Juniper MX480 - Overview of Installing and Replacing Components; MX480 Field-Replaceable Units (Frus)

CHAPTER 20
Overview of Installing and Replacing
Components
•
MX480 Field-Replaceable Units (FRUs) on page 247
•
Tools and Parts Required to Replace MX480 Hardware Components on page 248
MX480 Field-Replaceable Units (FRUs)
Field-replaceable units (FRUs) are router components that can be replaced at the
customer site. Replacing most FRUs requires minimal router downtime. The router uses
the following types of FRUs:
•
Hot-removable and hot-insertable FRUs—You can remove and replace these
components without powering off the router or disrupting the routing functions.
•
Hot-pluggableFRUs—You can remove and replace these components without powering
off the router, but the routing functions of the system are interrupted when the
component is removed.
Table 101 on page 248 lists the FRUs for the MX960 router. Before you replace an SCB or
a Routing Engine, you must take the host subsystem offline.
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