5-16 170 Series Monitor Revision C
2000947-004
Theory of Operation: Functional Overview
* Active low.
Table 5-17. FECG/UA Option Interface Part Two (J15), Models 173/174 Only
Pin Number Signal Name
Signal Type
(Relative To Main
Board)
Signal Description
1 RA Output Right Arm Input from Patient Connector
2 LA Output Left Arm Input from Patient Connector
3 RL Input Right Leg Drive Signal from FECG/IUP Board
4 SHIELDF Output Isolated Shield
5 –PRESS Output UA Channel Negative Input
6 +PRESS Output UA Channel Positive Input
7 ISO4V Input Isolated 4 V Reference
8 ECGEN* Output Enable for FECG Cable
9 4VISOGND Input Isolated 4 V Reference Ground
10 PEN* Output Isolated IUP Enable
11 NC — No Connection
12 ENTOCO* Output Isolated TOCO Enable