CHAPTER 16
Replacing Power Supply
•
Installing a Power Supply in an ACX5000 Router on page 137
•
Removing a Power Supply from an ACX5000 Router on page 138
Installing a Power Supply in an ACX5000 Router
The power supplies 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.
•
Before you install a power supply in a ACX5000 router, ensure that you have taken the
necessary precautions to prevent electrostaticdischarge (ESD) damage (see Prevention
of Electrostatic Discharge Damage).
•
Ensure that the airflow direction of the power supply is the same as the chassis. Labels
on the power supply handle indicate the direction of airflow. See “Cooling System and
Airflow in an ACX5000 Router” on page 33 for more information.
To install a power supply in an ACX5000 router (see Figure 48 on page 138 and
Figure 49 on page 138):
1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
point on the chassis.
2. Taking care not to touch power supply components, pins, leads, or solder connections,
remove the power supply from its bag.
CAUTION: Verify that the direction of the arrow on the power supply
handle matches the direction of airflow in the chassis. Ensure that each
power supply you install in the chassis has the same airflow direction. If
you install power supplies with two different airflow directions, Junos OS
raises an alarm, and the status (ALM) LED blinks amber.
3. Using both hands, place the power supply in the power supply slot on the FRU panel
of the router and slide it in until it is fully seated and the locking lever slides into place.
137Copyright © 2015, Juniper Networks, Inc.
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