Cabletron-systems SEH-22 Manuale Utente

SEH-22 AND SEH-24 10BASE-TSTACKABLE HUBUSER’S GUIDECABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03866-5005 SEH Book Page 1 Tuesday, March 19, 19

SEH FEATURESSEH USER’S GUIDE 1-3 Stack up to five SEH hubs using Cabletron Systems external HubSTACK Interconnect cables. Manage the stack by using th

CHAPTER 1: INTRODUCTION1-4 SEH USER’S GUIDE 1.5 STACKABLE CAPABILITIES The SEH is a non-intelligent hub designed to be managed by a Cabletron System

OPTIONAL FEATURESSEH USER’S GUIDE 1-5 Table 1-2 lists the board revision requirements for EPIMs used in the SEH-24. The board revision number is loca

CHAPTER 1: INTRODUCTION1-6 SEH USER’S GUIDE HubSTACK Interconnect Cables Use Cabletron HubSTACK Interconnect cables to stack hubs together. Table 1-

SEH USER’S GUIDE 2-1 CHAPTER 2INSTALLATIONREQUIREMENTS/SPECIFICATIONS This chapter describes network guidelines, power requirements, and operating sp

CHAPTER 2: INSTALLATION REQUIREMENTS/SPECIFICATIONS2-2 SEH USER’S GUIDE 2.1.2 10BASE-T UTP and STP Cable Specifications The devices and 10BASE-T Twi

CABLE SPECIFICATIONSSEH USER’S GUIDE 2-3 Delay The maximum propagation delay of a 10BASE-T link segment must not exceed 1000 ns. This 1000 ns maximum

CHAPTER 2: INSTALLATION REQUIREMENTS/SPECIFICATIONS2-4 SEH USER’S GUIDE2.2 NETWORK PORT SPECIFICATIONSThe SEH-22 and SEH-24 network ports use shielded

OPERATING SPECIFICATIONSSEH USER’S GUIDE 2-52.4 OPERATING SPECIFICATIONSThis section describes the operating specifications for the SEH. Cabletron Syst

CHAPTER 2: INSTALLATION REQUIREMENTS/SPECIFICATIONS2-6 SEH USER’S GUIDEFault Protection:Each segment disconnects itself from the other segments if 32

SEH USER’S GUIDE i NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this document wit

OPERATING SPECIFICATIONSSEH USER’S GUIDE 2-7Safety This unit meets the safety requirements of UL1950 (without D3 deviations), CSA C22.2 No. 950, and E

SEH USER’S GUIDE 3-1CHAPTER 3INSTALLATIONThis chapter outlines the procedure for attaching the SEH to a network as either a stackable or standalone de

CHAPTER 3: INSTALLATION3-2 SEH USER’S GUIDE3.2.1 Tabletop or Shelf InstallationThe following subsection provides guidelines for installation on a tabl

INSTALLING THE SEHSEH USER’S GUIDE 3-3If the installation requires that the SEH be stacked, proceed to Section 3.2.5. Otherwise, continue by powering-

CHAPTER 3: INSTALLATION3-4 SEH USER’S GUIDEFigure 3-2. SEH Rack Mounting Hardware3.2.3 Attaching the Strain Relief BracketAttach the strain relief bra

INSTALLING THE SEHSEH USER’S GUIDE 3-53.2.4 Rack Mounting the SEHRefer to Figure 3-4 and perform these steps to install the SEH in a 19-inch rack.1. L

CHAPTER 3: INSTALLATION3-6 SEH USER’S GUIDEFigure 3-5. Installing the SEH in the RackIf the installation requires that the SEH is to be stacked, proce

INSTALLING THE SEHSEH USER’S GUIDE 3-7To stack SEHs, refer to Figure 3-6 and perform the following steps:1. Attach one end of the SEH HubSTACK Interco

CHAPTER 3: INSTALLATION3-8 SEH USER’S GUIDEIf one end of a HubSTACK Interconnect cable is disconnected without disconnecting the other end attached to

CONNECTING THE SEH TO THE POWER SOURCESEH USER’S GUIDE 3-93.3 CONNECTING THE SEH TO THE POWER SOURCEConnect the SEH to the power source as follows:1.

NOTICE ii SEH USER’S GUIDE FCC NOTICE This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) t

CHAPTER 3: INSTALLATION3-10 SEH USER’S GUIDE2. Slide the new EPIM into place, making sure that the connectors on the rear of the EPIM align correctly

SEH USER’S GUIDE 4-1CHAPTER 4CONNECTING TO THE NETWORKThis chapter outlines the procedure for connecting the SEH to a network. Ensure that the network

CHAPTER 4: CONNECTING TO THE NETWORK4-2 SEH USER’S GUIDEConnect twisted pair segments to the SEH as follows:1. Insert the RJ45 connector from each twi

CONNECTING THE SEH TO THE NETWORKSEH USER’S GUIDE 4-34.1.2 Connecting a UTP Segment to an EPIM-TBefore connecting a segment to the EPIM-T, check each

CHAPTER 4: CONNECTING TO THE NETWORK4-4 SEH USER’S GUIDEc. Check the cable for continuity.d. Check that the twisted pair connection meets dB loss and

CONNECTING THE SEH TO THE NETWORKSEH USER’S GUIDE 4-5Caution: Do not touch the ends of the fiber optic strands, and do not let the ends come in contac

