3Com CS/2500 manual Troubleshooting

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6 TROUBLESHOOTING

If your communications server does not start up as described in Chapter 3, “Startup,” or fails during operation, review the following troubleshooting hints. If you cannot solve the problem, contact 3Com or your network supplier. Refer to Appendix D, “Technical Support,” for technical support information.

Startup Problems This section lists problems the CS/2500 series server can experience during its startup sequence (self-test and boot processes). These problems are indicated by abnormal behavior of front-panel LEDs or by error messages on the console.

To enable error reporting on the monitor port, do the following:

1Enter monitor mode, as explained in “Entering the Monitor” on page C-1.

2At the monitor prompt (>), enter fc to start the Firmware Configuration Utility.

3Type C to change parameters. Set the Monitor parameter to “Enabled” and the Initial Boot Source parameter to “Monitor.”

For more information on the Firmware Configuration Utility, refer to Chapter 4, “Configuration.”

4Press the reset switch to reboot the server in monitor mode.

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Contents CS/2500 Series 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Iii Page Contents Installation Maintenance and Upgrades PIN Assignments Technical Support Page Figures Tables Introduction About this GuideAudience ConventionsThis Typeface Italics Italics are used to denote new terms or emphasis About this Guide Features FeaturesOverview Ten standard RS-232-D electrical interfacesSoftware CompatibilitySW/2500, can be used only with the CS/2500 and CS/2600 Panel, see Back Panel on ChassisHardware Interrupt Front Panel Its +5 V DC output Power supply module and three types of connectors Back PanelCS/2500 and CS/2600 back panel, shown in -5, contains Overview Back Panel Overview Specifications Optional RackMount Kit VAC Installation Do the following before beginning the installationPreparation Installation Install brackets Cabling the Server To the NetworkTurning on the server All ports are set to terminal SETDefault -TERM DeVice = Installation End to the transceiver Slide-lock connection on the serverInstall brackets AC power source must meet the requirements outlined ConfigurationConfiguration, and Appendix C, Monitor Utility ModifyingInstallation Startup Guide or software release notes Diskette Booting fromRbcs files DisketteStartup 3Com Corporation CS/2000 Series Monitor Reading...OK Insert copy and hit return to continue Parameter changes Normal Startup Boot ProblemsMessages Shutting DownShutting Down Startup Configuration EnteringFirmware Monitor Configuration Procedure ChangingFollowing menu is displayed SLP Changing the Configuration Configuration Changing the Configuration SLP, and Trivial File Transfer Protocol Tftp Used with 3Com Network Control Servers NCSs Com no longerNext section Tftp Type B Change IP/TFTP Parameters menu appearsConfiguration Bootp Emulating a CS/2000 or CS/2100Software and to operate in mixed environments Changing Port Configuration Changing Port Configuration Configuration Maintenance Maintenance and Upgrades3Com recommends the following procedures for preventive MaintenanceMaintenance and Upgrades Maintenance Reinstall the fuseholder cartridge in the receptacle Upgrade procedures require you to remove the server cover UpgradesRemoving the Server Cover Rear Grasp both sides of the cover and carefully lift it off8-F Pull taut to expose screw Voltages. There are no user-serviceable parts inside Upgrades Remove Connector from Each pin must be inserted properly into its socket Replace the cover, as described in the next section EPROM. Each pin must be inserted properly into its socketUpgrades Maintenance and Upgrades Troubleshooting Troubleshooting Operating Problems Troubleshooting Memory Dump ProceduresEnter the density of the dump diskettes Return to use the default density 2mb Troubleshooting PIN Assignments Figure A-1 Serial Connector Pin NumberingTXD DTE Transceiver DO-S Slct Startup Messages Appendix B Startup Messages Monitor Utility You can access the monitor in either of the following waysSet the Auto-reboot parameter to Boot monitor Continuous Self-Test and Initial Boot Source parametersNonfunctional -2 on page 1-4. The switch is recessed into a round hole to Memory dumps, refer to Memory Dump Procedures onBecome nonfunctional, enter the following command Dump Procedures onSyntax BT Using this menu, refer to , Configuration Procedures onFilename and address parameters specify the name From memory locationDescription Repeats the previous command 3Com Bulletin Board Service 3ComBBS ServicesTechnical Support On-line TechnicalPress Return to see the ThreeComForum main menu Country Telephone Number Hong Kong 852 2537 44 1442 408 727 Appendix D Technical Support Returning Products For RepairSender’s expense To obtain an RMA number, call or fax 10/25/95 Numerics IndexCover Index Index Index Index Limited Warranty Bayfront Plaza Santa Clara, CA 408 764-5000 1/1/94