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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
Preface
This Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide preface contains
these sections:
•Changes to This Document, page ix
•Audience, pagex
•Purpose, page x
•Document Organization, pagex
•Document Conventions, pagex
•Obtaining Documentation and Submitting a Service Request, pagexi

Changes to This Document

Table 1 lists the technical changes made to this document since it was first developed.
Table1 Changes to This Document
Date Change Summary
March 2015 Updated rear mounting installing sections and fan tray sections to
meet NEBS compliance requirements. Added new section on
installing and removing the air filter.
October 2014 Added new optics supported in IOS XR Release 5.2.2
September 2014 Added new optics supported in IOS XR Release 5.1.2.
June 2014 Added new optics supported in IOS XR Release 5.2.0.
January 2014 Added information about how to install optional air baffle
accessory kit on the Cisco ASR 9001 Router.
Added information about the new Fast Ethernet SFP modules,
10-GE SFP+ transceivers, and DWDM SFP+ transceivers.
May 2013 Added information about Cisco ASR 9001-S Router.
June 2012 Initial release of this document.