Replacing Cooling System Component; Installing A Fan Module In An Acx5000 Router - Juniper ACX5048 Manual

CHAPTER 15

Replacing Cooling System Component

Installing a Fan Module in an ACX5000 Router

Copyright © 2015, Juniper Networks, Inc.
Installing a Fan Module in an ACX5000 Router on page 133
Removing a Fan Module from an ACX5000 Router on page 134
The fan modules in an ACX5000 router are hot-removable and hot-insertable field
replaceable units (FRUs): you can remove and replace them without powering off the
router or disrupting routing functions.
CAUTION: Replace a failed fan module with a new fan module within 1 minute
of removal to prevent chassis overheating. Before removing the fan module,
ensure you have a replacement fan module at hand.
NOTE: The fan module provides port-to-FRU airflow (AFO).
Before you install a fan module in a ACX5000 router, ensure that you have taken the
necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention
of Electrostatic Discharge Damage).
To install a fan module in an ACX5000 router (see
Figure 45 on page 134):
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
1.
point on the chassis.
Taking care not to touch the connectors, remove the fan module from its bag.
2.
Align the module with the open slot on the management panel of the chassis and
3.
slide it in until it is fully seated.
CAUTION: Damage can occur if you attempt to install a fan module into
a chassis with a different airflow direction. Compare the router product
SKU with the airflow marking on the handle to ensure that you are installing
a fan module with the same airflow direction as the chassis. The fan
Figure 44 on page 134 and
133