Manuale d’uso / di manutenzione del prodotto 100BASE-TX del fabbricante Intel
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Intel Express 100BASE-TX Stackable Hub User Guide.
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iii © 1995 by Intel Corporation. All rights reserved. †Other brand and product names are registered trademarks or trademarks of their respective holders. Statement of Conditions In the interest of improving internal design, operational function, or reliability, Intel Corp.
iv Certificate of the Manufacturer/Importer It is hereby certified that the 100BASE-TX Stackable Hub has been suppressed in accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992.
v Limited 1-year hardware warranty Intel warrants to the original owner that the hardware product delivered in this package will be free from defects in material and workmanship. This warranty does not cover the product if it is damaged in the process of being installed or improperly used.
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i Contents Chapter 1 Overview .................................................... 1 Features............................................................................................... 1 Physical Description........................................
ii Appendix A Technical Specifications and Optional Equipment ................................................ 33 Technical Specifications .................................................................. 33 Optional Equipment .......................
1 Overview This chapter introduces the Intel Express 100BASE-TX stackable hub and covers the following topics: • A summary of the key features of the Express hub • A physical description of the Ex.
C H A P T E R 1 Intel Express 100BASE-TX St ackable Hub 2 – 100BASE-T Media adapter slot to accommodate an optional media adapter that allows the repeater to be connected to other 100BASE-T network devices.
CHAPTER 1 O v e r v i e w 3 Chassis The Express hub components are enclosed in a 19-inch (48.26- centimeter) wide chassis, which is 1.5 EIA rack-mount spaces high. The chassis consists of a metal frame and a plastic front panel, and it contains components that are pertinent to the operation of the hub.
C H A P T E R 1 Intel Express 100BASE-TX St ackable Hub 4 Front Panel The front panel of the Express hub provides 12 100BASE-T ports, an MDI/MDI-X switch, an LED matrix, a media adapter slot, and an expansion slot.
CHAPTER 1 O v e r v i e w 5 The maximum cable distance between the port and the attached device is 100 meters (328 feet), including all patch cables, panels, and connectors. MDI/MDI-X Switch The MDI/MDI-X switch on the front panel of the Express hub is a recessed push-button switch that allows you to select MDI or MDI-X wiring for port 1.
C H A P T E R 1 Intel Express 100BASE-TX St ackable Hub 6 This shows the LED matrix on the Express hub. Pwr Stat RPS Col Data % Expansion Slot 1 1 13 2 14 3 15 4 16 5 17 6 18 7 19 8 20 9 21 10 22 11 2.
CHAPTER 1 O v e r v i e w 7 Type Label Color Meaning 100BASE-T Media adapter status Media Adapter 1 Green Amber Off A media adapter is installed in the media adapter slot, link status is good, and the port is not partitioned. Link status is good and the port is partitioned.
C H A P T E R 1 Intel Express 100BASE-TX St ackable Hub 8 100BASE-T Media Adapter Slot The media adapter slot is located in the upper left-hand corner of the Express hub and accommodates an optional 100BASE-T media adapter. A 100BASE-T media adapter allows you to connect to other 100BASE-T network devices using a different media.
CHAPTER 1 O v e r v i e w 9 Rear Panel The rear panel of the Express hub provides an AC power receptacle, a Redundant Power connector, and two cascade cable connectors.
C H A P T E R 1 Intel Express 100BASE-TX St ackable Hub 10 The cascade cable extends the functionality of one hub to a maximum of six hubs in a stack. This stack then functions as a single repeater or collision domain.
11 Installing and Removing the Express Hub This chapter describes • Preparing the installation site. • Unpacking the equipment. • Meeting tool and materials requirements. • Installing the hub. • Installing multiple hubs. • Removing a hub. • Installing and removing filler panels.
C H A P T E R 2 Intel Express 100BASE-TX St ackable Hub 12 Site Preparation Before you install the Express hub, prepare the installation site. Make sure the operating environment meets the physical requirements of the equipment.
C H A P T E R 2 Installi ng and Removing the Express Hub 13 Package Contents Before you install the Express hub, check to see that you have these items: Screws & Feet 5907.
C H A P T E R 2 Intel Express 100BASE-TX St ackable Hub 14 Installing an Express hub This section provides information and instructions for installing a single Express hub in a rack or on a table or shelf. For instructions on installing multiple Express hubs, see “Installing Multiple Hubs” later in this chapter.
C H A P T E R 2 Installi ng and Removing the Express Hub 15 3. Insert two pan-head screws with nylon washers through each mounting bracket and into the rack. 4. Using a #2 Phillips screwdriver, tighten the screws to secure the hub to the rack. 5. Continue with “Completing the Installation” to finish this installation procedure.
