Troubleshooting
Connector Pin Descriptions
Thermo Fisher Scientific
Model 48
i
Instruction Manual
6-7
The connector pin descriptions in
Table 6–3
through
Table 6–8
can be
used along with the board-level connection diagrams to troubleshoot
board-level faults.
“
Motherboard Connector Pin Descriptions
” on page
6-7
“
Measurement Interface Board Connector Pin Descriptions
” on page
6-12
“
Front Panel Board Connector Pin Diagram
” on page
6-14
“
I/O Expansion Board (Optional) Connector Pin Descriptions
” on page
6-
16
“
Digital Output Board Connector Pin Descriptions
” on page
6-17
“
Pre-amp Board Connector Pin Descriptions
” on page
6-19
Table 6–3.
Motherboard Connector Pin Descriptions
Connector
Label
Reference
Designator
Pin
Signal Description
INTF DATA
J1
1
Ground
2
+RS485 to Interface Board
3
-RS485 to Interface Board
10-BASE-T J2
1 Ethernet
Output
(+)
2
Ethernet
Output
(-)
3
Ethernet Input (+)
4
NC
5
NC
6
Ethernet Input (-)
7
NC
8
NC
EXPANSION BD
J3
1
+5V
2
+24V
3
+24V
4
Ground
5
Ground
6
Ground
7
+RS485 to Expansion Board
8
-RS485 to Expansion Board
Connector Pin
Descriptions