Cisco ASR 902U Manual

Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware
Installation Guide
First Published: 2014-03-14
Last Modified: 2017-07-30
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: [phone]
800 553-NETS (6387)
Fax: [phone]

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS,
INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH
THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY,
CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB's public domain version
of the UNIX operating system. All rights reserved. Copyright ©1981, Regents of the University of California.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS" WITH ALL FAULTS.
CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.
IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT
LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS
HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network
topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional
and coincidental.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: http://
www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership
relationship between Cisco and any other company. (1110R)
©2015-2017 Cisco Systems, Inc. All rights reserved.

CONTENTS
Preface Preface xi
Document Revision History xi
Document Audience xii
Document Organization xii
Document Conventions xiii
Obtaining Documentation and Submitting a Service Request xiv
CHAPTER 1 Overview 1
Cisco ASR 902 Router Features 1
System Specifications 3
Power Supply Features 4
Redundancy 4
Dying Gasp 4
Status LEDs 4
DC Power Specifications 4
AC Power Specifications 8
Fan Tray 9
Fan Tray (A902-FAN-E) 10
Dust Filter (A902-FAN-F) 11
Air Plenum 11
RSP Modules 11
Supported RSPs 12
A900-RSP1-Supported Interface Modules 14
A900-RSP2-Supported Interface Modules 15
A900-RSP3C-200-S Supported Interface Modules 17
Supported RSP Features 18
Network Timing Interfaces 18
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
iii

RSP Interfaces 18
GNSS Module (A900-CM-GNSS) 20
GNSS Module RF Input Requirements 21
Interface Modules 22
Gigabit Ethernet SFP Interface Module 22
Gigabit Ethernet RJ45 Interface Module 23
1-Port 10-Gigabit Ethernet XFP Interface Module 24
16-Port T1/E1 Interface Module 25
4-port OC3/STM-1 (OC-3) or 1-port OC12/STM-4 (OC-12) Interface Module 25
8x1 Gigabit Ethernet SFP + 1x10 Gigabit Ethernet SFP+ Combination Interface Module
27
8x1 Gigabit Ethernet RJ45 + 1x10 Gigabit Ethernet SFP+ Combination Interface
Module 28
8-Port 10 Gigabit Ethernet Interface Module (8x10GE) 29
2-Port 10 Gigabit Ethernet SFP+ Interface Module (2x10 GE) 30
2-Port 40 Gigabit Ethernet QSFP Interface Module (2x40 GE) 31
14-Port Serial Interface Module 31
Supported Standards 32
6-Port E and M Interface Module 33
4-Port C37.94 Interface Module 33
Blank Deflector (A900-IMA-BLNK-DEF) 34
Maximum Operating Ambient Temperature Support for RSP3 Modules 34
Temperature Sensor 35
Temperature Sensors on the A900 RSP3 modules 35
Serial Number Label Location 36
Interface Numbering 36
Regulatory Compliance 37
CHAPTER 2 Preparing for Installation 39
Safety Guidelines 39
Standard Warning Statements 39
Safety Guidelines for Personal Safety and Equipment Protection 42
Safety Precautions for Module Installation and Removal 42
Safety with Electricity 43
Power Supply Considerations 47
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
iv
Contents

Preventing ESD Damage 47
Site Planning 48
General Precautions 48
Site Planning Checklist 49
Site Selection Guidelines 49
Environmental Requirements 49
Physical Characteristics 49
Air Flow Guidelines 50
Air Flow Guidelines for Enclosed Rack Installation 52
Floor Loading Considerations 52
Site Power Guidelines 52
Electrical Circuit Requirements 54
Site Cabling Guidelines 54
Asynchronous Terminal Connections 55
Interference Considerations 55
Electromagnetic Interference 55
Radio Frequency Interference 56
Lightning and AC Power Fault Interference 56
Rack-Mounting Guidelines 56
Precautions for Rack-Mounting 56
Rack Selection Guidelines 56
Equipment Rack Guidelines 57
Locating for Safety 57
Locating for Easy Maintenance 57
Locating for Proper Airflow 58
Installation Checklist 58
Creating a Site Log 59
Receiving the Cisco ASR 902 Router 60
Chassis-Lifting Guidelines 60
Tools and Equipment 61
Unpacking and Verifying the Shipped Contents 62
CHAPTER 3 Installing the Cisco ASR 902 Router 65
Prerequisites 65
Installing the Router in a Rack 65
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
v
Contents

