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Theory of Operation
Connector Definitions
Connector Definitions
Main Power Supply Connector
The main power supply is connected to the spectrophotometer processor
main (SPM) board by a cable that is fixed to the main power supply.
Fan Connector
The fan is connected to the spectrophotometer processor main (SPM) board.
Table 14 Power Supply Cable to SPM Board
Pin Function Pin Function
1 Power failure 7,8 +24 V
2 Analog ground (AGND) 9,10 +36 V (not used)
3 -15 V 11 Digital ground (DGND)
4 +15 V 12 +5 V
5,6 Power ground (PGND)
Table 15 Fan Connector
Pin Function
1 Fan Power
2 Fan Rotation Sensor
3GND