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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions
78-16083-02
Prerequisites and Preparation
Preventing Electrostatic Discharge Damage
Many router components can be damaged by static electricity. Not exercising the proper electrostatic
discharge (ESD) precautions can result in intermittent or complete component failures. To minimize the
potential for ESD damage, always use an ESD-preventive antistatic wrist strap (or ankle strap) and
ensure that it makes good skin contact.
Note You should periodically check the resistance value of the ESD-preventive strap. Ensure the measurement
is between 1 and 10 megohms.
Before performing the procedures in this guide, attach an ESD-preventive strap to your wrist and connect
the leash to the chassis or to another grounded, bare metal surface as shown in Figure 1.
Figure 1 Connecting an ESD-Preventive Wrist Strap to the Chassis
ALARM
ENABLED
FAIL
ACO/LT
ALARM
CSC
0
FAIL
1
0
1
2
ENABLED
CRITICAL
MAJOR
MINOR
SFC
ACTIVE
0
CARRIER
RX PKT
ACTIVE
1
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RX PKT
ACTIVE
2
CARRIER
RX PKT
ACTIVE
3
CARRIER
RX PKT
Q OC-3/STM-POS
6DS3–SMB P
/
H
/
F
DOWN
LOOP RA LA
CDHNT CD
TX
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12DS3–SMB P
/
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DOWN
LOOP RA LA
CDHNT CD
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ACTIVE
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RX PKT
OC-48/STM-16-SCPOS
ACTIVE
0
CARRIER
RX CELL
OC-12/STM-4 ATM
FAST ETERNET
SLOT-0
ROUTE PROCESSOR
SLOT-1
COLL
LINK
TX
RX
RJ-45
MII
RESET
AUX
CONSOLE
EJECT
SLOT-0
ROUTE PROCESSOR
SLOT-1
COLL
LINK
TX
RX
RJ-45
MII
RESET
AUX
CONSOLE
EJECT
FAST ETERNET
ACTIVE
0
CARRIER
RX CELL
OC-12/STM-4 ATM
ACTIVE
CARRIER
RX PKT
OC-48/STM-16-SCPOS
12DS3–SMB P
/
H
/
F
DOWN
LOOP RA LA
CDHNT CD
TX
0
RX
TX
1
RX
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RX
6DS3–SMB P
/
H
/
F
DOWN
LOOP RA LA
CDHNT CD
TX
0
RX
TX
1
RX
TX
2
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TX
3
RX
TX
4
RX
TX
5
RX
ACTIVE
0
CARRIER
RX PKT
ACTIVE
1
CARRIER
RX PKT
ACTIVE
2
CARRIER
RX PKT
ACTIVE
3
CARRIER
RX PKT
Q OC-3/STM-POS
ALARM
ENABLED
FAIL
ACO/LT
ALARM
CSC
0
FAIL
1
0
1
2
ENABLED
CRITICAL
MAJOR
MINOR
SFC
O
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26208
ESD
connection
socket