Upgrading The Rear Fan Tray In A T640 Router Before Integrating The Router Into A Routing Matrix; Preparing The T640 Router For Graceful Switchover; Matrix - Juniper TX MATRIX Hardware Manual

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Upgrading the Rear Fan Tray in a T640 Router Before Integrating the Router into a
Routing Matrix
Related
Documentation

Preparing the T640 Router for Graceful Switchover

Copyright © 2010, Juniper Networks, Inc.
PIC 3 QGE 1/3
...
If the field is not 6.4.18 or later for any FPC, you must upgrade the firmware
Current version
for that FPC.
Overview of Converting a T640 Router on page 161
To replace the rear fan tray:
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis.
Replace the rear fan tray with the model required for a converted T640 router. Use
2.
the standard replacement procedure described in the T640 Core Router Hardware
Guide. To display the status of the fans in the router, issue the
command. The output is similar to the following:
user@host> show chassis environment
...
Rear Tray Top fan
Rear Tray Second fan
Rear Tray Third fan
Rear Tray Fourth fan
Rear Tray Fifth fan
Rear Tray Sixth fan
Rear Tray Seventh fan
Rear Tray Bottom fan
...
CAUTION: To maintain proper cooling, do not operate the T640 router
with the rear fan tray removed for more than 1 minute.
Overview of Converting a T640 Router on page 161
TX Matrix Preventing Electrostatic Discharge Damage on page 298
If you are integrating an operational T640 router with the TX Matrix router, you must
prepare the T640 router for graceful switchover. If you are integrating an offline T640
router with the TX Matrix router, this procedure is optional.
NOTE: We recommend that you run Junos OS Release 7.3 or later on the
TX Matrix router to support graceful switchover.
Chapter 19: Converting a T640 Router
1 4
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK Spinning at normal speed
OK
show chassis environment
165