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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 2-52
Cisco ASR 9922 Router DC Power System Block Diagram—Version 2 Power System
Fan Tray (x4)
Power Distribution
DC Power Shelf-0 w/DC/DC 2KW
Power Supply Modules
Soft-Start
Circuit,
EMI
Filter, and
Fan
Controller
Line Card (x20)
Narrow
Range,
Fixed
Ratio
(5:1)
10.8V
Converter
Soft-Start
Circuit,
EMI
Filter, and
Fan
Controller
Point of
Load
(POL)
Converters
-54V
-10.8V
Cooling
Fans
-54V
Route Processor (x2)
Narrow
Range,
Fixed
Ratio
(5:1)
10.8V
Converter
Soft-Start
Circuit,
EMI
Filter, and
Fan
Controller
Point of
Load
(POL)
Converters
-54V
-10.8V
Fabric Card (x7)
Narrow
Range,
Fixed
Ratio
(5:1)
10.8V
Converter
Soft-Start
Circuit,
EMI
Filter, and
Fan
Controller
Point of
Load
(POL)
Converters
-54V
-10.8V
PM0
PM1
PM2
PM3
DC-A1 (60A)
-54V
-54V
-54V
-54V
-54V
-54V RTN
DC-B1 (60A)
TB-A1
TB-B1
DC-A2 (60A)
DC-B2 (60A)
TB-A2
TB-B2
DC-A3 (60A)
DC-B3 (60A)
TB-A3
TB-B3
DC-A4 (60A)
DC-B4 (60A)
TB-A4
TB-B4
DC Power Shelf-1 w/DC/DC 2KW
Power Supply Modules
PM4
PM5
PM6
PM7
DC-A5 (60A)
-54V
DC-B5 (60A)
TB-A5
TB-B5
DC-A6 (60A)
DC-B6 (60A)
TB-A6
TB-B6
DC-A7 (60A)
DC-B7 (60A)
TB-A7
TB-B7
DC-A8 (60A)
DC-B8 (60A)
TB-A8
TB-B8
DC Power Shelf-2 w/DC/DC 2KW
Power Supply Modules
PM8
PM9
PM10
PM11
DC-A9 (60A)
-54V
DC-B9 (60A)
TB-A9
TB-B9
DC-A10 (60A)
DC-B10 (60A)
TB-A10
TB-B10
DC-A11 (60A)
DC-B11 (60A)
TB-A11
TB-B11
DC-A12 (60A)
DC-B12 (60A)
TB-A12
TB-B12
DC Power Shelf-3 w/DC/DC 2KW
Power Supply Modules
PM12
PM13
PM14
PM15
DC-A13 (60A)
-54V
DC-B13 (60A)
TB-A13
TB-B13
DC-A14 (60A)
DC-B14 (60A)
TB-A14
TB-B14
DC-A15 (60A)
DC-B15 (60A)
TB-A15
TB-B15
DC-A16 (60A)
DC-B16 (60A)
TB-A16
TB-B16
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