Conventions, For information on Turn to

8ABOUT THIS GUIDE

For information on	Turn to

Removing and replacing the fan	“Fan Tray Assembly Removal and
tray assembly	Replacement” on page 45
Complying with environmental	Appendix A: System
and compliance specifications	Specifications
Installing field-replaceable	Appendix B: Field-Replaceable
components	Units
Checking your site for	Appendix C: Site Requirements
environmental and safety	and Safety Codes
requirements
Getting help from your network	Appendix D: Technical Support
supplier or 3Com
Returning 3Com products to	“Returning Products for Repair”
3Com for repair	on page 57

Conventions

Table 1 Notice Icons

Icon	Type	Description

	Information	Information that describes important
	Note	features or instructions
	Caution	Information that alerts you to potential loss
		of data or potential damage to an
		application, system, or device
	Warning	Information that alerts you to potential
		personal injury

Table 2 Text Conventions

Convention	Description

Screen	This typeface represents information as it appears
display	on the screen.

Commands	The word “command” means that you must
	enter the command exactly as shown and then
	press Return or Enter. Commands appear in bold.
	Example:
	To update the system software, enter the
	following command:

	This guide always gives the full form of a
	command in uppercase and lowercase letters.
	However, you can abbreviate commands by
	entering the fewest letters in each command that
	identify a unique command. Commands are not
	case sensitive.

The words “enter”	When you see the word “enter” in this guide,
and “type”	you must type something, and then press Return
	or Enter. Do not press Return or Enter when an
	instruction simply says “type.”

Keyboard key	If you must press two or more keys
names	simultaneously, the key names are linked with a
	plus sign (+). Example:
		Press Ctrl+Alt+Del

Words in italics	Italics are used to:
	■	Emphasize a point.
	■	Denote a new term at the place where it is
		defined in the text.