Installing the Chassis Brackets 66
Installing the Router Chassis in the Rack 67
Installing the Router Chassis in the Air Plenum 68
Attaching the Cable Guides 69
Installing the Chassis Ground Connection 71
Installing the Fan Tray 74
Installing the Dust Filter 75
Removing the Dust Filter 75
Dust Filter Maintenance 75
Removing and Replacing the Fan Tray 75
RSP Installation 77
Installing an RSP Module 78
Removing an RSP Module 79
Interface Module Installation 79
Installing an Interface Module 80
Removing an Interface Module 81
Hot-Swapping an Interface Module 81
Installing the Power Supply 82
Preventing Power Loss 83
Power Connection Guidelines 83
Guidelines for DC-Powered Systems 84
Guidelines for AC-Powered Systems 84
Installing a DC Power Supply 84
Installing a DC Power Supply Module 85
Installing DC Power Supply Unit (A900-PWR550-D) 85
Installing DC Power Supply Unit (A900-PWR550-D-E and A900-PWR1200-D) 88
Installing DC Power Supply Unit (A900-PWR550-D-E and
A900-PWR1200-D) 88
Activating a DC Power Supply 89
Removing and Replacing a DC Power Supply 90
Installing an AC power Supply 91
Installing an AC Power Supply Module 91
Recommended Power Cables 91
Activating an AC Power Supply 93
Removing and Replacing an AC Power Supply 93
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
vi
Contents

Installing Dust Caps 94
Connecting a Cisco ASR 902 Router to the Network 95
Connecting Console Cables 95
Connecting to the USB Serial Port Using Microsoft Windows 95
Connecting to the Console Port Using Mac OS X 98
Connecting to the Console Port Using Linux 98
Installing the Cisco USB Device Driver 99
Uninstalling the Cisco USB Device Driver 99
Connecting to the Auxiliary Port 100
Connecting a Management Ethernet Cable 101
Installing and Removing SFP and XFP Modules 101
Connecting a USB Flash Device 102
Removing a USB Flash Device 102
Connecting Timing Cables 102
Connecting a Cable to the BITS Interface 103
Connecting Cables to a GPS Interface 103
Connecting a Cable to the Input 10-MHz or 1-PPS Interface 103
Connecting a Cable to the Output 10-MHz or 1-PPS Interface 104
Connecting a Cable to the ToD Interface 104
Connecting a Cable to the GNSS Antenna Interface 104
Connecting Ethernet Cables 105
Connecting Cables to SFP Modules 106
Connecting T1/E1 Cables 106
Installing the Cable Connector 107
RJ45 Cable Pinouts 108
Connecting Cables to the Patch Panel 108
Recommended Patch Panel 109
Connecting Serial Cables 109
Connecting the Fan Tray Alarm Port 110
Connecting a Cable to the Fan Tray Alarm Port 111
Connector and Cable Specifications 111
CHAPTER 4 Cisco Router Initial Configuration 113
Checking Conditions Prior to System Startup 113
Powering Up the Cisco Router 114
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
vii
Contents

Verifying the Front Panel LEDs 116
Verifying the Hardware Configuration 116
Checking Hardware and Software Compatibility 116
Configuring the Cisco Router at Startup 116
Accessing the CLI Using the Console 117
Configuring Global Parameters 117
Checking the Running Configuration Settings 118
Saving the Running Configuration to NVRAM 119
Safely Powering Off the Cisco Router 119
CHAPTER 5 Troubleshooting 121
Pinouts 121
BITS Port Pinouts 121
GPS Port Pinouts 122
Time-of-Day Port Pinouts 123
Alarm Port Pinouts 124
T1/E1 Port Pinouts 125
Serial Interface Modules Pinouts 127
DB-9 Connector Pinouts 127
RJ-45 Connector Pinouts 128
Management Ethernet Port Pinouts 129
USB Console Port Pinouts 129
USB Flash or MEM Port Pinouts 130
Fiber-Optic Specifications 131
LED Summary 131
RSP LEDs 131
ASR900-RSP LED 131
ASR900-RSP2 and ASR900-RSP3 LED Information 132
Interface Module LEDs 133
OC-3/OC-12 Interface Module LEDs 134
T1/E1 Interface Module LEDs 135
14-Port Serial Interface Module LEDs 135
4-Port C37.94 Interface Module LEDs 136
Power Supply LEDs 137
Fan Tray LEDs 139
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
viii
Contents

