Chapter 2 Environmental Monitoring 25
FIGURE2-1 TypicalEnvironmental Monitoring Application Block Diagram
Transition card
(OEM supplied)
I2C
node
Rack
midplane
PWR PWR
PWR
MUX
I2C
internal
bus
Solaris
SMC driver
Temp.
sensor
Temp.
voltages
ADM
1026
System
Monitor
PICL
application
program
(monitor &
warn only)
Voltage
outputs
Other boards Power-supply
(OEM supplied)
Netra CP2500 board
I2C
external
bus Power bus (+5.0 and 3.3 volts)
SMC
firmware
SMC
I2C