3Com CS/2500 manual Pull taut to expose screw

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Upgrades 5-9

bDisconnect the cable attached to the rear of the daughtercard. Pull it toward you to expose the mounting screw that fastens the diskette drive bracket to the bottom of the chassis (step 2 in Figure 5-6).

cRemove the mounting screw (step 3 in Figure 5-6).

dSlide the bracket toward the rear and lift it and the diskette drive out of the chassis (step 4 in Figure 5-6).

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

eDisconnect the power wiring harness from the connector on the rear of the diskette drive (step 5 in Figure 5-6).

Rear

	Power supply
	WARNING:
	Hazardous voltage.
	Do not open.	3	Remove
Motherboard	No user-serviceable	3	Remove
	parts inside.		screw.
		4	Pull out diskette
			drive.

5 Remove power wiring harness connector.

1 Disconnect these cables	2	Disconnect cable and
from the diskette drive.		pull taut to expose screw.
	Daughtercard

Front

Figure 5-6 Removing the Diskette Drive

4Remove the remaining ribbon cable from the connector on the rear of the diskette drive.

Be careful to note the orientation of the cable.

Image 73

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 interfacesCompatibility SoftwareSW/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 Back Panel Power supply module and three types of connectorsCS/2500 and CS/2600 back panel, shown in -5, contains Overview Back Panel Overview Optional Rack SpecificationsMount Kit VAC Do the following before beginning the installation InstallationPreparation Installation Install brackets To the Network Cabling the ServerTurning 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 Entering ConfigurationFirmware Monitor Configuration Changing ProcedureFollowing menu is displayed SLP Changing the Configuration Configuration Changing the Configuration Used with 3Com Network Control Servers NCSs Com no longer SLP, and Trivial File Transfer Protocol TftpNext section Tftp Type B Change IP/TFTP Parameters menu appearsConfiguration Bootp CS/2000 or CS/2100 Emulating aSoftware 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 waysContinuous Self-Test and Initial Boot Source parameters Set the Auto-reboot parameter to Boot monitorNonfunctional -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 For Repair Returning ProductsSender’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