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Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Chapter 1 Product Overview
Blower Module
OK—Left LED; Green. When on, this LED indicates that the blower module
is operating normally. This LED should come on as soon as the blower
module is installed and receives power from the backplane connector.
FAIL—Right LED; Red. The red LED should remain off during normal
operation. If the red LED is on, the system has detected a fan failure or other
fault in the blower module. Replace the existing blower module with a spare.
Air Filters
Cisco 12006 and Cisco 12406 routers are equipped with two user-serviceable air
filters. (See Figure 1-18.)
Figure 1-18 Air Filter Locations
57678
SLOT
-0
GIGABIT ROUTE PROCESSOR
SLOT
-1
COLL
LINK
TX
RX
RJ-45
MII
RESET
AUX
EJECT
CONSOLE
CISCO 12000
SERIES
GIGABIT SWITCH ROUTER