3Com CS/2500 manual Upgrades

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Upgrades 5-11

WARNING: To avoid possible electrical shock, the server’s power cord must be disconnected from the power source before accessing its internal components.

You need a #1 and a #2 Phillips screwdriver. A pair of needlenose pliers is also helpful for removing and replacing screws. Follow this procedure:

1Make sure server power is off and the power cord is unplugged.

2Remove the cover, as described in “Removing the Cover” on page 5-6.

3Perform the steps illustrated in Figure 5-7.

a Disconnect the cable bundle that connects the power supply to the motherboard (step 1 in Figure 5-7).

b For Model CS/2600 only, disconnect the cable attached to the rear of the daughtercard mounted on top of the disk drive bracket. Pull it toward you to expose the mounting screw that fastens the power supply module to the bottom of the chassis (step 2 in Figure 5-7).

c Remove the mounting screw (step 3 in Figure 5-7).

dSlide the power supply module toward the front of the server and lift it out (step 4 in Figure 5-7).

The bottom of the power supply has two keyhole slots that fit over standoffs located on the bottom of the chassis. You must slide the power supply far enough forward to lift it off the standoffs.

eFor Model CS/2600 only, remove the power wiring harness from the connector on the rear of the diskette drive (step 5 in Figure 5-7).

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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 Conventions About this GuideIntroduction AudienceThis Typeface Italics Italics are used to denote new terms or emphasis About this Guide Ten standard RS-232-D electrical interfaces FeaturesFeatures OverviewSoftware 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 Modifying ConfigurationAC power source must meet the requirements outlined Configuration, and Appendix C, Monitor UtilityInstallation Startup Guide or software release notes Diskette Booting fromDiskette Rbcs filesStartup 3Com Corporation CS/2000 Series Monitor Reading...OK Insert copy and hit return to continue Parameter changes Shutting Down Boot ProblemsNormal Startup MessagesShutting 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 UpgradesMaintenance 3Com recommends the following procedures for preventiveMaintenance 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 Dump Procedures on Memory dumps, refer to Memory Dump Procedures on-2 on page 1-4. The switch is recessed into a round hole to Become nonfunctional, enter the following commandSyntax BT From memory location Procedures onUsing this menu, refer to , Configuration Filename and address parameters specify the nameDescription Repeats the previous command On-line Technical Services3Com Bulletin Board Service 3ComBBS Technical SupportPress 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