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This chapter describes the procedures to rack-mount the Catalyst 2900 at your site.
A rack-mount kit is included for mounting the switch in a standard 19-inch equipment rack with two unobstructed outer posts. This kit is not suitable for use with other racks, such as telco-type equipment racks, or those with obstructions (such as a power strip) that could impair access to the switch modules and power supplies.
 | Caution Before installing the chassis in a rack, read the section "Safety with Electricity" in the chapter "Installation Overview" to familiarize yourself with the proper site and environmental conditions. Failure to read and follow these guidelines could lead to an unsuccessful installation and possible damage to the system and components. |
Use the following procedure for attaching the rack-mount kit and installing the switch in a wiring closet rack. Two or more people are needed to perform this procedure.
Be sure you have at least three or four feet of clearance behind the rack for maintenance. The intake and exhaust ports for cooling air are located on the front and rear and both sides of the chassis, so multiple switches can be stacked with little or no clearance in a rack. The chassis is 3.4 inches (8.5 cm) high.
Before rack-mounting the Catalyst 2900, confirm that your rack-mount configuration conforms to the following criteria:
| Caution Before you mount the switch in a rack, make sure of the following: the rack is secure and in no danger of falling over; the area around the rack does not exceed a maximum ambient temperature of 104°F (40°C); sufficient airflow exists around the rack. |
 | Warning Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift with both hands. To prevent injury, keep your back straight and lift with your legs, not your back. To prevent damage to the chassis and components, never attempt to lift the chassis with the handles on the power supplies or on the interface processors, or by the plastic panels on the front of the chassis. These handles were not designed to support the weight of the chassis. |
Refer to the section "Lifting the Chassis Safely" in the chapter "Installation Overview."
The following are tools and equipment you will need to install the chassis:
If you are installing the chassis in a rack, you will also need the following:
The rack-mount kit is for a standard 19-inch rack with a minimum depth (between the front and rear mounting posts) of 19 1/4 inches and a maximum depth of 32 inches. The width between the two front equipment mounting strips (left front and right front) must be at least 17 3/4 inches. Two L brackets, which you attach to either the front or back of the chassis, and the mounting posts connect the chassis to the rack. Some equipment racks provide a power strip along the length of one of the rear posts. If your rack has this feature, consider the position of the strip when planning fastener points, and before you install the L brackets on the chassis, determine whether you will install the chassis from the front or the rear of the rack.
Take the following steps to attach the two L brackets to the switch chassis:
Step 1 Place the chassis on the floor or on a sturdy table as close as possible to the rack, with clearance to allow you to move around the chassis.
Step 2 Use a 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 1/4 inches, but not greater than 32 inches.
Step 3 Measure the space between the inner edges of the left front and right front mounting posts to ensure that it is 17 3/4 inches wide. (The chassis is 17 1/4 inches wide and must fit between the mounting posts.)
Step 4 Open the rack-mount kit and refer to the component checklist in Table 3-1 to verify that all parts are included.
| Quantity | Part Description | Received |
|---|---|---|
| 2 | L brackets (left and right) | |
| 12 | M4 Phillips countersunk-head screws | |
| 6 | 12-24 x 3/4-inch Phillips binder-head screws | |
| 6 | 10-32 x 3/4-inch slotted binder-head screws |
Step 5 Remove the six cover attachment screws from either the front or the rear of the switch depending on your installation. See Figure 3-1.
Step 6 Attach the left and right L brackets using the six M4 Phillips countersunk-head screws provided in the rack-mount kit.
The L brackets attach the chassis to the front mounting posts. You can mount the L brackets on either the front or rear of the chassis, whichever end will be in the front of the rack.
Follow these steps to install the switch in an open rack that enables you to slide the chassis in from the front.
| Warning Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift with both hands. To prevent injury, keep your back straight and lift with your legs, not your back. To prevent damage to the chassis and components, never attempt to lift the chassis with the handles on the power supplies or on the interface processors, or by the plastic panels on the front of the chassis. These handles were not designed to support the weight of the chassis. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings." |
Step 1 Two people are required to perform this step.While referring to Figure 3-2, with a person positioned at either side of the chassis, grasp the bottom edge of the chassis with one hand near the front and the other near the back. Slowly lift the chassis in unison. Avoid sudden twists or moves to prevent injury.
Step 2 Position the chassis in the rack as follows:
Step 3 A third person should install the ten-32 x 3/4 inch slotted binder-head mounting screws through the elongated holes in the L bracket and into the threaded holes in the mounting post.
Step 4 Use your tape measure and level to ensure that the chassis is installed straight and level.
Step 5 Make sure that your path to the rack is unobstructed.
| Warning Use your tape measure and level to ensure that the chassis is installed straight and level.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 concludes the rack-mount installation.
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