Chapter Introduction | Cabletron Systems MICROMMAC-22T, 42T guide

CHAPTER 1

INTRODUCTION

Welcome to the Cabletron Systems MicroMMAC-22T/-24T/-42T/

-44T Stackable Token Ring Intelligent Hub User’s Guide. This manual provides installation instructions, network requirements, reference information, and operating instructions for the MicroMMAC-T (Figure 1-1) family of stackable hubs. Installing the MicroMMAC-T requires familiarity with the physical layer components of Token Ring (IEEE 802.5) data communications networks.

NOTE: Unless otherwise speciﬁed, this manual uses the term MicroMMAC-T to collectively refer to the MicroMMAC-22T, the MicroMMAC-24T, the MicroMMAC-42T, and the MicroMMAC-44T.

.

MicroMMAC-24TTOKEN RING HUB WITH LANVIEW®

SUPPORTING 100 OHM UTP CABLE

		LCD
					TPIM
	SPEED		CPU	ACT	Ring Out
4M	SPEED				Slot
4M	16M	DISPLAY RESET	16 Mb/s	MGMT	RO	TPIM
		DISPLAY RESET	COM 2 COM 1	MGMT		TPIM

24	23	22	21	20	19		18	17	16	15	14	13



12	11	10	9	8	7		6	5	4	3	2	1

RI

Figure 1-1. The MicroMMAC-T

1.1 CONTENTS OVERVIEW

This manual contains the following information:

Chapter 1, Introduction, outlines the contents of this manual and describes features of the MicroMMAC-T and its add-on components. It also lists sources where more information on Token Ring network implementation can be found.

Chapter 2, Requirements/Speciﬁcations, describes cabling requirements, network guidelines, and MicroMMAC-T operating speciﬁcations.

Chapter 3, Installation, contains MicroMMAC-T installation instructions and discusses network connections using various media types. This chapter includes instructions for setting the Ring Speed Switch, the Reset Switch, the NVRAM Switch, and the TPIM Phantom Switch. It also

1-1

Image 9

Cabletron Systems MICROMMAC-22T, 42T manual Chapter Introduction, Contents Overview

Contents

Page Iii 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 PolarityActive TCU Ports Local Management Cabletron’s Distributed LAN Monitor Mode Ring Speed SwitchFlash Eeprom Lanview LEDs COM Port Applications Reset ButtonLCD and LCD Display Button MIB Support Rmon MIB Support Rmon MIB RFC 1271/1513 SupportGroup Subgroup Section Stackable Capabilities Typical Stackable Conﬁguration BRIDGING/ROUTING Capabilities Remote Management Capabilities 1 SNA/WAN IntegrationTelnet Capabilities BRIMs Getting Help Recommended Reading MicroMMAC-T Ports/Cables Cable Specifications Attenuation and Impedance UTP Cable SpeciﬁcationsUTP Voice Grade and Category 3 Speciﬁcations Frequency Impedance Attenuation Type 3 Media Filters Maximum Lobe LengthsMaximum Number of Stations UTP Maximum Lobe Lengths STP Cable Speciﬁcations STP Cable SpeciﬁcationsTypes Frequency Impedance Attenuation STP Maximum Lobe Lengths Maximum Trunk LengthsSTP Cable Type Ring Speed Mbps STP Maximum Drive Distance Attenuation Mixed Cable TypesMultimode Fiber Optic Cable Speciﬁcations Cable Type Attenuation Maximum Drive Distance Single Mode Fiber Optic Cable Speciﬁcations Single Mode Fiber Optic Cable SpeciﬁcationsFiber Optic Budget Temperature Cable RECOMMENDATIONS/TROUBLESHOOTINGCrosstalk Noise COM 1/COM 2 Ports COM Port Specifications UPS Tpim SpecificationsSlip TPIM-T1 TPIM-T1 Pinouts TPIM-T2 TPIM-T4 Pinouts TPIM-F2 TPIM-F2 Speciﬁcations TPIM-F3Parameter Typical Worst Case Value Budget Parameter Typical Minimum Maximum REQUIREMENTS/SPECIFICATIONS Power Supply Requirements General SpecificationsOutput Min. Load Max. Load Max Power Environmental Requirements Safety ServicePhysical 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 Free-Standing Installation Connecting to a Power SourceResetting the MICROMMAC-T Setting the Ring Speed To reset the MicroMMAC-TTo 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 Installing Tpim Modules Signal RJ45 DB9 Ring-In Ring-OutPinout 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 Management Terminal Setup Parameters Attaching the Management TerminalTo attach a management terminal to the MicroMMAC-T Modem Cable Conﬁguration and Setup Terminal Settings for LM TerminalMenu 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 ModemSetup Menu Screen Main Menu Screen Setting or Modifying Local Management Screen Fields Working with Local Management ScreensSelecting 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 Setting the Default Gateway To set the Default GatewaySetting Automatic Beacon Recovery Process Abrp Fields To set the Beacon Recovery ﬁeld Snmp Community Names Screen Setting COM 1 and COM 2 ApplicationsTo set the Number of Retries ﬁeld To set the Retry Interval ﬁeld Snmp Community Names Screen Snmp Traps Screen Access PolicyCommunity Name Editing the Community Name ﬁeld Setting Snmp Traps Enable TrapsTrap Destination Trap Community Name Ring Security Screen Ring Security Screen Security Mode Station AddressStn Edit Nextscreen SAVE/EXECUTEPreviousscreen Return Viewing the Revised Allowed List Adding Stations to the Station Address Allowed ListDeleting Stations from the Station Address Allowed List Device Statistics Device Statistics Screen Selecting the Device Statistics Counter Mode Using the Accumulative Counter ModeSetting 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 modulesTo 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 access a list of MIB commands To get help on speciﬁc commandsTo escape from the MIB Navigator screen Navigational commands MIB CommandsNavigation 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 MessagesDisplayed Message Signiﬁcance Alarm Messages Alarm MessagesDisplayed Signiﬁcance Messages Unsaved Initialization Messages Unsaved Failure or Error Messages Normal Unsaved Initialization Messages Saved System MessagesSaved 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