Removing and Replacing Components
Removing and Replacing Components
Removing and Replacing Components
You can replace internal power supplies and fan modules, as needed, while the switch is operating ("hot
swapping").
For each switch, ensure that all installed power supplies and fan modules have the same the airflow
direction: either front-to-back or back-to-front.
Follow the procedures in this section to remove and replace power supplies and fan modules, and to
remove a switch from a rack.
Replacing Internal Power Supplies
You can replace internal power supplies as needed while the switch is operating ("hot swapping").
All installed power supplies must have the same airflow direction (front-to-back or back-to-front) and
must also match the airflow direction of the fan modules.
To replace one or both AC internal power supplies in an SLX 9150 or SLX 9250 switch, follow the steps
in
Installing a 750 W Internal AC Power Supply
To replace one or both DC internal power supplies in an SLX 9150 or SLX 9250 switch, follow the steps
in
Installing a 750 W Internal DC Power Supply
on page 53.
Replacing Fan Modules
You can replace fan modules as needed while the switch is operating ("hot swapping").
All installed fan modules must blow air in the same direction and must match the airflow direction of
the installed power supplies.
•
If the switch's fan tray has a red tab, the airflow is front-to-back. Use a fan module labeled Air Out.
•
If the switch's fan tray has a blue tab, the airflow is back-to-front. Use a fan module labeled Air In.
Note
The operating-system software cannot display the airflow direction.
ExtremeSwitching SLX 9250 Hardware Installation Guide
65
