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Cisco Catalyst 5000 Series Switches

Center Rack-Mount Kit Installation Note

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Center Rack-Mount Kit Installation Note

Center Rack-Mount Kit Installation Note

Product Number: WS-C5097(=)

This installation note contains instructions on how to install the Catalyst family of switches in a telco-style rack using the center rack-mount kit, WS-C5097(=).

Note Use this kit in place of the rack-mount brackets shipped with the chassis, and only when center rack-mounting a switch in a telco-style rack.

For a complete description of switch hardware installation and maintenance procedures, refer to the appropriate hardware installation guide.

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Documentation Contents

This document contains the following sections:

Installation Prerequisites

This section provides safety recommendations you need to be aware of as you use the center rack-mount kit to install your switch in a telco-style rack. Also included in this section are center rack-mounting guidelines and a list of tools you need to perform kit installation.

Safety Recommendations

Safety recommendations appear throughout this installation note in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement.

Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the appendix "Translated Safety Warnings" in the appropriate hardware installation guide.

Center Rack-Mounting Guidelines

Before center rack-mounting the switch, ensure the following:

  • The telco-style rack is the proper size.

    • The width of the rack between the posts must be 17.75 inches (45.09 cm).

    • The rack must have sufficient vertical clearance to insert the chassis. The chassis heights are as follows:

    5-slot switches---10.4 inches (26.4 cm)
    9-slot switches---20 inches (50.8 cm)
    13-slot switches---25 inches (63.5 cm)
  • The telco-style rack is stable and in no danger of falling over.

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:
  • We recommend that you bolt the telco-style rack to the floor.

  • Mount the switch at the bottom of the rack if it is the only unit in the rack.

  • Install heavier equipment in the lower half of the rack to maintain a low center of gravity and prevent the rack from becoming top-heavy and tipping over.

  • Install the stabilizers before mounting or servicing the switch in the rack (if the rack is provided with stabilizing devices).

  • The equipment rack is properly ventilated.

Warning To prevent the switch from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 104°F (40°C). To prevent airflow restriction, allow at least 3  inches (7.6  cm) of clearance around the ventilation openings.
  • Ensure that the ambient temperature of the rack environment does not exceed a maximum temperature of 104°F (40°C).

  • Note that equipment near the bottom of the rack might generate excessive heat that is drawn upward and into the intake ports of equipment above, leading to overtemperature conditions in the chassis at or near the top of the rack.

  • Consider the equipment and cabling that is already installed in the rack. Ensure that cables from other equipment will not obstruct the airflow through the chassis or impair access to the power supplies or switching modules. Route cables away from field-replaceable components to avoid disconnecting cables unnecessarily to perform equipment maintenance or upgrades.

  • Allow at least 3 to 4 feet (91.4 to 121.9  cm) of clearance behind the rack for maintenance and removal of switch assemblies. If the rack is mobile, you can push it back within 1  foot  (30.5  cm) of a wall or cabinet for normal operation and pull it out when necessary for maintenance.

Lifting the Chassis Safely

The switch chassis is not intended to be moved frequently. Before you install the chassis, ensure that your site is properly prepared. Proper preparation keeps you from having to move the chassis later to accommodate power sources and network connections.

A minimum of two people are required to lift a chassis. Whenever you lift the chassis or any heavy object, follow these guidelines:

  • Never attempt to lift a chassis by yourself. The size and weight of a chassis requires two people to lift and move it safely without causing injury or damaging the equipment.

  • Ensure that your footing is solid, and balance the weight of the chassis between your feet.

  • Lift the chassis slowly; never move suddenly or twist your body as you lift.

  • Keep your back straight and lift with your legs, not your back. If you must bend down to lift the chassis, bend at the knees, not at the waist, to reduce the strain on your lower back muscles.

  • Leave all switch field-replaceable units (FRUs) installed (such as switching modules, power supplies, and fan assembly).

  • Always disconnect all external cables before lifting or moving the chassis.

Required Tools

You will need the following tools to install the center rack-mount kit on your five-slot chassis. If you need additional parts or assistance, contact your technical support representative.

  • Number 1 Phillips screwdriver

  • Number 2 Phillips screwdriver

  • Tape measure (optional)

  • Level (recommended)

Center Rack-Mount Kit Contents

The contents of the center rack-mount kit, WS-C5097(=), are shown in Figure 1 and listed in Table 1.


