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Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Chapter 7 Maintaining the Router
Cleaning or Replacing the Chassis Air Filter
Step 2
Lift up the air filter and carefully slide it out the door (
Figure 7-11
).
Caution
Be careful not to damage the honeycomb screens on the back of the
air filter door and in the fabric card cage. Damage to the honeycomb
screens can restrict airflow, cause overheating, and affect EMI
performance.
Figure 7-11 Removing the Chassis Air Filter
ALARM
CS
C
0
FA
IL
1
0
1
2
ENAB
LED
SFC
Q OC-3/STM-POS
6DS3–SMB P
/
H
/
F
12DS3–SMB P
/
H
/
F
RX
TX
11
RX
OC-48/STM-16-SCPOS
OC-12/STM-4 A
T
M
F
A
ST ETERNET
R
OUTE PR
OCESSOR
27960
Air filter
Push filter up
with palm
and fingertips