Document Outline

• Title Page
• Notice
• Contents
• Introduction
  • 1.1 Contents of This Manual
  • 1.2 STHI Overview
    • 1.2.1 LANVIEW LEDs
    • 1.2.2 TCU Ports
      • Lobe Port and Multiple Ring Out Port Configuration...
      • Ring Speed Fault Protection
      • Active Circuitry
      • Daughter Board Upgrade Kit
    • 1.2.3 RI & RO Ports
    • 1.2.4 Hub-By-Hub Bypass Control
    • 1.2.5 Automatic Beacon Recovery Process
    • 1.2.6 Support for Passive MAU Workgroups
      • Improved Protection from Beaconing
    • 1.2.7 Flash Downloads
    • 1.2.8 IP Address Discovery
    • 1.2.9 Local Management
    • 1.2.10 Remote Network Management Capabilities
  • 1.3 Related Manuals
  • 1.4 Getting Help
• Requirements & Specifications
  • 2.1 General Networking Considerations
    • Maximum Number of Stations on a Ring
    • Crosstalk
    • Noise
    • Temperature
    • Installation Recommendations
  • 2.2 Operating Specifications
    • 2.2.1 Hubstack Interconnect Cables
    • 2.2.2 TCU and COM Ports
    • 2.2.3 Supported MIB Groups
      • Standard MIBs
      • Cabletron Enterprise MIBs
    • 2.2.4 Ring Speed
    • 2.2.5 Ring Sequence
    • 2.2.6 Safety
    • 2.2.7 Computing Hardware
    • 2.2.8 Environmental Requirements
    • 2.2.9 Physical Specifications
• Installation
  • 3.1 Installing the STHI
    • 3.1.1 Unpacking the STHI
    • 3.1.2 Stacking the STHI
    • 3.1.3 Attaching the Strain Relief Bracket
    • 3.1.4 Rack-Mounting the STHI
    • 3.1.5 Wall-Mounting the STHI
    • 3.1.6 Free-Standing Installations
    • 3.1.7 Connecting the STHI to the Power Source
  • 3.2 TPIM Installation
  • 3.3 Finishing the Installation
• Troubleshooting
  • 4.1 LANVIEW LED Signals
  • 4.2 Trouble Resolution
    • Loss Of Power
    • Failure to Link on Enabled Port
    • Ring Speed Fault
    • Management Failure
  • 4.3 The Reset Button
  • 4.4 NVRAM Reset Switch
  • B.1 Unshielded Twisted Pair (UTP)
    • B.1.1 UTP Cable Categories
    • B.1.2 UTP Lobe Lengths
  • B.2 Shielded Twisted Pair (STP)
    • B.2.1 STP Cable Categories
    • B.2.2 STP Lobe Lengths
    • B.2.3 Mixed STP Cable Types
  • B.3 Single Mode and Multimode Fiber Optic Cabling
• Local Management
  • 5.1 Accessing LM
    • 5.1.1 Dumb Terminal Configuration
    • 5.1.2 Console Cable Configuration
    • 5.1.3 Entering LM
  • 5.2 Using LM Screens
    • 5.2.1 Working with LM Screens
      • Invoking Menu Options or Screen Commands
      • Setting or Modifying Fields
      • Exiting the Local Management Interface Session
    • 5.2.2 Screen Hierarchy
    • 5.2.3 Screen Introductions
      • System Level
      • SNMP Community Names
      • SNMP Traps
      • Chassis Status View
      • Component Status
      • Device Statistics
      • SNMP Tool
  • 5.3 The System Level Screen
    • 5.3.1 System Date and System Time
    • 5.3.2 IP Address
    • 5.3.3 Subnet Mask
    • 5.3.4 Enable IP Address Discovery
      • Retry Interval
    • 5.3.5 Enable Beacon Recovery
      • Number of Retries
      • Retry Interval
    • 5.3.6 MAC Address
    • 5.3.7 Locally Administered Address
  • 5.4 The SNMP Community Names Screen
    • 5.4.1 Community Name
    • 5.4.2 Access Policy
      • Read-only
      • Read-write
      • Super-user
  • 5.5 The SNMP Traps Screen
    • 5.5.1 Trap Destination
    • 5.5.2 Trap Community Name
    • 5.5.3 Enable Traps
  • 5.6 The Chassis Status View Screen
    • Functions of the Chassis Status View Screen
    • 5.6.1 The Screen Mode Screen Command
    • 5.6.2 Multiplexer Configuration Fields
    • 5.6.3 Port Configuration Fields
      • ADMINISTRATIVE Mode
      • RINGOUT ENABLE Mode
      • OPERATIONAL Mode
    • 5.6.4 NEXT and PREVIOUS
    • 5.6.5 ENABLE ALL PORTS
    • 5.6.6 REFRESH
  • 5.7 The Component Status Screen
  • 5.8 The Device Statistics Screen
    • 5.8.1 Screen Mode
      • TOTAL
      • DELTA
      • ACCUMULATE
    • 5.8.2 REFRESH 3SEC
    • 5.8.3 General Counter Fields (Group 1)
      • Frames Received
      • KBytes Received
      • Errors Received
      • Beacon States
      • Ring Purges
      • Active Monitor Changes
    • 5.8.4 Ring Information Fields (Group 2)
      • Active Monitor Addr
      • Ring Status
      • Ring Number
      • Stations on a Ring
      • Ports Enabled
      • Ring Speed
    • 5.8.5 Isolating Errors Fields (Group 3)
      • Line Errors
      • Burst Errors
      • AC Errors
      • Abort Transmit Errors
      • Internal Errors
    • 5.8.6 Non-Isolating Errors (Group 4)
      • Lost Frame Errors
      • Frame Copied Errors
      • Rcvr Congestion Errors
      • Token Errors
      • Frequency Errors
  • 5.9 The SNMP Tool Screen
    • 5.9.1 Community Name
    • 5.9.2 OID Prepend
    • 5.9.3 GET
    • 5.9.4 GETNEXT
    • 5.9.5 STEP
    • 5.9.6 WALK
    • 5.9.7 CYCLES
    • 5.9.8 RECALL-OID
    • 5.9.9 SET
    • 5.9.10 REPEAT
    • 5.9.11 Firmware Image Downloads
• TPIM Specifications
  • A.1 Overview
  • A.2 Twisted Pair TPIM Pinouts
  • A.3 Fiber Optic TPIM Specifications
    • A.3.1 TPIM-F2 for Multimode Fiber
    • A.3.2 TPIM-F3 for Single Mode Fiber
• Media Specifications