Document Conventions - Cisco 7246 - uBR Router Hardware Installation Manual

Preface
Appendix E, "Frequency Allocation
Tables"
Appendix F, "Manufacturers for Headend
Provisioning Requirements"
Appendix G, "Site Log"

Document Conventions

This publication uses the following conventions:
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Command descriptions use these conventions:
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•
•
•
•
Examples use these conventions:
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•
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Means reader be careful. You are capable of doing something that might result in equipment damage or
Caution
loss of data.
Means reader take note. Notes contain helpful suggestions or references to materials not contained in
Note
this manual.
OL-5421-03
Information on the National Television System Committee (NTSC) frequency
map for 6-MHz channel bands and the Phase Alternating Line (PAL) and
SEquential Couleur Avec Memoire (SECAM) frequency map for 8-MHz channel
bands.
Manufacturers and websites required to prepare and provision a North American
or a European cable headend to support digital data.
Example of a cable headend site log—Use to keep a historical record of actions
relevant to the Cisco uBR7200 series router installation, operations, and
maintenance.
The symbol ^ represents the key labeled Control. For example, the key combination ^z means hold
down the Control key while you press the z key.
Examples that contain system prompts denote interactive sessions, indicating the commands that
you should enter at the prompt. The system prompt indicates the current level of the EXEC
command interpreter. For example, the prompt
and the prompt indicates that you should be at the privileged level.
Router#
Access to the privileged level usually requires a password. For additional information, refer to the
related software configuration and reference documentation listed in the Cisco uBR7200 Series
Software Configuration Guide at the following URL:
http://www.cisco.com/en/US/docs/cable/cmts/ubr7200/configuration/guide/cr72scg.html
Commands and keywords are in boldface font.
Arguments for which you supply values are in italic font.
Elements in square brackets ([ ]) are optional.
Alternative but required keywords are grouped in braces ({ }) and separated by vertical bars (|).
Terminal sessions and sample console screen displays are in
Information you enter is in
Nonprinting characters, such as passwords, are in angle brackets (< >).
Default responses to system prompts are in square brackets ([ ]).
Exclamation points (!) at the beginning of a line indicate a comment line.
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
Router>
font.
boldface screen
indicates that you should be at the user level,
font.
screen
xi