Replacing a BlackDiamond PSU/Fan Controller
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
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Figure 138: Installing the fan tray in the BlackDiamond 12802 switch
b Using a #2 Phillips screwdriver, tighten the captive screws by turning them clockwise (see
Figure 138).
Leave the ESD-preventive wrist strap permanently connected to the switch so that the strap will always be available
when you need to handle ESD-sensitive components.
Replacing a BlackDiamond PSU/Fan Controller
Removing the PSU/fan controller causes the switch to stop operation until the controller is replaced. Be sure to have
the replacement controller available before you start the replacement process.
To replace a PSU/fan controller:
1 Attach the ESD-preventive wrist strap to your wrist and connect the metal end to the ground
receptacle on the front top-right corner of the switch.
2 Power off the switch.
3 Remove the installed controller as follows:
a Using a #2 Phillips screwdriver, turn the captive retaining screws counter-clockwise to loosen
them completely.
b Use the handle to pull the controller out of the BlackDiamond 12802 chassis (Figure 139). Set the
controller on an ESD-preventive surface.
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