Table Of Contents
Installation
Preparing for Installation
Warnings
Installation Guidelines
Verifying Package Contents
Verifying Switch Operation
Installing the Switch
Installing the Switch on a Desk (Without Mounting Screws)
Installing the Switch on a Desk (With Mounting Screws)
Installing the Switch Under a Desk
Installing the Switch on a Wall
Installing the Switch (Magnet Mount)
Connecting to an SFP Module
Connecting to 10/100 Ports and the 10/100/1000 Port
Connecting to the 100BASE-FX Port
Connecting to an SFP Module
Where to Go Next
Installation
This chapter describes how to install your switch, how to interpret the power-on self-test (POST), and how to connect the switch to other devices. Read these topics, and perform the procedures in this order:
•
Preparing for Installation
•Verifying Switch Operation
•Installing the Switch
•Connecting to an SFP Module
•Connecting to 10/100 Ports and the 10/100/1000 Port
•Connecting to the 100BASE-FX Port
•Connecting to an SFP Module
•Where to Go Next
Preparing for Installation
This section provides information about these topics:
•Warnings
•Installation Guidelines
•Verifying Package Contents
Warnings
These warnings are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst 2940 Switch.
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
Warning Read the installation instructions before connecting the system to the power source. Statement 1004
Warning Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury and equipment damage. Statement 48
Warning The plug-socket combination must be accessible at all times, because it serves as the main disconnecting device. Statement 1019
Warning To prevent the switch from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 113°F (45°C). To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation openings. Statement 17B
Warning When installing the unit, always make the ground connection first and disconnect it last. Statement 42
Warning Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. Statement 39
Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. Statement 43
Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001
Warning Ultimate disposal of this product should be handled according to all national laws and regulations. Statement 1040
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051
Warning Class 1 laser product. Statement 1008
Warning Avoid direct exposure to the laser beam. Statement 1012
Installation Guidelines
When determining where to place the switch, observe these guidelines.
•Before installing the switch, first verify that the switch is operational by powering it on and running POST. Follow the procedures in the "Verifying Switch Operation" section.
•For 10/100 ports and the 10/100/1000 port, the cable length from a switch to an attached device cannot exceed 328 feet (100 meters).
•For the 100BASE-FX port, the cable length from a switch to an attached device cannot exceed 6562 feet (2 kilometers).
•Operating environment is within the ranges listed in "Technical Specifications."
•Clearance to front and rear panels meet these conditions:
–Front-panel LEDs can be easily read.
–Access to ports is sufficient for unrestricted cabling.
–Rear-panel AC power connector is within reach of an AC power outlet.
•Airflow around the switch and through the vents is unrestricted.
•Temperature around the unit does not exceed 113°F (45°C).
Note If the switch is installed in a closed area, such as a wiring closet, the temperature around it might be greater than normal room temperature.
•Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures.
Verifying Package Contents
Note Carefully remove the contents from the shipping container, and check each item for damage. If any item is missing or damaged, contact your Cisco representative or reseller for support. Return all packing materials to the shipping container and save them.
The switch is shipped with these items:
•AC power cord
•Mounting kit containing these items:
–Four rubber feet for installing the switch on a desktop
–Three number-8 Phillips pan-head screws for mounting the switch on or under a desk or on a wall
–Screw template for aligning screws
–Magnet for mounting the switch on a metal surface
•One RJ-45-to-DB-9 adapter (console port) cable
•Catalyst 2940 Switch Getting Started Guide (order number DOC-7816576=)
•Regulatory Compliance and Safety Information for the Catalyst 2940 Switch
(order number DOC-7816656=)
•Product ownership registration card
If you want to connect a terminal to the switch console port, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) with that adapter from Cisco.
You can connect a 100BASE-FX port to an SC port on a target device by using one of the MT-RJ fiber-optic patch cables listed in Table 2-1. Use the Cisco part numbers in Table 2-1 to order the patch cables that you need.
Table 2-1 MT-RJ Patch Cables for 100BASE-FX Connections
Type
|
Cisco Part Number
|
1-meter, MT-RJ-to-SC multimode cable
|
CAB-MTRJ-SC-MM-1M
|
3-meter, MT-RJ-to-SC multimode cable
|
CAB-MTRJ-SC-MM-3M
|
5-meter, MT-RJ-to-SC multimode cable
|
CAB-MTRJ-SC-MM-5M
|
1-meter, MT-RJ-to-ST multimode cable
|
CAB-MTRJ-ST-MM-1M
|
3-meter, MT-RJ-to-ST multimode cable
|
CAB-MTRJ-ST-MM-3M
|
5-meter, MT-RJ-to-ST multimode cable
|
CAB-MTRJ-ST-MM-5M
|
Verifying Switch Operation
Before installing the switch, you should power on the switch and verify that it passes POST as described in the getting started guide.
