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Cisco ASR 903 Router Hardware Installation Guide
OL-25178-04
About this Book
The preface describes the revision history, audience, organization, and conventions of Cisco ASR 903
Router Hardware Installation Guide. It also lists sources for obtaining additional information and
technical assistance from Cisco Systems.
• Document Revision History, page ix
• Document Audience, page ix
• Document Organization, page x
• Document Conventions, page x
• Obtaining Documentation and Submitting a Service Request, page xi
Document Revision History
The following table lists the major changes made to this document for each release.
Document Audience
This guide is intended for users who are responsible for installing the Cisco ASR 903 Series Aggregation
Services 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.
Revision Date Change Summary
OL-25178-04 3 June 2013 Updated supported SFPs for IOS XE Release 3.9. 1
OL-25178-03 3 April 2013 Updated supported SFPs for IOS XE Release 3.9.
OL-25178-03 29 November 2012 Updated supported SFPs for IOS XE Release 3.8.
OL-25178-03 23 August 2012 Added material for AC power supply, chassis air flow
information, and NEBS certification.
OL-25178-02 30 March 2012 Updated supported SFPs for IOS XE Release 3.6.
OL-25178-02 24 February 2012 Added power draw and installation torque values.
OL-25178-01 16 December 2011 First release published.