Juniper MX2020 Hardware Manual page 46

Table 7: Field-Replaceable Units
Hot-Removable and Hot-Insertable FRUs
PSM air filters
Air filter (lower)
Standard upper cable manager
Standard lower cable manager
Standard DC cable manager
Extended upper cable manager (optional)
Extended lower cable manager (optional)
Extended DC cable manager (optional)
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 (ADCs)
Modular Interface Cards (MICs)
AC power supply modules (if redundant)
DC power supply modules (if redundant)
Fan trays
AC power distribution modules (if
redundant)
DC 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
Replacing an MX2000 DC Power Distribution Module (-48 V) | 390
Replacing an MX2000 DC Power Distribution Module (240 V China) | 396
Replacing an MX2020 Three-Phase Wye AC Power Distribution Module | 372
Hot-Pluggable FRUs
Control Board and Routing
Engine (CB-RE) (nonredundant)
Switch Fabric Board (SFB)
(nonredundant)
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