Cabletron Systems
MICROMMAC-22T, 42T
manual
Troubleshooting
Specs
Install
Error messages
Cable Signal Polarity
Setting the Default Gateway
Connecting to a Power Source
Reset Button
Accessing Local Management
Setup Menu Screen
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MICROMMAC-22T/24T/42T/44T
STACKABLE TOKEN RING
INTELLIGENT HUBS
USER’S GUIDE
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Contents
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FCC Notice
Cabletron SYSTEMS, INC. Program License Agreement
United States Government Restricted Rights
Contents
Local Management
Troubleshooting
Saved System Messages Viewing Power UP Diagnostic Tests
Chapter Introduction
Contents Overview
MicroMMAC-T Overview
Telnet
MicroMMAC-T Features
Speed Fault Protection
Cable Signal Polarity
Active TCU Ports
Local Management
Cabletron’s Distributed LAN Monitor Mode
Ring Speed Switch
Flash Eeprom
Lanview LEDs
COM Port Applications
Reset Button
LCD and LCD Display Button
MIB Support
Rmon MIB RFC 1271/1513 Support
Rmon MIB Support
Group Subgroup Section
Stackable Capabilities
Typical Stackable Configuration
BRIDGING/ROUTING Capabilities
Remote Management Capabilities
1 SNA/WAN Integration
Telnet Capabilities
BRIMs
Getting Help
Recommended Reading
MicroMMAC-T Ports/Cables
Cable Specifications
Attenuation and Impedance
UTP Cable Specifications
UTP Voice Grade and Category 3 Specifications
Frequency Impedance Attenuation
Type 3 Media Filters
Maximum Lobe Lengths
Maximum Number of Stations
UTP Maximum Lobe Lengths
STP Cable Specifications
STP Cable Specifications
Types Frequency Impedance Attenuation
STP Maximum Lobe Lengths
Maximum Trunk Lengths
STP Cable Type Ring Speed Mbps
STP Maximum Drive Distance
Attenuation
Mixed Cable Types
Multimode Fiber Optic Cable Specifications
Cable Type Attenuation Maximum Drive Distance
Single Mode Fiber Optic Cable Specifications
Single Mode Fiber Optic Cable Specifications
Fiber Optic Budget
Temperature
Cable RECOMMENDATIONS/TROUBLESHOOTING
Crosstalk
Noise
COM 1/COM 2 Ports
COM Port Specifications
UPS
Tpim Specifications
Slip
TPIM-T1
TPIM-T1 Pinouts
TPIM-T2
TPIM-T4 Pinouts
TPIM-F2
TPIM-F2 Specifications
TPIM-F3
Parameter Typical Worst Case Value Budget
Parameter Typical Minimum Maximum
REQUIREMENTS/SPECIFICATIONS
Power Supply Requirements
General Specifications
Output Min. Load Max. Load Max Power
Environmental Requirements
Service
Safety
Physical
Attaching the Strain Relief Bracket
Unpacking the MicroMMAC-T
Rack-Mounting the MicroMMAC-T
Installing the MicroMMAC-T
Wall-Mounting the MicroMMAC-T
Installing of Rack-Mount Brackets
Wall-Mounting the MicroMMAC-T
Connecting to a Power Source
Free-Standing Installation
Resetting the MICROMMAC-T
To reset the MicroMMAC-T
Setting the Ring Speed
To change the ring speed
To restore MicroMMAC-T parameters to the factory defaults
Setting the Nvram Switch
RJ45 Plug MIC Connector
Connecting Lobe Port Cabling
At TCU At device port
RJ45 Plug
10. UTP Configuration Example
11. STP Configuration Example
To attach a lobe segment to a MicroMMAC-T network port
Signal RJ45 DB9 Ring-In Ring-Out
Installing Tpim Modules
Pinout Cross-Reference for TPIMs
Setting Phantom and RI/RO Switches
To install a TPIM, perform the following steps
Tpim Installation
To connect a TPIM-T1 to a Twisted Pair Segment
Connecting STP Segments
To connect a segment to a TPIM-T2/-T4
Connecting Twisted Pair Segments
16. The TPIM-T2/-T4
Connecting Fiber Optic Link Segments
17. The TPIM-F2/-F3
To connect a fiber optic link segment to the TPIM-F2 /-F3
To check MicroMMAC-T installation
Checking the Installation
Use Local Management to Do the Following
Management Terminal Requirements
Attaching the Management Terminal
Management Terminal Setup Parameters
To attach a management terminal to the MicroMMAC-T
Terminal Settings for LM Terminal
Modem Cable Configuration and Setup
Menu Function Selection
To access Local Management
Accessing Local Management
MicroMMAC-TLocal Management Screen
Accessing Local Management via Telnet
Using Local Management
Accessing Local Management from a Modem
Setup Menu Screen
Main Menu Screen
Working with Local Management Screens
Setting or Modifying Local Management Screen Fields
Selecting a Menu Screen Option
Exiting Your Local Management Session
Exiting a Local Management Screen
System Level Screen
Setting the System Date
Setting the Host IP Address
Setting the System Time
To modify the Subnet Mask
Modifying the Subnet Mask
To set the Default Gateway
Setting the Default Gateway
Setting Automatic Beacon Recovery Process Abrp Fields
To set the Beacon Recovery field
Snmp Community Names Screen
Setting COM 1 and COM 2 Applications
To set the Number of Retries field
To set the Retry Interval field
Snmp Community Names Screen
Snmp Traps Screen
Access Policy
Community Name
Editing the Community Name field
Setting Snmp Traps
Enable Traps
Trap Destination
Trap Community Name
Ring Security Screen
Ring Security Screen
Station Address
Security Mode
Stn Edit
Nextscreen
SAVE/EXECUTE
Previousscreen
Return
Adding Stations to the Station Address Allowed List
Viewing the Revised Allowed List
Deleting Stations from the Station Address Allowed List
Device Statistics
Device Statistics Screen
Using the Accumulative Counter Mode
Selecting the Device Statistics Counter Mode
Setting the Refresh Field
Isolating Errors
Errors Received
Ring Information
AC Errors
Lost Frame Errors
NON-ISOLATING Errors
Chassis Status View Screen
Frame Copied Errors
Mode
Next
10. Chassis Status View Operational Screen
Using the Operational Mode Screen
To display the status of ports
To enable and disable select ports
Using the Administrative Mode Screen
Using the Ring OUT Enable Mode Screen
To enable all ports for all modules
To bypass all ports on a module
To reconnect a module to the token ring
Component Status Screen
To switch to and from STN and RO
13. Component Status View Screen
MIB Navigator Screen
To get help on specific commands
To access a list of MIB commands
To escape from the MIB Navigator screen
MIB Commands
Navigational commands
Navigation Built-In Special
Set
Built-In commands
To download a Flash image
Flash Download Screen
To chose the Runtime method
Download Method field
Toggle from Runtime to Bootprom using the spacebar
To choose the Bootprom method
Lanview Leds
Using Lanview LEDs
LCD Display
Using the LCD Display
Static System Messages
Static System Messages
Displayed Message Significance
Alarm Messages
Alarm Messages
Displayed Significance Messages
Unsaved Initialization Messages
Unsaved Failure or Error Messages
Normal Unsaved Initialization Messages
Saved System Messages
Saved System Messages
Displayed Message
Responding to Error Messages
Viewing Power UP Diagnostic Tests
To return to Local Management
To execute a response option
Power Supply Cord
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