CAUTION: For a fully configured router, all the four fan modules must be operational,
and in the event of any fan module failure the failed fan module must be replaced
immediately.
SEE ALSO
Locating the Serial Number on a MX10003 Router or Component | 165
Guidelines for Packing Hardware Components for Shipment | 170
How to Return a Hardware Component to Juniper Networks, Inc.
MX10003 Field-Replaceable Units
Field-replaceable units (FRUs) are router components that can be replaced at the customer site (see
Table 7 on page 24). 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 7 on page 24 lists the FRUs for the router.
Table 7: Field-Replaceable Units
Hot-Pluggable FRUsHot-Removable and Hot-Insertable FRUs
•
Routing and Control Boards
(RCB) (nonredundant)
•
Master RCB (if nonstop active
routing is not configured)
•
Backup RCB (if redundant)
•
Master RCB (if nonstop active routing is
configured)
•
Modular Port Concentrators (MPCs)
•
Modular Interface Cards (MICs)
NOTE: MIC installed in MPC slot 1.
•
Power supply modules (if redundant)
•
Fan modules (if redundant)
•
Air filter unit
24
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