The System LED turns amber if the POST fails. If the POST fails, see "Troubleshooting," to determine a course of action.
Installing the Switch
You can install the switch on or under a desk or on a wall. Before you begin the installation, decide where to mount the switch by reviewing the illustrations in these sections:
•"Installing the Switch on a Desk (Without Mounting Screws)" section
•"Installing the Switch on a Desk (With Mounting Screws)" section
•"Installing the Switch Under a Desk" section
•"Installing the Switch on a Wall" section
•"Installing the Switch (Magnet Mount)" section
Installing the Switch on a Desk (Without Mounting Screws)
The switch can be installed on top of a desk with mounting screws or just placed on the desk. If you do not want to install the switch with mounting screws, follow these steps:
Step 1 Locate the adhesive strip with the rubber feet in the accessory kit.
Step 2 Remove the four rubber feet from the adhesive strip, and attach them to the recessed areas on the bottom of the unit. This prevents the switch from sliding on the desktop.
Step 3 Place the switch on the desktop.
Installing the Switch on a Desk (With Mounting Screws)
Follow these steps to secure the switch on a desk top:
Step 1 Locate the screw template. The template is used to align the mounting screw holes and is also used as a guide to make sure the screws are installed into the desktop with proper clearance.
Step 2 Position the screw template on top of the desk so that the two side-by-side slots face the front of the desk, as shown in Figure 2-1. This ensures that the power cord faces the rear of the desk after the switch is installed.
Note Do not attach the screw template to the desk yet.
Figure 2-1 Installing the Mounting Screws on Top of a Desk
1
|
Screw template
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3
|
Wall
|
2
|
Screws
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4
|
Desk
|
Step 3 Peel the adhesive strip off the bottom of the screw template, and attach it to the top of the desk.
Step 4 Use a 0.144-inch (3.7 mm) or a #27 drill bit to drill a 1/2-inch (12.7 mm) hole in the two screw template slots.
Step 5 Insert three screws in the slots on the screw template, and tighten until they touch the top of the screw template.
Step 6 Remove the screw template from the desk top.
Step 7 Place the switch onto the mounting screws and slide the switch forward until it locks in place, as shown in Figure 2-2.
Figure 2-2 Mounting the Switch on Top of a Desk
1
|
Slides on this way
|
3
|
Desktop
|
2
|
Screws
|
4
|
Wall
|
Installing the Switch Under a Desk
Follow these steps to install the switch under a desk:
Step 1 Locate the screw template. The template is used to align the mounting screw holes and is also used as a guide to make sure the screws are installed under the desk with proper clearance.
Step 2 Position the screw template underneath the desk so that the two side-by-side slots face the front of the desk, as shown in Figure 2-4. This ensures that the power cord faces the rear of the desk after the switch is installed.
Note Do not attach the screw template to the desk yet.
Figure 2-3 Installing the Mounting Screws Under a Desk
1
|
Desktop
|
4
|
Adhesive
|
2
|
Screw template
|
5
|
Wall
|
3
|
Screws
|
|
|
Step 3 Peel the adhesive strip off the bottom of the screw template, and attach it to the underside of the desk.
Step 4 Use a 0.144-inch (3.7 mm) or a #27 drill bit to drill a 1/2 inch (12.7 mm) hole in the two screw template slots.
Step 5 Insert three screws in the slots on the screw template, and tighten until they touch the top of the screw template.
Step 6 Remove the screw template from underneath the desk.
Step 7 Place the switch onto the mounting screws and slide the switch forward until it locks in place, as shown in Figure 2-4.
Figure 2-4 Mounting the Switch Under a Desk
1
|
Desktop
|
3
|
Slides on this way
|
2
|
Screws
|
4
|
Wall
|
Installing the Switch on a Wall
Follow the steps in this section to install the switch to a wall:
Note The switch can be wall-mounted with the front panel facing up or down. The steps in this section show how to mount the switch with the front panel facing down (as shown in Figure 2-5 and Figure 2-6.) If you want to mount the switch with the front panel facing up, rotate the screw template 180 degrees.
