Juniper Networks M10, M5 Safety Requirements, Warnings, and Guidelines, Field-Replaceable Units

Safety Requirements, Warnings, and Guidelines

•Hot-removable and hot-insertable FRUs—You can remove and replace these components without powering down the router or disrupting the routing functions.

•FRUs that require powering down the router—You must power down the router before removing these components.

Table 2 lists the FRUs for the M5 and M10 routers.

Table 2: Field-Replaceable Units

Hot-Removable and Hot-Insertable FRUs	FRUs That Require Powering Down the Router
Fan tray with cable management	Forwarding Engine Board FEB)
system	Routing Engine
Physical Interface Card (PIC)
Power supply (AC or DC)
Small form factor pluggable (SFP)

For FRU replacement instructions, see “Replace Hardware Components” on page 81.

Safety Requirements, Warnings, and Guidelines

To avoid harm to yourself or the router as you install and maintain it, you need to follow the guidelines for working with and near electrical equipment, as well as the safety procedures for working with Internet routers. For a discussion of how to make the installation site a safe environment, see “Prepare for Router Installation” on page 37. For a list of safety warnings, see “Safety and Regulatory Compliance Information” on page 129 and particularly “Electrical Safety Guidelines and Warnings” on page 135. However, providing an exhaustive set of guidelines for working with electrical equipment is beyond the scope of this manual.

4M5 and M10 Internet Routers Hardware Guide