Removing an AC Power Supply from an EX-series Switch

The AC power supply in EX-series switches is a hot-removable and hot-insertable field-replaceable unit (FRU) located on the rear panel.

Ensure you have the following tools and parts available:

• Electrostatic discharge (ESD) grounding strap
• Phillips (+) screwdriver, number 2
• An electrostatic bag or antistatic mat

Ensure you understand how to prevent ESD damage (see Preventing Electrostatic Discharge Damage).

Caution: Do not leave the power supply slot empty for a long time while the switch is on. The power supply must remain in the chassis for proper airflow.

To remove an AC power supply from an EX-series switch (see Figure 48):

1. Place an electrostatic bag or antistatic mat on a flat, stable surface so you can keep the power supply on it.
2. Attach an 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:
   • 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 the power source outlet.
4. Remove the power cord from the AC appliance inlet on the AC power supply faceplate. For instructions on removing the power cord from the AC appliance inlet, see Connecting Power to an EX-series Switch.
5. Loosen the locking lever screw on the left front of the power supply by using a Phillips (+) screwdriver, number 2.
6. Push down on the locking lever until it is in its lowest position.
7. Grasp the power supply handle and pull firmly to slide it halfway out of the chassis.
8. Place one hand under the power supply to support it and slide it completely out of the chassis. Take care not to touch power supply components, pins, leads, or solder connections.
9. Place the power supply in the electrostatic bag or on the antistatic mat.

Figure 48: Removing an AC Power Supply from an EX-series Switch

Related Topics

• Installing an AC Power Supply in an EX-series Switch
• Installing and Removing EX-series Switch Hardware Components
• Power Supply in EX-series Switches
• Field-Replaceable Units in EX-series Switches
• AC Power, Connection, and Power Cord Specifications
• EX 3200 Switch—Rear-Panel Description
• EX 4200 Switch—Rear-Panel Description