3Com 5017C-LS, 5017C with load sharing Attaching the Rack Mount Flanges

Page 42

Caution: You must use the supplied 8-32 x 1/4" screws to attach the rack mount flanges. A longer screw may extend too far into the ONline chassis and disrupt the installation of modules.

Figure 2-4. Attaching the Rack Mount Flanges

2.Install the provided clip nuts onto the front of the rack where you want to attach the unit. See Figure 2-3 for proper orientation.

3.Slide the unit in the rack above the installed cable tray until the rack mount flanges seat flush to the front of the rack.

Caution: While mounting the concentrator, do not leave the unit resting on the mounted cable tray since the cable tray rack mounts may not support a fully-loaded concentrator.

4.Secure the unit to the rack with the four (4) 10-32 x 5/8" truss-head screws as shown in Figure 2-5.

2 - 12 ONline 17-Slot System Concentrator Installation and Operation Guide

Image 42
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 How to Use This Guide AudienceStructure of This Guide This guide contains the following chaptersDocument Conventions Convention Indicates ExampleRelated Documents 3Com Documents Reference DocumentsPage Introduction Introducing the ONline System ConcentratorMultiple 17-Slot Concentrator Environment Back Panel Front PanelONline System Concentrator Features ONline System Concentrator Front ViewModular ONline Configuration Modular DesignPort-Switching Technology TriChannel ArchitectureONline System Concentrator Using Multiple Networks Fault-Tolerance Capabilities Backup Power SupplyLoad Sharing Backup Controller Module Redundant Cable LinksBackup Concentrator Redundant Cable Link ConfigurationBackup Concentrator Configuration Hot Swapping of Media ModulesSynchronous Backplane Installation and Troubleshooting Contents of the Shipping BoxONline System Concentrator Shipping Box Contents FCC Regulations Site Selection Considerations Location RequirementsVentilation Power Requirements Rack Mount Installation RequirementsInstallation Table Top Installation RequirementsInstalling the Cable Tray Rack Mount Settings Cable Tray Rack MountingRack Mount Positions Cable Tray Installation in Rack Cable Tray Table MountingInstalling the ONline System Concentrator Rack Mounting the ONline System ConcentratorAttaching the Rack Mount Flanges Table Top Mounting the ONline Concentrator Chassis Mounted in RackInstalling the Backup Power Supply Optional Removing Fan UnitUnplugging the Fan Unit Power Supply Connectors Selecting the Power Supply Voltage 10. Installed Backup Power Supply11. Setting the Voltage Selector Switch Installing ONline Modules Connecting Network CablesPower Up and Verification 12. Network Cable ConnectionsPower Supply Operation Verification Fan Operation VerificationTroubleshooting with Controller Module LEDs Command. If this fails to See Primary Power LED Technical Assistance Where To Go From Here Configuration of your concentratorMaintenance Routine Maintenance Replacing the Power SupplyRemoving the Power Supply Unplugging the Power Supply Power Supply Plugs in ONline System Concentrator Backup Power Supply Installed Replacing the Fan Unit Removing the Fan UnitUnplugging the Fan Unit ONline Module Maintenance Other System ComponentsPage General EnvironmentalPower Source MechanicalRegulatory Compliance Accessories Page Slot Usage Chart Table B-1. Concentrator Slot Usage Chart Table B-1. Concentrator Slot Usage Chart Page Technical Support On-line Technical SupportSupport from Your Network Supplier Email Technical SupportWorld Wide Web Site Support from 3Com Accessing the 3Com MIB Returning Products for Repair3Com Technical Publications Page Index Index