12Chapter 1 Introduction
Symbols and conventions used in this guide
These symbols are used to highlight critical information for the BCM450 system:
Caution: Alerts you to conditions where you can damage the equipment.
Danger: Alerts you to conditions where you can get an electrical shock.
Warning: Alerts you to conditions where you can cause the system to fail or work improperly.
Note: A Note alerts you to important information.
Tip: Alerts you to additional information that can help you perform a task.
Security note: Indicates a point of system security where a default should be changed,
!or where the administrator needs to make a decision about the level of security required for the system.
Warning: Alerts you to ground yourself with an antistatic grounding strap before performing the maintenance procedure.
Warning: Alerts you to remove the BCM450 main unit and expansion unit power cords from the ac outlet before performing any maintenance procedure.
