Mx480 Field-Replaceable Units (Frus) - Juniper MX480 Hardware Manual

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-pluggable FRUs—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 99 on page 280 lists the FRUs for the MX960 router. Before you replace an SCB or a Routing Engine,
you must take the host subsystem offline.
Table 99: Field-Replaceable Units
Hot-Removable and Hot-Insertable
FRUs
Air filter
Craft interface
Backup Switch Control Board (SCB) (if
redundant)
Master Switch Control Board (SCB) (if
nonstop active routing is configured)
Backup Routing Engine (if redundant)
Master Routing Engine (if nonstop active
routing is configured)
Dense Port Concentrators (DPCs)
Flexible PIC Concentrators (FPCs)
Modular Port Concentrators (MPCs)
Modular Interface Cards (MICs)
PICs
AC and DC power supplies (if redundant)
Fan tray
SEE ALSO
MX480 Component Redundancy | 32
Tools and Parts Required to Replace MX480 Hardware Components | 281
Hot-Pluggable FRUs
Master Switch Control Board (SCB) (if
nonstop active routing is not configured)
Master Routing Engine (if nonstop active
routing is not configured)
Switch Control Board (SCB)
(nonredundant)
Routing Engine (nonredundant)
Solid-state drives (SSDs) of Routing
Engines
280