Cabletron Systems 42T, MICROMMAC Wall-Mounting the MicroMMAC-T, Installing of Rack-Mount Brackets

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INSTALLATION

2.Using the four cover screws removed in step 1, attach the rack-mounting brackets to each end of the MicroMMAC-T.

Wall/Rack Mounting

Brackets (2)

MicroMMAC-24TTOKEN RING HUB WITH LANVIEW®

SUPPORTING 100 OHM STP CABLE

Screws (4)

Figure 3-2. Installing of Rack-Mount Brackets

3.With the mounting brackets installed, position the MicroMMAC-T between the vertical frame members of the 19-inch rack and fasten it securely with the mounting screws (see Figure 3-3).

19-Inch Rack

MicroMMAC-24TTOKEN RING HUB WITH LANVIEW®

SUPPORTING 100 OHM STP CABLE

Screws (4)

Figure 3-3. Installing the MicroMMAC-T in a 19-inch Rack

3.3.2 Wall-Mounting the MicroMMAC-T

When wall-mounting the MicroMMAC-T, the TCU ports must face downward. Perform the following steps to wall-mount the MicroMMAC-T:

NOTE: 1/4-inch Molly screw anchors for wall-mounting are not included with the MicroMMAC-T.

1.Use the supplied screws to attach the wall-mounting brackets to the bottom of the MicroMMAC-T as shown in Figure 3-4. There are two brackets, one for each side.

