Cabletron Systems STHI Computing Hardware, Environmental Requirements, Physical Specifications

Page 25

 

Operating Specifications

2.2.7 Computing Hardware

 

Operating System Memory:

2.0 MB

Internal Processor:

Intel i960 operating at 16 MHz

Non-Volatile RAM:

128 KB with battery back-up

EPROM:

128 KB

FLASH MEMORY:

1 MB

2.2.8Environmental Requirements

Operating Temperature:

+5° to +50° C

 

fluctuation ≤ 10° per hour

Non-operating Temperature:

-30° to +90° C

Operating Humidity:

5 to 95% (non-condensing)

2.2.9 Physical Specifications

 

Dimensions:

2.8 H x 17.0 W x 8.0 D inches

 

(7.2 x 43.6 x 20.5 cm)

Predicted MTBF:

STHI-22/42: 523,989 hours

(mean time between failure)

STHI-24/44: 505,811 hours

Page 2-7

Page 24 Page 26
Image 25
Page 24 Page 26
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 Local Management TroubleshootingAppendix a Tpim Specifications Appendix B Media Specifications Sthi Overview Contents of This ManualLanview LEDs Sthi OverviewRing Speed Fault Protection Lobe Port and Multiple Ring Out Port ConfigurationsTCU Ports Media Type Connector Daughter Board Upgrade KitActive 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 Getting Help Related ManualsRelated Manuals Local ManagementGetting Help Maximum Number of Stations on a Ring General Networking ConsiderationsInstallation Recommendations TemperatureGeneral Networking Considerations CrosstalkOperating Specifications Operating SpecificationsHubstack Interconnect Cables TCU and COM PortsRJ45 to DB25 Connector Pinout Standard MIBs Supported MIB GroupsCabletron Enterprise MIBs Ring SpeedRing Sequence SafetyComputing Hardware Physical SpecificationsEnvironmental Requirements Unpacking the Sthi Installing the SthiStacking the Sthi Installing the SthiAttaching the Strain Relief Bracket Rack-Mounting the SthiRack Mounting Brackets Wall-Mounting the SthiInstalling the Sthi Wall-mounting the Sthi Free-Standing InstallationsFinishing the Installation Tpim InstallationTpim Installation Connecting the Sthi to the Power SourceColor Condition Lanview LED SignalsTrouble Resolution Trouble ResolutionLoss Of Power Failure to Link on Enabled PortReset Button Reset ButtonReset Button Management FailureNvram Reset Switch Nvram Reset SwitchLocal Management Accessing LMDumb Terminal Configuration Accessing LMMenu Parameter Setting Entering LM Console Cable ConfigurationUsing LM Screens Using LM ScreensInvoking Menu Options or Screen Commands Working with LM ScreensExiting the Local Management Interface Session Setting or Modifying FieldsScreen Hierarchy Password Screen Main Menu Device Setup StatusScreen Introductions System LevelChassis Status View Snmp TrapsComponent Status Device StatisticsSystem Level Screen System Level ScreenSystem Date and System Time IP AddressSubnet Mask Enable IP Address DiscoveryRetry Interval Number of Retries Enable Beacon RecoverySnmp Community Names Screen Locally Administered AddressSnmp Community Names Screen MAC AddressCommunity Name Access PolicyRead-only Read-writeSnmp Traps Screen Enable TrapsSnmp Traps Screen Trap DestinationChassis Status View Screen Screen Mode Screen CommandChassis Status View Screen Functions of the Chassis Status View ScreenMultiplexer Configuration Fields Administrative Mode Port Configuration FieldsEach port field whether Tpim or TCU may be set as follows Ring OUT Enable Mode Each Ring port Tpim port or Ring Out TCU may be listed as Operational ModeComponent Status Screen Component Status ScreenNext and Previous Device Statistics Screen Device Statistics ScreenAccumulate Screen ModeFrames Received Errors ReceivedKBytes Received Beacon StatesRing Status Ports EnabledRing Number Stations on a RingLine Errors Isolating Errors Fields GroupBurst Errors AC ErrorsNon-Isolating Errors Group Internal ErrorsLost Frame Errors Frame Copied ErrorsFrequency Errors Token ErrorsSnmp Tool Screen Snmp Tool Screen3 GET OID PrependStep GetnextCycles Walk9 SET Firmware Image Downloads RepeatCtDLCommitRAMtoFlash Twisted Pair Tpim Pinouts OverviewFiber Optic Tpim Specifications Fiber Optic Tpim SpecificationsParameter Typical Worst Case TPIM-F2 for Multimode FiberBudget Parameter Typical Minimum Maximum TPIM-F3 for Single Mode FiberA-5 UTP Cable Categories Unshielded Twisted Pair UTPUnshielded Twisted Pair UTP Operating Electrical SignalAttenuation Loss Cat Frequency Per 100m @ ≥100mShielded Twisted Pair STP Shielded Twisted Pair STP@ 4 Mbps @ 16 Mbps CategoryType Frequency 1000 m 1000 ft Operational Attenuation perSTP 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
Top Page Image Contents