Cisco Wide Area Application Engine 7326 Hardware Installation Guide
Chapter 2 - Preparing to Install the Wide Area Application Engine
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Preparing to Install the Wide Area Application Engine

Table Of Contents

Preparing to Install the Wide Area Application Engine

Safety Warnings

Safety Guidelines

General Precautions

System Reliability Considerations

Working Inside the WAE with the Power On

Protecting Against Electrostatic Discharge

Preparing to Install the Wide Area Application Engine

This chapter contains important safety information you should know before working with the WAE. Use the guidelines in this chapter to ensure your own personal safety and to help protect your appliance from potential damage.

This chapter contains the following sections:

Safety Warnings

Safety Guidelines

Note Read the Regulatory Compliance and Safety Information for the Cisco Content Networking Product Series document and the Site Preparation and Safety Guide that came with your appliance before you begin the installation.

Safety Warnings

Before you install the WAE, observe the following safety warnings.

Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030

Warning Read the installation instructions before connecting the system to the power source. Statement 1004

Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. Statement 1

Warning This unit might have more than one power supply connection. All connections must be removed to de-energize the unit. Statement 1028

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 37

Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021

Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors). Statement 13

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

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001

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. Statement 43

Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046

Warning The safety cover is an integral part of the product. Do not operate the unit without the safety cover installed. Operating the unit without the cover in place will invalidate the safety approvals and pose a risk of fire and electrical hazards. Statement 117

Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement 1029

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

Warning Ultimate disposal of this product should be handled according to all national laws and regulations. Statement 1040


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

Safety Guidelines

To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment, observe the precautions in this section.

General Precautions

Observe the following general precautions for using and working with your system:

Observe and follow service markings. Do not service any Cisco product except as explained in your system documentation. Opening or removing covers that are marked with the triangular symbol with a lightning bolt may expose you to electrical shock. Components inside these compartments should be serviced only by an authorized service technician.

If any of the following conditions occur, unplug the product from the electrical outlet and replace the part or contact your authorized service provider:

The power cable, extension cord, 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.

Keep your system components away from radiators and heat sources. Also, do not block cooling vents.

Do not spill food or liquids on your system components, and never operate the product in a wet environment.

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.

Use the product only with other Cisco-approved equipment.

Allow the product to cool before removing covers or touching
internal components.

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 your service representative or local power company.

Use only approved power cables. If you have not been provided with a power cable for your Content Engine 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 system 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. If you must use an extension cord, use a three-wire cord with properly grounded plugs.

Observe extension cord and power strip ratings. Make sure that the total ampere rating of all products plugged into the extension cord or power strip does not exceed 80 percent of the extension cord or power strip ampere ratings limit.

Do not use appliance or voltage converters or kits sold for appliances with your product.

To help protect your system components from sudden, transient increases and decreases in electrical power, use a surge suppressor, line conditioner, or uninterruptible power supply (UPS).

Position cables and power cords carefully; route cables and the power cord and plug so that they cannot be stepped on or tripped over. Be sure that nothing rests on your system components' cables or power cord.

Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. Always follow your local or national wiring rules.

System Reliability Considerations

To help ensure proper cooling and system reliability, make sure the following occurs:

Each of the drive bays has either a drive or a filler panel installed.

Each of the power-supply bays has a power supply or a power supply filler panel installed.

For rack configurations, make sure that space is available around the appliance to enable the cooling system to work properly. See the documentation that comes with the rack for additional information.

The appliance cover is in place during normal operation.

The air baffle cover over the microprocessors remains closed during normal operation.

The air baffle is installed between the fans and the power supply.

A removed hot-swappable drive is replaced within 2 minutes of removal.

Cables for optional adapters are routed according to the instructions provided with the adapters.

A failed fan is replaced within 48 hours.

The appliance is powered down and the power cords are disconnected before you open the air baffle cover.

The air baffle assembly is always installed in the appliance except when you are installing or removing the components that are located under the air baffle cover.

When the air baffle assembly is installed in the appliance, the air baffle cover is always closed.

Microprocessor socket 2 always contains either a microprocessor baffle or a microprocessor.

Working Inside the WAE with the Power On

The WAE is designed to operate safely with the cover removed for short periods (less than 30 minutes). You might need to remove the cover while the power is on, for example, to observe the Light Path diagnostic LEDs when troubleshooting. When you work inside an appliance that is powered on, follow these guidelines:

Avoid loose-fitting clothing on your forearms. Button long-sleeved shirts before working inside the appliance; do not wear cuff links while you are working inside the appliance.

Do not allow your necktie or scarf to hang inside the appliance.

Remove jewelry, such as bracelets, necklaces, rings, and loose-fitting wristwatches.

Remove items from your shirt pocket (such as pens or pencils) that could fall into the appliance as you lean over it.

Avoid dropping any metallic objects, such as paper clips, hairpins, or screws, into the appliance.

Protecting Against Electrostatic Discharge

Static electricity can harm delicate components inside the appliance. To prevent static damage, discharge static electricity from your body before you touch any of your system's electronic components. You can do so by touching an unpainted metal surface on the chassis.

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 system. 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.

Handle the device carefully, holding it by its edges or its frame.

Do not touch solder joints, pins, or exposed printed circuitry.

Do not leave the device where others can handle and possibly damage the device.

Take additional care when handling devices during cold weather, because heating reduces indoor humidity and increases static electricity.