Cisco 4000 Series Rack-Mount and Wall-Mount Installation

Safety Recommendations

Follow these guidelines to ensure general safety:

• Keep the chassis area clear and dust-free during and after installation.
  

• Put the removed chassis cover in a safe place.
  

• Keep tools away from walk areas where you or others could fall over them.
  

• Do not wear loose clothing that could get caught in the chassis. Fasten your tie or scarf and roll up your sleeves.
  

• Wear safety glasses when working under any conditions that might be hazardous to your eyes.
  

• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
  

Safety with Electricity

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 objects to the terminals.

Follow these guidelines when working on equipment powered by electricity:

• Locate the emergency power-off switch in the room in which you are working. Then, if an electrical accident occurs, you can quickly shut the power OFF.
  

• Before working on the system, turn OFF the power and unplug the power cord.
  

• Disconnect all power before doing the following:
  

  • Installing or removing a router chassis
    

  • Working near power supplies
    

  • Performing a memory upgrade
    

• Do not work alone if potentially hazardous conditions exist.
  

• Never assume that power is disconnected from a circuit. Always check.
  

• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension cables, and missing safety grounds.
  

• If an electrical accident occurs, proceed as follows:
  

  • Use caution; do not become a victim yourself.
    

  • Turn OFF power to the system.
    

  • If possible, send another person to get medical aid. Otherwise, determine the condition of the victim and then call for help.
    

  • Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate action.
    

Required Tools and Parts

The following tools and parts are required for rack-mount and wall-mount procedures:

• Screwdriver, number 1 or number 2 Phillips
  

• Screwdriver, number 2 flat-blade
  

For wall-mounting, the following additional equipment is required:

• Plywood board (19 x 19 x 1/2 inch minimum size)
  

• Wood fasteners for attaching the board to the wall
  

Table 1 lists the parts contained in the standard rack-mount kit.

Table 1 : Standard Rack-Mount Kit Components

Quantity	Item
2	Rack-mount brackets
2	Short bracket extenders
2	Long bracket extenders
6	M3 machine screws
8	10-32 machine screws
8	8-32 flat-head machine screws
1	Installation diagram

Table 2 lists the parts contained in the telco rack-mount and wall-mount kit.

Table 2 : Telco Rack-Mount and Wall-Mount Kit Components

Quantity	Item
2	Telco rack-mount or wall-mount brackets
2	M3 machine screws
4	10-32 machine screws
8	8-32 flat-head machine screws
4	Hex-head wood screws (mounts chassis to plywood board)
1	Installation diagram

Overview of Rack-Mount and Wall-Mount Procedures

The Cisco 4000 series routers can be mounted in a standard 19-inch rack, a telco 19-inch rack, or on a wall. The procedures for the different mounting options involve removing the front panel and component tray from the chassis shell and then installing the empty shell in position before reinserting the component tray.

Warning Hazardous voltages may exist in or near the power supply, so use extreme caution when working near the power supply. Before starting any of these procedures, turn OFF power to the system, unplug the power cord, disconnect any cables at the ports, and connect your ESDpreventive wrist strap.

Old and New Versions of Chassis Shell

Cisco 4000 series routers have two chassis versions. (See Figure 1.) In the old version of the chassis, the rack-mount and wall-mount brackets are secured to the chassis with tabs located on the inside of the chassis shell. Newer versions of the chassis use screws to attach the brackets to the side of the chassis shell. The rack-mount and the wall-mount brackets supplied with this kit can be used with both types of chassis.

Figure 1 : Old and New Versions of the Cisco 4000 Series Chassis Shell

Preparing the Chassis for Rack-Mounting or Wall-Mounting

To rack-mount or wall-mount the chassis, you must first remove the front panel and component tray from the chassis shell.

Some Cisco 4000 series routers have a safety latch tab on the chassis that affects removing the component tray. (See Figure 2 and Figure 3.)

If you have a chassis with a safety latch tab, follow the procedure in the following section, "Removing the Component Tray from a Chassis with a Safety Latch."

If you have a chassis without a safety latch tab, follow the procedure in the section "Removing the Component Tray from a Chassis without a Safety Latch," later in this document.

Removing the Component Tray from a Chassis with a Safety Latch

Warning Hazardous voltages may exist in or near the power supply, so use extreme caution when working near the power supply. Before starting any of these procedures, turn OFF power to the system, unplug the power cord, disconnect any cables at the ports, and attach your ESDpreventive wrist strap.

Take the following steps to remove the component tray from a chassis with a safety latch:

Step 1 Turn OFF the system power.

Step 2 Attach your ESD-preventive wrist strap.

Step 3 Remove all network and power cables.

Step 4 Loosen the nonremovable screw in the back of the router chassis. The screw is labeled "Chassis release screw" in Figure 2.

Figure 2 : Component Tray Removal for Chassis With a Safety Latch

Warning Before releasing the safety latch, support the component tray from underneath either on your work surface or with your hands to prevent it from falling (see Figure 2).

Step 5 Slide the component tray out of the chassis shell while facing the rear panel of the chassis, pulling the handle on the right side of the chassis until the safety latch catches. (See Figure 2.)

Step 6 Supporting the component tray with one hand, push down on the safety latch tab while you pull out on the component tray.

Step 7 Set the component tray on your work surface.

Step 8 Remove the plastic front panel from the front of the chassis shell by pulling it straight out using both hands.

Removing the Component Tray from a Chassis without a Safety Latch

Warning Hazardous voltages may exist in or near the power supply, so use extreme caution when working near the power supply. Before starting any of these procedures, turn OFF power to the system, unplug the power cord, disconnect any cables at the ports, and attach your ESDpreventive wrist strap.

Take the following steps to remove the component tray from a chassis without a safety latch:

Step 1 Turn OFF the system power.

Step 2 Attach your ESD-preventive wrist strap.

Step 3 Remove all network and power cables.

Step 4 Loosen the nonremovable screw in the back of the router chassis. The screw is labeled "Chassis release screw" in Figure 3.

Warning Support the component tray from underneath, either on your work surface or with your hands, to prevent it from falling.

Figure 3 : Component Tray Removal for Chassis Without a Safety Latch

Step 5 While facing the rear panel of the chassis, pull the handle on the right side of the router while you support the component tray with one hand. Slide the component tray out of the chassis shell.

Step 6 Set the component tray on your work surface.

Mounting the Chassis in a Standard Rack

After removing the chassis shell and front panel, you can install the standard rack-mount brackets into the chassis shell. The standard 19-inch rack-mount kit (see Figure 4) consists of two sets of one bracket, one short extender (approximately five inches) (see Figure 5), and one long extender (approximately ten inches) (see Figure 6).

If you have an older version of the chassis, use the first of the following procedures to install the standard rack-mount brackets. If you have a new version of the chassis, use the second procedure to install the standard rack-mount brackets. After installing the brackets, use the third procedure to install the chassis shell into a standard 19-inch rack.