21
Removing a fan tray
WARNING!
Take out the fan tray after the fans completely stop rotating. To avoid an unbalanced fan causing loud
noise, do not touch the fans, even if they are not rotating.
To remove a fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Loosen the captive screw of the fan tray with a Philips screwdriver until it is fully disengaged
from the switch chassis.
3.
Grasp the handle of the fan tray with one hand and pull the fan tray part way out the slot.
Support the fan tray bottom with the other hand, and pull the fan tray slowly along the guide
rails out of the slot. Put the removed fan tray in an antistatic bag for future use.
Installing/removing a power supply
The switches come with both power supply slots covered by filler modules. You can install one or two
power supplies as needed. For more information about the power supplies available for the switches,
see "
Appendix B FRUs and compatibility matrixes
."
Installing a power supply
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Remove the power filler module from the power supply slot.
3.
Unpack the power supply and check that the power supply model is correct.
4.
Correctly orient the power supply with the power supply slot (see
Figure 23
and
Figure 24
),
grasp the handle of the module with one hand and support the module bottom with the other,
and slide the module slowly along the guide rails into the slot. Follow the forward inertia of the
power supply when inserting it into the chassis to ensure that the power supply has firm contact
with the connectors on the backplane.
5.
To prevent damage to the connectors inside the switch chassis, insert the power supply gently. If
you encounter resistance while inserting the power supply, pull out the power supply and insert
it again. If you cannot insert the power supply into the slot, re-orient the power supply rather
than use excessive force to push it in.
Figure 23
Installing a power supply (for the 48G model/48G TAA model)