Step 1 Locate the screw template. The template is used to align the mounting screw holes.
Step 2 Position the screw template so that the two side-by-side slots face toward the ceiling, as shown in Figure 2-5. This ensures that the power cord faces toward the floor after they are connected.
For the best support of the switch and cables, make sure the switch is attached securely to a wall stud or to a firmly attached plywood mounting backboard.
Note Do not attach the screw template to the wall yet.
Figure 2-5 Installing the Mounting Screws on a Wall
1
|
Wall
|
2
|
Screws
|
3
|
Screw template
|
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-inch (3.7 mm) or a #27 drill bit to drill a 1/2 inch (12.7 mm) hole in the three screw template slots.
Step 6 Insert three screws in the slots on the screw template, and tighten until they touch the top of the screw template.
Step 7 Remove the screw template from the wall.
Step 8 Place the switch onto the mounting screws and slide it down until it locks in place, as shown in Figure 2-6.
Figure 2-6 Installing the Switch On a Wall
1
|
Switch
|
2
|
Screw
|
3
|
Slides on this way
|
Installing the Switch (Magnet Mount)
To mount a switch by using the magnet, follow these steps:
Step 1 Place one side of the magnet against the bottom of the switch, as shown in Figure 2-7
Figure 2-7 Mounting the Switch with a Magnet
Step 2 Mount the magnet and switch on a metal surface.
Connecting to an SFP Module
This section describes how to connect to an SFP module. For instructions about how to install or remove an SFP module, see the Cisco Small Form-Factor Pluggable Modules Installation Notes (order number DOC-7815160=) and to the documentation that came with your SFP module.
Caution Do not remove the rubber plugs from the ports on fiber-optic SFP modules or the rubber caps from the the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.
Before connecting to an SFP module, be sure that you understand the port and cabling stipulations in
Table 1-2 and in the
"SFP Module Slot" section. See
"Connectors and Cables," for information about the LC on the SFP modules for fiber-optic connections.
Note Refer to the release notes for the latest information about SFP modules supported by the switch.
Follow these steps to connect a fiber-optic cable to an SFP module:
Step 1 Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.
Step 2 Insert one end of the fiber-optic cable into the SFP module port, as shown in Figure 2-11)
Figure 2-8 Connecting to an SFP Module Port
Step 3 Insert the other cable end in a fiber-optic receptacle on a target device.
Step 4 Observe the port status LED.
The LED turns green when the switch and the target device have an established link.
The LED turns amber while the STP discovers the network topology and searches for loops. This process takes about 30 seconds, and then the port LED turns green.
If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be problem with the adapter installed in the target device. See Chapter 3, "Troubleshooting," for solutions to cabling problems.
Step 5 If necessary, reconfigure and restart the switch or target device.
Connecting to 10/100 Ports and the 10/100/1000 Port
The 10/100 ports configure themselves to operate at the speed and duplex settings of attached devices.They operate at 10 or 100 Mbps in half- or full-duplex mode. If the attached devices do not support autonegotiation, you can explicitly set the speed and duplex parameters.
The 10/100/1000 port on the 2940-8TT-S operates at the speed setting of the attached device. This port operates in half- or full-duplex mode at 10 or 100 Mbps or in full-duplex mode only at 1000 Mbps. If the attached device does not support autonegotiation, you can set the speed.
Connecting a device that does not autonegotiate or a device with manually set speed and duplex parameters can reduce performance or result in link failures between the devices. To maximize performance, choose one of these methods for configuring the ports:
•Let the port autonegotiate both speed and duplex for 10/100 ports and only speed for 10/100/1000 ports.
•Set the speed and duplex parameters on both ends of the connection.
Caution To comply with the intrabuilding lightning surge requirements, intrabuilding wiring must be shielded, and the shield for the wiring must be grounded at both ends.
Follow these steps to connect the switch to 10BASE-T, 100BASE-TX, or 1000BASE-T devices:
Step 1 To prevent electrostatic-discharge (ESD) damage, follow your normal board and component handling procedures.
When connecting to servers, workstations, and routers, insert a twisted-pair straight-through cable in a front-panel RJ-45 connector, as shown in Figure 2-9. When connecting to switches or repeaters, insert a twisted-pair crossover cable. See the "Cable and Adapter Specifications" section for cable-pinout descriptions.
Note When connecting to 1000BASE-T devices, be sure to use a four twisted-pair, Category 5 cable.
