Cisco 12016 Guide

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Copyright © 2005 Cisco Systems, Inc. All rights reserved.
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Cisco12016,Cisco12416,andCisco12816Router
Blower Module and Air Filter
Replacement Instructions
Cisco Product Numbers: GSR16-BLOWER=, 12000/10/16-BLWER=, ACS-GSR16-FLTR=
This publication contains removal and replacement procedures for the blower module and chassis air
filter in Cisco 12016, Cisco 12416, and Cisco 12816 routers. Unless otherwise noted, all information in
this publication applies to all router models.
Note The illustrations in this guide represent both the original and newer enhanced capacity blower modules,
and air filters for the Cisco 12016, Cisco 12416, and Cisco 12816 routers. Depending on your system,
these components may not look exactly like those in your chassis, but the removal and replacement
procedures are essentially the same. For clarity, most chassis covers are not shown in the illustrations.
Blower Module Compatibility
There are currently two types of blower modules in use for the Cisco 12016, Cisco 12416, and Cisco
12816 routers; blowers that shipped with original systems, and enhanced capacity blowers that ship with
current systems.
If you are replacing an:
•Original blower module (GSR16-BLOWER=)—Use an original blower module or enhanced
capacity blower modules as replacements.
Caution You cannot mix original and enhanced capacity blower modules in the same chassis. Both the upper and
lower blower modules must be identical.
•Enhanced capacity blower module (12000/10/16-BLWER=)—Use an enhanced capacity blower
module as a replacement.

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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions 78-16083-02
Contents
Contents
The following sections are included in this publication:
•Prerequisites and Preparation, page 2
•Installation Guidelines, page 4
•Removing and Replacing the Blower Modules, page 4
•Troubleshooting the Installation, page 7
•Cleaning or Replacing the Chassis Air Filter, page 7
•Regulatory, Compliance, and Safety Information, page 12
•Obtaining Documentation, page 14
•Obtaining Technical Assistance, page 15
•Obtaining Additional Publications and Information, page 16
Prerequisites and Preparation
Before you perform any of the procedures in this guide, we recommend that you:
•Read the safety and ESD-prevention guidelines in this section.
•Ensure that you have all of the necessary tools and equipment before beginning the installation (see
the “Installation Guidelines” section on page 4).
•Have access to the following documents during the installation:
– Regulatory Compliance and Safety Information for the Cisco 12016, Cisco 12416, and
Cisco 12816 Series Router publication that shipped with the router (PN 78-4347-xx)
– Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
For additional information about obtaining documentation see the “Obtaining Documentation” section
on page 14.
Safety Guidelines
Before you perform any procedure in this publication, review the safety guidelines in this section to
avoid injuring yourself or damaging the equipment.
Safety Warnings
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may
harm you. A warning symbol precedes each warning statement. The following warning is an example of
a safety warning. It identifies the warning symbol and associates it with a bodily injury hazard.
Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. To see translations of the warnings that appear in
this publication, refer to the Regulatory Compliance and Safety Information document that
accompanied this device.

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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
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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions 78-16083-02
Installation Guidelines
Installation Guidelines
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.
Caution You cannot mix blower types within the chassis. If you are replacing a blower module from an oldsystem
(GSR16-BLOWER=),you must replace both upper and lower blower modules with new, higher capacity
replacement blowers (12000/10/16-BLWER=). Although the blower modules can be replaced without
interruption to system operation, the system should not operate with mixed blower modules in the router
for more than 5 minutes.
Required Tools and Equipment
You need the following tools and equipment to install the blower module:
•Number 2 Phillips screwdriver
•3/16-inch flat-blade screwdriver
•An electrostatic discharge (ESD) preventive wrist or ankle strap with connection cord
•Vacuum cleaner (to clean the air filters)
Removing and Replacing the Blower Modules
This section contains the procedure to remove and replace the upper or lower blower modules from the
chassis. Before beginning either of these procedures, be sure to read the “Installation Guidelines” section
on page 4.
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.
•Heads-down orientation—Install the blower module in the lower blower module bay in the
“heads-down” orientation with the three fan air intake openings face up.