Alarm Conditions 139
APPENDIX A Site Log 141
Manufacturers of Equipment Used in Cisco ASR 902 Router 142
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
ix
Contents

Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
x
Contents

Preface
This preface describes the revision history, audience, organization, and conventions of the Cisco ASR 902
and Cisco ASR 902U Router Hardware Installation Guide. It also lists sources for obtaining additional
information and technical assistance from Cisco Systems.
•Document Revision History, page xi
•Document Audience, page xii
•Document Organization, page xii
•Document Conventions, page xiii
•Obtaining Documentation and Submitting a Service Request, page xiv
Document Revision History
The following table lists the major changes made to this document for each release.
Change SummaryDateRivision
Added information about the Cisco ASR 902U Aggregation
Services Router.
July 2017
—
Added information on C37.94 serial interface module.November 2016
—
Added dust cap information. Added supported patch panel
information. Updated warning statements.
April 2016
—
Updated A900-RSP3 and the supported interface modules.
Added blank deflector information. Added ambient temperature
for RSP3.
March, 2016
—
Updated safety statements. Replaced Cisco Software Advisor
information with Software Research information.
January 6, 2015
—
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
xi

Change SummaryDateRivision
Added information about the installation of air plenum and
the Cisco Microsoft Windows 7 USB driver, RSP-2 LED
behavior, and new interface modules supported. Updated the
description for Time-of-Day port pinouts.
OL-31440-02OL-31440-02
Initial releaseFebruary 14, 2014OL-31440-01
Document Audience
This guide is intended for users who are responsible for installing the Cisco router. It is intended for users
who may not be familiar with the initial configuration and troubleshooting tasks, the relationship among tasks,
or the Cisco IOS software commands necessary to perform particular tasks.
For information on general software features that are also available on other Cisco platforms, see the Cisco
IOS XE technology guide pertaining to that specific software feature.
Document Organization
This guide includes the following chapters and appendix:
DescriptionTitle
This chapter provides an overview of the Cisco ASR
902 and ASR 902U Routers.
Chapter 1, Overview
This chapter provides site preparation guidelines for
installing the Cisco ASR 902 and ASR 902U Routers.
Chapter 2, “Preparing for Installation, on page 39”
This chapter describes the Cisco ASR 902 and ASR
902U Routers and how to install it.
Chapter 3, “Installing the Cisco ASR 902 Router, on
page 65”
This chapter describes how to start the Cisco ASR
902 and ASR 902U Routers and create an initial
system configuration.
Chapter 4, “Cisco Router Initial Configuration, on
page 113”
This chapter provides LED and pinout information
for troubleshooting purposes.
Chapter 5, “Troubleshooting”
This provides a site log for tracking the installation
and maintenance activities of the router.
Appendix A, “Site Log”
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
xii
Preface
Document Audience

Document Conventions
This documentation uses the following conventions:
DescriptionConvention
The ^and Ctrl symbols represent the Control key.
For example, the key combination ^D or Ctrl-D
means hold down the Control key while you press
the Dkey. Keys are indicated in capital letters but are
not case sensitive.
^or Ctrl
A string is a nonquoted set of characters shown in
italics. For example, when setting an SNMP
community string to public, do not use quotation
marks around the string or the string will include the
quotation marks.
string
Command syntax descriptions use the following conventions:
DescriptionConvention
Bold text indicates commands and keywords that you
enter exactly as shown.
bold
Italic text indicates arguments for which you supply
values.
italics
Square brackets enclose an optional element (keyword
or argument).
[x]
A vertical line indicates a choice within an optional
or required set of keywords or arguments.
|
Square brackets enclosing keywords or arguments
separated by a vertical line indicate an optional
choice.
[x | y]
Braces enclosing keywords or arguments separated
by a vertical line indicate a required choice.
{x | y}
Nested sets of square brackets or braces indicate optional or required choices within optional or required
elements. For example:
DescriptionConvention
Braces and a vertical line within square brackets
indicate a required choice within an optional element.
[x {y | z}]
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
xiii
Preface
Document Conventions

