Cabletron-systems STHI 44 STHI-44 User Manual

CABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03866-5005 STH-22/-24/-42/-44STACKABLE TOKEN RING HUBUSER’S GUIDE

STH Overview Page 1-2 Connector Ports (TCUs) for connections to stations and other network devices. Figure 1-1. Front and Back Views of the STH-24Up

LANVIEW LEDs Page 1-3 1.2.1 LANVIEW LEDs Cabletron Systems’ LANVIEW Status Monitoring and Diagnostics System is a troubleshooting tool. Conveniently

Automatic Beacon Recovery Process Page 1-4wrong ring speed. If a ring speed mismatch is detected, the STH disables the port to keep the misconfigured

Related Manuals Page 1-5 By default, each of the STH hub’s TCU ports is configured to its STN (station) setting to support concentrator lobe connectio

Related Manuals Page 1-6Figure 1-2. Improved Beacon Recovery Resolution for MAUs(8 Stations)(8 Stations)(8 Stations)(8 Stations)STH TCUsRingOutRingOu

Getting Help Page 1-7 1.4 Getting Help If you need additional support related to the Cabletron Systems STH, or if you have any questions, comments, o

Page 2-1 CHAPTER 2 REQUIREMENTS & SPECIFICATIONS This chapter describes network guidelines, power requirements, and operating specifications for t

General Considerations Page 2-2 to re-route cabling away from potential noise sources, or to ensure that the electrical wiring in the area is properl

Cable Specifications Page 2-3 • Where practical, dedicated cable should be used for Token Ring signals.• Work area wall plates and outlets used for t

UTP Cable Categories Page 2-4 Category 3 consists of (usually) four Unshielded Twisted Pairs of 24 AWG solid wire for data or voice communication. (

NOTICE iii NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without pri

UTP Lobe LengthsPage 2-5UTP cabling to any non-Token Ring network conductors (telephone, etc.) or ground. If in doubt, test wiring before using.2.3.2

STP Cable CategoriesPage 2-62.4.1 STP Cable CategoriesThe supported STP cable types meet the following specifications:IBM Type 1 consists of two shield

TCU SpecificationsPage 2-72-4. Cable routing, connector attenuation, noise and crosstalk can adversely affect the maximum lobe length. Mixed STP Cable

Operating SpecificationsPage 2-8On STH models -42/-44, each RJ45 connector is encased in a metallic shield which provides a means of connection for th

Ring SequencePage 2-9Note: When cancelling a MIB override, the user may have to perform the switch and power-cycle procedure twice (as described in th

Environmental RequirementsPage 2-10under all conditions of line at full load. The minimum and maximum load current from each output is shown below.2.6

Page 3-1CHAPTER 3INSTALLATIONThis chapter outlines the procedure for installing the STH and adding it to a stack. Confirm that the network meets the gu

Adding the STH to a StackPage 3-23.2.2 Adding the STH to a StackSTH hubs are star-wired to the intelligent hub. To add STH hubs to a stack, refer to F

Attaching the Strain Relief BracketPage 3-33.2.3 Attaching the Strain Relief BracketAttach the strain relief bracket to the front of the STH as follow

Wall-Mounting the STHPage 3-4Figure 3-3. Installing the Rack-Mount BracketsFigure 3-4. Installing the STH in a Rack3.2.5 Wall-Mounting the STHWhen an

NOTICE iv FCC Notice This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may no

Wall-Mounting the STHPage 3-5Figure 3-5. Installing the Wall Mounting Brackets2. Select the wall location for the STH within 7 feet of a power outlet.

Free-Standing InstallationPage 3-6Figure 3-6. Wall-mounting the STH3.2.6 Free-Standing InstallationFor a free-standing shelf or tabletop installation,

Connecting the STH to the Power SourcePage 3-73.2.7 Connecting the STH to the Power SourceNote: The STH has a universal power supply which will accept

Finishing the InstallationPage 3-8c. Check that the twisted pair connection meets dB loss and cable specifications outlined Chapter 2.If a link still

Page 4-1CHAPTER 4TROUBLESHOOTINGThis chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network problems.4.1 LANVIEW

Trouble ResolutionPage 4-2Loss Of PowerIf the STH is having power problems, check the power delivery system (power cable, power outlet, circuit breake

NOTICE v CABLETRON SYSTEMS, INC.PROGRAM LICENSE AGREEMENT IMPORTANT: Before utilizing this product, carefully read this License Agreement.This docum

NOTICE vi EXCLUSION OF WARRANTYAND DISCLAIMER OF LIABILITY 1. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in writing,

NOTICE vii UNITED STATES GOVERNMENTRESTRICTED RIGHTS The enclosed product (a) was developed solely at private expense; (b) contains “restricted compu

CONTENTS ix CONTENTS CHAPTER 1 INTRODUCTION 1.1 Using This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.2 STH Overview . .

CONTENTS x CHAPTER 3 INSTALLATION 3.1 Unpacking the STH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.2 Installing the STH . . . .

Page 1-1 CHAPTER 1 INTRODUCTION Welcome to the Cabletron Systems STH-22/-24/-42/-44 Stackable Token Ring Hub User’s Guide . The STH (Stackable Token