GE Corometrics 126

4-6 120 Series Maternal/Fetal Monitor Revision B
2015590-001
Theory of Operation: Main Motherboard
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Table 4-2. RS-232 Connectors J11 and J13
Pin Number Signal Name Signal Description
1 RTS Request to Send Output from Monitor
2 RXD Receive Data Input to Monitor
3 GND Signal Ground
4 GND Frame Ground
5 TXD Transmit Data Output from Monitor
6 CTS Clear to Send Input to Monitor
Table 4-3. RS-232 Connector J12
Pin Number Signal Name Signal Description
1 RTS Always Inactive
2 RXD Receive Data Input to Monitor
3 GND Signal Ground
4 GND Frame Ground
5 TXD Transmit Data Output from Monitor
6 No connection —