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Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Chapter 7 Maintaining the Router
Removing and Replacing Blower Modules
If you are replacing an:
•
Original blower module (GSR16-BLOWER=)—Use an original blower
module
or
enhanced capacity blower modules as replacements.
•
Enhanced capacity blower module (12000/10/16-BLWER=)—Use an
enhanced capacity blower module as a replacement.
Note
If you upgraded your router with a power supply upgrade kit (2500 W AC
or 2400 W DC PEMs) and your system is required to meet NEBS
extended temperature range requirements, you must install the enhanced
capacity blower module (12000/10/16-BLWER=) to meet those
requirements.
Caution
You cannot mix original and enhanced capacity blower modules in the same
chassis. Both the upper and lower blower modules must be identical.
The blower modules support online insertion and removal (OIR), so you can
remove and install a blower module while the system remains powered on without
presenting an electrical hazard or damage to the system. You can replace a blower
module while the
system maintains all routing information and ensures session
preservation.
Caution
Although the blower module supports OIR and can be replaced without
interruption to system operation, the system should not operate without a blower
module for more than 3 minutes to prevent overheating.
Upper and Lower Blower Module Orientation
Illustrations in this procedure show the removal and replacement of the upper
blower module. The procedure to replace the lower blower module is the same
except for the orientation of the blower module
.
•
Heads-up orientation—Install the blower module in the upper bay in the
“heads-up” orientation with the three fan air intake openings face down.