C H A P T E R 2 Intel Express 100BASE-TX St ackable Hub 16 2. Install any optional modules in the media adapter and/or expansion slots in the hub. a. Remove the filler panel from the slot. For instructions on removing filler panels, see “Installing and Removing Filler Panels” later in this chapter.
C H A P T E R 2 Installi ng and Removing the Express Hub 17 Installing Multiple Hubs This section describes building a stack of Express hubs. Included in this section are the guidelines for stacking and cascading Express hubs and the physical requirements for installing multiple hubs.
C H A P T E R 2 Intel Express 100BASE-TX St ackable Hub 18 Mounting Requirements for Installing Multiple Hubs Position the hub you want to be numbered 1 at the top of the stack. When an NMM is installed in the stack, it assigns unit numbers starting from the top of the stack.
C H A P T E R 2 Installi ng and Removing the Express Hub 19 Installing and Connecting Multiple Hubs The procedure for installing and connecting multiple hubs is similar for rack installations and table or shelf installations. When installing multiple hubs, follow this sequence: • Install the hubs.
C H A P T E R 2 Intel Express 100BASE-TX St ackable Hub 20 d. Tighten the screw locks on the cable connectors to secure the plug to the hub. e. Repeat steps a through d for all the hubs in the stack. 3. Connect the power cords to the AC power receptacles on the rear panel of all the hubs in the stack.
C H A P T E R 2 Installi ng and Removing the Express Hub 21 For hubs that are mounted on a rack, you may have to remove the inoperable hub from the stack and move the adjacent hub up one rack mounting space, or install a replacement hub in the rack, before connecting the cascade cable to the new hub.
C H A P T E R 2 Intel Express 100BASE-TX St ackable Hub 22 To remove a filler panel, loosen the screws on the front of the filler panel, grasp the tab on the front of the panel, and pull the filler panel out of the slot. 5914 Technology by Bay Networks Intel 100BASE Removing a filler panel To install a filler panel, follow these steps: 1.
23 Physical Configuration Guidelines This chapter describes • Making connections to ports on the Express hub. • Verifying the installation. • The unit numbering convention.
C H A P T E R 3 Intel Express 100BASE-TX St ackable Hub 24 Network Configuration Decisions Before connecting your network devices to the ports on the Express hub, make sure you have made the following network configuration decisions: • Ensure that the new connections are within the simple Fast Ethernet repeater rules.
C H A P T E R 3 Physical Configurati on Guidelines 25 Connecting Cables to the Hub You can connect devices directly to ports on the Express hub, or to ports on installed media adapter and host modules. This illustration shows how to connect UTP or STP cable to RJ-45 connectors and fiber optic cable to SC connectors.
C H A P T E R 3 Intel Express 100BASE-TX St ackable Hub 26 Verifying Installation After you complete all port and power connections to the Express hub, verify that the installation is successful by observing the LEDs on the front panel of the hub.
C H A P T E R 3 Physical Configurati on Guidelines 27 • If an optional module is installed in the expansion slot, the Expansion Slot Stat LED lights green to indicate the module in the expansion slot has passed the confidence test and is operating normally.
C H A P T E R 3 Intel Express 100BASE-TX St ackable Hub 28 Unit Numbering Convention This section provides information about the hub unit numbering convention. The unit numbering convention is invoked when an NMM is installed in one of the Express hubs in a stack.
C H A P T E R 3 Physical Configurati on Guidelines 29 In a stack of four hubs, if you remove a hub that is assigned unit 2 and connect the cascade cable of unit 1 to unit 3, the hub that was assigned unit 3 will reset and be renumbered as unit 2.
C H A P T E R 3 Intel Express 100BASE-TX St ackable Hub 30 Connecting 100BASE-T Workstations to the Hub You can connect up to 12 workstations to 12 fixed ports with RJ-45 connectors on the Express hub, provided that the workstations are configured to operate at 100 Mbps (see “100 Mbps Network Devices” earlier in this chapter).
C H A P T E R 3 Physical Configurati on Guidelines 31 100BASE-T Switched LAN Integrating switching into the network enables network microsegmentation, which increases the total capacity and performance of the network. You can add 100 Mbps workgroups to the network and connect them to individual ports on the switch.
C H A P T E R 3 Intel Express 100BASE-TX St ackable Hub 32 By integrating the switching hub into the network that populates both 10 Mbps and 100 Mbps workstations, both groups experience the benefits .
33 Appendix A: Technical Specifications and Optional Equipment This appendix provides technical specification for the Express 100BASE-TX stackable hub. It also describes optional equipment supported by the Express hub. Technical Specifications Network Protocol and Standards Compatibility IEEE 802.