Figure 2-9 Connecting to a 10/100 Port
Step 2 Insert the other cable end into an RJ-45 connector on the target device.
Step 3 Observe the port status LED.
The LED turns green when the switch and the target device have an established link.
The LED turns amber while Spanning Tree Protocol (STP) discovers the network topology and searches for loops. This process takes about 30 seconds, and then the LED turns green.
If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be a problem with the adapter installed in the target device. See "Troubleshooting," for solutions to cabling problems.
Step 4 Reconfigure and restart the target device if necessary.
Step 5 Repeat Steps 1 through 4 to connect each port.
Connecting to the 100BASE-FX Port
The 100BASE-FX port on the Catalyst 2940-8TF-S operates only in full-duplex mode.
You can connect a 100BASE-FX port to an SC port on another device by using one of the MT-RJ fiber-optic patch cables listed in Table 2-1. Use the Cisco part numbers in Table 2-1 to order the patch cables that you need.
Caution Do not remove the dust plugs from the fiber-optic ports or the rubber caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the fiber-optic ports and cables from contamination and ambient light.
Follow these steps to connect the switch to a 100BASE-FX device:
Step 1 Remove the dust plugs from the 100BASE-FX port and the rubber caps from the MT-RJ patch cable. Store them for future use.
Step 2 Insert the cable in a 100BASE-FX port, as shown in Figure 2-10.
Figure 2-10 Connecting to a 100BASE-FX Port
Step 3 Insert the other cable end into an SC port on the target device.
Step 4 Observe the port status LED.
The LED turns green when the switch and the target device have an established link.
The LED turns amber while Spanning Tree Protocol (STP) discovers the network topology and searches for loops. This process takes about 30 seconds, and then the port LED turns green.
If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be a problem with the adapter installed in the target device. See "Troubleshooting," for solutions to cabling problems.
Step 5 Reconfigure and restart the target device if necessary.
Step 6 Repeat Steps 1 through 5 to connect each port.
Connecting to an SFP Module
This section describes how to connect to an SFP module. For instructions about how to install or remove an SFP module, see the Cisco Small Form-Factor Pluggable Modules Installation Notes (order number DOC-7815160=) and to the documentation that came with your SFP module.
Caution Do not remove the rubber plugs from the ports on fiber-optic SFP modules or the rubber caps from the the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables from contamination and ambient light.
Before connecting to an SFP module, be sure that you understand the port and cabling stipulations in
Table 1-2 and in the
"SFP Module Slot" section. See
"Connectors and Cables," for information about the LC on the SFP modules for fiber-optic connections.
Note See the release notes for the latest information about SFP modules supported by the switch.
Follow these steps to connect a fiber-optic cable to an SFP module:
Step 1 Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.
Step 2 Insert one end of the fiber-optic cable into the SFP module port, as shown in Figure 2-11.
Figure 2-11 Connecting to an SFP Module Port
Step 3 Insert the other cable end in a fiber-optic receptacle on a target device.
Step 4 Observe the port status LED.
The LED turns green when the switch and the target device have an established link.
The LED turns amber while the STP discovers the network topology and searches for loops. This process takes about 30 seconds, and then the port LED turns green.
If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be problem with the adapter installed in the target device. See Chapter 3, "Troubleshooting," for solutions to cabling problems.
Step 5 If necessary, reconfigure and restart the switch or target device.
Where to Go Next
For information about starting up the switch, see the Catalyst 2940 Switch Getting Started Guide.
If the default configuration is satisfactory, the switch does not need further configuration. You can use any of these management options to change the default configuration:
•Start the device manager, which is in the switch memory, to manage individual and standalone switches. This is an easy-to-use web interface that offers quick configuration and monitoring. You can access the device manager from anywhere in your network through a web browser. For more information, see the getting started guide and the device manager online help.
•Start the Network Assistant application, which is described in the Getting Started with Cisco Network Assistant guide. Through this GUI, you can configure and monitor a switch cluster or an individual switch.
•Use the command-line interface (CLI) from the console to configure the switch as a member of a cluster or as an individual switch. See the Catalyst 2940 Switch Software Configuration Guide and the Catalyst 2940 Switch Command Reference on Cisco.com for more information.
For setup instructions that use the CLI, go to "Configuring the Switch with the CLI-Based Setup Program."
•Start an SNMP application such as the CiscoView application.
For information about configuring the switch, see the switch software configuration guide.
