Cisco Wide Area Application Engine 7341, 7371, and 674 Hardware Installation Guide
Installing the Wide Area Application Engine
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Installing the Wide Area Application Engine

Table Of Contents

Installing the Wide Area Application Engine

Rack-Mounting Considerations

Rack Requirements

Tools and Parts Required

Installing the Wide Area Application Engine

Installing the Chassis on a Tabletop

Connecting Cables

Connecting Power and Booting the System

Checking the LEDs

Removing or Replacing a WAE

Installing the Wide Area Application Engine

This chapter describes how to install a Wide Area Application Engine (WAE) in an equipment rack. It also provides general instructions for installing a WAE on a table or workbench. This chapter contains the following sections:

Rack-Mounting Considerations

Tools and Parts Required

Installing the Wide Area Application Engine

Connecting Cables

Connecting Power and Booting the System

Checking the LEDs

Removing or Replacing a WAE

Before you begin the installation, read Chapter 2, "Preparing to Install the Wide Area Application Engine" and the Regulatory Compliance and Safety Information for the Cisco Content Networking Product Series document.

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

Rack-Mounting Considerations

Before installing your WAE in a rack, review the following guidelines:

Two or more people are required to install the device in a rack.

Ensure that the room air temperature is below 95×F (35×C).

Do not block any air vents; usually 6 inches (15 cm) of space provides proper airflow.

Plan the device installation starting from the bottom of the rack.

Install the heaviest device in the bottom of the rack.

Do not extend more than one device out of the rack at the same time.

Remove the rack doors and side panels to provide easier access during installation.

Connect the WAE to a properly grounded outlet.

Do not overload the power outlet when installing multiple devices in the rack.

Caution Use safe practices when lifting.

Caution Do not place any object weighing more than 110 lb (50 kg) on top of rack-mounted devices.

Caution Install the device only in a rack cabinet with perforated doors.

Rack Requirements

Install your WAE in a rack that meets the following requirements:

Minimum depth of 2.76 inches (70 mm) between the front mounting flange and inside of the front door.

Minimum depth of 6.18 inches (157 mm) between the rear mounting flange and inside of the rear door.

Minimum depth of 28.27 inches (718 mm) and maximum depth of 30 inches (762 mm) between the front and rear mounting flanges to support the use of the cable-management arm.

Racks are marked in vertical increments of 1.75 inches (4.44 cm). Each increment is referred to as a rack unit (RU). A 1-RU device is 1.75 inches (4.44 cm) tall.

Tools and Parts Required

A sliding rail rack-mount kit is included in your shipping container accessory box. The rack-mount kit is suitable for mounting the WAE-7371, WAE-7341, and WAE-674 appliances in 19-inch (48.26-cm), 4-post equipment racks. (See the "Rack Requirements" section.)

You need the following tools for the installation:

Flat-blade screwdriver

Phillips screwdriver

Figure 3-1 shows the items that you need to install the WAE in your rack or cabinet. If any items are missing or damaged, contact your customer service representative.


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


Figure 3-1 Rack Installation Kit


Cable-management assembly


Cable Clamp (5)


Cable-management arm bracket


Rear of rail




Cable ties (5)


Cable strap (5)


M6 screws (5)


Cable-restraint bracket (2)


Front of rail


Slide rail (2)


Note The rack kit includes a left and a right slide rail.

Installing the Wide Area Application Engine

Place the WAE in the desired location. You can mount it in a rack or place it on a solid, stable surface. If you do not plan to install the appliance in an equipment rack, proceed to the "Installing the Chassis on a Tabletop" section.

To install the WAE in a rack, follow these steps:

Step 1 Push outward on the slide-rail latch (labeled 2 in Figure 3-2). Pull the latch back to open the slide rail. The latch will engage and stay open. Open the other end of the slide rail. Repeat the entire process for the other slide rail.

Note If you are installing the WAE in the top of the rack or directly under another device, remove the cable-management arm bracket from the cable-management assembly and install the cable-management arm bracket on the slide rail. Go to Step 6 to install the cable-management arm bracket, and continue with Step 2.

Figure 3-2 Latching the Slide Rails


Right slide rail


Slide rail latch

Step 2 Align the slide rail with the front mounting flange. Use the score mark on the slide rail (labeled 1 in Figure 3-3) to align the slide rail. Push outward on the slide rail latch to close the latch and secure the slide rail. Do the same for the front of the other slide rail. Align the slide rail with the rear mounting flange. The slide rail occupies the full height of the device. Close the latches to secure the rear of both the slide rails.

Note Make sure that the slide rails are securely seated on the mounting flanges. When the slide is secure, the slide rail pins protrude from the slide rails.

Figure 3-3 Aligning the Slide Rails


Slide rail score mark


Slide rail pins

Step 3 Extend the slide rails fully from the rack until the slide rails lock. Align the tabs on the slide rails (labeled 1 in Figure 3-4) with the matching inserts on the appliance and lower the appliance onto the slide rails.

Note Make sure that each slide rail tab is inserted in the matching insert on the appliance and that the appliance is resting on the top edge of the slide rail.

Figure 3-4 Inserting the WAE


Alignment tab (front)

Step 4 Carefully slide the WAE along the slide rails approximately 1 inch (2.54 cm) toward the rack to lock the WAE on the slide rails. (See Figure 3-5.)

