Thermo Scientific 42i Instruction Manual page 166

Troubleshooting
Connector Pin Descriptions
6-12 Model 42i Trace Level Instruction Manual
Connector Reference
Label Designator
RS232/RS485:A P1:A
RS232/RS485:B P1:B
Pin Signal Description
13 LD2 – LCD Signal
14 LD7 – LCD Signal
15 LD3 – LCD Signal
16 LCD Bias Voltagel
17 +5V
18 Ground
19 Ground
20 LCD_ONOFF – LCD Signal
21 Keypad Row 2 Input
22 Keypad Row 1 Input
23 Keypad Row 4 Input
24 Keypad Row 3 Input
25 Keypad Col 2 Select
26 Keypad Col 1 Select
27 Keypad Col 4 Select
28 Keypad Col 3 Select
29 Ground
30 Ground
31 Ground
32 Ground
33 +24V
34 +24V
1 NC
2 Serial Port 1 RX (-RS485 IN)
3 Serial Port 1 TX (-RS485 OUT)
4 NC
5 Ground
6 NC
7 Serial Port 1 RTS (+RS485 OUT)
8 Serial Port 1 CTS (+RS485 IN)
9 NC
1 NC
2 Serial Port 2 RX (-RS485 IN)
3 Serial Port 2 TX (-RS485 OUT)
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