Extreme networks 17001 Manuale Utente
Summit Family Switches Hardware Installation Guide
145
To remove a Summit X480 DC PSU:
1
De-energize the DC circuit.
2
Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to an appropriate
ground point on the rack.
ground point on the rack.
3
Disconnect the DC power cables as follows:
a
Pull the cover off the terminal block.
b
Loosen the screws that secure the cable terminals to the terminal block.
c
Slide the wires out from under the captive washers.
4
Disconnect the ground wire as follows:
a
Loosen the screw that secures the ground wire to the terminal block.
b
Slide the wire out from under the captive washer.
5
Push the latching tab to the right as you pull outward on the handle to disengage the PSU internal
connectors (see
connectors (see
Figure 118: Removing a DC PSU
6
Carefully slide the PSU the rest of the way out of the switch.
7
If a replacement PSU will not be installed, install a cover over the unoccupied power supply bay.
NOTE
Unoccupied power supply bays must always be covered to maintain proper system ventilation and EMI levels.
Leave the ESD strap permanently connected to the switch, so that the strap is always available when
you need to handle ESD-sensitive components.
you need to handle ESD-sensitive components.
Removing a Mid-Mounted Switch from a Two-Post Rack
Removing a mid-mounted Summit X480 switch from a rack requires two people to maneuver the switch
and disconnect the mounting hardware.
and disconnect the mounting hardware.
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