Figure 3-5 Locking the WAE on the Slide Rails


Lock indicator


Slide Rail Hooks

Note When locked in position, an indicator (labeled 1 in Figure 3-5) is visible on each side of the appliance. To remove the appliance from the rack, lift up on the lock indicator and slide the appliance forward.

Step 5 Lift the locking levers (labeled 1 in Figure 3-6) on the slide rails and slide the appliance into the rack until it extends approximately 4 inches (10.16 cm) from the edge of the rack.

Figure 3-6 Sliding in the WAE


Locking levers

Step 6 Attach the cable-management assembly to the rear of the slide rail using a hinge pin (labeled 1 in Figure 3-7). Attach the free end of the cable-management assembly to the slide rail using a hinge pin.

Note If you installed the cable-management arm bracket in Step 1, complete the installation of the cable-management assembly.

Figure 3-7 Attaching the Cable-Management Assembly


Hinge pin


Slide rail


Left mounting flange


Step 7 Attach the power cords and other cables to the rear of the WAE (including keyboard, monitor, and mouse, if required). Attach the power cords to the cable-restraint bracket. Secure the cable-restraint bracket to the slide rail.

Use cable clamps to secure the cables across the rear of the WAE. Route the cables along the cable-management arm channel, securing them with cable straps.

Note Allow slack in all cables to avoid tension in the cables.

Step 8 Slide the WAE into the rack until the release latches lock into place. To slide the WAE out of the rack, press the release latches.

Note Insert the optional M6 screws (labeled 10 in Figure 3-1) in the front and rear of the appliance when moving the rack, or if you install the rack in a vibration-prone area.

To remove the WAE from the rack, reverse these instructions. Store these installation instructions with your WAE documentation for future use.

Installing the Chassis on a Tabletop

When you install a WAE on a workbench or tabletop, ensure that the surface is clean and in a safe location and that you have considered the following points:

The chassis should be installed off the floor. (Dust that accumulates on the floor is drawn into the interior of the chassis by the cooling fans. Excessive dust inside the WAE can cause overtemperature conditions and component failures.)

There must be approximately 19 inches (48.26 cm) of clearance at the front and rear of the chassis for accessing network cables or equipment.

The WAE will receive adequate ventilation (it is not being installed in an enclosed cabinet where ventilation is inadequate).

To install the WAE on a workbench or tabletop, follow these steps:

Step 1 Remove any debris and dust from the tabletop or workbench, as well as from the surrounding area. Also make sure that your path between the WAE and its new location is unobstructed.

Step 2 Attach the rubber feet to the bottom of the chassis. The rubber feet have an adhesive backing. Peel the protective tape off the adhesive and stick the feet to the bottom of a clean chassis surface. Place one foot in each corner.

Step 3 Place the chassis on the tabletop or workbench.

Step 4 Ensure that no exhaust air from other equipment will be drawn into the chassis. Also make sure that there is adequate clearance at the front and rear of the chassis.

Connecting Cables

To connect cables to your WAE, follow these steps:

Step 1 Power down the appliance before connecting cables to or disconnecting any cables from the appliance.

Step 2 See the documentation that comes with your optional equipment for additional cabling instructions. It might be easier for you to route the cables before you install specific optional equipment.

Step 3 See the cable identifiers that are printed on the cables that come with the WAE and options. Use these identifiers to connect the cables to the correct connectors.

Figure 1-2 shows the locations of the input and output connectors on your device.

Connecting Power and Booting the System

To connect power to your system, follow these steps:

Step 1 Review the information in the "Safety Guidelines" section on page 2-4.

Step 2 Plug a power cord into each power cord receptacle on the back of the WAE.

Note For the WAE-7371 and WAE-7341 you must connect a power cord to both power supplies. If only one power supply is connected, when you turn on the power, the system error LED lights and the system makes a loud noise.

Step 3 Connect the other end of each power cord to a power source at your installation site.

Step 4 Power up all externally connected devices.

Step 5 Press the power control button on the front of the WAE.

The system should begin booting. Once the operating system boots, you are ready to initialize the basic software configuration. (See the software configuration guide for details.)

Note While the WAE is powering up, the green power-on LED on the front of the WAE is on.

Checking the LEDs

When the WAE is up and running, observe the front panel LEDs (see Figure 1-1 and Table 1-1) to verify that your system is operating properly.

To troubleshoot using the LEDs, see Chapter 6, "Troubleshooting the System Hardware."

Removing or Replacing a WAE

To remove a WAE from your network, power it down, disconnect the power cords and network cables, and physically remove the chassis from the rack.

The WAE is in constant communication with the router on your network. When the router notices that the WAE is no longer responding to it, the router stops sending requests to the WAE. This action is transparent to users. If other WAEs are attached to the router, the router continues sending requests to the other WAEs.

When you remove a WAE, the pages that were cached on that device are no longer available to the router or other WAEs. You might see an increase in outgoing web traffic that might have otherwise been fulfilled by the WAE that you are removing. However, after a time, the router and other WAEs redistribute the load of web traffic.

If you remove the last WAE from your network, you can also disable WAE support on the router. However, this action is not necessary because leaving WAE support enabled when there are no WAEs attached has no effect on the router's performance.

To replace a WAE, remove it from the network, and then install a new WAE and configure it using the same configuration parameters (IP address and so forth) that you used for the removed WAE.