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Troubleshooting
Connector Pin Descriptions
Thermo Fisher Scientific
Model 15
i
Instruction Manual
6-13
Connector
Label
Reference
Designator
Pin
Signal Description
OPT
J6
1
Optical Pickup Input
2
Ground
3
Optical Pickup Source Drive
PREAMP BD
J7
1
Preamp Signal Input
2
Ground for Shield
3
Ground
4
SPI – Data Out
5
SPI - CLK
6
SPI - CS
7
+15V
8
+5V
9
+18V for IR Source
10
Ground
11
-100V
12
-100V
Return
MOT DRV
J8
1
Motor Drive Voltage 1
2
Motor Drive Voltage 2
3
Motor Drive Voltage 3
4
Motor Drive Voltage 4
PRES
J9
1
Chamber Pressure Sensor Input
2
Ground
3
+15V
4
-15V
FLOW
J10
1
Sample Flow Sensor Input
2
Ground
3 +15V
4
-15V
5
Ground
FLOW SW
J11
1
NC
2
Ground
3
Purge Flow Input
O2 SENS
J12
1
NC
2
NC
3
NC