Filter
Top Products
Americas Headquarters:
© 2008 Cisco Systems, Inc. All rights reserved.
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Installing and Upgrading Fans in Cisco 3725
Series Routers
This document describes how to install or upgrade fans that are located inside your Cisco 3725 series
router. You must remove the cover from the router before you can install or remove the fans.
This document is intended for the fan installer, who should be familiar with electronic circuitry and
wiring practices and have experience as an electronic or electromechanical technician.
Note Use this document in conjunction with the Cisco 3700 Series Hardware Installation Guide and the
Regulatory Compliance and Safety Information document for your router. You can find these documents
at the following URLs.
For the Cisco 3700 Series Hardware Installation Guide:
http://www.cisco.com/en/US/docs/routers/access/3700/hardware/installation/guide/37higbk.pdf
For the Regulatory Compliance and Safety Information document:
http://www.cisco.com/en/US/products/hw/routers/ps259/products_regulatory_approvals_and_complian
ce09186a008007e46e.html
If you have questions or need help, see the “Obtaining Documentation, Obtaining Support, and Security
Guidelines” section on page 23.
This document contains the following sections:
• Safety Recommendations, page 2
• Required Tools and Equipment, page 9
• Overview of Cisco 3725 Router Fans, page 10
• Removing the Chassis Cover, page 10
• Replacing the Cisco 3725 System Fan, page 11
• Obtaining Documentation, Obtaining Support, and Security Guidelines, page 23