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Cisco Systems Cisco 2800 Removing the Cover from Cisco 2821 and Cisco 2851 Routers

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Installing and Upgrading Internal Modules in Cisco 2800 Series Routers

OL-5792-04

Removing the Chassis Cover

Removing the Cover from Cisco 2821 and Cisco 2851 Routers

Follow these steps to remove the chassis cover. A number 2 Phillips screwdriver is required.

Rack-mounted routers must be removed from the rack and positioned on a flat surface before you start

removing the cover.

The following warning applies only if the router is provided with a DC-power input:

Warning

Before performing any of the following procedures, ensure that power is removed from the DCcircuit.

Statement 1003

Step1 Make sure that the router is turned off and disconnected from its power source.

Warning

Before opening the unit, disconnect the telephone-network cables to avoid contact with

telephone-network voltages.

Statement 1041

Step2 Disconnect all network interface cables from the rear panel of the router.

Step3 Place the router on a flat surface. Use a Phillips screwdriver to remove the three screws at the rear of the

top cover. Set the screws aside in a safe place.

Step4 Lift the cover up to a 45-degree angle. (See Figure7.)

Step5 Slide the cover to the side (toward the side with the fans) until the tabs are free from the slots. (See

Figure 7.)

Contents

Main Cisco 2800 Series Hardware Documents: Introduction and Warnings Objectives Audience Topics Covered by Hardware Documents Conventions Safety Warnings Warning Definition Page Page Page Page Related Documentation Cisco 90-Day Limited Hardware Warranty Terms Obtaining Documentation Cisco.com Ordering Documentation Documentation Feedback Obtaining Technical Assistance Cisco Technical Support Website Submitting a Service Request Definitions of Service Request Severity Obtaining Additional Publications and Information Page Page Overview of Cisco 2800 Series Routers Hardware Features Product Serial Number Location Hardware Features Figure4 Serial Number Location on the Cisco 2801 Router SN: AAANNNNXXXX 103962 781-00287-01 SN: AAANNNNXXXX 117342 781-00286-01 Built-in Interfaces Removable and Interchangeable Modules Memory Power LED Indicators Page Page Chassis Ventilation Real-Time Clock Chassis Views Cisco 2801 Chassis Page Cisco 2811 Chassis 13 Chassis Views 45 23 24-60 V 8A Cisco 2821 and Cisco 2851 Chassis 15 Chassis Views 8 9 24-60V 12A Interface Numbering Page Specifications Page Page Page Page Page Page Regulatory Compliance Page Preinstallation Requirements and Planning for Cisco 2800 Series Routers Safety Recommendations Safety with Electricity Preventing Electrostatic Discharge Damage General Site Requirements Power Supply Considerations Site Environment Site Configuration Equipment Racks Installation Checklist Creating a Site Log Inspecting the Router Required Tools and Equipment for Installation and Maintenance Page Page Port and Cable Information for Cisco 2800 Series Console and Auxiliary Port Considerations Console Port Connections Auxiliary Port Connections Preparing to Connect to a Network Ethernet Connections Serial Connections Configuring Serial Connections Serial DTE or DCE Devices Signaling Standards Supported Distance Limitations Asynchronous/Synchronous Serial Module Baud Rates ISDN BRI Connections CSU/DSU Connections Chassis Installation Procedures for Cisco 2800 Series Routers Installing Modules and Interface Cards Page Installing Modules and Interface Cards Figure2 Chassis Slot Locations in Cisco 2811 Routers Figure3 Chassis Slot Locations in Cisco 2821 Routers 45 8 9 Installing Internal Field-Replaceable Units (FRUs) Setting Up the Chassis Rack-Mounting the Chassis Page Attaching Rack-Mount Brackets to Cisco 2801 Routers Attaching Rack-Mount Brackets to Cisco 2811, Cisco 2821, and Cisco 2851 Routers Figure10 Bracket Installation for Rear Mounting Figure11 Bracket Installation for Center Mounting with Front Panel Forward Installing the Router in a Rack Use four screws on each side. pair of screws. 9 Setting Up the Chassis Attaching Optional Cable Management Bracket Statement 1006 Setting Up the Chassis Figure13 Attaching the Optional Cable Management Bracket to the Cisco 2801 Router Figure14 Attaching the Optional Cable Management Bracket to a Cisco 2811, 2821, or 2851 Router Setting the Chassis on a Desktop Cable management screw Cable management bracket. Either edge may go up. Attach to either side of the chassis. Mounting a Cisco 2811 Router on a Wall Attaching Brackets to the Router for Wall Mounting Attaching the Router to a Wall Installing the Chassis Ground Connection 14 Installing the Chassis Ground Connection Ground lug Figure19 Chassis Ground Connection Using Ring Terminal on Cisco 2811 Chassis To install the ground connection for a Cisco 2800 series router, perform the following steps: 15 Installing the Chassis Ground Connection Ground lug Figure20 NEBS-Compliant Chassis Ground Connection on Cisco 2821 or Cisco 2851 Chassis Figure21 Chassis Ground Connection Using Ring Terminal on Cisco 2821 or Cisco 2851 Chassis Page Cable Connection Procedures for Cisco 2800 Series Routers Power Connections Connecting Routers to AC Power Connecting Routers to DC