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Transition card
(OEM supplied)
2
I
C
node
2
I
C
external
bus
MUX
2
I
C
internal
bus
ADM
Temp.
1026
voltages
System
Monitor
Temp.
sensor
Netra CP2500 board
Typical Environmental Monitoring Application Block Diagram
FIGURE 2-1
Power bus (+5.0 and 3.3 volts)
PWR
SMC
2
I
C
SMC
firmware
Solaris
SMC driver
PICL
application
program
(monitor &
warn only)
midplane
PWR
Other boards
(OEM supplied)
Chapter 2 Environmental Monitoring
Rack
PWR
Voltage
outputs
Power-supply
25
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