Replacing A T640 Routing Engine; Removing A T640 Routing Engine; Figure 148: Installing An Lcc-Cb - Juniper T640 Hardware Manual

Replacing a T640 Routing Engine

Copyright © 2013, Juniper Networks, Inc.

Figure 148: Installing an LCC-CB

To replace a Routing Engine, perform the following procedures:
1. Removing a T640 Routing Engine on page 265
Installing a T640 Routing Engine on page 267
2.

Removing a T640 Routing Engine

The router can have one or two Routing Engines. They are located in the upper rear of
the chassis in the slots marked
2.4 lb (1.1 kg).
To remove a Routing Engine:
Take the host subsystem offline as described in
1.
Offline" on page 256.
CAUTION: Before you replace a Routing Engine, you must take the host
subsystem offline. If the Routing Engine to be replaced is currently
functioning as the master Routing engine, switch it to be the backup before
taking the host subsystem offline. If there is only one host subsystem,
taking the host subsystem offline shuts down the router.
Place an electrostatic bag or antistatic mat on a flat, stable surface.
2.
Chapter 17: Replacing T640 Router Hardware Components
RE0 and RE1 . Each Routing Engine can weigh up to
"Taking the T640 Host Subsystem
265