Juniper Networks Field-Replaceable Units in an EX8208 Switch, FRUs in an EX8208 Switch, Type

Chapter 2: Component Descriptions

Related Topics • LCD Panel in an EX8200 Switch on page 17

•Understanding Alarm Types and Severity Levels on EX Series Switches

Field-Replaceable Units in an EX8208 Switch

Field-replaceable units (FRUs) are switch components that you can replace at your site. The switch uses these types of FRUs:

•Hot-insertable and hot-removable—You can remove and replace these components without powering off the switch or disrupting the switching function.

•Hot-pluggable—You can remove and replace these components without powering off the switch, but the switching function is interrupted until you replace the component.

Table 9 on page 23 lists the FRUs for the EX8208 switch and their types.

Table 9: FRUs in an EX8208 Switch

FRU	Type
Power supplies	Hot-insertable and hot-removable.
Fan tray	Hot-insertable and hot-removable.
Switch Fabric and Routing Engine (SRE)	Redundant configuration:
module
	• Master SRE module is hot-pluggable.
	• Backup SRE module is hot-insertable and hot-removable.
	Base configuration:
	• Switch must be disabled before the SRE module is removed. See “Taking the SRE
	Module Offline in an EX8208 Switch” on page 213.
	See “EX8208 Switch Configurations” on page 6.
Switch Fabric (SF) module	Redundant configuration:
	• SF module is hot-insertable and hot-removable.
	Base configuration:
	• We recommend that you disable the switch before removing the SF module. See
	“Taking the SF Module Offline in an EX8208 Switch” on page 216.
	See “EX8208 Switch Configurations” on page 6.
8-port SFP+ line card	Hot-insertable and hot-removable.
40-port SFP+ line card	We recommend that you take the line cards offline before removing them. See
	“Removing a Line Card from an EX8200 Switch” on page 218.
48-port SFP line card
48-port RJ-45 line card
SFP and SFP+ transceivers	Hot-insertable and hot-removable.

Copyright © 2010, Juniper Networks, Inc. 23