Enterasys Networks 2H252-25R manual Screws Chassis Cover Front Panel

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Removing the Chassis Cover

3.Use a Phillips screwdriver to remove the four screws attaching the cover to the chassis. (See Figure B-1.)

Figure B-1 Removing the Chassis Cover

Screws (4)

Chassis Cover

Front Panel

Chassis

Note: If the device was rack mounted, the four screws fastening the cover to the front panel are removed and installed along with the rackmount brackets.

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4.Remove the cover by sliding it back until it clears the front of the chassis and then lifting it straight up and off the chassis.

To reinstall the chassis cover, perform the removal procedures in reverse.

B-4Optional Installations and Mode Switch Bank Settings

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Contents 2H252-25R SmartSwitch Installation User’s Guide Page Page FCC Notice Industry Canada NoticeVcci Notice Class a ITE NoticeEnterasys NETWORKS, INC Program License Agreement Page Declaration of Conformity Page Contents Troubleshooting Figures Tables Structure of this Guide Using this GuideAbout This Guide Related Documents Document Conventions Guide uses the following conventionsPage Introduction OverviewConnectivity Runtime IP Address DiscoveryFull Duplex Switched Ethernet SmartTrunkRemote Monitoring Rmon Broadcast SuppressionPort/VLAN Redirect Functions Rate LimitingGarp Switch Operation Flow ControlSwitching Options 11 802.1 Port PriorityManagement Optional HSIMs and VHSIMsYear 2000 Compliant Lanview Diagnostic LEDsStandards Compatibility Getting Help Your email addressNetwork Requirements 10BASE-T Network100BASE-TX Network Installation Unpacking the DeviceInstalling Options Installing the Device Tabletop or Shelf InstallationGuidelines for Tabletop and Shelf Installations InstallationRackmount Installation Guidelines for the Rackmount InstallationAttaching the Strain-Relief Bracket Rack Mounting the 2H252-25R Strain-Relief Bracket ScrewsRackmount Bracket Screws Connecting Power Redundant Primary AC outlets are On separate circuitsConnecting to the Network Connecting Twisted Pair Cables to Fixed PortsConnecting the Twisted Pair Segment Straight-Through Cable Completing the Installation Troubleshooting Using LanviewLanview LEDs PWR CPU FDX Troubleshooting Checklist Local Management User’s Guide2E253, 2H252, 2H253 SmartSwitch Series 2E253 Using the Reset Button Reset ButtonPage Physical Properties SpecificationsDevice Specifications INPUT/OUTPUT Ports Electrical SpecificationsEnvironmental Requirements COM Port Pinout Assignments Regulatory CompliancePage Optional Installations Mode Switch Bank Settings Required ToolsRemoving the Chassis Cover Optional Installations and Mode Switch Bank Settings B-3 Screws Chassis Cover Front Panel Setting the Mode Switches Figure B-2 Mode Switch Location6Optional Installations and Mode Switch Bank Settings Simm Upgrade Locating SIMMsInstalling the Dram Simm Installing Optional Hsim or Vhsim Interface Modules Figure B-5 Hsim and Vhsim Connector LocationsPage Index NumericsIndex-2