3Com 3C13840 manual Troubleshooting the Power System, Troubleshooting the Configuration System

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3Com Router 6000 Family

Chapter 7

Installation Manual

Troubleshooting

Chapter 7 Troubleshooting

7.1 Troubleshooting the Power System

Symptom:

The RUN LED on the PSU is OFF or blinking.

Solution:

Check that:

zThe power switch on the router is turned on.

zThe switch of the power source is turned on.

zThe power cord is correctly connected.

zThe power source meets the requirement of the router. If the PSU is DC-input, check the AC/DC OK LED: solid ON means the input voltage is normal (85 to 264 V), off means the input voltage is abnormal.

7.2Troubleshooting the Configuration System

If the router passes POST after powered up, the console screen displays the startup banner; if faults occur to the configuration system, the console screen displays nothing or only illegible characters.

Symptom 1:

After the router is powered on, the console screen displays nothing.

Solution:

Step 1: Check that:

z

z

The power system is normal.

The console cable is correctly connected.

Step 2: Check the console cable and the terminal (HyperTerminal for example) settings.

Symptom 2:

After the router is powered on, the console screen displays illegible characters.

Solution:

Verify that the terminal settings are as follows:

Baud: 9600

3Com Corporation

7-1

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Contents 3C13840 3C13880 3Com Router 6000 Family Installation Guide3Com Corporation Campus Drive Marlborough, MA 01752-3064 Table of Contents Starting and Configuring the Router Components of Integrated Anchor Strips Router Overview II. Ethernet accessIntroduction Abundant FIC optionsVII. Abundant fault isolation methods Data security and reliabilityVI. Online software upgrading Router Model and Structure 1 3Com RouterVIII. Regulatory compliance Front panel of the 3Com Router 2 3Com Router6040 6080 System DescriptionSpecifications SpecificationsGeneric Modules 1 RPU2II. LED and button III. InterfaceLED and button Description IV. Encryption daughter card 2 PSUFunctions II. AppearanceIII. LED FAN module11FAN module the 3Com Router FICsTemperature and Humidity Preparing for InstallationCleanness General Site RequirementsESD Prevention Electromagnetic CompatibilityGas Max. mg/m Safety Precautions Lightning ProtectionChecking the Rack Name Quantity Description Unpacking CheckInstallation Tools and Meters and Equipment Installation Flow Installing The RouterModel Dimensions Installing the Cabinet/RackMounting the Router Rack-Mounting the RouterInstalling the Generic Modules Connecting the PgndMounting the Router on a Tabletop Connecting the Power Cord Connecting the AC-Input Power CordAC-input power supply II. AC power socket recommended Connecting the DC-Input Power CordIII. Connecting the AC-input Power Cord DC-input power supplyII. Connecting the DC-input power cord Connecting the Console TerminalPower source Router side Console portIII. Connecting the console cable Connecting the Router to a LANEthernet interface II. Ethernet cableIII. Connecting the Ethernet cable Connecting the Router to a WAN III. Connecting the AUX cable Verifying InstallationAUX port II. AUX cableSetting up a Configuration Environment Starting and Configuring the RouterConnecting the router to a console terminal II. Setting terminal parameters3Com Router 6000 Family Chapter Installation Manual 3Com Router 6000 Family Chapter Installation Manual 5Set the terminal type Boot Process of the RPU2 Powering on the RouterChecking before power-on II. Powering on the routerPress Enter. The console screen displays Basic Configuration Procedures Router Configuration BasicsCommand Line Interface Characteristics of the command line interfaceArranging Slots and Numbering Interfaces II. Command line interface3Com Router 6000 Family Chapter Installation Manual Maintaining Software Boot MenuOverview Maintaining Software of the RPU2=BACKUP =SECURE Set this file as Main Backup Exit Enter your choice1-3 Upgrading Software Using Xmodem 1Set Send File parameters Upgrading the application imageThen, the system asks you to select a file type III. Upgrading the extended segment of the Boot ROM image II. Upgrading the entire Boot ROM programEnter Y. The system displays Parameter Description Upgrading the Application Image Using TftpDealing with a Router Password Loss Maintaining Hardware Removing/Installing PSUsPreparing Tools Removing a PSURemoving/Installing the Fan Module Installing a PSURemoving the Fan Module Removing/Installing the Main Control Board Installing the Fan ModuleRemoving the RPU2 Replacing the Sdram Installing the RPU2II. Removing the Sdram Removing the RPUIII. Installing an Sdram Removing/Installing the Encryption Daughter CardIV. Installing the RPU Removing the Encryption Daughter Card8Install the encryption daughter card Installing the Encryption Daughter CardTroubleshooting Troubleshooting the Power SystemTroubleshooting the Configuration System Troubleshooting Application Image Upgrade DownLoad Program To Flash Through Net Port Boot Device 3Com Corporation Installing B68 Cabinets Installation Requirements and ProceduresPlanning the Site 2Footprint of the combined cabinets General Installation ProceduresComponents of Integrated Anchor Strips Mounting Cabinets on the Concrete Floor5Installing the mounting fixtures onto the anchor strip Installation FlowMarking Positioning Cabinets8Layout of the mounting holes and cabinet feet two cabinets II. Drilling holes III. Installing expansion boltsAdjusting Cabinet Feet 10Lock cabinet feet Combining Cabinets11Remove/install the cover Fixing Cabinets Installing anchor stripsIII. Fixing the retaining nuts of the anchor strips Testing Insulation15Install a single cabinet on the concrete floor Introduction to Racks Mounting Cabinets on the Antistatic FloorII. Shape of racks Number of racks in useComponent Height of antistatic floor mm III. Installing rack componentsIntroduction to Slide Rails 19Dimensions of slide rail segmentsDetermining where to install the cabinet Positioning RacksII. Marking 21Layout of the installation holes on the H800 series racks 23Layout of the mounting holes and cabinet feet two cabinets III. Drilling holes Installing Racks Installing expansion tubes and nutsII. Adjusting rack height Installing Slide Rails III. Installing and fixing racksInstalling T-shape nuts 27 T-shape nut II. Leveling and fixing rails28Fix and level slide rails and racks Installing Antistatic Floor SupportsII. Installing the supports for the antistatic floor Leveling Cabinets Moving the cabinets to the positionII. Leveling the cabinets 32Level cabinets III. Locking cabinet feet33Fasten cabinet feet 34Remove/install the cover Installing the T-shape nuts II. Installing anchor stripsIII. Installing insulating parts and fixing anchor strips 37Fix anchor strips IV. Fixing the retaining nuts of the anchor stripsRestoring the Floor 17illustrates how to install cabinets on the concrete floor39B68 cabinets installed on the antistatic floor
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3C13840, 3C13880 specifications

