Specifications

15
Cisco 12016, Cisco 12416, and Cisco 12816 Router Clock and Scheduler, Switch Fabric, and Alarm Card Replacement Instructions
OL-13811-01
Removing and Installing Switch Fabric Cards
Step 6 Close and fasten the air filter door as follows:
a. Pivot the air filter door up so that it is aligned with the opening of the switch fabric card cage and
the four guide pins are inserted in the corresponding holes on each side of the switch fabric card
cage (Figure 7).
Caution All four sides of the air filter door are lined with EMI-preventive gaskets consisting of many raised,
conductive contacts. Align and seat the door carefully to avoid damaging the EMI-preventive gasket
contacts. A damaged gasket can result in reduced EMI performance.
b. Push firmly on the air filter door until it is seated in the opening of the switch fabric card cage, then
tighten the four captive screws.
Caution The air filter door must be closed and secured at all times to maintain correct EMI performance.
Figure 7 Closing the Chassis Air Filter Door
ALARM
C
SC
0
FA
IL
1
0
1
2
ENA
BLED
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 ATM
FAST ETERNET
ROUTE PROCESSOR
27962
Switch fabric
card cage
(behind filter door)
Air filter
door
Guide pin
Air filter
Captive scre
w
Captive screw
s
(2 on each sid
e