Thermo Scientific 49i Instruction Manual page 171

Thermo Fisher Scientific
Table 6-3. Motherboard Connector Pin Descriptions, continued
Connector Reference
Label Designator
Pin Signal
Description
4 TTL Input 2
5 Ground
6 TTL Input 5
7 TTL Input 7
8 TTL Input 8
9 TTL Input 10
10 Ground
11 TTL Input 13
12 TTL Input 15
13 Ground
14 Analog Voltage Output 1
15 Analog Voltage Output 3
16 Ground
17 Analog Voltage Output 5
18 Ground
19 Ground
20 Power Fail Relay COM
21 Power Fail Relay N.O. Contact
22 Ground
23 TTL Input 3
24 TTL Input 4
25 TTL Input 6
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 Output 2
34 Analog Voltage Output 4
35 Ground
36 Analog Voltage Output 6
Model 49i Instruction Manual
Troubleshooting
Connector Pin Descriptions
6-9