The 3Com 3C13880 and 3C13840 are notable components within the realm of networking technology, primarily designed for enterprise-grade solutions. These devices belong to the 3Com family, which has long been recognized for its commitment to developing robust networking products tailored to facilitate efficient data transfers and improve connectivity across various platforms.

One of the standout features of the 3C13880 is its high-performance capabilities. This model supports advanced functions such as load balancing and fault tolerance, critical for maintaining optimum network performance in high-demand environments. Additionally, it supports various protocols, including Ethernet and Token Ring, making it versatile and adaptable to existing infrastructure. The device accommodates a wide range of network transmissions, ensuring seamless integration and operation within diverse network ecosystems.

In terms of connectivity, the 3C13880 is equipped with multiple ports, allowing for extensive device interconnectivity. This feature is particularly beneficial in large organization settings, where multiple devices, such as servers and workstations, need to communicate effectively. Coupled with high-speed data transmission rates, this model ensures minimal latency, enhancing overall network efficiency.

On the other hand, the 3C13840 is designed with a focus on cost-efficiency without sacrificing performance. This model provides essential networking features suitable for smaller business environments or those seeking budget-friendly options. It delivers reliable throughput and the ability to support a moderate number of users, making it ideal for small to mid-sized offices.

Both the 3C13880 and 3C13840 incorporate technologies that prioritize security and reliability. Features such as VLAN support and QoS settings help optimize network performance while ensuring the security and integrity of data are maintained. The devices also support management tools that allow administrators to monitor network performance in real time, facilitating quick troubleshooting and enhancing overall network management.

In summary, both the 3Com 3C13880 and 3C13840 devices stand out in networking technology by offering unique features tailored to different organizational needs. While the 3C13880 appeals to enterprises needing high performance and robust capabilities, the 3C13840 provides an accessible option for those requiring effective and budget-conscious networking solutions. The legacy of 3Com continues to be evident in these products, reflecting their innovative approach to addressing the dynamic demands of modern networking.