Examples use the following conventions:
DescriptionConvention
Examples of information displayed on the screen are
set in Courier font.
screen
Examples of text that you must enter are set in Courier
bold font.
bold screen
Angle brackets enclose text that is not printed to the
screen, such as passwords.
< >
An exclamation point at the beginning of a line
indicates a comment line. (Exclamation points are
also displayed by the Cisco IOS software for certain
processes.)
!
Square brackets enclose default responses to system
prompts.
[ ]
The following conventions are used to attract the attention of the reader:
Means reader be careful . In this situation, you might do something that could result in equipment damage
or loss of data.
Caution
Means reader take note . Notes contain helpful suggestions or references to materials that may not be
contained in this manual.
Note
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information,
see the monthly What’s New in Cisco Product Documentation , which also lists all new and revised Cisco
technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
xiv
Preface
Obtaining Documentation and Submitting a Service Request

CHAPTER 1
Overview
The Cisco ASR 902 Router and the Cisco ASR 902U Router are collectively referred to as the Cisco ASR
902 Router in this document. Any differences between the routers are specifically called out.
Note
The Cisco ASR 902 Router is a full-featured aggregation platform designed for cost-effective delivery of
converged mobile and business services. With shallow depth, low power consumption, and an extended
temperature range, this compact 2-rack unit (RU) router provides high service scale and flexible hardware
configuration.
The Cisco ASR 902 Router expands the Cisco service provider product portfolio by providing a rich and
scalable feature set of Layer 2 VPN (L2VPN) and Layer 3 VPN (L3VPN) services in a compact package.
It also supports a variety of software features, including Carrier Ethernet features, Timing over Packet, and
pseudowire.
The Cisco ASR 902 Router is positioned as a preaggregation router in IP Radio Access Network (RAN)
(Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS),
Image Maximum (iMAX), Code division multiple access (CDMA), and Long Term Evolution (LTE))
networks or an aggregation router in Carrier Ethernet networks.
•Cisco ASR 902 Router Features, page 1
•Interface Numbering, page 36
•Regulatory Compliance, page 37
Cisco ASR 902 Router Features
The Cisco ASR 902 Router has the following hardware features:
•2-RU modular chassis designed for installation in a 300-mm European Telecommunications Standards
Institute (ETSI) cabinet
•Dedicated slots in the chassis that support the following:
◦Up to four interface modules
◦One Route Switch Processor (RSP)
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
1

◦Up to two DC or two AC or a combination of AC and DC power supply units
◦One fan tray
•Network frequency, phase, and time inputs and outputs for network interfaces (SyncE and TDM), BITS,
1 PPS or 10 MHz and Timing over Packet (IEEE 1588-2008)
•Adjustable front and rear rail mounting locations
•Front panel access to power supplies, fan tray, RSP, and interface modules
•Online insertion and removal (OIR) of interface modules, power supplies, and fan tray
•Discrete status LEDs on power supply, interface module, RSP, and fan tray units
•Two alarm dry contact inputs (either normally open or normally closed)
•Environmental-monitoring and environmental-reporting functions
•LED indicators for critical, major, and minor alarms
•Side-to-side forced air cooling
•Temperature range of -40 to 149 degrees F (-40 to 65 degrees C) with 550W DC power supply
•Temperature range of 32 to 122 degrees F (-5 to 55 degrees C) with 550W AC power supply
The figure below illustrates the Cisco ASR 902 Router chassis design.
Figure 1: Cisco ASR 902 Router Chassis Design
ComponentLabel
Interface modules1
RSP unit2
Fan tray3
Redundant power units (two DC power units are
shown)
4
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
2
Overview
Cisco ASR 902 Router Features

