Table Of Contents
Installing WLSE Express Hardware
Preparing to Install WLSE Express Hardware
Maintaining Safety
Warnings and Cautions
General Precautions
Maintaining Safety with Electricity
Protecting Against Electrostatic Discharge
Preventing EMI
Preparing Your Site for Installation
Environmental
Choosing a Site for Installation
Grounding the System
Creating a Safe Environment
AC Power
Cabling
Precautions for Rack-Mounting
Precautions for Products with Modems, Telecommunications, or Local Area Network Options
Tools and Equipment Required for Installation
Installing WLSE Express Hardware
Installation Quick Reference
Installing the WLSE Express in a Rack
Connecting the WLSE to the AC Power Source
Connecting Cables
Installing WLSE Express Hardware
This chapter contains safety and site preparation information and procedures for installing CiscoWorks Wireless LAN Solution Engine (WLSE) Express hardware. The chapter contains the following major topics:
•
Preparing to Install WLSE Express Hardware
•Installing WLSE Express Hardware
Preparing to Install WLSE Express Hardware
This section contains the following topics:
•Maintaining Safety
•Preparing Your Site for Installation
•Precautions for Rack-Mounting
•Precautions for Products with Modems, Telecommunications, or Local Area Network Options
•Tools and Equipment Required for Installation
Maintaining Safety
This section provides safety information for installing this product.
Warnings and Cautions
Read the installation instructions in this document before you connect the system to its power source. Failure to read and follow these guidelines could lead to an unsuccessful installation and possible damage to the system and components.
You should observe the following safety guidelines when working with any equipment that connects to electrical power or telephone wiring. They can help you avoid injuring yourself and damaging the WLSE.
Warnings and cautions are provided to help you prevent damage to the devices or injury to yourself.
General Precautions
Observe the following general precautions when using and working with your system:
•Keep your system components away from radiators and heat sources, and do not block cooling vents.
•Do not spill food or liquids on your system components, and never operate the product in a wet environment. If the computer gets wet, see the appropriate chapter in your troubleshooting guide or contact the Cisco Technical Assistance Center. For instructions on contacting the Technical Assistance Center, see Obtaining Technical Assistance.
•Do not push any objects into the openings of your system components. Doing so can cause fire or electric shock by shorting out interior components.
•Position system cables and power cables carefully; route system cables and the power cable and plug so that they cannot be stepped on or tripped over. Be sure that nothing rests on your system components' cables or power cable.
•Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. Always follow your local/national wiring rules.
•To help avoid possible damage to the system board, wait 5 seconds after turning off the system before removing a component from the system board or disconnecting a peripheral device from the computer.
Maintaining Safety with Electricity
Follow these guidelines when working on equipment powered by electricity:
•Contact the Cisco Technical Assistance Center if any of the following conditions occur:
–The power cable or plug is damaged.
–An object has fallen into the product.
–The product has been exposed to water.
–The product has been dropped or damaged.
–The product does not operate correctly when you follow the operating instructions.
•Use the correct external power source. Operate the product only from the type of power source indicated on the electrical ratings label. If you are not sure of the type of power source required, consult the Cisco Technical Assistance Center or a local power company.
•Use only approved power cables. If you have not been provided with a power cable for your computer or storage system or for any AC-powered option intended for your system, purchase a power cable that is approved for use in your country. The power cable must be rated for the product and for the voltage and current marked on the product's electrical ratings label. The voltage and current rating of the cable should be greater than the ratings marked on the product.
•To help prevent electric shock, plug the WLSE, components, and peripheral power cables into properly grounded electrical outlets. These cables are equipped with three-prong plugs to help ensure proper grounding. Do not use adapter plugs or remove the grounding prong from a cable.
•To help protect your system/components from sudden, transient increases and decreases in electrical power, use a surge suppressor, line conditioner, or uninterruptable power supply (UPS).
•Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. Always follow your local/national wiring rules.
Warning There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions. Statement 1015
Protecting Against Electrostatic Discharge
Static electricity can harm delicate components inside your computer. To prevent static damage, discharge static electricity from your body before you touch any of your computer's electronic components, such as the microprocessor. You can do so by touching an unpainted metal surface on the computer chassis.
As you continue to work inside the computer, periodically touch an unpainted metal surface to remove any static charge your body may have accumulated.
You can also take the following steps to prevent damage from electrostatic discharge (ESD):
•When unpacking a static-sensitive component from its shipping carton, do not remove the component from the antistatic packing material until you are ready to install the component in your computer. Just before unwrapping the antistatic packaging, be sure to discharge static electricity from your body.
•When transporting a sensitive component, first place it in an antistatic container or packaging.
•Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads and workbench pads.
Preventing EMI
When you run wires for any significant distance in an electromagnetic field, electromagnetic interference (EMI) can occur between the field and the signals on the wires. Note that:
•Bad plant wiring can result in radio frequency interference (RFI).
•Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal drivers and receivers in the system, and can even create an electrical hazard by conducting power surges through lines and into the system.
To predict and remedy strong EMI, consult RFI experts.
Preparing Your Site for Installation
This section describes the requirements your site must meet for safe installation and operation of your WLSE. Ensure that your site is properly prepared before beginning installation.
Environmental
When planning your site layout and equipment locations, keep in mind the precautions described in this section to help avoid equipment failures and reduce the possibility of environmentally caused shutdowns. If you are currently experiencing shutdowns or unusually high errors with your existing equipment, these precautions will help you isolate the cause of failures and prevent future problems.
Use the following precautions when planning the operating environment for your WLSE.
•Always follow the ESD-prevention procedures described in the Preventing EMI to avoid damage to equipment. Damage from static discharge can cause immediate or intermittent equipment failure.
