3Com DSA-3CV1001-02 service manual Fatal Error Messages, Error message Significance User Action

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Using a PC Terminal Emulator to Solve Problems

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The only error message of this type is Wrong entry! It appears when the user enters the wrong response to a menu. The user solves the problem by re-entering his response.

When a user disconnects the management terminal from the LMI port and later reconnects, the LMI menu system stays in the same state and expects the same user input after reconnect. During reconnect the user may press the wrong sequence of keys and cause Wrong entry! to be displayed on the screen. Type 0 and press <Enter> a few times until the desired menu appears.

■Fatal

Almost all error messages that do appear are fatal. Contact Technical Support when an error message, except for Wrong entry!, appears. The most common fatal error messages are listed in Table 14.

Table 14 Fatal Error Messages

Error message	Significance	User Action

FATAL ERROR: SDRAM test	Hardware error during	Contact Technical Support.
failed!	boot-up

FATAL ERROR: failed FLASH	Hardware error during	Contact Technical Support.
access!	boot-up

Ethernet selftest failed!	Hardware error during	Contact Technical Support.
	initialization

HDLC selftest failed!	Hardware error during	Contact Technical Support.
	initialization

I2C selftest failed!	Hardware error during	Contact Technical Support.
	initialization

DRAM data bus test fail!	Hardware error	Contact Technical Support.

DRAM address bus test fail!	Hardware error	Contact Technical Support.

Boot-up and initialization are processes that occur when the VCN AP is reset. Reset occurs when the user selects Reset board from the menu system.

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Contents Visitor and Community Network Access Point 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Conventions About this GuideList conventions that are used throughout this guide Icon DescriptionDocumentation RelatedYear ComplianceContents Summary and Structure of the Menus Login Using the Local Management Access3Com FTP Site Online Technical Services World Wide Web SitePage Overview Features BenefitsVisitor CommunityOverview Shows a typical MTU/MDU application Visitor Community Network ApplicationsFeatures PBX VCN AP Software Download Network Configuration Type State Used to Describes the LEDs and connectors on the front panelVCN Access Point LEDs and Connectors Front View VCN AP Unit LEDs and Connectors Back Panel Describes the connectors on the back panelTo reduce the risk of electrocution and fire Safety InformationSicherheitsvorkeh- rungen für den VCN Access Point Précautions de sécurité concernant le VCN Access PointSicherheitsvorkehrungen für den VCN Access Point Safety Information Unpacking List Installing and Operating VCN Access PointQuantity Supplied by 3ComAccess Point Installing the VCNWall, see Under a table, seeApply the paper template to the wall as shown in Figure Access Point on a WallDrill Holes for Anchors Insert the three anchors. See FigureInserting Anchors Screw Holes in the Top of the VCN AP Drive the last screw into the wall anchor to the full depthVCN AP without Curved Cover Table the lower surface of a table, as in FigureAp er tem pla te Lin e W e r Driving Two Screws into the Table Is aligned with the VCN APs small screw hole. See FigureInserting the VCN AP under the Table Completion of Mounting the VCN AP Under the Table Preparing VCN AP for Table Top Use Troubleshooting, section Power-on Self Test Post VCN AP may be used for the following Operating the VCNMaking a Voice Call Any front panel connectionReceiving Faxes Receiving Data TrafficUsing Using the Local Management AccessManagement TerminalMenus use the management system efficiently MenusTerminal Emulator Menu Hierarchy Number Sequence Corresponding to Submenus Type your Login ID and press EnterType your password and press Enter VCN AP Main Menu Return to Previous Menu OptionVCN AP Management Menu Version ScreenEthernet Traffic Counters Ethernet Traffic Count Screen Ethernet StatusChange Ethernet Work Mode Menu Reset CountersLearning Table If a PC is not connected, the message in appearsSetting Internal Loopback Mode Setting External Loopback Mode When you discard the operation, the message appearsHdlc Traffic Counters Hdlc Menu To view the Hdlc MenuHdlc Status Type y and press Enter to perform the resetHdlc Status Screen Change Hdlc Work ModeNormal mode is lack of loopbacks Operation Mode Selector Menu appears Enter F Reset messagesVdsl QAM Channel Status Report To set the Vlan ID perform the following steps Set Vlan ID for ManagementEnter the desired mode a confirmation message appears Set Ethernet Half/Full Duplex ModeChange Password To change the password, do as followsInterface from the Local Management port Set to Factory DefaultsDownload Access in this manualProcedure Downloading Software to the LCs in the VCN AC VCN Service Switch 10 Front PaneSoftware Download Network Configuration Enter the AC Vlan ID and press Enter. The message appears Software Download MenuLC Downloading State Table LC Downloading Results Enter the AP Vlan ID and press Enter. The message appears Downloading Software to VCN APsAP Downloading State Table Check Software Download for the LC Cards Download Failed for One or More Line Cards but not All Download Failed for all LCs and all VCN APsDownload Failed for One or More VCN APs but not All State Ethernet Line Power TroubleshootingUse the front panel LEDs to determine each port’s status Determining VCN AP Status During PostDescribes the LEDs ProblemsVCN AP LEDs State IndicatesVCN AP is not VCN AP VCN AC Summary of VCN AP LED Indications after Post Problem SolutionNIC Summary of Problems Indicated by Counts of Errored Frames Hdlc Traffic Count IndicatorsSummary Abnormal Indications From Traffic Counts Counter Counts the Frames Normal Count IndicatesError message Significance User Action Fatal Error MessagesAppendix a Troubleshooting EMC Product SpecificationAppendix B Product Specification Local Access Management Menu appears Confirm Reset BoardType S the downloading message appears Figure Type Y to reset. The screen in appearsProcomm Plus Terminal Screen Procomm window , select Data Send File FigureSelect the correct file and click Open Screen in appearsSend File Status Window While the file is downloading, the status window in appearsFlash VCN AP Pin No. Assignment LM Terminal Connector Pin AssignmentPIN Assignments for LMA D Cable VCN AP describes the pin assignments MiniDIN DB-9 Pin No Pin No. Assignment LM Cable Wiring LM Cable ConnectionsAppendix D PIN Assignments for LMA Cable Terminal Emulation Settings Terminal Emulation SettingsTo define the terminal emulation settings DefiningConfiguration Bar Terminal SettingsTerminal settings can be established in one of two ways Procomm Plus SettingsNo From Left Function Settings Procomm Setup WindowConnection Properties Window Flow controlServices ServicesTechnical Support Online TechnicalUsername anonymous Access by Analog ModemHours a day, 7 days a week Country Data Rate Telephone Number408 727 Access by Digital Modem847 262 Country Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle EastCountry Telephone Number Fax Number Page Numbers IndexRemote software download Requirements 3Com Corporation Limited Warranty Obtaining Warranty Service Governing LAW Ninety 90 daysEMC Statements