 UA MODE Output UA Mode Line
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