3Com 5017C with load sharing, 5017C-LS Installing the ONline System Concentrator

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Installing the ONline System Concentrator

The ONline System Concentrator can be placed on top of a table or a shelf, or mounted in a rack. Make sure the cable tray has been installed first on the table or in the rack (or that 1 3/4" (4.5 cm) of vertical space has been provided below the unit for air flow) and that the location meets all the environmental considerations specified earlier in this chapter.

Caution: 3Com recommends that two people install the unit since it weighs 38 lbs (17 kg) with one power supply and 46 lbs (24 kg) with the backup power supply installed.

3Com also recommends installing the backup power supply prior to rack mounting the unit (see the section titled Installing the Backup Power Supply later in this chapter). In some rack cabinets, the rear of the cabinet may interfere with installation or removal of the power supply and fan.

Rack Mounting the ONline System Concentrator

The ONline System Concentrator can be mounted in four different configurations in the rack. Use the same rack settings for both the cable tray and the concentrator. If you are not installing the cable tray in the rack, you should select the concentrator mount setting at this time. Refer to Table 2-2 and Figure 2-2 in the “Cable Tray Rack Mounting” section for specifics about the four mounting settings.

Follow the steps below to mount the concentrator in your rack:

1.Attach the two rack mount flanges to the ONline concentrator unit in the position you want as shown in Figure 2-4 using the eight (8) provided 8-32 x 1/4" flathead screws - four per side.

Installation and Troubleshooting 2 - 11

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Contents Document Number Printed March VDE Class B Compliance Restricted Rights Page Contents Maintenance Appendix B Slot Usage Chart Appendix C Technical Support Page Figures Page Tables Page Audience How to Use This GuideThis guide contains the following chapters Structure of This GuideConvention Indicates Example Document ConventionsRelated Documents Reference Documents 3Com DocumentsPage Introducing the ONline System Concentrator IntroductionMultiple 17-Slot Concentrator Environment Front Panel Back PanelONline System Concentrator Front View ONline System Concentrator FeaturesModular Design Modular ONline ConfigurationTriChannel Architecture Port-Switching TechnologyONline System Concentrator Using Multiple Networks Load Sharing Fault-Tolerance CapabilitiesBackup Power Supply Redundant Cable Links Backup Controller ModuleRedundant Cable Link Configuration Backup ConcentratorHot Swapping of Media Modules Backup Concentrator ConfigurationSynchronous Backplane Contents of the Shipping Box Installation and TroubleshootingONline System Concentrator Shipping Box Contents FCC Regulations Ventilation Site Selection ConsiderationsLocation Requirements Rack Mount Installation Requirements Power RequirementsTable Top Installation Requirements InstallationInstalling the Cable Tray Cable Tray Rack Mounting Rack Mount SettingsRack Mount Positions Cable Tray Table Mounting Cable Tray Installation in RackRack Mounting the ONline System Concentrator Installing the ONline System ConcentratorAttaching the Rack Mount Flanges Chassis Mounted in Rack Table Top Mounting the ONline ConcentratorRemoving Fan Unit Installing the Backup Power Supply OptionalUnplugging the Fan Unit Power Supply Connectors 10. Installed Backup Power Supply Selecting the Power Supply Voltage11. Setting the Voltage Selector Switch Connecting Network Cables Installing ONline Modules12. Network Cable Connections Power Up and VerificationFan Operation Verification Power Supply Operation VerificationTroubleshooting with Controller Module LEDs Command. If this fails to See Primary Power LED Technical Assistance Configuration of your concentrator Where To Go From HereMaintenance Replacing the Power Supply Routine MaintenanceRemoving the Power Supply Unplugging the Power Supply Power Supply Plugs in ONline System Concentrator Backup Power Supply Installed Removing the Fan Unit Replacing the Fan UnitUnplugging the Fan Unit Other System Components ONline Module MaintenancePage Environmental GeneralRegulatory Compliance Power SourceMechanical Accessories Page Slot Usage Chart Table B-1. Concentrator Slot Usage Chart Table B-1. Concentrator Slot Usage Chart Page On-line Technical Support Technical SupportWorld Wide Web Site Support from Your Network SupplierEmail Technical Support Support from 3Com Returning Products for Repair Accessing the 3Com MIB3Com Technical Publications Page Index Index