Cisco Systems WS-X6608-T1 用户手册
3-21
Cisco Cat alyst 4900M Sw itch Instal lation Guid e
78-18350-02
Chapter 3 Installi ng t he Switch
Removing and Repl acing the Fan Assemb ly
Step 11
Press the power s witch to th e on (| ) positio n.
Step 12
Verify power sup ply operation by ch ecking the power sup ply’s front-panel LEDs. You shou ld see the
following:
following:
•
The LED labeled INPUT OK is green.
•
The LED labeled OUTPUT OK is green.
Step 13
Check the power sup ply and system status from th e system console b y entering show power co mmand .
Fo r more information on this comman d, refer to the command reference pu blication for yo ur switch.
Fo r more information on this comman d, refer to the command reference pu blication for yo ur switch.
Step 14
If th e LEDs or show power command outp ut in dicate a power problem or other sy stem problem, see
for more in formatio n.
Removing and Replacing the Fan Assembly
This sectio n d escrib es how to remove an d install the fan assembly.
Required Tools
You will need a Phillips screwdriver for the following two procedu res.
Removing the Fan Assembly
Warning
When removi ng the fan tray, keep your hands and fingers away from the spinning fan blades. Let the
fan blades completely stop before you remove the fan tray. Statement 258
fan blades completely stop before you remove the fan tray. Statement 258
Caution
Never operate the system for an extended period if the fan assembly is removed or if it is not functioning
pro perly. An over-temp eratu re con dition can cause severe eq uipment damage.
pro perly. An over-temp eratu re con dition can cause severe eq uipment damage.
To remove the existing fan assemb ly, perfo rm the followin g s teps:
Step 1
Loos en the two captive in stallation screws on the fan assembly by turn ing them counterclockwise.
Step 2
Grasp the fan as sembly with both hands an d pull it ou tward; gently move it side to s id e if necess ary to
unseat it from the backplane. Slide it out of th e chass is and place it in a safe place.
unseat it from the backplane. Slide it out of th e chass is and place it in a safe place.