Dc Power Distribution (Redundant Systems); Figure 1-17. Power Distribution (Redundant System) - Dell PowerEdge 4200 Service Manual

DC Power Distribution (Redundant Systems)

Figure 1-17 shows the power distribution scheme for the redundant power
configuration.
P1–5
PSON#
+5 VFP
power
+5 VDC
supply # 1
–5 VDC
+12 VDC
–12 VDC
+3.3 VDC
P1–5
PSON#
+5 VFP
power
+5 VDC
supply # 2
–5 VDC
+12 VDC
–12 VDC
+3.3 VDC
NOTE: A server management
cable (16-pin) carries the +5 VFP
from the system board to the
SCSI backplane. The control
panel cable (30-pin) carries the
+5 VFP from the backplane to the
control panel.

Figure 1-17. Power Distribution (Redundant System)

PWR1
BATV
PWR-
PSON#
+5 VFP
+5 VDC
–5 VDC
+12 VDC
–12 VDC
+3.3 VDC
PWR2
+12 VDC
+5 VDC
+3.3 VDC
PWR3
+12 VDC
+5 VDC
+3.3 VDC
PWRSCSI
(DDBP)
+12 VDC
+5 VDC
PWRFD
–
(FD1 4)
+12 VDC
+5 VDC
power-supply
paralleling
board
system board
power
RTC/
management
NVRAM
logic
BATV
PWR-
PSON#
+5 VFP
+5 VDC
–5 VDC
+12 VDC
–12 VDC
+3.3 VDC
main memory
sockets
DIMM A
through
DIMM H
+3.3 VDC
core VCC (+2.1 to +3.5 VDC)
PROCESSOR 1
+1.5 VDC
and
PROCESSOR 2
P6 signal terminators
SCSI backplane (six drive bays)
6
5 4 3 2
control panel
+5 VFP from SCSI backplane
3 X 6 LEDs
battery
+3.3 VDC
+5 VDC
+12 VDC
–12 VDC
+5 VDC
–5 VDC
+12 VDC
–12 VDC
battery (+3 VDC)
+3.3 VDC
+5 VFP
PWR-
+5 VFP to SCSI
backplane
+12 VDC
fuse
processor
+5 VDC
core
regulator (2)
+5 VDC
GTL
regulator
CD-ROM
1
power-on
reset
on/off
LED
System Overview
PCI4
through
PCI8
EISA1
through
EISA3
SMB
backplane
FAN1
through
FAN5
MOUSE
KEY-
BOARD
FLOPPY
speaker
1-19