Installing a Power Supply in 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.
Ensure you have the following parts and tools available to install a power supply in an EX 3200 or EX 4200 switch chassis:
- Electrostatic discharge (ESD) grounding strap
- Phillips (+) screwdriver, number 2
Before you begin installing a power supply in an EX 3200 or EX 4200 switch, ensure that you have taken the necessary precautions to prevent ESD damage (see Preventing Electrostatic Discharge Damage).
To install a power supply in an EX 3200 or EX 4200 switch (see Figure 1):
- Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
- Taking care not to touch power supply components, pins, leads, or solder connections, remove the power supply from its bag.
- Loosen the locking lever screw on the left front of the power supply by using the Phillips (+) screwdriver, number 2.
- Push down on the locking lever until it is in its lowest position.
- 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.
Note: The handle on the 320 W AC power supply is at the bottom of the power supply faceplate, while the handle on the 600 W and the 930 W AC power supplies is at the top of the faceplate. The handle on the 190 W DC power supply runs across the faceplate.
- Push the locking lever up to its highest position (this action might pull the power supply in).
- Tighten the locking lever screw by using the Phillips (+) screwdriver, number 2.
Figure 1: Installing a Power Supply in an EX 3200 or EX 4200 Switch
Note: Each power supply must be connected to a dedicated power source outlet.
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.