Extreme x250e-24t Installation Instruction

Summit Family Switches Hardware Installation Guide

In a redundant power configuration, you can replace one Summit X650 DC PSU without powering 
down the switch.

You need the following tools and materials to replace a Summit X650 DC PSU:

●

#1 Phillips screwdriver

●

Torque screwdriver and wrench or torque driver with attachments for tightening screws and nuts 

●

ESD-preventive wrist strap

●

Thermal protective gloves (required for removal of a PSU)

Be sure to disconnect all power cables before you disconnect the chassis ground wire.

To remove an installed Summit X650 DC PSU:

De-energize the DC circuit.

Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to an appropriate 
ground point on the rack.

Disconnect the DC power cables as follows:

Slide the cover off the terminal block.

Loosen the screws that secure the cable terminals to the terminal block.

Slide the wires out from under the captive washers.

Disconnect the ground wire as follows:

Remove the screw that secures the ground wire to the PSU.

Move the wire away from the PSU.

Push the latching tab to the left as you pull outward on the handle to disengage the PSU internal 
connectors (see 

SH_113