3-3

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Contents Page Iii FCC Notice Cabletron SYSTEMS, INC. Program License Agreement United States Government Restricted Rights Contents Troubleshooting Local ManagementSaved System Messages Viewing Power UP Diagnostic Tests Contents Overview Chapter IntroductionMicroMMAC-T Overview MicroMMAC-T Features TelnetActive TCU Ports Cable Signal PolaritySpeed Fault Protection Local ManagementFlash Eeprom Ring Speed SwitchCabletron’s Distributed LAN Monitor Mode Lanview LEDsLCD and LCD Display Button Reset ButtonCOM Port Applications MIB SupportGroup Subgroup Section Rmon MIB SupportRmon MIB RFC 1271/1513 Support Stackable Capabilities BRIDGING/ROUTING Capabilities Typical Stackable ConfigurationTelnet Capabilities 1 SNA/WAN IntegrationRemote Management Capabilities BRIMsRecommended Reading Getting HelpCable Specifications MicroMMAC-T Ports/CablesUTP Voice Grade and Category 3 Specifications UTP Cable SpecificationsAttenuation and Impedance Frequency Impedance AttenuationMaximum Number of Stations Maximum Lobe LengthsType 3 Media Filters UTP Maximum Lobe LengthsTypes Frequency Impedance Attenuation STP Cable SpecificationsSTP Cable Specifications STP Cable Type Ring Speed Mbps Maximum Trunk LengthsSTP Maximum Lobe Lengths STP Maximum Drive DistanceMultimode Fiber Optic Cable Specifications Mixed Cable TypesAttenuation Cable Type Attenuation Maximum Drive DistanceFiber Optic Budget Single Mode Fiber Optic Cable SpecificationsSingle Mode Fiber Optic Cable Specifications Crosstalk Cable RECOMMENDATIONS/TROUBLESHOOTINGTemperature NoiseCOM Port Specifications COM 1/COM 2 PortsSlip Tpim SpecificationsUPS TPIM-T1TPIM-T2 TPIM-T1 PinoutsTPIM-F2 TPIM-T4 PinoutsParameter Typical Worst Case Value Budget TPIM-F3TPIM-F2 Specifications Parameter Typical Minimum MaximumREQUIREMENTS/SPECIFICATIONS Output Min. Load Max. Load Max Power General SpecificationsPower Supply Requirements Environmental RequirementsPhysical SafetyService Unpacking the MicroMMAC-T Attaching the Strain Relief BracketInstalling the MicroMMAC-T Rack-Mounting the MicroMMAC-TInstalling of Rack-Mount Brackets Wall-Mounting the MicroMMAC-TWall-Mounting the MicroMMAC-T Resetting the MICROMMAC-T Free-Standing InstallationConnecting to a Power Source To change the ring speed Setting the Ring SpeedTo reset the MicroMMAC-T Setting the Nvram Switch To restore MicroMMAC-T parameters to the factory defaultsConnecting Lobe Port Cabling RJ45 Plug MIC ConnectorRJ45 Plug At TCU At device port10. UTP Configuration Example To attach a lobe segment to a MicroMMAC-T network port 11. STP Configuration ExamplePinout Cross-Reference for TPIMs Installing Tpim ModulesSignal RJ45 DB9 Ring-In Ring-Out Setting Phantom and RI/RO Switches Tpim Installation To install a TPIM, perform the following stepsConnecting STP Segments To connect a TPIM-T1 to a Twisted Pair SegmentConnecting Twisted Pair Segments To connect a segment to a TPIM-T2/-T4Connecting Fiber Optic Link Segments 16. The TPIM-T2/-T4To connect a fiber optic link segment to the TPIM-F2 /-F3 17. The TPIM-F2/-F3Checking the Installation To check MicroMMAC-T installationManagement Terminal Requirements Use Local Management to Do the FollowingTo attach a management terminal to the MicroMMAC-T Management Terminal Setup ParametersAttaching the Management Terminal Menu Function Selection Modem Cable Configuration and SetupTerminal Settings for LM Terminal Accessing Local Management To access Local ManagementAccessing Local Management via Telnet MicroMMAC-TLocal Management ScreenSetup Menu Screen Accessing Local Management from a ModemUsing Local Management Main Menu ScreenSelecting a Menu Screen Option Setting or Modifying Local Management Screen FieldsWorking with Local Management Screens Exiting a Local Management Screen Exiting Your Local Management SessionSetting the System Date System Level ScreenSetting the System Time Setting the Host IP AddressModifying the Subnet Mask To modify the Subnet MaskSetting Automatic Beacon Recovery Process Abrp Fields Setting the Default GatewayTo set the Default Gateway To set the Beacon Recovery field To set the Number of Retries field Setting COM 1 and COM 2 ApplicationsSnmp Community Names Screen To set the Retry Interval fieldSnmp Community Names Screen Community Name Access PolicySnmp Traps Screen Editing the Community Name fieldTrap Destination Enable TrapsSetting Snmp Traps Trap Community NameRing Security Screen Ring Security Screen Stn Edit Security ModeStation Address Previousscreen SAVE/EXECUTENextscreen ReturnDeleting Stations from the Station Address Allowed List Viewing the Revised Allowed ListAdding Stations to the Station Address Allowed List Device Statistics Screen Device StatisticsSetting the Refresh Field Selecting the Device Statistics Counter ModeUsing the Accumulative Counter Mode Errors Received Isolating ErrorsAC Errors Ring InformationNON-ISOLATING Errors Lost Frame ErrorsFrame Copied Errors Chassis Status View ScreenMode Next Using the Operational Mode Screen 10. Chassis Status View Operational ScreenTo display the status of ports Using the Administrative Mode Screen To enable and disable select portsTo bypass all ports on a module To enable all ports for all modulesUsing the Ring OUT Enable Mode Screen To reconnect a module to the token ringTo switch to and from STN and RO Component Status ScreenMIB Navigator Screen 13. Component Status View ScreenTo escape from the MIB Navigator screen To access a list of MIB commandsTo get help on specific commands Navigation Built-In Special Navigational commandsMIB Commands Built-In commands SetFlash Download Screen To download a Flash imageDownload Method field To chose the Runtime methodTo choose the Bootprom method Toggle from Runtime to Bootprom using the spacebarUsing Lanview LEDs Lanview LedsUsing the LCD Display LCD DisplayDisplayed Message Significance Static System MessagesStatic System Messages Displayed Significance Messages Alarm MessagesAlarm Messages Unsaved Failure or Error Messages Unsaved Initialization MessagesSaved System Messages Saved System MessagesNormal Unsaved Initialization Messages Displayed MessageViewing Power UP Diagnostic Tests Responding to Error MessagesTo execute a response option To return to Local ManagementPower Supply Cord
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