USER’S GUIDE
MICROMMAC-22T/24T/42T/44T STACKABLE TOKEN RING INTELLIGENT HUBS
Copyright March 1996 by Cabletron Systems, Inc
DOC NOTICE
FCC NOTICE
VCCI NOTICE
CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT
EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY
CABLETRON SOFTWARE PROGRAM LICENSE
UNITED STATES GOVERNMENT RESTRICTED RIGHTS
CHAPTER 2 REQUIREMENTS/SPECIFICATIONS
CONTENTS
CHAPTER 3 INSTALLATION
CHAPTER 1 INTRODUCTION
CHAPTER 4 LOCAL MANAGEMENT
CHAPTER 5 TROUBLESHOOTING
CONTENTS
5.2.4 Saved System Messages 5.3 VIEWING POWER UP DIAGNOSTIC TESTS
CHAPTER INTRODUCTION
1.1 CONTENTS OVERVIEW
DISPLAY RESET
Figure 1-1. The MicroMMAC-T
INTRODUCTION
1.2 MicroMMAC-T OVERVIEW
Telnet
1.3 MicroMMAC-T FEATURES
Figure 1-2. Typical MicroMMAC-T Configuration Scenario
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 Support
Table 1-2. RMON MIB RFC 1271/1513 Support Cont
1.4 STACKABLE CAPABILITIES
Figure 1-3. Typical Stackable Configuration
1.5 BRIDGING/ROUTING CAPABILITIES
1.6 REMOTE MANAGEMENT CAPABILITIES
1.5.1 SNA/WAN Integration
1.7 TELNET CAPABILITIES
1.9 GETTING HELP
1.8 RECOMMENDED READING
Local Area Networks, Token Ring Access Method, IEEE Standard 802.5
Commercial Building Wiring Standard, EIA/TIA-568
2.1 CABLE SPECIFICATIONS
CHAPTER REQUIREMENTS/SPECIFICATIONS
Attenuation and Impedance
2.1.1 UTP Cable Specifications
Type 3 Media Filters
Maximum Lobe Lengths
Maximum Number of Stations
Attenuation and Impedance
2.1.2 STP Cable Specifications
Maximum Lobe Lengths
Table 2-3. STP Cable Specifications
Maximum Number of Stations
Maximum Trunk Lengths
Table 2-4. STP Maximum Lobe Lengths
Table 2-5. STP Maximum Drive Distance
optic cable length is 2 km
The maximum allowable fiber
2187.2 yards. However, IEEE
802.5 specifications allow for a
Table 2-7. Single Mode Fiber Optic Cable Specifications
2.1.4 Single Mode Fiber Optic Cable Specifications
Fiber Optic Budget
Maximum Trunk Lengths
Temperature
2.2 CABLE RECOMMENDATIONS/TROUBLESHOOTING
Fiber Optic Budget
Crosstalk
2.3 COM PORT SPECIFICATIONS
Booting/Diagnostics
2.4 TPIM SPECIFICATIONS
Local Management
SLIP
TPIM-T4
TPIM-T2
TPIM-F2
NOTE Transmitter power and receive sensitivity levels, shown in
TPIM-F3
REQUIREMENTS/SPECIFICATIONS
TPIM-F2 Specifications
Parameter
Table 2-9. TPIM-F3 Specifications
When measuring power levels with an Average Power Meter, add 3 dBm
2.5.1 Power Supply Requirements
2.5 GENERAL SPECIFICATIONS
2.5.2 Environmental Requirements
Service
2.5.3 Safety
2.5.4 Physical
2.5.5
3.1 UNPACKING THE MicroMMAC-T
CHAPTER INSTALLATION
3.2 ATTACHING THE STRAIN RELIEF BRACKET
3.3.1 Rack-Mounting the MicroMMAC-T
3.3 INSTALLING THE MicroMMAC-T
INSTALLATION
Figure 3-2. Installing of Rack-Mount Brackets
3.3.2 Wall-Mounting the MicroMMAC-T
Figure 3-3. Installing the MicroMMAC-T in a 19-inch Rack
Molly Screw Anchors Molly Screws Bracket Screws Wall Mounting Bracket
Figure 3-4. Wall-Mounting the MicroMMAC-T
3.4 CONNECTING TO A POWER SOURCE
3.3.3 Free-Standing Installation
3.5 RESETTING THE MICROMMAC-T
Figure 3-5. Free-Standing Installation
To reset the MicroMMAC-T
3.6 SETTING THE RING SPEED
To change the ring speed
To restore MicroMMAC-T parameters to the factory defaults
3.7 SETTING THE NVRAM SWITCH
NOTE Clearing and resetting NVAM does not reset the date and time
3.8 CONNECTING LOBE PORT CABLING
RJ45 Plug
INSTALLATION
at TCU
at device port
Figure 3-10. UTP Configuration Example
INSTALLATION
3-10
Lobe Cable
To attach a lobe segment to a MicroMMAC-T network port
INSTALLATION
Figure 3-11. STP Configuration Example
Figure 3-12. MicroMMAC-T Network Ports
3.9 INSTALLING TPIM MODULES
Table 3-1. Pinout Cross-Reference for TPIMs Cont
3.9.1 Setting Phantom and RI/RO Switches
To install a TPIM, perform the following steps
3.9.2 TPIM Installation
CAUTION Observe all static precautions while handling TPIMs
To connect a TPIM-T1 to a Twisted Pair Segment
3.9.3 Connecting STP Segments
To connect a segment to a TPIM-T2/-T4
3.9.4 Connecting Twisted Pair Segments
Figure 3-16. The TPIM-T2/-T4
