Technical Documentation

Installing a Power Supply in 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 install an AC power supply in the switch:

Note: Each power supply must be connected to a dedicated power source outlet.

To install a power supply in the switch (see Figure 1):

  1. Ensure that you have the correct power supply. The color of the power supply's ejector lever must match the color of the intake or exhaust labels visible through the fan tray vents. See AC Power Supply in EX4500 Switches.

    Caution: Operating the switch with an incorrect power supply might cause the chassis to overheat.

  2. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  3. If the power supply slot has a cover panel on it, pull the handle of the cover panel outwards and remove it. Save the cover panel for later use.
  4. Taking care not to touch power supply pins, leads, or solder connections, remove the power supply from the bag.
  5. Using both hands, place the power supply in the power supply slot on the rear panel of the switch and slide it in until it is fully seated. You will hear a distinct click sound when the power supply is fully seated n the chassis.

Figure 1: Installing a Power Supply in an EX4500 Switch

Image g020832.gif

Note: If you have a Juniper J-Care service contract, register any addition, change, or upgrade of hardware components at https://www.juniper.net/customers/csc/management/updateinstallbase.jsp. Failure to do so can result in significant delays if you need replacement parts. This note applies if you change the type of power supply or add a new type of uplink module. It does not apply if you replace these components with the same type of component.


Published: 2010-05-27

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