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Thermo Fisher Scientific
Connector
Reference
Label
Designator
AC IN
PJ1
AC 24VPWR
J1
AC INTF BD
PJ3
Table 6–4. Measurement Interface Board Connector Pin Descriptions
Connector
Reference
Label
Designator
DATA
IPJ8
PRES
MJ3
INPUT BD
MJ8
Pin
Signal Description
4
NC
5
Ground
6
NC
7
Serial Port 2 RTS (+RS485 OUT)
8
Serial Port 2 CTS (+RS485 IN)
9
NC
1
AC-HOT
2
AC-NEUT
3
AC-Ground
1
AC-HOT
2
AC-NEUT
3
AC-Ground
1
AC-HOT
2
AC-NEUT
3
AC-Ground
Pin
Signal Description
1
Ground
2
+RS485 from Motherboard
3
-RS485 from Motherboard
1
Pressure Sensor Input
2
Ground
3
+15V
4
-15V
1
+15V
2
Ground
3
-15V
4
+5V
5
Ground
6
Measurement Frequency Output
7
Amplifier Zero Adjust Voltage
Model 42i Trace Level Instruction Manual
Troubleshooting
Connector Pin Descriptions
6-13
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Troubleshooting
