The following sections are included in this publication:
Prerequisites and Preparation
Before you perform any of the procedures in this guide, we recommend that you:
For additional information about obtaining documentation see the
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 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.
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.
Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions
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
"Installation Guidelines" section on page
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
"Obtaining Documentation" section