Replacing The M320 Router Hardware Components; M320 Fru Description - Juniper M320 Hardware Manual

CHAPTER 13
Replacing the M320 Router Hardware
Components

M320 FRU Description

Copyright © 2010, Juniper Networks, Inc.
M320 FRU Description on page 137
Tools and Parts Required to Replace the M320 Hardware Components on page 138
Replacing the M320 CIP on page 140
Replacing an M320 Air Filter on page 148
Replacing an M320 Fan Tray on page 153
Replacing an M320 Craft Interface on page 158
Replacing M320 Host Subsystem Components on page 160
Replacing an M320 CB on page 163
Replacing an M320 Routing Engine on page 166
Replacing a DIMM Module in an M320 Routing Engine on page 168
Inserting or Removing a PC Card from an M320 Routing Engine on page 170
Replacing an M320 SIB on page 172
Replacing M320 Packet Forwarding Engine Components on page 174
Replacing M320 Power System Components on page 193
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
down the router, but the routing functions of the system are interrupted when the
component is removed.
Before you replace a CB or a Routing Engine, you must take the host subsystem offline.
Table 22 on page 138 lists the FRUs for the M320 router.
137