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Cisco 12012 Gigabit Switch Router Switch Fabric Cards Replacement Instructions 9
Removing and Replacing a Card in the Lower Card Cage
Step 4 To access the cards in the lower card cage, you must first move the air deflector up, out
of the way. Pivot the air deflector up and secure it to the top of the lower card cage by
turning the air deflector latch knob counterclockwise. (Refer to Figure 4.)
Figure 4 Securing the Air Deflector in the Lower Card Cage
Caution
Securing the air deflector in the up position blocks the airflow to the upper card cage. Do
not latch the air deflector in the up position in a running system for extended periods of time. An
overtemperature condition in the upper card cage can occur.
H10473
GIGABIT ROUTE PROCESSOR
Q OC-3/STM-POS
OC-12/STM-4 ATM
OC-12/STM-4 POS
ALARM
CSC
0
FAIL
1
0
1
2
ENABLED
SFC
Air deflector
latch
Air filter
tray
Air deflector