Thermo 48i - Page 181

Troubleshooting
Connector Pin Descriptions
Thermo Electron Corporation Model 48i Instruction Manual 6-19
26 Relay 7 Contact b
27 Relay 8 Contact b
28 Relay 9 Contact b
29 Relay 10 Contact b
30 +24V
31 +24V
32 +24V
33 +24V
34 +24V
35 +24V
36 +24V
37 +24V
Table 6-8. Pre-amp Board Connector Pin Descriptions
Connector
Label
Signal
Description
OUT Preamp Signal Output
SH Ground for Shield
BLK Ground
GRN SPI – Data Out
ORG SPI - CLK
VIO SPI - CS
BLU +15V
BRN +5V
RED +18V for IR Source
WHT -100V
BLK -100V Return
YEL +18V for IR Source
YEL IR Source Return
RED IR Detector Cooler +
BLK IR Detector Cooler -
WHT IR Detector
Table 6-7. Digital Output Board Connector Pin Descriptions, continued
Connector
Label
Reference
Designator
Pin Signal
Description