Extreme Networks BlackDiamond 12800 Series, Hardware Installation Manual

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Extreme Networks 1200 W DC PSU
BlackDiamond 12800 Series Switches Hardware Installation Guide
79
Removing an Extreme Networks 1200 W DC PSU
CAUTION
The DC PSU may be hot to the touch; use thermal protective gloves when handling the 1200 W DC PSU during
removal.
To remove an Extreme Networks 1200 W DC PSU:
1 Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to the ground
receptacle on the top-left corner of the switch front panel (if not already attached).
2 De-energize the DC circuit for the 1200 W DC PSU that will be removed.
3 Press the yellow lever on the DC PSU to the left while lifting the handle up on the 1200 W DC PSU.
4 Disconnect the cable from the front of the DC PSU by pressing down the catch (see Figure 44 ) and
pulling out the cable.
Figure 44: Disconnecting the Cable from the DC PSU
WARNING!
Always be sure that the 1200 W DC PSU does not have the input cabled connected at any time when the DC PSU
is not installed into the switch. Do not remove the DC PSU from the switch before disconnecting the input DC cable
from the PSU.
5 Pull on the handle of the 1200 W DC PSU to slide it out of the power supply bay.
6 Wearing thermal protection gloves, place both hands underneath the 1200 W DC PSU to support the
weight after it is pulled out from the switch.
To remove additional 1200 W DC PSUs, repeat steps 2 through 6.
NOTE
Leave the ESD strap permanently connected to the switch, so that the strap is always available when you need to
handle ESD-sensitive components.
EX_133
Squeeze catch
to release plug