Cabletron Systems STHI manual Wall-Mounting the Sthi, Rack Mounting Brackets

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Installing the STHI

Rack Mounting Brackets (2)

HubSTACK TOKEN RING HUB WITH LANVIEW®

SUPPORTING 100 OHM UTP CABLE

STHI-24

CPU	ACT
16 Mb/s	MGMT
COM	RO

24X 23X 22X 21X 20X 19X 18X 17X 16X 15X 14X 13X

RI

12X

11X

10X

9X

8X

7X

6X

5X

4X

3X

2X

1X

Screws (4)

Figure 3-2. Installing the Rack-Mount Brackets

3.With the mounting brackets installed, position the STHI between the vertical frame members of the 19-inch rack and fasten it securely with the mounting screws as shown in Figure 3-3.

19-Inch Rack

HubSTACK TOKEN RING HUB WITH LANVIEW®

SUPPORTING 100 OHM UTP CABLE

STHI-24

CPU	ACT
16 Mb/s	MGMT
COM	RO

24X 23X 22X 21X 20X 19X 18X 17X 16X 15X 14X 13X

RI

12X

11X

10X

9X

8X

7X

6X

5X

4X

3X

2X

1X

Screws (4)

Figure 3-3. Installing the STHI in a Rack

3.1.5Wall-Mounting the STHI

When an STHI is installed on a wall, it must face downward so that all attached cables will hang straight out from the TCUs, rather than prying at angles to the ports.

1.Use the provided 3/8” screws to attach the wall-mounting brackets to the bottom of the STHI as shown in Figure 3-4. There are two brackets, one for each side.

Page 3-3

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Contents Sthi Intelligent Token Ring Stackable HUB USER’S Guide Page FCC Notice Cabletron Software Program License United States Government Restricted Rights Installation Requirements & SpecificationsIntroduction Troubleshooting Local ManagementAppendix a Tpim Specifications Appendix B Media Specifications Contents of This Manual Sthi OverviewSthi Overview Lanview LEDsRing Speed Fault Protection Lobe Port and Multiple Ring Out Port ConfigurationsTCU Ports Daughter Board Upgrade Kit Media Type ConnectorActive Circuitry 3 RI & RO PortsHub-By-Hub Bypass Control Automatic Beacon Recovery ProcessSupport for Passive MAU Workgroups Flash Downloads Improved Protection from BeaconingIP Address Discovery DAISY-CHAIN MAU Configuration Related Manuals Getting HelpRelated Manuals Local ManagementGetting Help General Networking Considerations Maximum Number of Stations on a RingTemperature Installation RecommendationsGeneral Networking Considerations CrosstalkOperating Specifications Operating SpecificationsHubstack Interconnect Cables TCU and COM PortsRJ45 to DB25 Connector Pinout Supported MIB Groups Standard MIBsCabletron Enterprise MIBs Ring SpeedSafety Ring SequenceComputing Hardware Physical SpecificationsEnvironmental Requirements Installing the Sthi Unpacking the SthiInstalling the Sthi Stacking the SthiAttaching the Strain Relief Bracket Rack-Mounting the SthiWall-Mounting the Sthi Rack Mounting BracketsInstalling the Sthi Free-Standing Installations Wall-mounting the SthiTpim Installation Finishing the InstallationTpim Installation Connecting the Sthi to the Power SourceLanview LED Signals Color ConditionTrouble Resolution Trouble ResolutionLoss Of Power Failure to Link on Enabled PortReset Button Reset ButtonReset Button Management FailureNvram Reset Switch Nvram Reset SwitchAccessing LM Local ManagementDumb Terminal Configuration Accessing LMMenu Parameter Setting Console Cable Configuration Entering LMUsing LM Screens Using LM ScreensInvoking Menu Options or Screen Commands Working with LM ScreensSetting or Modifying Fields Exiting the Local Management Interface SessionPassword Screen Main Menu Device Setup Status Screen HierarchyScreen Introductions System LevelSnmp Traps Chassis Status ViewComponent Status Device StatisticsSystem Level Screen System Level ScreenSystem Date and System Time IP AddressSubnet Mask Enable IP Address DiscoveryRetry Interval Enable Beacon Recovery Number of RetriesLocally Administered Address Snmp Community Names ScreenSnmp Community Names Screen MAC AddressAccess Policy Community NameRead-only Read-writeEnable Traps Snmp Traps ScreenSnmp Traps Screen Trap DestinationScreen Mode Screen Command Chassis Status View ScreenChassis Status View Screen Functions of the Chassis Status View ScreenMultiplexer Configuration Fields Port Configuration Fields Administrative ModeEach port field whether Tpim or TCU may be set as follows Ring OUT Enable Mode Operational Mode Each Ring port Tpim port or Ring Out TCU may be listed asComponent Status Screen Component Status ScreenNext and Previous Device Statistics Screen Device Statistics ScreenScreen Mode AccumulateErrors Received Frames ReceivedKBytes Received Beacon StatesPorts Enabled Ring StatusRing Number Stations on a RingIsolating Errors Fields Group Line ErrorsBurst Errors AC ErrorsInternal Errors Non-Isolating Errors GroupLost Frame Errors Frame Copied ErrorsToken Errors Frequency ErrorsSnmp Tool Screen Snmp Tool ScreenOID Prepend 3 GETGetnext StepCycles Walk9 SET Repeat Firmware Image DownloadsCtDLCommitRAMtoFlash Overview Twisted Pair Tpim PinoutsFiber Optic Tpim Specifications Fiber Optic Tpim SpecificationsParameter Typical Worst Case TPIM-F2 for Multimode FiberBudget TPIM-F3 for Single Mode Fiber Parameter Typical Minimum MaximumA-5 Unshielded Twisted Pair UTP UTP Cable CategoriesOperating Electrical Signal Unshielded Twisted Pair UTPAttenuation Loss Cat Frequency Per 100m @ ≥100mShielded Twisted Pair STP Shielded Twisted Pair STP@ 4 Mbps @ 16 Mbps CategoryOperational Attenuation per Type Frequency 1000 m 1000 ftSTP Lobe Lengths Mixed STP Cable TypesSingle Mode and Multimode Fiber Optic Cabling Single Mode and Multimode Fiber Optic CablingMax. Lobe Length Max. Drive Distance Type Mbps Total Maximum