3Com 9400 manual Removing and Replacing the Power Supplies

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44APPENDIX B: FIELD-REPLACEABLE UNITS

4Grasp the handle of the new power supply and gently slide it into the chassis.

5To seat the power supply, ensure that all connectors are aligned. Then push the power supply inward until the connectors engage and latch. The latch should slide up. You feel a slight resistance as the connectors engage.

CAUTION: If the resistance is too great, the connectors may not be aligned. Forcing the power supply inward could damage the connectors. If necessary, remove and reinsert the power supply, ensuring that the connectors are properly aligned.

6Tighten the captive screws that secure the power supply to the chassis.

7Plug the power cord into the system.

8Plug the other end of the power cord into the building’s power outlet.

If your system has two power supplies, be sure to plug in the second power supply. Leaving the second power supply unplugged causes the system diagnostics to generate a power supply error.

Figure 13 Removing and Replacing the Power Supplies

Power supply

Power supply latch

DC OK

!

Power receptacle

Image 44

Contents CoreBuilder United States Government Legends Japan Vcci Class a ComplianceAustralian EMC Frameworks Compliance Page Contents System Specifications For information on IntroductionFinding Specific Information in This Guide Conventions For information on Turn toIcon Type Description Convention DescriptionCoreBuilder 9400 Documentation Paper DocumentsSoftware and Documents on CD-ROM Documentation CommentsYear 2000 Compliance CoreBuilder 9400 Intelligent Switch System Features and BenefitsSystem Management Network Configuration ExampleSpeeding Up Server Access System Overview Front Panel 10BASE-TXSystem Overview Back Panel Back Panel of the CoreBuilder 9400 SystemSuperStackII Switch System Overview Sample ApplicationSystem and Setup Overview Qty To use Installing the System on a Table TopBefore You Begin Installing the System in a Distribution Rack Installing System Mounting BracketsFiber Safety Precautions Overview of CablingCabling Gigabit Ethernet Ports Guidelines for Gigabit Ethernet CablingCabling 1000BASE-SX Ports Cabling Gigabit Ethernet PortsSystem is powered on and running Cabling 1000BASE Gbic PortsSC connector cover Connecting the LX Transceiver to MMF When you cable Gbic transceivers, note that the SC Cabling the Console Port Console Port Pin Assignments Pin No Signal DescriptionCabling the Out-of-Band Management Port Male RJ-45 connector 10BASE-T cable System Power UP Power UpGigabit Ethernet Port Diagnostics Power-up DiagnosticsSystem Diagnostics Next Step Software Configuration System ChecksCheck Description SystemSystem Power UP Access Allows you to Using Mechanism About CoreBuilder 9400 System ManagementIP Management Interface Terminal ConnectionModem Connection Initial Management Access Changing the Console Port Baud SettingOut-of-band Management Configuring the IP InterfaceIn-band Management Diagnosing Problems Power FailuresGetting Additional Help Abnormal LED ActivitySymptom Possible Sources of the Problem Steps to Take Diagnosing Problems LED Status Possible Sources of the Problem Steps to TakeCleaning Dirty Fiber Optic Ports and Connectors Specifications Physical Dimensions Safety Agency CertificationsPower Supply Environmental RequirementsSoftware Tftp RFC Installation Standard Type RFC/IEEE SupportedSnmp protocol RFC MIB II RFCSafety Precautions Power Supply Assembly Removal and ReplacementRemoving and Replacing the Power Supply AudienceRemoving and Replacing the Power Supplies Fan Tray Assembly Removal and Replacement Fan Tray Assembly Removal and ReplacementAppendix B FIELD-REPLACEABLE Units General Safety Requirements Wiring Closet RecommendationsSpace Requirements for the Rack Distribution Rack RequirementsProtective Grounding for the Rack Recommended Service Access Mechanical Requirements for the RackBuilding and Electrical Codes Building CodesNfpa Electrical CodesAppendix C Site Requirements and Safety Codes World Wide Web Site Online Technical Services3Com Knowledgebase Web Services 3Com Bulletin Board Service 3Com Facts Automated Fax Service3Com FTP Site Country Data Rate Telephone NumberSupport from Your Network Supplier Support from 3ComCountry Telephone Number Asia Pacific Rim CountryEurope Latin AmericaReturning Products for Repair Country Telephone Number Fax NumberAppendix D Technical Support Index NumbersIndex Recommendations World Wide Web WWW 50, 51 Index 3Com Corporation Limited Warranty CoreBuilder 9400 High-Availability SwitchWarranties Exclusive