System Specifications
The table below summarizes the system specifications and environmental requirements for the Cisco ASR
902 Router.
Table 1: Cisco ASR 902 Router System Specifications
3.56 in. x17.44 in. x 10.565 in. (90.424 x 442.976 x
268.351 mm)
This measurement includes handles from the
power supply, fan tray, and interface
modules installed in the chassis.
Note
Dimensions (Height x Width x Depth)
24.030 pounds (10.9 kg)
This weight includes a power
supply.
Note
Weight
The Cisco ASR 902 Router supports the following
temperature ranges with the DC power supply:
•–60 to 4000 meters: –40 to 104ºF (–40 to +
40ºC)
•–60 to 1800 meters: –40 to 149ºF (–40 to +
65ºC)
The Cisco ASR 902 Router supports the following
temperature ranges with the AC power supply:
•–60 to 4000 meters: 32 to 104ºF (0 to 40ºC)
•–60 to 1800 meters: 23 to 140ºF(–5 to 55ºC)
Operating Temperature
–40 to 185ºF (–40 to +85ºC) storage temperature
Nonoperating Temperature
5 to 95% operating noncondensing relative humidityOperating Humidity
–60 to 1800m operating altitude for full operating
temperature range; up to 4000m at up to 40ºC.
Operating Altitude
4572m storage altitudeNonoperating Altitude
1.0 g from 1.0 to 150 HzVibration
30 G half sine 6 and 11 msShock
Random: 1.15 gRMS 3 to 200 Hz, 30 minutes/axis
Sine: 10 to 500 Hz @ 0.8 G peak/5 sweep cycles/axis
Nonoperating Vibration
< 68.5 dBa @ 27ºCOperating Acoustics
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
3
Overview
System Specifications

Power Supply Features
The Cisco ASR 902 Router supports AC and DC power supplies. For more information about installing the
Cisco ASR 902 Router power supplies, see theInstalling the Power Supply section. The power sections provide
more information about the power supply:
Redundancy
The Cisco ASR 902 Router chassis includes a slot for optional redundant power supply. The redundant power
supply option provides a second power supply to ensure that power to the chassis continues uninterrupted if
one power supply fails or input power on one line fails. Redundancy is supported either with identical power
supplies or a combination of AC and DC power supply. The Cisco ASR 902 Router supports current sharing
between the power supplies.
A redundant power supply on the Cisco ASR 902 Router is recommended. Each power supply should be
connected to separate independent power sources to ensure that the router maintains power in the event of a
power interruption caused by an electrical failure, a wiring fault, or a tripped circuit breaker.
To comply with IEC 61850-3 (voltage interruptions), redundant power supplies with separately derived
power feeds are required.
Caution
Dying Gasp
The Cisco ASR 902 Router DC power supply supports the Dying Gasp feature, which allows the router to
provide an input power loss notification to the RSP so that the RSP can send appropriate SNMP traps or OAM
messages and update log files on the router. With the DC power supply, the router supports a minimum input
power loss detection time of 2 milliseconds (DC) and continued operation of at least 6 milliseconds (DC)
after the notification.
Continued DC power supply operation may vary for voltages other than +24/–48V.
Note
Dying Gasp is not supported on the ASR 900 RSP3 module with the 1200 W DC power supply.Note
Status LEDs
LEDs are also provided on each power supply to indicate the status of the input power and the health of the
power supply. For more information about the LEDs on the Cisco ASR 902 Router, see Troubleshooting.
DC Power Specifications
The Cisco ASR 902 Router uses a +24/-48 DC voltage power supply (with DC voltage tolerance from -19 to
-72 VDC).
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
4
Overview
Power Supply Features

The power supply provides 550W output power for the system. The power supply is field replaceable, hot
swappable, and operates separately from the fan tray. The power supply contains a front panel with mounting
screws, a handle for insertion and removal, and two status LEDs. No ON/OFF switch is provided.
The DC PSU models supported on the router are:
•A900-PWR550-D—Uses an Euro-style three-position terminal block connector ( Figure 1-2 )
•A900-PWR550-D-E—Uses a T-shaped connector ( Figure 1-3 )
•A900-PWR1200-D—Provides 975 W output power for system 12 V power with the A902-FAN-E
module. As most of the system configurations using A900-RSP3C-200-S RSP modules require power
exceeding 550 W, we recommend using the A900-PWR1200-D power supply with A900-RSP3C-200-S
RSP modules. ( Figure 1-4 )
Figure 2: DC PSU Module (A900-PWR550-D) with Euro-Style Connector
ComponentLabel
Euro-style connector1
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
5
Overview
Power Supply Features

Figure 3: DC PSU (A900-PWR550-D-E) with T-Shaped Connector
ComponentLabel
T-shaped connector1
Table 2: DC Power Supply Specifications ‘ (550 W)
A900-PWR550-D, A900-PWR550-D-EPart numbers
+24 VDC/–48 VDC
Nominal input voltage specification
–19.2 VDC to –72 VDC
Input voltage range
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
6
Overview
Power Supply Features