Figure 1: Center Rack-Mount Kit Contents


Note In Figure 1, the screws are shown actual size to aid in their identification.


Table 1: Center Rack-Mount Kit Contents
Quantity Part Description and Usage

2

Mounting bracket. There is one left-side mounting bracket and one right-side mounting bracket included in the kit. One bracket is attached to each side of the switch chassis using M4 screws.

8

M4 x 10-mm Phillips countersunk-head screws. Used to attach the center rack-mount brackets to the five-slot chassis.

12

M4 x 12-mm Phillips pan-head screws. Used to attach the center rack-mount brackets to the 9- and 13-slot chassis.

8

10-32 x 3/4-inch Phillips binder-head screws. Used to attach the center rack-mount brackets to a telco-style rack.

8

12-24 x 3/4-inch Phillips binder-head screws1. Used to attach the center rack-mount brackets to a telco-style rack.
112-24 x 3/4-inch screws are provided in the center rack-mount kit if your telco-style rack requires their use.


Center Rack-Mounting a Five-Slot Chassis

Perform this procedure to center rack-mount a five-slot chassis in a telco-style rack.

Note The procedure is the same for both the AC- and DC-input power supply models. Figure  2, Figure  3, and Figure  4 reflect the AC-input power supply model.

Step 1 Prepare for installation as follows:

(a) Place the chassis on the floor or on a sturdy table as close as possible to the rack with enough clearance to allow you to move around the chassis.

(b) Measure the space between the inner edges of the left and right mounting posts to ensure that it is 17.75  inches (45.09  cm) wide. (The chassis is 17.25 inches [43.8  cm] wide and must fit between the mounting posts.)

(c) Open the center rack-mount kit. Check the kit contents list in Table 1 to verify that all parts are included.

Step 2 Perform these steps to attach the center rack-mount brackets to the five-slot chassis.

(a) Remove eight M4 pan-head screws from the switch side cover panels (see Figure 2).

(b) Position one bracket on the chassis as shown in Figure 3.

Note A left-side and a right-side mounting bracket are included in the kit. Make sure you place the left-side mounting bracket on the left side of the chassis and place the right-side mounting bracket on the right side of the chassis, as shown in Figure 3.

(c) Attach the bracket to the chassis with four M4 Phillips countersunk-head screws supplied with the center rack-mount kit.

(d) Repeat Steps b and c for the second bracket.

(e) Attach the cable guide, if needed, using three M3 screws provided in the cable management kit that you received in the accessories box shipped with your switch. Attach the cable guide to the right side center rack-mount bracket to prevent the cables from obscuring module LEDs (see Figure 3).


Figure 2: Five-Slot Chassis: Removing the Screws from the Chassis



Figure 3: Five-Slot Chassis: Attaching the Center Rack-Mounting Brackets and the Cable Guide


Step 3 Perform these steps to install the chassis in the rack. You should have a third person assist you with this step.

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. These handles were not designed to support the weight of the chassis.

(a) With a person standing at each 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.

Note Place a level on top of the chassis to align and level the chassis in the rack.

(b) Align the mounting holes in the mounting bracket with the mounting holes in the telco-style rack. Make sure that the chassis is level in the rack.

(c) Secure the chassis by using eight (four per side) 10-32 or 12-24 screws through the elongated holes in the mounting bracket and the threaded holes in the telco-style rack post as shown in Figure 4.


Figure 4: Five-Slot Chassis: Installing the Switch in a Telco-Style Rack


Center Rack-Mounting a Nine-Slot Chassis

Use this procedure to center rack-mount a nine-slot chassis in a telco-style rack.

Note The procedure is the same for both the AC- and DC-input power supply models. Figure 5 reflects the AC-input power supply model.

Step 1 Prepare for installation as follows:

(a) 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.

(b) Measure the space between the inner edges of the left and right mounting posts to ensure that it is 17.75 inches (45.09 cm) wide. (The chassis is 17.25 inches [43.8  cm] wide and must fit between the mounting posts.)

(c) Measure the vertical space in the rack. Ensure that there is at least 20  inches (50.8  cm) of space to install the chassis.

(d) Open the center rack-mount kit. Check the kit contents list in Table 1 to verify that all parts are included.

