Juniper MX2010 Hardware Manual page 44

NOTE: Before you replace most host subsystem components, such as the Control Board
and Routing Engine (CB-RE), you must take the host subsystem offline.
You must power off the Control Board and Routing Engine (CB-RE) before replacing a
CompactFlash card or solid-state drive in a Routing Engine.
Table 7 on page 18 lists the FRUs for the MX2010 router.
Table 7: Field-Replaceable Units
Hot-Removable and Hot-Insertable FRUs
PSM air filter
Air filter (lower)
Lower cable manager
Craft interface
Switch Fabric Board (SFB) (if redundant)
Backup CB-RE (if redundant)
Master CB-RE (if nonstop active routing is
configured)
Modular Port Concentrators (MPCs)
Adapter cards
Modular Interface Cards (MICs)
AC power supply modules (if redundant)
DC power supply modules (if redundant)
Fan trays
DC power distribution modules (if
redundant)
AC power distribution modules (if
redundant)
NOTE: A PDM can be replaced without
impacting services. However, you must first
disconnect it from power. See the PDM
replacement procedures listed in Related
Documentation.
RELATED DOCUMENTATION
Hot-Pluggable FRUs
Control Board and Routing
Engine (CB-RE) (nonredundant)
Switch Fabric Board (SFB)
(nonredundant)
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