Figure 3–3 Power System Block Diagram (2 of 2)
From CAMP Module: Initiate
Power On Sequence
DC3 Thermal Emulator Input
System Temperature Monitor
Centerplane DC Voltage Monitor
LDC Status Monitor
I2C Bus−Power Status to System
Power Fail Function (POK_H) to
I/O Devices and Options
Initiate Overtemperature
Power Off Sequence
Initiate Overvoltage
Power Off Sequence
Initiate Undervoltage
Power Off Sequence
Fan Speed Commands to CAMP Module
Report LDC Status and Faults to System
IO ATM
CPU
Module
Module
12 Vdc
Internal
DC to DC
Converter
3.3 Vdc
DC3 3.3 Vdc/12 Vdc Input
DC3 3.3 Vdc/12 Vdc Input
DC5 5 Vdc Input
DC5 5 Vdc Input
Console Extender Module
Console Extender Module
−12 Vdc Input
−12 Vdc Input
Power
System
Control
MR−0500−92RAGS−B
DC POWER OUTPUT AND DISTRIBUTION
System Maintenance 3–9