Step 2 Perform these steps to attach the center rack-mount brackets to the nine-slot chassis:

(a) Position one of the brackets on the chassis as shown in Figure 5.

Note A left-side and a right-side mounting bracket are included in the kit. Make sure you place the left-side mounting bracket on the left side of the chassis and place the right-side mounting bracket on the right side of the chassis, as shown in Figure 5.

(b) Attach the bracket to the chassis with six M4 Phillips pan-head screws.

Caution To prevent possible damage to the switch, make sure that the bottom of the chassis is resting on the center rack-mount bracket rail before you tighten the six screws.

(c) Repeat Steps a and b for the second bracket.

(d) Attach the cable guides, if needed, using eight M3 screws (four for each cable guide) provided in the cable management kit that you received in the accessories box shipped with your switch. Attach the cable guides to the chassis above the center rack-mount brackets (see Figure 5).


Figure 5: Nine-Slot Chassis: Attaching the Center Rack-Mounting Brackets and the Cable Guides


Step 3 Perform these steps to install the nine-slot chassis in the telco-style rack. You should have a third person assist you with this step.

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. These handles were not designed to support the weight of the chassis.

(a) With a person standing at each 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.

Note Place a level on top of the chassis to align and level the chassis in the rack.

(b) Position the chassis in the rack as shown in Figure 6.

(c) Align the mounting holes in the two brackets with the mounting holes in the telco-style rack. Make sure the chassis is level in the rack.

(d) While two people support the chassis in the rack, a third person should install eight (four per side) 10-32 or 12-24 screws through the elongated holes in the mounting bracket and into the threaded holes in the telco-style rack post as shown in Figure 6.


Figure 6: Nine-Slot Chassis: Installing the Switch in a Telco-Style Rack


Center Rack-Mounting a 13-Slot Chassis

Use this procedure to center rack-mount a 13-slot chassis in a telco-style rack.

Note The procedure is the same for both the AC- and DC-input power supply models. Figure 7 reflects the AC-input power supply model.

Step 1 Prepare for installation as follows:

(a) 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.

(b) Measure the space between the inner edges of the left and right mounting posts to ensure that it is 17.75 inches (45.09 cm) wide. (The chassis is 17.25 inches [43.8  cm] wide and must fit between the mounting posts.)

(c) Measure the vertical space in the rack. Ensure that there is at least 30  inches (76.2  cm) of space to install the chassis.

(d) Open the center rack-mount kit. Check the kit contents list in Table 1 to verify that all parts are included.

Step 2 Perform these steps to attach the center rack-mount brackets to the 13-slot chassis.

(a) Position one of the brackets on the chassis as shown in Figure 7.

Note A left-side and a right-side mounting bracket are included in the kit. Make sure you place the left-side mounting bracket on the left side of the chassis and place the right-side mounting bracket on the right side of the chassis, as shown in Figure 7.

(b) Attach the bracket to the chassis with six M4 Phillips pan-head screws.

Caution To prevent possible damage to the switch, make sure that the bottom of the chassis is resting on the center rack-mount bracket rail before you tighten the six screws.

(c) Repeat Steps a and b for the second bracket.

(d) Attach the cable guides, if needed, using ten M3 screws (five for each cable guide) provided in the cable management kit that you received in the accessories box shipped with your switch. Attach the cable guides to the chassis above the center rack-mount brackets (see Figure 7).


Figure 7: 13-Slot Chassis: Attaching the Center Rack-Mounting Brackets and the Cable Guides


Note The procedure is the same for both the AC- and DC-input power supply models. Figure 8 reflects the AC-input power supply model.

Step 3 Perform these steps to install the 13-slot chassis in the telco-style rack.You should have a third person assist you with this step.

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. These handles were not designed to support the weight of the chassis.

(a) With a person standing at each 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.

Note Place a level on top of the chassis to align and level the chassis in the rack.

(b) Position the chassis in the rack as shown in Figure 8.

(c) Align the mounting holes in the two brackets with the mounting holes in the telco-style rack. Make sure the chassis is level in the rack.

(d) While two people support the chassis in the rack, a third person should install eight (four per side) 10-32 or 12-24 screws through the elongated holes in the mounting bracket and into the threaded holes in the telco-style rack post as shown in Figure 8.


Figure 8: 13-Slot Chassis: Installing the Switch in a Telco-Style Rack


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