Thermo Scientific 42i Instruction Manual page 172

Troubleshooting
Connector Pin Descriptions
6-10 Model 42i Instruction Manual
Connector Reference
Label Designator
SER EN J7
24V IN J10
DIGITAL I/O J14
EXT. RS485 J15
Pin Signal Description
26 Ground
27 TTL Input 9
28 TTL Input 11
29 TTL Input 12
30 TTL Input 14
31 TTL Input 16
32 Ground
33 Analog Voltage 2
34 Analog Voltage 4
35 Ground
36 Analog Voltage 6
37 Ground
1 Serial Enable Jumper
2 +3.3V
1 +24V
2 Ground
1 +5V
2 +24V
3 +24V
4 Ground
5 Ground
6 Ground
7 SPI Reset
8 SPI Input
9 SPI Output
10 SPI Board Select
11 SPI Clock
1 -RS485 to Rear Panel
2 -RS485 to Rear Panel
3 +5V
4 +5V
5 +5V
6 Ground
7 Ground
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