Troubleshooting
Connector Pin Descriptions
Thermo Fisher Scientific
Model 48
i
Instruction Manual
6-11
Connector
Label
Reference
Designator
Pin
Signal Description
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
RS232/RS485:A P1:A
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
RS232/RS485:B P1:B
1
NC
2
Serial Port 2 RX (-RS485 IN)
3
Serial Port 2 TX (-RS485 OUT)
4
NC
5
Ground
6
NC
7
Serial Port 2 RTS (+RS485 OUT)
8
Serial Port 2 CTS (+RS485 IN)
9
NC
AC IN
PJ1
1
AC-HOT
2
AC-NEUT
3
AC-Ground
AC 24VPWR
PJ2
1
AC-HOT
2
AC-NEUT
3
AC-Ground