Table Of Contents
Installation Notes for the Catalyst 2940 Switch Cable Guard
This installation note provides instructions for installing a cable guard with the Catalyst 2940-8TT-S and 2940-8TF-S switches.
The cable guard secures cables that are installed in a Catalyst 2940 switch and provides extra security against a switch being removed after it is installed.
This document has these sections:
This document uses these conventions and symbols for notes, cautions, and warnings:
Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual.
Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.
This section describes how to install the cable guard.
EMC Regulatory Statements
U.S. regulatory information for this product is at the back of this document.
This is a Class A Information Product, when used in residential environment, it may cause radio frequency interference, under such circumstances, the user may be requested to take appropriate countermeasures.
The cable guard is shipped with these items:
•Installation Notes for the Catalyst 2940 Switch Cable Guard
•Three number-8 Phillips truss-head screws
•Four number-8 Phillips pan-head, self-tapping screws
Note In some installations, you also need the screw template and three number-8 Phillips pan-head screws. These are included in the accessory kit with the switch.
Connect all cables to the switch before assembling the switch and cable guard. The switch and cable guard assembly is then mounted on a wall or on or under a desk.
Note Cables cannot be connected to the switch after it is attached to the cable guard. For information about connecting devices to the switch, refer to the hardware installation guide.
Before you begin, decide how to mount the cable guard and switch by reviewing these sections:
Caution The cable guard is shipped with number-8 Phillips pan-head, self-tapping screws. When installing the switch and cable guard assembly on a wall, you might need to use different types of screws depending on the construction of the wall. For best support of the cable guard and switch assembly, attach the switch securely to a wall stud or to a firmly attached plywood mounting backboard.
Installing the Switch (Front Panel Facing Down)
To install the switch with the front panel facing down, follow these steps:
Step 1 Locate the screw template (included in the switch accessory kit). The template is used to align the mounting screw holes and is also used as a guide to make sure that the screws are installed in the wall with proper clearance.
Step 2 Position the screw template so that the two side-by-side slots face toward the floor, as shown in Figure 1. For the best support of the switch and cable guard, make sure the switch and cable guard are attached securely to a wall stud or to a firmly attached plywood mounting backboard.
Figure 1 Installing the Mounting Screws on a Wall
Step 3 Peel the adhesive strip off the bottom of the screw template.
Step 4 Attach the screw template to the wall.
Step 5 Use a 0.144-in. (3.7 mm) or a #27 drill bit to drill three 1/2-in. (12.7 mm) holes in the wall, using the screw template slots for alignment.
Step 6 Insert the three number-8 Phillips pan-head screws in the slots on the screw template, and tighten until they touch the top of the screw template.
Caution You might need to use different types of screws depending on the construction of the wall. For best support of the cable guard and switch assembly, attach the switch securely to a wall stud or to a firmly attached plywood mounting backboard.
Step 7 Remove the screw template from the wall.
Step 8 Attach the cables to the switch, as shown in Figure 2. For information about devices that can be connected to the switch, refer to the hardware installation guide.
Figure 2 Attaching Cables to the Switch
Step 9 Slide the switch into the cable guard, as shown in Figure 3, ensuring that all connected cables are routed through the slots in the front of the cable guard. Three hooks on the top of the cable guard secure the bottom of the switch against the cable guard.
Figure 3 Sliding Switch into Cable Guard
Step 10 Guide the connected cables through the slots in the front of the cable guard. The completed switch and cable guard assembly is shown in Figure 4.
Figure 4 Cables Routed Through Slots In Cable Guard
Step 11 Use two of the included number-8 Phillips truss-head screws to attach the front of the cable guard to the switch, as shown in Figure 5.
Figure 5 Attaching Front Mounting Screws to the Switch
Step 12 (Optional) Use the third number-8 Phillips truss-head supplied screw to attach the bottom of the switch to the cable guard, as shown in Figure 6. This optional screw helps prevent the switch from being easily removed from the cable guard.
Figure 6 (Optional) Attaching Screw to Bottom of Switch
Slide the assembled cable guard and switch onto the three mounting screws, as shown in Figure 7.
Figure 7 Installing Cable Guard and Switch
Step 13 (Optional) Use the three of the number 8-18 Phillips pan-head screws supplied screws to further secure the cable guard and switch on the wall, as shown in Figure 8.
Note You can use the three number-8 Phillips pan-head screws that are included in the switch accessory kit for this step.
Figure 8 Mounting Switch on Wall
Installing the Switch (Front Panel Facing Up)
You can install the cable guard and switch with the front panel facing up. Follow the same steps in the "Installing the Switch (Front Panel Facing Down)" section with these changes:
•Install the three number 8 Phillips pan-head screws to mount the switch and cable guard assembly, as described in Step 13. This step is not optional when the switch is installed with the front panel facing up.
Installing the Switch On or Under a Desk
You can install the cable guard and switch on or under a desk. Follow the same steps in the "Installing the Switch (Front Panel Facing Down)" section, but use the screw template to install the mounting screws on or under the desk instead of on a wall.
Installing the Cable Guard with a Previously-Installed Switch
You can install the cable guard with a previously installed switch:
•If you are mounting the cable guard and switch assembly with the front panel facing down, use the same three mounting screws that are already installed in the wall and go to Step 9.
Note You might need to turn the wall-mounted screws 1/4 turn counterclockwise before mounting the switch and cable guard assembly on the wall (the cable guard is made of thicker material than the switch chassis.)
•If you are mounting the cable guard and switch assembly with the front panel facing up, remove the wall-mounted screws and then see the installation guidelines in the "Installing the Switch (Front Panel Facing Down)" section.
These documents provide complete information about the switch and are available from this URL:
For hardware information about the Catalyst 2940 switches, refer to the Catalyst 2940 Switch Hardware Installation Guide (order number DOC-78-1543501=)
For software information for the Catalyst 2940 switches, refer to these documents:
•Catalyst 2940 Switch Software Configuration Guide (order number DOC-7815507=)
•Catalyst 2940 Switch Command Reference (order number DOC-785505=)
•Catalyst 2940 Switch System Message Guide (order number DOC-7815504=)
•Cluster Management Suite (CMS) online help (available only from the switch CMS software)
•Release Notes for the Catalyst 2940 Switch (not orderable but is available on Cisco.com)
For other information about related products, refer to the Installation Notes for the Catalyst Family Small Form-Factor Pluggable Modules (order number DOC-7815160=)
You can order printed copies of documents with a DOC-xxxxxxx= number.
Where to Go Next
For further information about installing the switches, refer to the hardware installation guide.
For information about configuring the switches, refer to the software configuration guide and the command reference.
Cisco provides several ways to obtain documentation, technical assistance, and other technical resources. These sections explain how to obtain technical information from Cisco Systems.
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Obtaining Technical Assistance
Cisco provides Cisco.com, which includes the Cisco Technical Assistance Center (TAC) website, as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from the Cisco TAC website. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC website, including TAC tools and utilities.
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If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC website, you can open a case online at this URL:
If you have Internet access, we recommend that you open P3 and P4 cases online so that you can fully describe the situation and attach any necessary files.
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.
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Before calling, please check with your network operations center to determine the 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.
Obtaining Additional Publications and Information
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•Packet magazine is the Cisco quarterly publication that provides the latest networking trends, technology breakthroughs, and Cisco products and solutions to help industry professionals get the most from their networking investment. Included are networking deployment and troubleshooting tips, configuration examples, customer case studies, tutorials and training, certification information, and links to numerous in-depth online resources. You can access Packet magazine at this URL:
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