CHAPTER 21
Overview of Installing and Replacing
Components
•
M7i Field-Replaceable Units (FRUs) on page 135
•
Tools and Parts Required to Replace M Series Hardware Components on page 136
M7i 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 down the router or disrupting the routing functions.
•
Hot-pluggable FRUs—You can remove and replace these components without powering
down the router, but the routing functions of the system are interrupted when the
component is removed.
Table 57 on page 135 lists the FRUs for the M7i router.
Table 57: Field-Replaceable Units
Hot-Pluggable FRUsHot-Removable and Hot-Insertable FRUs
•
Compact Forwarding Engine Board (CFEB)
(when swapping for an existing CFEB)
•
Enhanced Compact Forwarding Engine Board
(CFEB-E) (when swapping for an existing
CFEB-E)
•
Routing Engine
•
Fan tray
•
Physical Interface Card (PIC)
•
Power supply
Related
Documentation
Replacing the M7i Fan Tray on page 137•
• Replacing an M7i PIC on page 159
• Replacing an M7i AC Power Supply on page 177
• Replacing a DC Power Supply on page 171
• Replacing, Upgrading, and Downgrading the M7i CFEB and CFEB-E on page 183
135Copyright © 2019, Juniper Networks, Inc.