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Warning Before you install, operate, or service the system, read the Site Preparation and Safety Guide. This guide contains important safety information you should know before working with the system. Statement 200 |
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Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030 |
This chapter describes how to install the Catalyst 2948G, 2948G-GE-TX, and 2980G switches. For first-time installations, perform the procedures in these sections in the order listed:
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Note Before starting the installation procedures in this chapter, complete the site-planning checklist in "Site Planning." |
This section provides information about these topics:
This section includes specific regulatory statements about the switches.
U.S. regulatory information for this product is in the front matter of this manual.
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Do not discard the packing carton and other packing materials after you unpack the switch. Flatten the packing carton and store it. You will need the packing materials if you need to move or ship the switch in the future. Repacking instructions are provided in "Repacking a Switch."
Check the contents of the accessory kit against the accessories checklist and the packing slip. Verify that you received all listed equipment.
The Catalyst 2948G and 2980G switches are shipped with these items:
The Catalyst 2948G-GE-TX switch is shipped with these items:
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A standard rack-mount kit is included for mounting the switch in a standard 19-inch (48.3 cm) equipment rack with two unobstructed outer posts. This kit is not suitable for racks with obstructions (such as a power strip) that could impair access to the switch.
You will need the following tools and equipment to install the switch chassis in a rack:
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Note For more information about ESD, refer to the Site Preparation and Safety Guide. |
To install Catalyst 2940G and 2980G switches in a 19-inch rack, follow these steps:
a. Place the chassis on the floor or on a sturdy table, as close as possible to the rack. Leave enough clearance to allow yourself to move around the chassis.
b. Use the tape measure to measure the depth of the rack. Measure from the outside of the front-mounting posts to the outside of the rear-mounting strip. The depth must be at least 19.25 inches (48.9 cm) and not greater than 32 inches (81.3 cm).
c. Measure the space between the inner edges of the left front- and right front- mounting posts to ensure that it is 17.75 inches (45.09 cm) wide. (The chassis is 17.5 inches [44 cm] wide and must fit between the mounting posts. See Figure 3-2.)
d. Open the rack-mount kit and refer to the component checklist in Table 3-1 to verify that all parts are included.
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Note Some equipment racks have a power strip along the length of one of the rear posts. If the rack has this feature, consider the position of the strip when planning fastener points. Before installing the L brackets on the chassis, determine whether to install the chassis from the front or the rear of the rack. |
Step 2 Attach the left and right L brackets using the four M4 Phillips pan-head screws provided in the rack-mount kit (see Figure 3-1).
The L brackets connect the switch chassis to the rack. You can mount the L brackets to the front- or rear-mounting holes of the chassis, depending on which end is in the front of the rack.
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Note The Catalyst 2948G switch is shown in the rack-mounting illustrations. The rack-mounting procedure for the Catalyst 2980G switch is the same. |
Step 3 Figure 3-2 shows how to attach the front of the switch to the rack. You can also attach the rear of the switch to the rack, depending on the configuration of your rack.
Install the chassis in the rack as follows:
a. Position the switch chassis in the rack (see Figure 3-2):
b. Align the mounting holes in the L bracket with the mounting holes in the equipment rack.
c. Secure the chassis using six 12-24 x 3/4-inch screws (three per side) through the elongated holes in the L bracket and into the threaded holes in the mounting post.
d. Use the tape measure and level to ensure that the chassis is installed straight and level.
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To install a Catalyst 2948G-GE-TX switch, follow the steps described in these procedures:
To install a Catalyst 2948G-GE-TX switch in a 19-inch rack (24-inch racks require optional mounting hardware), follow the instructions described in these procedures:
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Note Installing the switch in a 24-inch rack requires an optional bracket kit not included with the switch. You can order a kit containing the 24-inch rack-mounting brackets and hardware (order part number RCKMNT-1RU=) from Cisco. |
If you plan to install the switch in a rack, you must first remove screws in the switch chassis so that mounting brackets can be attached. Figure 3-3 shows how to remove the chassis screws from the switch.
The bracket orientation and the brackets you use depend on whether you are attaching the brackets for a 19-inch or a 24-inch rack. For 19-inch racks, use the brackets that are included in the mounting kit.
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Note Installing the switch in a 24-inch rack requires an optional bracket kit not included with the switch. You can order a kit containing the 24-inch rack-mounting brackets and hardware (order part number RCKMNT-1RU=) from Cisco. |
Figure 3-4 through Figure 3-9 show how to attach each type of bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side of the switch.
After the brackets are attached to the switch, use the four supplied number-12 Phillips machine screws to securely attach the brackets to the rack, as shown in Figure 3-10.