Power DC Wiring Requirements Wiring Procedure for DC Input 5 Statement 117 do not project above or below the front panel of the router. OFF position. + Page Page Page Connecting Routers to Backup Power Connecting WAN, LAN, and Voice Cables Ports and Cabling Page Connection Procedures and Precautions Connecting to a Console Terminal or Modem Connecting to the Console Port Connecting to the Auxiliary Port Page Power Up and Initial Configuration Procedures for Cisco 2800 Series Routers Powering Up Cisco 2800 Series Routers Checklist for Power Up Power Up Procedure Verifying the Front Panel LED Indications Verifying the Hardware Configuration Configuring the Router Initial Configuration Using Cisco Router and Security Device Manager Initial Configuration Using the Setup Command Facility Page 7 Step8 Select one of the available interfaces for connecting the router to the management network: verification procedures. Step9 Respond to the following prompts as appropriate for your network: The configuration is displayed: Initial Configuration Using the Cisco CLIManual Configuration Verifying the Initial Configuration Completing the Configuration Page Troubleshooting Cisco 2800 Series Routers Solving Problems Troubleshooting the Power and Cooling Systems Normal Indications Fault Indications Environmental Reporting Features Troubleshooting Modules, Cables, and Connections Reading System LEDs Page Reading Port and Module LEDs System Messages Page Page Page Recovering a Lost Password More Troubleshooting HelpCisco Technical Assistance Center Page Page Page Installing Network Modules in Cisco 2800 Series Viewing the Cisco Network Module Installation Guide Installing Slot Dividers in Network Module Slots Installing Network Modules in Cisco2800 Series Routers OL-5790-01 Installing Slot Dividers in Network Module Slots Figure3 Tightening the Slot Divider in a Network Module Slot Figure4 Slot Divider Installed in a Network Module Slot Removing Slot Dividers from Network Module Slots divider. Remove slot dividers from network module slots as follows: Installing and Removing Filler Panels in Network Module Slots 5 Installing Network Modules in Cisco2800 Series Routers OL-5790-01 Installing and Removing Filler Panels in Network Module Slots 1Filler panel Figure7 Filler Panels for NME-X Installing Filler Panels in Network Module Slots Removing Filler Panels from Network Module Slots Installing Blank Panels over Empty Chassis Slots Blank Panels for Network Module Slots Related Product Documentation Page Installing Interface Cards in Cisco 2800 Series Viewing the Cisco Interface Card Installation Guide Installing and Removing Slot Dividers Installing Slot Dividers in HWIC Slots on Cisco 2801 Routers Installing Slot Dividers in HWIC Slots on Cisco 2811, Cisco 2821, and Cisco 2851 Routers Page Removing Slot Dividers from HWIC Slots on Cisco 2801 Routers Removing Slot Dividers from HWIC Slots on Cisco 2811, Cisco 2821, and Cisco 2851 Routers Installing Blank Panels over Empty Chassis Slots Blank Panels for HWIC Slots Related Product Documentation Page Installing and Upgrading Internal Modules in Cisco 2800 Series Routers Safety Warnings Removing the Chassis Cover Removing the Cover from Cisco 2801 Routers Page Removing the Cover from Cisco 2811 Routers Page Page Removing the Cover from Cisco 2821 and Cisco 2851 Routers Installing and Upgrading Internal Modules in Cisco 2800 Series Routers OL-5792-04 Removing the Chassis Cover 1Lift cover 2Slide cover to free the tabs Figure7 Cisco 2821 or Cisco 2851 RouterRemoving the Top Cover of the Router Locating Modules Page Page Installing and Removing DRAM DIMMs DRAM DIMM Location and Orientation Removing a DRAM DIMM Installing a DRAM DIMM in a Cisco 2801 Router Installing a DRAM DIMM in a Cisco 2811, Cisco 2821, or Cisco 2851 Router Installing and Removing AIMs Software Requirement for AIMs AIM Location Removing an AIM Installing an AIM Installing an AIM in a Cisco 2801 Router Accessory Kit to Use Installation Procedure Page Page Installing an AIM in a Cisco 2811, Cisco 2821, or Cisco 2851 Router Accessory Kit to Use Installation Procedure Page Page Page Installing a CompactFlash Memory Card on the AIM Applying the AIM Label 27 Figure27 Example of an AIM Label Location on a Chassis Verifying AIM Installation AIM-VPN/EP II AIM label Rear of chassis Installing and Removing PVDMs PVDM Location and Orientation Removing a PVDM Installing a PVDM Replacing the Power Supply Installing an Inline Power Supply in a Cisco 2801 Router Page Installing a Power Supply in a Cisco 2811 Router Removing the Existing Power Supply Page Installing an AC-Input Power Supply Page Installing a DC-Input Power Supply Page Installing an ILP Supply Installing a Power Supply in a Cisco 2821 or Cisco 2851 Router Removing the Existing Power Supply Page Page Installing an AC-Input Power Supply Page Installing a DC-Input Power Supply Page Installing an ILP Supply Page Installing the Chassis Cover Installing the Cover on Cisco 2801 Routers Installing the Cover on Cisco 2811 Routers Installing the Cover on Cisco 2821 and Cisco 2851 Routers Page Removing and Installing CompactFlash Memory Cards in Cisco 2800 Series Routers Preventing Electrostatic Discharge Damage Removing a CompactFlash Memory Card Installing a CompactFlash Memory Card