Removing and Replacing a Card Cage Assembly
Step 3 Loosen the two captive screws at the top and bottom of the alarm card. (Refer to Figure 8a.)
Note Unlike the line cards and RP, the alarm card does not have card ejector levers. The alarm card backplane connector is smaller, has fewer pins, and is easier to seat and unseat than the line cards and the RP.
Step 4 Using a
Step 5 Grasp the card carrier edge with one hand and place your other hand under the carrier to support it (refer to Figure 8b.) Slide the alarm card out of the card slot and place it immediately on the antistatic mat.
Figure 8 Removing an Alarm Card
a Loosen captive screws
bGrasp card carrier to slide card out of slot
Upper card cage 
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ALARM | 1 | CSC | H10906 |
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Alarm card
Removing the Cards From the Lower Card Cage
The lower card cage is located directly behind the air filter tray and an air deflector. To access the lower card cage, you must first lower the air filter tray and raise and secure the air deflector.
Perform the following steps to remove the clock and scheduler cards and the switch fabric cards from the lower card cage:
Step 1 Attach an antistatic wrist strap to yourself and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
16Cisco 12012 Gigabit Switch Router Card Cage Assembly Replacement Instructions