•Make sure that the chassis cover is secure. The chassis is designed to allow cooling air to flow effectively within it. An open chassis allows air leaks, which could interrupt and redirect the flow of cooling air from internal components.
•Electrical equipment generates heat. Ambient air temperature might not be adequate to cool equipment to acceptable operating temperatures without adequate circulation. Make sure that the room in which you operate has adequate air circulation.
Choosing a Site for Installation
Warning This unit is intended for installation in restricted access areas. A restricted access area is where access can only be gained by service personnel through the use of a special tool, lock and key, or other means of security, and is controlled by the authority responsible for the location. Statement 1017
•Choose a site with a dry, clean, well-ventilated and air-conditioned area.
•Choose a site that maintains an ambient temperature of 10° to 35°C (50° to 95°F).
Grounding the System
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. Statement 1024
Creating a Safe Environment
Follow these guidelines to create a safe operating environment:
•Keep tools and chassis components off the floor and away from foot traffic.
•Clear the area of possible hazards, such as moist floors, ungrounded power extension cables, and missing safety grounds.
•Keep the area around the chassis free from dust and foreign conductive material (such as metal flakes from nearby construction activity).
AC Power
Ensure that the plug-socket combination is accessible at all times, because it serves as the main disconnecting device.
Warning The plug-socket combination must be accessible at all times, because it serves as the main disconnecting device. Statement 1019
Warning This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. Statement 1045
Warning The power supply must be placed indoors. Statement 331
Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. Statement 12
Cabling
Use the cables in the accessory kit to connect the WLSE's console port to a console or computer that is running a console program. In addition to the console cable, you must supply your own standard Ethernet cable to connect the WLSE to your network. For information detailing cable requirements, see Network Cable Requirements.
A structured wiring system provides a standardized way to wire a building for all types of networks for the WLSE to be installed. The main distribution frame links all the building's interior wiring and provides an interface connection to circuits coming from outside sources such as the local telephone company. Wiring hubs (peripherals for cabling installations) provide the connection logic unique to Fast Ethernet cables that the WLSE uses. Unshielded twisted pair (UTP) copper wire is used to connect the WLSE and distributes the network connections to wall jacks near each piece of network equipment.
Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001
Warning Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network voltages. Statement 1041
Precautions for Rack-Mounting
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:
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006
Observe the following precautions for rack stability and safety. Also see the rack installation documentation accompanying the rack for specific warning and/or caution statements and procedures.
Servers, storage systems, and appliances are considered to be components in a rack. Thus, "component" refers to any server, storage system, or appliance, as well as to various peripherals or supporting hardware.
•Do not move large racks by yourself. Due to the height and weight of the rack, a minimum of two people are needed to accomplish this task.
•Make sure the rack is level and stable before extending a component from the rack.
•Do not overload the AC supply branch circuit that provides power to the rack. The total rack load should not exceed 80 percent of the branch circuit rating.
•Ensure that proper airflow is provided to components in the rack.
•Do not step on or stand on any system/component when servicing other system/components in a rack.
•This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
•When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
•If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.
Precautions for Products with Modems, Telecommunications, or Local Area Network Options
Observe the following guidelines when working with options:
•Do not connect or use a modem or telephone during a lighting storm. There may be a risk of electrical shock from lightning.
•Never connect or use a modem or telephone in a wet environment.
•Do not plug a modem or telephone cable into the Ethernet connector.
•Disconnect the modem cable before opening a product enclosure, touching or installing internal components, or touching an uninsulate4d modem cable or jack.
•Do not use a telephone line to report a gas leak while you are in the vicinity of the leak.
Tools and Equipment Required for Installation
You need the following tools and equipment to install the WLSE:
•Number 2 Phillips screwdriver
•Tape measure and level
•Antistatic mat or antistatic foam
•ESD grounding strap
Installing WLSE Express Hardware
This section provides instructions for installing the WLSE in a rack. The rack must be properly secured to the floor, ceiling, or upper wall, and where applicable, to adjacent racks. The rack should be secured using floor and wall fasteners and bracing specified or approved by the rack manufacturer or by industry standards. See the rack manufacturer's installation documentation for precautionary warnings and information before attempting this installation.
This section contains the following topics:
•Installation Quick Reference
•Installing the WLSE Express in a Rack
•Connecting the WLSE to the AC Power Source
•Connecting Cables
Installation Quick Reference
Table 2-1 provides a high-level overview of hardware installation.
Installing the WLSE Express in a Rack
Before installing the WLSE in a rack, read Preparing Your Site for Installation 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.
Perform the following steps when installing and servicing the WLSE:
•Disconnect all power and external cables before installing the system.
•Install the system in compliance with your local and national electrical codes:
–United States: National Fire Protection Association (NFPA) 70; United States National Electrical Code.
–Canada: Canadian Electrical Code, Part, I, CSA C22.1.
–Other countries: If local and national electrical codes are not available, see IEC 364, Part 1 through Part 7.
•Do not work alone under potentially hazardous conditions.
•Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
•Do not attempt to install the WLSE into a rack that has not been securely anchored in place. Damage to the system and personal injury may result.
•Due to the size and weight of the computer system, never attempt to install the computer system by yourself.
See Precautions for Rack-Mounting for additional safety information on rack installation.
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:
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006
Connecting the WLSE to the AC Power Source
Warning This equipment must be grounded. 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. Statement 1024
Connect the AC power receptacle to the AC power source with the provided power cable.
Connecting Cables
Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.
Use unshielded twisted pair (UTP) copper wire Ethernet cable, with standard RJ-45 compatible plugs, to connect the WLSE to the network.
Plug the network connection into the Ethernet port.
If desired, connect a console to the console/serial port on the back panel using the supplied serial cable and, if necessary, the DB-9-to-RJ-45 console adapter.
