•Chapter 3, “Installing and Removing Air Circulation Components,” describes how to install the fan trays and air filters.
•Chapter 4, “Installing and Removing Line Cards, PLIMs, and Associated Components,” provides instructions on how to install various cards, including modular services cards, switch fabric cards, route processor cards, and the physical layer interface modules.
•Chapter 5, “Installing and Removing Exterior Components,” provides instructions on how to install the chassis exterior components.
•Appendix A, “Cisco CRS Carrier Routing System
•Appendix B, “Product IDs for the Cisco CRS
Document Conventions
This guide uses the convention where 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.
Command descriptions use these conventions:
•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 router> indicates that you should be at the user level, and the prompt router# indicates that you should be at the privileged level. Access to the privileged level usually requires a password. Refer to the related software configuration and reference documentation listed in Related Cisco CRS Series Documentation for additional information.
•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 (). Examples use these conventions:
•Terminal sessions and sample console screen displays are in screen font.
•Information you enter is in boldface screen font.
•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.
Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual.
Timesaver Means the described action saves time. You can save time by performing the action described in the paragraph.
Cisco CRS Carrier Routing System
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