Table Of Contents
Mounting Bracket Installation on Cisco 2691, Cisco 3631, and Cisco 3725 Routers
Product Numbers: ACS-2RU-RM-19=, ACS-2RU-RM-23=
This document describes the procedure to install 19- and 23-inch mounting brackets on Cisco 2691, Cisco 3631, and Cisco 3725 routers. Use this document in conjunction with the hardware installation guide and the regulatory compliance and safety information document for your Cisco router, which you can access as follows:
Hardware Installation Guide
•From Cisco.com at http://www.cisco.com, select Products & Services > Routers > Your router platform > Installation Guides Books > Hardware installation guide for your router
•On the Documentation CD-ROM or on the previous Cisco website, navigate to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/, then select your router platform and navigate to the hardware installation guide.
Regulatory Compliance and Safety Information Document
•From Cisco.com at http://www.cisco.com, select Products & Services > Routers > Your router platform > Technical details > Regulatory Approvals and Compliance > Cisco 2600 Series, 3600 Series, and 3700 Series Regulatory Compliance and Safety Information
•On the Documentation CD-ROM or on the previous Cisco website, navigate to the following URL:
If you have questions or need help, see the "Obtaining Documentation" section.
This document includes the following sections:
Follow these guidelines to ensure general safety:
•Keep the chassis area clear and dust-free during and after installation.
•Do not wear loose clothing that could get caught in the chassis. Fasten your tie or scarf and roll up your sleeves.
•Wear safety glasses when working under any conditions that might be hazardous to your eyes.
•Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
Tools and Equipment Needed
You need the following tools and equipment to install rack-mount brackets:
•Number 2 Phillips screwdriver
Bracket Kit Contents
This mounting-bracket kit contains the following items:
•Bracket pair for mounting a router in a 19-inch rack
•Bracket pair for mounting a router in a 23-inch NEBS/ETSI rack
•Screws for attaching brackets to the router chassis
Note The slots in the wide bracket are for securing cables with cable ties.
Figure 1 Brackets for 19-Inch Rack-Mounting
Figure 2 Brackets for 23-Inch Rack Mounting
Attaching Brackets to Router Chassis
Attach the mounting brackets to the chassis in one of the following ways, using the screws provided in the bracket kit:
•Front mounting (see Figure 3.)
•Rear mounting (see Figure 4.)
•Center mounting with front panel forward (see Figure 5.)
•Center mounting with rear panel forward (see Figure 6.)
Use a number 2 Phillips screwdriver to install the bracket screws.
Note Be sure to attach the wider bracket (marked RIGHT) to the side with the cooling fans. This provides extra clearance for cooling air.
Figure 3 Bracket Installation—Front Mounting
Figure 4 Bracket Installation—Rear Mounting
Figure 5 Bracket Installation—Center Mounting with Front Panel Forward
Figure 6 Bracket Installation—Center Mounting with Rear Panel Forward
Installing the Router in a Rack
Install the chassis in the rack using the appropriate rack-mounting screws. Use two screws on each side.
Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:
•This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
•When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
•If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.
Note To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.
What to Do After Installing the Router
After you have installed the router, refer to one or more of the following documents for information about the required chassis grounding, LAN and WAN connections, power connections, and router configuration:
•Quick start guide that shipped with your router
•Hardware installation guide, available on the CD-ROM that shipped with your router and online at Cisco.com
•Cisco IOS software configuration documentation, available on the CD-ROM that shipped with your router and online at Cisco.com
For additional information about obtaining documentation, see the "Obtaining Documentation" section below.
These sections explain how to obtain documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at this URL:
Translated documentation is available at this URL:
Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.
You can order Cisco documentation in these ways:
•Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:
•Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:
•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).
You can submit comments electronically on Cisco.com. In the Cisco Documentation home page, click the Fax or Email option in the "Leave Feedback" section at the bottom of the page.
You can e-mail your comments to email@example.com.
You can submit your comments by mail by using the response card behind the front cover of your document or by writing to the following address:
Attn: Document Resource Connection
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San Jose, CA 95134-9883
We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.
Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you with these tasks:
•Streamline business processes and improve productivity
•Resolve technical issues with online support
•Download and test software packages
•Order Cisco learning materials and merchandise
•Register for online skill assessment, training, and certification programs
If you want to obtain customized information and service, you can self-register on Cisco.com. To access Cisco.com, go to this URL:
Technical Assistance Center
The Cisco Technical Assistance Center (TAC) is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC Web Site and the Cisco TAC Escalation Center.
Cisco TAC inquiries are categorized according to the urgency of the issue:
•Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.
•Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.
•Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.
•Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.
The Cisco TAC resource that you choose is based on the priority of the problem and the conditions of service contracts, when applicable.
Cisco TAC Web Site
You can use the Cisco TAC Web Site to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to this URL:
All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:
If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC Web Site, you can open a case online by using the TAC Case Open tool at this URL:
If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC Web Site.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:
Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.
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