Technical Documentation

Removing a Power Supply from an EX4500 Switch

The power supply in EX4500 switches is a hot-removable and hot-insertable field-replaceable unit (FRU): You can remove and replace it without powering off the switch or disrupting switch functions.

Before you begin removing a power supply from the switch:

Ensure that you have the following parts and tools available to remove the power supply from the switch chassis:

  • An antistatic bag or an antistatic mat
  • Replacement power supply or a cover panel for the power supply slot

Caution: Do not leave the power supply slot empty for a long time while the switch is operational. Either replace the power supply promptly or install a cover panel over the empty slot.

To remove a power supply from the switch (see Figure 1):

  1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  2. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  3. Disconnect power from the switch by performing one of the following tasks:
    • If the AC power source outlet has a power switch, set it to the OFF (0) position.
    • If the AC power source outlet does not have a power switch, gently pull out the male end of the power cord connected to the power source outlet.
  4. Turn the adjustment nut of the power cord retainer counterclockwise till you can see the power cord. Pull the power cord from the slot in the adjustment nut.
  5. Remove the female end of the power cord from the AC appliance inlet on the power supply faceplate.
  6. Push the power cord retainer clip to one side of the appliance inlet. Squeeze the two sides of the power cord retainer clip, and pull the L-shaped ends of the clip from the holes on each side of the AC appliance inlet to completely remove the power retainer clip.
  7. Push the ejector lever 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.
  11. If you are not replacing the power supply, install the cover panel over the slot.

Figure 1: Removing a Power Supply from an EX4500 Switch

Image g020835.gif


Published: 2010-05-27

Help
|
My Account
|
Log Out