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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions
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Removing and Replacing the Blower Modules
Use the following procedure to remove and replace the blower modules.
Step 1 Remove the blower module from the chassis (Figure 2):
a. Loosen the captive screw on each side of the blower module.
b. Pull out the blower module halfway from the module bay.
c. Slide out the blower module completely from the module bay while supporting it with your other
hand.
Warning Theblowermoduleweighsapproximately20 pounds (9 kg).Usetwohandswhenhandlingtheblower
module.
Figure 2 Removing the Upper Blower Module
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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions 78-16083-02
Removing and Replacing the Blower Modules
Step 2 Install the new blower module into the chassis (Figure 3):
a. Lift the blower module (with two hands) and slide it halfway into the module bay.
b. Slowly push the blower module into the chassis until it mates with the backplane connector at the
back of the module bay.
Caution To prevent damage to the connectors, do not use excessive force when inserting the blower module into
the chassis.
c. Tighten the captive screws on the blower module to secure it to the chassis.
•The (green) OK status indicator on the front of the blower module should light. If the OK indicator
does not light, see the “Troubleshooting the Installation” section on page 7.
Figure 3 Installing the Upper Blower Module
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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions
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Troubleshooting the Installation
Troubleshooting the Installation
Use the following procedure to troubleshoot a blower module if it is not operating properly after
installation.
Step 1 Be sure the router is powered on and that all power cords are connected properly.
Step 2 Loosen the captive screws and reseat the blower module to the chassis.
•Retighten the captive screws to ensure the blower module is properly seated to the backplane
connector.
Step 3 Check the blower module status indicators:
•OK (green)—Indicates that the blower module is operating normally. This indicator should light as
soon as the blower module is installed and receives power from the backplane connector.
– If this indicator remains on, and the blower module fans fail to operate after several attempts to
reseat the blower module, replace it with a spare.
– If the spare blower module also fails, power off the router and contact a Cisco service
representative for assistance.
•FAIL (red)—This indicator remains off during normal operation. If this indicator is on, the system
has detected a fan failure or other fault in the blower module.
– If this indicator remains on, and the blower module fans fail to operate after several attempts to
reseat the blower module, replace it with a spare.
– If the spare blower module also fails, power off the router and contact a Cisco service
representative for assistance.
Cleaning or Replacing the Chassis Air Filter
The Cisco 12016, Cisco 12416, and Cisco 12816 routers are equipped a user-serviceable air filter that
removes dust drawn into the router. One time per month (or more often in dusty environments), examine
the air filter for damage and cleanliness.
Caution Damage to the air filter can restrict the airflow, cause overheating in the router, and degrade EMI
performance. Be careful when cleaning and replacing the filter.

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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions 78-16083-02
Cleaning or Replacing the Chassis Air Filter
Use the following procedure to clean or replace the air filter.
Step 1 Loosen the captive screws on the air filter door and pivot the door open (Figure 4).
Caution If the router uses an extended front cover bezel, the air filter door does not have enough space to open
completely. Before you open the air filter door, you must remove the extended front cover.
Figure 4 Opening the Chassis Air Filter Door
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Switch fabric
card cage
(behind filter door)
Air filter door
Captive screws
(2 on each side)
Air filter

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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions
78-16083-02
Cleaning or Replacing the Chassis Air Filter
Step 2 Lift up the air filter and carefully slide it out the door (Figure 5).
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 5 Removing the Chassis Air Filter
Step 3 Visually check the condition of the air filter to determine whether to clean or install a new replacement.
•Dirty—You can vacuum or replace the filter.
Caution Do not vacuum the air filter while it is installed in the chassis. You must remove the air filter completely
before you clean it to prevent contaminants from being drawn into the bays or cage.
•Worn or torn—If the filter appears worn or torn, dispose of it in a responsible manner and install a
replacement air filter (ACS-GSR16-FLTR=).
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Push filter up
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Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions 78-16083-02
Cleaning or Replacing the Chassis Air Filter
Step 4 Position the metal braces on the back of the air filter to face toward the switch fabric and alarm card
cage. Slide the new or cleaned air filter into the air filter door (Figure 6).
Figure 6 Installing the Chassis Air Filter
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