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Step 4
Step 5
Step 6
Removing and Replacing a Clock and Scheduler Card or
Switch Fabric Card
The Cisco 12012 supports a maximum of two clock and scheduler cards and three switch
fabric cards in the lower card cage. You must power down the Cisco 12012 when you
remove and replace a clock and scheduler card. The Cisco 12012 can remain powered up
when you remove and replace a switch fabric card.
The lower card cage is located directly behind the air filter tray and an air deflector. When
you access the lower card cage, you must first lower the air filter tray, then raise and secure
the air deflector.
Remove a clock and scheduler card or a switch fabric card according to the procedures in
the section "Removing the Cards from the Lower Card Cage" in the chapter "Installing a
Cisco 12012."
Install a clock and scheduler card (Product Number GSR12-CSC=) or a switch fabric card
(Product Number GSR12-SFC=) according to the procedures in the section "Replacing the
Cards in the Lower Card Cage" in the chapter "Installing a Cisco 12012."
If you plan to return the old clock and scheduler card or switch fabric card to the factory,
repackage it in the shipping container you received with the replacement card.
Upgrading RP and Line Card Memory
The Cisco 12000 Series Gigabit Switch Router Memory Replacement Instructions
(78-4338-xx), which is available on-line and on the Cisco CDROM, contains the latest
information about memory requirements and replacing memory on the Cisco 12000 series
RPs and line cards. Refer to that document before replacing or adding memory to your RP
or line card.
Removing and Replacing a Clock and Scheduler Card or Switch Fabric Card
Carefully push on the top and bottom of the alarm card to seat it in the backplane
connector.
Tighten the two captive screws to secure the alarm card in the card slot.
Connect any external devices to their respective connectors on the alarm card.
Maintaining the Cisco 12012 7-45
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Troubleshooting