APPENDIX A I n t e l E x p r e s s 100BASE-TX Stackabl e Hub 34 Physical Specifications Dimensions: 11.18 (l) by 17.25 (w) by 2.57 (h) in 28.40 (l) by 43.
APPENDIX A T e c h n i c a l S p e c ifications and Optional Equipment 35 Interface Options RJ-45 connectors for Category 5 UTP (2-pair wire) and 100-ohm STP (2-pair wir e) 100BASE-TX Ethernet interfa.
APPENDIX A I n t e l E x p r e s s 100BASE-TX Stackabl e Hub 36 Network Management Module The 100BASE-T NMM fits into the expansion slot and allows you to extend per-port advanced Simple Network Management Protocol (SNMP) management functions to each Express hub in your stack.
APPENDIX A T e c h n i c a l S p e c ifications and Optional Equipment 37 You can install up to six 100BASE-TX Host Modules in an unmanaged stack to provide you with 144 ports per Fast Ethernet segment. In a managed stack, you can install up to five host modules to provide you with 132 ports per Fast Ethernet segment.
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39 Appendix B: 100BASE-T Topology Rules and Guidelines This appendix describes • 100BASE-T physical layer media specifications • Repeater rules For a complete explanation of the set of 100BASE-T rules and guidelines, refer to the Institute of Electronics Engineers (IEEE) 100BASE-T 802.
APPENDIX B I n t e l E x p r e s s 100BASE-TX Stackabl e Hub 40 The following table lists the cable and connector types and the coding scheme that each media specification uses: Media specification Cable type(s) Connector type(s) Coding scheme 100BASE-TX Cat.
APPENDIX B 100BASE-T Topology Rules and Guidelines 41 This table lists the maximum diameter of Class I repeater collision domains when copper, fiber, and mixed copper and fiber media types are used: R.
APPENDIX B I n t e l E x p r e s s 100BASE-TX Stackabl e Hub 42 100BASE-T workstations 100BASE-T workstations Stack of 100BASE-T hubs Stack of 100BASE-T hubs 100BASE-TX Switching hub Wiring closet 400 m total network topology 400 m total network diameter 100 meter Category 5 UTP 5872.
APPENDIX B 100BASE-T Topology Rules and Guidelines 43 100BASE-T workstations 100BASE-T workstations Stack of 100BASE-T hubs Stack of 100BASE-T hubs 100BASE-TX switching hub Wiring closet 521.6 m total network topology 100 meter Category 5 UTP 160.
APPENDIX B I n t e l E x p r e s s 100BASE-TX Stackabl e Hub 44 100BASE-T workstations 100BASE-T workstations Stack of 100BASE-T hubs Stack of 100BASE-T hubs Stack of 100BASE-T hubs Stack of 100BASE-T hubs 100BASE-TX switching hub 100BASE-TX switching hub 100 meter Category 5 UTP 160.
APPENDIX B 100BASE-T Topology Rules and Guidelines 45 After you calculate values for each network device in the path, use these values to determine the PDV for all paths in your network. If your path delays exceed 512 bit times, your network may suffer from late collisions or cyclic redundancy check (CRC) errors.
APPENDIX B I n t e l E x p r e s s 100BASE-TX Stackabl e Hub 46 2. Add the LSDVs for all the segments in the path. 3. Determine the delay for each repeater in the path. Repeater delay values are specified in bit times. The default maximum repeater delay value for a Class 1 repeater is 140 bit times.
47 Index 100 Mbps adapter cards, 24, 30 workgroups, 31 100BASE-FX Media Adapter description, 35 in media adapter slot, 8 installation guidelines, 18 network configuration, 31 100BASE-FX media specific.
INDEX 48 chassis, internal components, 3 Class I and Class II repeaters, 40 Class I repeater collision domains, 41 coding schemes, media specifications, 40 Col LED, operating conditions, 6 collision d.
INDEX 49 Expansion Slot Stat operating conditions, 7 verifying installation, 27 Management Mstr verifying installation, 27 Management Stat operating conditions, 7 verifying installation, 27 Media Adap.
INDEX 50 removing filler panels, 22 hub rack installations, 21 table or shelf installations, 21 mounting brackets, 21 repeater delay values, 46 repeater rules for Class I repeaters, 40 requirements fi.
51 Intel customer support Internet FTP and World Wide Web Download files or other information from Intel’s World Wide Web site or by anonymous FTP. CompuServe* Intel Forum. Must be a CompuServe subscriber. Dial in by modem (7-E- 1, up to 28.8Kbps). Intel BBS Connect to Intel’s bulletin board service.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Intel 100BASE-TX è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Intel 100BASE-TX - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Intel 100BASE-TX imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Intel 100BASE-TX ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Intel 100BASE-TX, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Intel 100BASE-TX.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Intel 100BASE-TX. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Intel 100BASE-TX insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
