5-10 170 Series Monitor Revision C
2000947-004
Theory of Operation: Functional Overview
* Active low.
Figure 5-7. US/FECG Combi-Connector (facing the front panel from the outside)
Table 5-11. Ultrasound/FECG Combi-Connector (Model 174)
Pin # Signal Name Signal Description
1 NC No Connection
2 FECGEN* Enable for FECG Channel
3 ISOGND Isolated Ground
4 XMIT/RCV SHIELD Shield for Transmit/Receive (isolated ground)
5 XMIT/RCV Transmit/Receive (isolated ground)
6 LA Left Arm
7 RA Right Arm
8 SHIELD Shield (isolated ground)
9 NC No Connection
10 NC No Connection
11 U/S ENABLE* Enable for Ultrasound Channel
12 RL Right Leg
23
4
56
879
101112
1
2
3
4
5
6
12
9
8
10
11
1
7
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