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This chapter describes how to install the chassis, connect the cables, and power up the chassis at your site. This chapter contains the following sections:
 | Caution Before installing the chassis in a rack, read the section "Safety Recommendations" in this chapter to become familiar with the proper site and environmental conditions. Failure to read and follow these guidelines can lead to an unsuccessful installation and possible damage to the system and components. |
 | Warning
Read the installation instructions before you connect the system to its power source. |
| Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. |
| 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. |
Install the equipment in compliance with the following national codes:
Three people are required to lift the chassis. Whenever you lift the chassis or any heavy object, follow these guidelines:
| Warning Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury and equipment damage. |
Follow theses guidelines when working with any electrical equipment:
| Warning Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available. |
In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source but still connected to telephone wiring or other network cabling.
| Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
Electrostatic discharge (ESD) damage, which occurs when electronic modules or components are improperly handled, can result in complete or intermittent failures. The route processor, switch modules, and line modules each consist of a printed circuit card that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Handle the carriers by the carrier edges only; never touch the modules or connector pins. Although the metal carrier helps to protect the modules from ESD, use a preventive antistatic strap whenever you handle the route processor, switch modules, or line modules.
Follow these guidelines to prevent ESD damage:
For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms).
You need the following tools and equipment to install the chassis:
If you are installing the chassis in a rack, you also need the following:
To install the chassis in a rack, follow these steps:
| Warning To prevent the chassis 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. |
Step 1 Prepare for installation as follows:
(a) Remove the rubber feet from the chassis, if needed, to ensure a better fit in the rack. Place the chassis face down on a flat surface. Remove the screw that holds each foot.
(b) Place the chassis on the floor or on a sturdy table as close as possible to the rack. Leave enough clearance so that you can move around the chassis.
(c) 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 19.25 inches (48.9 cm) but not greater than 32 inches (81.3 cm).
(d) 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 17.25 inches [43.8 cm] wide and must fit between the mounting posts.)
(e) Open the rack-mount kit.
| Caution If the rack is on wheels, ensure that the brakes are engaged or that the rack is otherwise stabilized. |
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:
Step 2 Install the shelf brackets as follows:
(a) Position the shelf brackets in the rack. (See Figure 3-3.)
(b) Secure the shelf brackets by using six (three per side) 12 -24 or 10-32 screws.
(c) Attach the crossbar bracket to the back of the shelf brackets using two M3 screws.
Step 3 Install the L brackets by attaching the left and right L brackets using the ten M3 Phillips countersunk-head screws provided in the rack-mount kit.
(See Figure 3-4.)
Step 4 Install the chassis in the rack as follows:
| Warning Three 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. |
(a) With one 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. To prevent injury, avoid sudden twists or moves.
(b) Position the chassis in the rack as follows (see Figure 3-5):
If the front of the chassis (front panel) is at the front of the rack, insert the rear of the chassis between the mounting posts.
If the rear of the chassis is at the front of the rack, insert the front of the chassis between the mounting posts.
(c) Place the chassis on the shelf brackets.
(d) Align the mounting holes in the L bracket with the mounting holes in the equipment rack.
(e) A third person should install the ten (five per side) 12-24 or 10-32 screws through the elongated holes in the L bracket and into the threaded holes in the mounting post.
(f) Use a tape measure and level to ensure that the chassis is installed straight and level.
Step 5 Check the release levers to ensure that all modules are installed securely.
Step 6 Tighten any loose captive installation screws on all modules.
This section describes how to connect a system (earth) ground to the switch. Two grounding holes are provided on the chassis frame for the grounding hole location. See Figure 3-6.
To connect the switch to an earth ground, you need the following tools and materials:
You must complete this procedure before connecting the system power or turning on the switch.
To attach the grounding lug and cable to the grounding pad, perform these steps:
Step 1 Use a wire-stripping tool to remove approximately 0.75 inch (19 mm) of the covering from the end of the grounding wire.
Step 2 Insert the stripped end of the grounding wire into the open end of the grounding lug.
Step 3 Use a crimping tool to secure the grounding wire in place in the grounding lug.
Step 4 Locate the grounding pad on the switch (See Figure 3-6.).
Step 5 Remove the label that covers the grounding pad.
Step 6 Place the grounding lug against the grounding pad.
Step 7 Insert two screws through the holes in the grounding lug and the grounding pad. Ensure that the grounding lug will not interfere with other switch hardware or rack equipment.
Step 8 Install the locking washers and nuts; tighten them to secure the grounding lug to the grounding pad.
Step 9 Prepare the other end of the grounding wire and connect it to an appropriate grounding point in your site to ensure adequate earth ground for the switch.
You need the following tools to remove and install a power supply:
To install an AC-input or DC-input power supply, follow these steps:
| Warning Voltage is present on the backplane when the system is operating. To reduce risk of an electric shock, keep hands and fingers out of the power supply bays and backplane areas. |
Step 1 Grasp the power supply handle with one hand. Place your other hand underneath to support the bottom of the supply, as shown in Figure 3-7.
Step 2 Place the power supply into the power supply bay and push the power supply into the bay until the power supply faceplate is flush with the cover.
Step 3 Tighten the captive installation screw by turning it clockwise.
For detailed power supply installation, removal, and maintenance information, see the section "Removing and Installing Power Supplies" in the chapter
"Maintaining the Chassis."
Handling a Power Supply
If your system has problems starting up, use the information in this section to help isolate the cause. Problems with the initial startup are usually caused by an interface processor or power supply that has become dislodged from the backplane or chassis power connector. Although overtemperature conditions rarely occur at initial startup, the environmental monitoring functions are included because they also monitor DC line voltages. This publication covers the system hardware installation only. At the initial system boot, you should verify the following:
When all of these conditions are met, the hardware installation is complete and you can begin software configuration of the Catalyst 8540 route processor. Refer to the following publications for detailed software configuration information:
If you are unable to easily solve the problem, contact a customer service representative for assistance and further instructions. To help your service provider assist you, gather the following information before you call:
Posted: Fri Aug 25 11:07:39 PDT 2000
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