Juniper Networks M5 - Manual (Page 24)

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
system
Physical Interface Card (PIC)
Power supply (AC or DC)
Small form factor pluggable (SFP)
Forwarding Engine Board FEB)
Routing Engine
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.
4 M5 and M10 Internet Routers Hardware Guide