CHAPTER 4: CONNECTING TO THE NETWORK4-6 SEH USER’S GUIDEFigure 4-3. The EPIM-F1, EPIM-F2 and EPIM-F34.1.4 Connecting a Thin-Net Segment to an EPIM-CTo

CONNECTING THE SEH TO THE NETWORKSEH USER’S GUIDE 4-73. If the Internal Termination switch is in the OFF position:a. Attach a BNC tee-connector to the

CHAPTER 4: CONNECTING TO THE NETWORK4-8 SEH USER’S GUIDE4.1.5 Connecting an AUI Cable to an EPIM-AConnect an EPIM-A to an external network segment as

CONNECTING THE SEH TO THE NETWORKSEH USER’S GUIDE 4-95. Check that the PWR LED on the EPIM-A is on. If the LED is off, contact Cabletron Systems Techn

NOTICESEH USER’S GUIDE iii CABLETRON SYSTEMS, INC.PROGRAM LICENSE AGREEMENT IMPORTANT: Before utilizing this product, carefully read this License Ag

CHAPTER 4: CONNECTING TO THE NETWORK4-10 SEH USER’S GUIDE2. Attach one end of an AUI cable, no longer than 50 meters in length, to the port on the EPI

SEH USER’S GUIDE 5-1CHAPTER 5TROUBLESHOOTINGThis chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network problems.

CHAPTER 5: TROUBLESHOOTING5-2 SEH USER’S GUIDE2. If the remote station is ready and the LNK LED is on, but no data passes through the port, one of two

USING LANVIEWSEH USER’S GUIDE 5-3Figure 5-1. LANVIEW LEDsPWR (Green)When this LED is on, the SEH is receiving power. If this LED is off, it indicates

CHAPTER 5: TROUBLESHOOTING5-4 SEH USER’S GUIDEMGMT (Green Flashing) This LED flashes when an intelligent hub manages the SEH. If this LED does not flash

SEH USER’S GUIDE A-1APPENDIX AEPIM INFORMATIONA.1 EPIM SPECIFICATIONSEPIMs enable the connection of the SEH to the main network using different media

APPENDIX A: EPIM INFORMATIONA-2 SEH USER’S GUIDEA.1.2 EPIM-F1 and EPIM-F2 The EPIM-F1 and EPIM-F2 shown in Figure A-2 support Multimode Fiber Optic ca

EPIM SPECIFICATIONSSEH USER’S GUIDE A-3A.1.3 EPIM-F3The EPIM-F3 shown in Figure A-3 supports Single Mode Fiber Optic cabling. It has an internal Cable

APPENDIX A: EPIM INFORMATIONA-4 SEH USER’S GUIDENote: The transmitter power levels given above are Peak Power Levels after optical overshoot. You must

EPIM SPECIFICATIONSSEH USER’S GUIDE A-5A.1.4 EPIM-CThe EPIM-C supports thin-net coaxial cabling and is equipped with an internal Cabletron Systems TMS

NOTICE iv SEH USER’S GUIDE EXCLUSION OF WARRANTYAND DISCLAIMER OF LIABILITY 1. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabl

APPENDIX A: EPIM INFORMATIONA-6 SEH USER’S GUIDEA.1.5 EPIM-A and EPIM-X (AUI Port)The EPIM-A is a DB15 female connector used to attach segments to an

EPIM CABLE SPECIFICATIONSSEH USER’S GUIDE A-7A.2 EPIM CABLE SPECIFICATIONSThe following subsections provide cable specifications for the various EPIMs

APPENDIX A: EPIM INFORMATIONA-8 SEH USER’S GUIDEA.2.2 Single Mode Fiber Optic Cable SpecificationsTable A-2 shows Single Mode Fiber Optic Cable specific

EPIM CABLE SPECIFICATIONSSEH USER’S GUIDE A-9A.2.3 Thin-Net Network Requirements for the EPIM-CWhen you connect a thin-net segment to the SEH (via an

APPENDIX A: EPIM INFORMATIONA-10 SEH USER’S GUIDEA.2.4 AUI Cable Requirements for the EPIM-A and EPIM-X To connect an external network segment to the

SEH USER’S GUIDE Index-1CCable Specifications 2-1UTP and STP 2-2Connecting to the Network 4-1DDaughter Board 1-6Daughter Board Upgrade Kit 1-6EEMC Req

POWER SUPPLY CORDThe mains cord used with this equipment must be a 2 conductor plus ground type with minimum 0.75 mm square conductors and must incorp

SEH USER’S GUIDE v TABLE OF CONTENTS CHAPTER 1 INTRODUCTION 1.1 USING THIS MANUAL ...

CONTENTS vi SEH USER’S GUIDE CHAPTER 5 TROUBLESHOOTING 5.1 INSTALLATION CHECK-OUT...5-1

SEH USER’S GUIDE 1-1 CHAPTER 1INTRODUCTION Welcome to the Cabletron Systems SEH-22 and SEH-24 10BASE-T Stackable Hubs User’s Guide . This manual

CHAPTER 1: INTRODUCTION1-2 SEH USER’S GUIDE 1.2 GETTING HELP If you need additional support related to the Cabletron Systems SEH, or if you have any