Cabletron Systems TRXI-22, TRXI-42, TRXI-24 STP Cable Type Ring Speed Mbps, Maximum Trunk Lengths

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REQUIREMENTS/SPECIFICATIONS

Maximum Lobe Lengths

The lobe length is the physical length of the cable connecting a station to its TCU port at the TRXI. Table 2-4 shows the maximum lobe length, according to ring speed. The cable lengths listed in Table 2-4 are total lengths made up of STP cable only.

Table 2-4. STP Maximum Lobe Lengths

STP Cable Type

Ring Speed

 

 

4 Mbps

16 Mbps

 

 

 

 

 

 

 

 

IBM Types 1

& 2

200 meters

100 meters

 

 

(660 feet)

(330 feet)

 

 

 

 

IBM Types 6

& 9 (only

30 meters

30 meters

for station to wall jack

(99 feet)

(99 feet)

and patch panels)

 

 

 

 

 

 

Maximum Trunk Lengths

The maximum trunk cable length between the TRXI and another active device is equal to the maximum drive distance as shown in Table 2-5. When the neighboring token ring device is a passive device, the combined length of twice the longest trunk cable plus the longest lobe cable attached to the passive ring segment cannot exceed the Maximum Drive Distance.

Table 2-5. STP Maximum Drive Distance

STP Cable Type

Ring Speed

 

4 Mbps

16 Mbps

 

 

 

 

 

 

IBM Types 1 & 2

770 meters

346 meters

 

(2525 feet)

(1138 feet)

 

 

 

IBM Types 6 & 9

513 meters

230 meters

 

(1683 feet)

(755 feet)

 

 

 

Maximum Number of Stations

When you use STP lobe cabling everywhere on the ring, the TRXI can support up to 250 stations at ring speeds of either 4 or 16 Mbps.

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Contents Token Ring Intelligent HUB USER’S Guide Printed On Recycled Paper FCC Notice Exclusion of Warranty and Disclaimer of Liability REQUIREMENTS/SPECIFICATIONS Contents Table of Contents IntroductionInstallation Testing and Troubleshooting ContentsLocal Management Using this Manual Chapter IntroductionIntroduction Getting Help Trxi OverviewTrxi Features Media Type Connector Rmon MIB SupportGroup Subgroup Section Token Ring Port Interface Modules TPIMsFlash EEPROMs Cabletron’s Distributed LAN MonitorRemote Network Management Capabilities Recommended ReadingChapter REQUIREMENTS/SPECIFICATIONS Cable SpecificationsAttenuation and Impedance Frequency Impedance AttenuationMaximum Lobe Lengths UTP Cable Type Maximum Lobe Length MbpsType 3 Media Filters Maximum Number of StationsREQUIREMENTS/SPECIFICATIONS STP Cable Type Ring Speed Mbps Maximum Trunk LengthsMixed Cable Types Cable Type Attenuation Maximum Drive Distance Multimode Fiber Optic Cable Specifications for the TPIM-F2Fiber Optic Budget Single Mode Fiber Optic Cable Specifications for the TPIM-F3 Crosstalk TemperatureNoise REQUIREMENTS/SPECIFICATIONS REQUIREMENTS/SPECIFICATIONS COM 1/COM 2 Port Specifications ConsoleModem UPSREQUIREMENTS/SPECIFICATIONS Tpim Specifications TPIM-T1REQUIREMENTS/SPECIFICATIONS TPIM-T2 TPIM-T4Parameter Typical Worst Worst Case Typical REQUIREMENTS/SPECIFICATIONS TPIM-F2Value Case Budget REQUIREMENTS/SPECIFICATIONS TPIM-F3 TPIM-F3Parameter Typical Minimum Maximum REQUIREMENTS/SPECIFICATIONS General Specifications Power Supply RequirementsOutput Min. Load Max. Load Max Power Environmental RequirementsService REQUIREMENTS/SPECIFICATIONS SafetyPhysical Unpacking the Trxi Attaching the Strain Relief BracketInstalling the Trxi Attaching the Strain ReliefInstalling the Trxi in the Rack Rack Mounting the TrxiWall Mounting the Trxi Free-Standing Installation Installation Setting the Ring Speed Switch Ring Speed Switch SettingsInstallation Setting the Nvram Switch Installation Connecting the Trxi to the Power Source Connecting the Network Lobe Port CablingConfiguration Examples for TRXI-24 and TRXI-44 LNK TPIM-T4 Installation Installing the Tpim RI/RO Modules Setting the TPIM’s Phantom Switch and RI/RO Switch Top ViewInstalling a Tpim to the Trxi 12. Installing a TpimConnecting a Twisted Pair Segment to the TPIM-T1 Connecting a Twisted Pair Segment to the TPIM-T2 or TPIM-T4 Installation LNK Finishing the Installation Chapter Testing and Troubleshooting Checking the InstallationTesting and Troubleshooting Using Lanview TRXI-24TOKEN Ring HUB with LanviewTesting and Troubleshooting LCD Display LCDStatic System Messages Displayed Message CommentsAlarm Messages Displayed Messages CommentsUnsaved Initialization Messages Failure or Error MessagesNormal Unsaved Initialization Messages Saved System Messages Displayed MessageChapter Local Management Local Management Management Terminal Requirements Attaching the Management TerminalSetting the Management Terminal Setup Parameters Display SetupGeneral Setup SetupModem Cable Configuration and Setup RJ45 COM 2 PortLocal Management Accessing Local Management Trxi Local ManagementLocal Management Using Local Management Main MenuExiting a Local Management Screen Selecting a Menu OptionExiting Your Local Management Session System Level Screen System DateSystem Time IP AddressSetting the System Date COM 1 ApplicationCOM 2 Application Clear All NvramSetting the System Time Setting the IP AddressSetting the Subnet Mask Setting the Clear All Nvram Field Setting the Enable Beacon Recovery FieldSnmp Community Names Screen Access Component NameCommunity Name Editing the Community Name FieldEnable Traps Snmp Traps ScreenTrap Destination Trap Community NameSetting Snmp Traps Ring Security Screen Station Address Security ModeStn Edit SAVE/EXECUTE NextscreenPreviousscreen ReturnBuilding the Allowed List Adding Stations to the Station Address Allowed ListChanging the Ring Security Mode Deleting Stations from the Station Address Allowed ListDevice Statistics Device Statistics ScreenInterface Isolating Errors Ring Information Ports Enabled NON-ISOLATING ErrorsLost Frame Errors Ring NumberFrame Copied Errors Rcvr Congestion ErrorsToken Errors Frequency ErrorsSelecting the Device Statistics Counter Mode Setting the Refresh FieldEnable All Ports Chassis Status View ScreenPort Status TempSetting the Enable All Ports Option Setting the Operational/Administrative Mode OptionOperational ReturnComponent Status View Screen 11. Component Status View ScreenSnmp Tools Screen GET SETGetnext WalkGetting and Setting OIDs Security Access LevelCommunity Name Local Management Scrolling Through MIB OIDs Local Management Local Management Power Supply Cord GermanSpanish French