User's Manual

Table Of Contents
Describes how to isolate problems, read LEDs,
interpret error and status messages, and recover
software images.
TroubleshootingChapter 4
Provides information on part numbers of the router
variants, SFP modules, product, power, and
environmental specifications. It also contains safety
and compliance information.
Specifications and Part NumbersAppendix A
Provides cable specifications to use if you plan to build
your own cables.
Cable SpecificationsAppendix B
Provides a sample site log.Site LogAppendix C
Conventions
Table 1: Conventions Followed in This Document
IndicationConvention
Commands and keywords and user-entered text appear in bold font.bold font
Document titles, new or emphasized terms, and arguments for which you
supply values are in italic font.
italic font
Elements in square brackets are optional.[ ]
Required alternative keywords are grouped in braces and separated by vertical
bars.
{x | y | z }
Optional alternative keywords are grouped in brackets and separated by
vertical bars.
[ x | y | z ]
A nonquoted set of characters. Do not use quotation marks around the string
or the string will include the quotation marks.
string
Terminal sessions and information the system displays appear in courier
font.
courier font
Nonprinting characters such as passwords are in angle brackets.< >
Default responses to system prompts are in square brackets.[ ]
An exclamation point (!) or a pound sign (#) at the beginning of a line of code
indicates a comment line.
!, #
Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
viii OL-29732-01
Preface
Conventions
REVIEW DRAFT - CISCO CONFIDENTIAL