3.9.5 Connecting Fiber Optic Link Segments
Figure 3-17. The TPIM-F2/-F3
To connect a fiber optic link segment to the TPIM-F2 /-F3
To check MicroMMAC-T installation
3.10 CHECKING THE INSTALLATION
4.1 MANAGEMENT TERMINAL REQUIREMENTS
CHAPTER LOCAL MANAGEMENT
Use Local Management to Do the Following
4.1.1 Attaching the Management Terminal
4.1.2 Management Terminal Setup Parameters
To attach a management terminal to the MicroMMAC-T
Table 4-1. Terminal Settings for LM Terminal
4.1.3 Modem Cable Configuration and Setup
To access Local Management
4.2 ACCESSING LOCAL MANAGEMENT
Figure 4-3. MicroMMAC-T Local Management Screen
4.2.1 Accessing Local Management via Telnet
4.3 USING LOCAL MANAGEMENT
4.2.2 Accessing Local Management from a Modem
SETUP MENU Screen
MAIN MENU Screen
Setting or Modifying Local Management Screen Fields
4.3.1 Working with Local Management Screens
SETUP MENU STATUS MENU DEVICE STATISTICS MIB NAVIGATOR EXIT
SETUP MENU
Exiting Your Local Management Session
Exiting a Local Management Screen
Setting the System Date
4.3.2 The SYSTEM LEVEL Screen
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
NOTE ARBP is supported only by Cabletron products
To set the Beacon Recovery field
Setting COM 1 and COM 2 Applications
4.3.3 The SNMP COMMUNITY NAMES Screen
To set the Number of Retries field
To set the Retry Interval field
Read-Write The user can view all LM fields and can edit all but the
Access Policy
4.3.4 The SNMP TRAPS Screen
Community Name
Editing the Community Name field
Setting SNMP Traps
Enable Traps
Trap Destination
Trap Community Name
4.3.5 The RING SECURITY Screen
You can select from two modes of ring security Alarm Only
STATION ADDRESS
Security Mode
Stn Edit
NOTE The NMS receives each station added trap once only
SAVE/EXECUTE
Changing the Security Mode
NEXTSCREEN
PREVIOUSSCREEN
Adding Stations to the STATION ADDRESS Allowed List
Viewing the Revised Allowed List
Deleting Stations from the STATION ADDRESS Allowed List
NOTE You cannot delete the Micro-MMAC-T address from the list
DEVICE STATISTICS
4.3.6 The DEVICE STATISTICS Screen
Using the ACCUMULATIVE Counter Mode
Selecting the Device Statistics Counter Mode
Setting the Refresh Field
Frames Received
ISOLATING ERRORS
Errors Received
Line Errors
Burst Errors
Abort Transmit Errors
AC Errors
Internal Errors
RING INFORMATION
NON-ISOLATING ERRORS
Ports Enabled
Lost Frame Errors
Ring Number
Frame Copied Errors
4.3.7 The CHASSIS STATUS VIEW Screen
Rcvr Congestion Errors
Token Errors
Port Status
Mode
Virtual Flexible Network Bus VFNB
ENABLE ALL PORTS ADMINISTRATIVE mode only
Screen Mode Status
NEXT
PREVIOUS
Using the OPERATIONAL Mode Screen
Setting the REFRESH Field
Return key
To display the status of RI/RO ports, BRIMs, or the MicroSNAC device
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
To switch to and from STN and RO
4.3.8 The COMPONENT STATUS Screen
Figure 4-13. COMPONENT STATUS VIEW Screen
4.3.9 The MIB NAVIGATOR Screen
To get help on specific commands
To access a list of MIB commands
To escape from the MIB NAVIGATOR screen
bran
next
Built-In commands
tree
whoami
ping
4.3.10 The FLASH DOWNLOAD Screen
snmp branch
snmpget
To chose the RUNTIME method
Download Method field
2. Toggle from RUNTIME to BOOTPROM using the spacebar
To choose the BOOTPROM method
Flash Image Server IP
Flash Image File Name
5.1 USING LANVIEW LEDs
CHAPTER TROUBLESHOOTING
5.2 USING THE LCD DISPLAY
Table 5-2. Static System Messages
5.2.1 Static System Messages
TROUBLESHOOTING
5.2.2 Alarm Messages
Table 5-3. Alarm Messages
Displayed
Table 5-3. Alarm Messages Cont
5.2.3 Unsaved Initialization Messages
Table 5-4. Unsaved Failure or Error Messages
Table 5-5. Normal Unsaved Initialization Messages
5.2.4 Saved System Messages
Table 5-6. Saved System Messages
NOTE The LCD displays the following message whenever the POWER
5.3 VIEWING POWER UP DIAGNOSTIC TESTS
Responding to Error Messages
To return to Local Management
To execute a response option
GERMAN
POWER SUPPLY CORD
SPANISH
FRENCH
