Juniper EX4300 Series Hardware Manual page 310
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Also See for EX4300 Series:
- Hardware manual (354 pages) ,
- Quick start manual (11 pages) ,
- Manual (9 pages)
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• Ensure you understand how to prevent electrostatic discharge (ESD) damage. See
Electrostatic Discharge Damage
Ensure that you have the following parts and tools available to remove the power supply from the
switch chassis:
• ESD grounding strap
• Phillips (+) screwdriver, number 2
• An antistatic bag or an antistatic mat
• Replacement power supply or a cover panel for the power supply slot
The power supply in EX4300 switches is a hot-removable and hot-insertable field-replaceable unit (FRU)
installed in the rear panel of the switch: You can remove and replace it without powering off the switch
or disrupting switch functions.
CAUTION: We recommend that you install either a replacement power supply or a
cover panel in the empty power supply slot to prevent chassis overheating and dust
accumulation.
NOTE: The power supply slots are at the right end of the rear panel on 24-port and 48-port
switches, and at the left end on 32-port switches.
DC power supply from 24-port or 48-port switches. The procedure is the same for 32-port
switches.
1.
Place the antistatic bag or the antistatic mat on a flat, stable surface.
2.
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
3.
Make sure that the voltage across the DC power source cables leads is 0 V and that there is no
chance that the cables might become active during the removal process.
4.
Remove the plastic cover from the input terminals by sliding the cover either to the left or right.
5.
Unscrew the locking screws counterclockwise by using the screwdriver.
6.
Remove the cable lugs from the input DC terminals.
7.
Slide the ejector lever toward the left until the power supply is unseated.
8.
Grasp the power supply handle and pull firmly to slide the power supply halfway out of the chassis.
9.
Taking care not to touch power supply pins, leads, or solder connections, place one hand under the
power supply to support it. Grasp the power supply handle with your other hand and pull the
power supply completely out of the chassis.
10. Place the power supply in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
.
Figure 90 on page 301
Prevention of
shows how to remove a
300
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