Juniper Ex SERIES Quick start guide

Brand: Juniper

Model: Ex SERIES

Type: Quick start guide

Removing a Power Supply from an EX-series Switch

The power supply in EX 3200 and EX 4200 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 an EX 3200 or EX 4200 switch,

ensure that you have taken the necessary precautions to prevent ESD damage (see

Prevention of Electrostatic Discharge Damage on EX-series Switches).

Ensure you have the following parts and tools available to remove a power supply

from an EX 3200 or EX 4200 switch chassis:

■ Electrostatic discharge (ESD) grounding strap

■ Phillips (+) screwdriver, number 2

■ An antistatic bag or an antistatic mat

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 a power supply from an EX 3200 or EX 4200 switch (see

Figure 1 on page 2):

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 to the switch by performing one of the following:

■ AC power supply—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.

■ DC power supply—Switch the circuit breaker on the panel board that services

the DC circuit to the OFF position.

4. Remove the power source cable from the power supply faceplate:

■ AC power supply—Gently pull out the female end of the power cord

connected to the power supply faceplate.

■ DC power supply—Remove the screws securing the ring lugs attached to

the power source cables to the power supply using the

Phillips (+) screwdriver, number 2, and remove the power source cables

from the power supply. Replace the screws on the terminals and tighten

them.

5. Loosen the locking lever screw on the left front of the power supply by using the

Phillips (+) screwdriver, number 2.

6. Push down on the locking lever until it is in its lowest position.

Removing a Power Supply from an EX-series Switch ■ 1

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 antistatic bag or on the antistatic mat placed on

a flat, stable surface.

Figure 1: Removing a Power Supply from an EX 3200 or EX 4200 Switch

Related Topics ■ Installing a Power Supply in an EX 3200 or EX 4200 Switch

■ Installing and Removing EX 3200 and EX 4200 Switch Hardware Components

■ Power Supply in EX-series Switches

■ Field-Replaceable Units in EX 3200 and EX 4200 Switches

■ AC Power, Connection, and Power Cord Specifications—EX 3200 and EX 4200

Switches

■ Rear Panel of an EX 3200 Switch

■ Rear Panel of an EX 4200 Switch

2 ■ Removing a Power Supply from an EX-series Switch

Juniper Ex SERIES Quick start guide

Juniper Ex SERIES Quick start guide

Juniper Ex SERIES Quick start guide

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