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Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
OL-17501-09
Chapter 2 Functional Description
Power System Functional Description
Figure 2-49
Cisco ASR 9904 Router AC Power System Block Diagram—Version 2 Power System
AC Power
S
helf with
AC/DC Power
Su
pply Mod
u
le
s
Power Di
s
tri
bu
tion
B
a
ckpl
a
ne
AC/DC
Pwr
S
ply
Mod
u
le-
A0
3
KW
EMI
Filter
–54V
–54V
–54V
–54V RTN
–54V
–54V
AC1-1
220V
20A 1O
3
901
8
2
AC/DC
Pwr
S
ply
Mod
u
le-
A1
3
KW
EMI
Filter
AC1-2
220V
20A 1O
AC/DC
Pwr
S
ply
Mod
u
le-
A2
3
KW
EMI
Filter
AC1-
3
220V
20A 1O
AC/DC
Pwr
S
ply
Mod
u
le-
A
3
3
KW
EMI
Filter
AC1-4
220V
20A 1O
Line C
a
rd (x1)
S
oft-
S
t
a
rt
Circ
u
it,
EMI Filter
N
a
rrow
R
a
nge,
Fixed
R
a
tio
(5:1)
10.
8
V
Converter
Point of
Lo
a
d
(POL)
Converter
s
R
S
P C
a
rd (x2)
S
oft-
S
t
a
rt
Circ
u
it,
EMI Filter
N
a
rrow
R
a
nge,
Fixed
R
a
tio
(5:1)
10.
8
V
Converter
Point of
Lo
a
d
(POL)
Converter
s
F
a
n Tr
a
y
S
oft-
S
t
a
rt
Circ
u
it,
EMI Filter
F
a
n
Controller
a
nd
Cooling
F
a
n
s
–54V
–54V
–54V
–10.
8
V
–10.
8
V
Line C
a
rd (x1)
S
oft-
S
t
a
rt
Circ
u
it,
EMI Filter
N
a
rrow
R
a
nge,
Fixed
R
a
tio
(5:1)
10.
8
V
Converter
Point of
Lo
a
d
(POL)
Converter
s
–54V
–10.
8
V