
Maintaining the Cisco 12008 7-39
Removing and Replacing the Fan Trays
The Cisco 12008 supports online insertion and removal of field-replaceable units (FRUs);
thus, you can remove and replace a fan tray while the rest of the system remains powered
up and fully operational.
Note
If you replace a defective fan tray while the router is running, you must do so quickly
to minimize the risk of overheating router components. The system shuts down
approximately 2 minutes after reaching the shutdown temperature threshold; therefore, you
should replace a defective fan tray within this time span.
You will need the following tools and parts to remove or install a fan tray:
•
1/4-inch flat-blade screwdriver
•
ESD-preventive wrist strap
•
Lower card cage fan tray—product number GSR8-SYSBLOWER=
•
Power supply fan tray—product number GSR8-PWRBLOWER=
Removing the Fan Tray from the Lower Card Cage
To remove the fan tray from the lower card cage, perform the following steps.
Step 1
Loosen the two panel fastener screws on each side of the air filter assembly (see
Figure 7-10); remove the assembly to expose the interior of the lower card cage
and set it aside.
Step 2
Loosen the two captive installation screws at the sides of the fan tray.
Step 3
With one hand, grasp the ring-shaped insertion/extraction tab in the middle of
the fan tray carrier; gently slide the fan tray halfway out of the guide rails to
disengage the fan tray connector from the backplane (see Figure 7-10).
Step 4
Place your free hand beneath the fan tray to support its weight and slide the
module completely out of the card cage.
Step 5
Set the fan tray aside.
Содержание 12008
Страница 4: ......
Страница 12: ...Cisco 12008 Gigabit Switch Router Installation and Configuration Guide xii ...
Страница 22: ...Obtaining Technical Assistance Cisco 12008 Gigabit Switch Router Installation and Configuration Guide xxii ...
Страница 102: ...Agency Approvals Cisco 12008 Gigabit Switch Router Installation and Configuration Guide 1 80 ...
Страница 132: ...Using a Site Log Cisco 12008 Gigabit Switch Router Installation and Configuration Guide 2 30 ...