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Chapter 9
Installing Field Replaceable Units
This chapter includes the following topics:
■ Replacing a Power Supply on page 53
Replacing a Power Supply
The following procedure applies to models for which the power supply is a field
replaceable unit (FRU). For information on obtaining spares, contact your Juniper
Networks sales representative.
To remove a power supply:
1. Go to the back of the device and locate the power supply you want to remove.
2. Locate the horizontal handle and the red lever in the upper left corner of the
power supply.
3. Lift the handle and push the lever to the right to unlatch the power supply.
4. With the lever pushed to the right, pull on the handle firmly to dislodge the power
supply from its seating.
5. Let go of the lever and slide out the power supply from the handle.
6. Let go of the handle and use both hands to slide the power supply the rest of the
way out.
To install a power supply:
1. Take the new power supply to the back of the device.
2. Hold the power supply with both hands with the red handle on the left side of
the power supply.
3. Align the power supply with the empty bay and slide the power supply into the
bay.
4. Push firmly until you see and hear the red lever snap into place.
If the other power supply is on and powering the appliance, the appliance emits
a high-pitched whine and the power supply LED turns on.
5. Connect a power cord to the new power supply.
6. Attach the other end of the power cord to the power source.
Replacing a Power Supply ■ 53