We recommend attaching the cable guide to the left or right bracket to prevent the cables from obscuring the front panel of the switch and the other devices installed in the rack. Use the supplied black screw, as shown in Figure 3-11, to attach the cable guide to the left or right bracket.
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Note The Catalyst 2948G-GE-TX switch ships with a special cable guide, as shown in Figure 3-11. This cable guide secures up to 48 cables. Use the supplied black screw to mount it on the left or right bracket. |
To install the Catalyst 2948G-GE-TX switch on a wall, follow the instructions in these procedures:
Figure 3-12 shows how to attach a 19-inch bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side of the switch.
If you are not using a Cisco RPS with your switch, use the two Phillips pan-head screws to attach the RPS connector cover to the back of the switch before you mount it, as shown in Figure 3-13.
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Warning If an RPS is not connected to the switch, install an RPS connector cover on the back of the switch. Statement 265 |
For the best support of the switch and cables, make sure the switch is attached securely to wall studs or to a firmly attached plywood mounting backboard. Mount the switch with the front panel facing up, as shown in Figure 3-14.
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Warning To comply with safety regulations, mount the switches on a wall with the front panel facing up. Statement 266 |
To install the switch on a table or shelf, follow these steps:
Step 2 Attach the four rubber feet to the recessed areas on the bottom of the unit.
Step 3 Place the switch on the table or shelf near an AC power source.
To connect power to Catalyst 2948G, 2948G-GE-TX, and 2980G switches, follow these steps:
Step 2 Plug the power cord into the chassis.
Step 3 Connect the other end of the power cord to an AC-power input source.
Step 4 Verify power supply operation by checking the front panel power supply LEDs:
From the system console, enter the show system command to display the power supply and system status. For more information on commands, refer to the command reference for your switch.
If the LEDs or the show system command indicate a power problem or other system problem, see "Translated Safety Warnings" for more information.
The 10/100 ports on the Catalyst 2948G and 2980G switches 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, the speed should resolve correctly. You can also explicitly set the speed and duplex parameters.
The 10/100/1000 ports on the Catalyst 2948G-GE-TX switches configure themselves to operate at the speed setting of attached devices. These ports operate at 10, 100, or 1000 Mbps in full-duplex mode. If the attached devices do not support autonegotiation, you can set the speed.
Connecting devices that do not autonegotiate or devices 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:
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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. |
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Caution To prevent electrostatic-discharge (ESD) damage, follow your normal board and component handling procedures. |
To connect the switch to 10BASE-T, 100BASE-TX, or 1000BASE-T devices, follow these steps:
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Note When connecting to 1000BASE-T devices, be sure to use a four twisted-pair, Category 5 cable. |
Step 2 Insert the other cable end in an RJ-45 connector on the target device.
Step 3 Observe the port STATUS LED:
The LED does not light when the target device is not turned on, a cable problem exists, or a problem exists with the adapter installed in the target device.
If the STATUS LED does not turn green or does not light at all, see "Troubleshooting the Installation" section 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.
The console serial and Ethernet management ports are located on the front panel of the Catalyst 2948G, 2948G-GE-TX, and 2980G switches. These ports use an RJ-45 media-dependent interface crossed-over (MDIX) connector, as shown in Figure 3-16. For information about port pinouts, see "Specifications."
The Catalyst 2948G switches have a 10BASE-T management port. The Catalyst 2948G-GE-TX and 2980G-A switches have a 10/100BASE-T management port.
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Note The MDIX Ethernet ports are crossed over internally. For an MDI-to-MDI or MDIX-to-MDIX connection, use a crossover cable. For an MDI-to-MDIX connection, use a straight-through cable, which allows the Tx pins to connect with the Rx pins. |
After you have connected all the interfaces, check all connections, and then perform the following steps to power on the system to verify that it is operational:
Step 2 Check the console terminal and make sure it is powered on.
Step 3 Connect the power cords to the switch.
Step 4 Verify that the PSI or PWR LEDs on the power supply front panel is green.
Step 5 Listen for the system fans to ensure that they are operational.
Step 6 While the system initializes, check that the STATUS LED on the supervisor engine is amber until the boot is complete.
When the system boot is complete (it takes a few seconds), the supervisor engine begins to initialize the interfaces. During this initialization, the interface LEDs flash on and off. When initialization is complete, the console screen displays a script and system banner.
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Note When interface LEDs are on, the interface ports may not be functional or enabled. Although the LEDs for many interface types might turn on at system startup, they do not indicate an accurate status until the interface is configured. |
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Note If the system does not complete this verification process, see "Troubleshooting the Installation." |
Posted: Thu Nov 20 07:29:39 PST 2003
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