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4-2

C

HAPTER

4: P

ERFORMING

T

ROUBLESHOOTING

AND

D

IAGNOSTIC

T

ESTS

The Group 2 test (for the 3C590-COMBO adapter only,

not

the

3C590-TPO adapter) checks the adapter’s ability to transmit
and receive data via the internal transceiver.

The Group 3 test (the Echo Exchange Test) tests the adapter’s
ability to transmit and receive data while on the network.

If the adapter passes all three tests successfully, hardware
failure is ruled out. If a problem still remains, look at cabling,
software, and other issues that affect functionality on the
network.

Starting the Diagnostic Program

To use the 3C59X

EtherDisk

diskette Configuration and

Diagnostic Program, follow these steps:

1

In the main menu, select Configuration/Diagnostic/
Troubleshooting and press [Enter].

Refer to Chapter 3 for instructions for accessing the main menu.

2

When the Configuration and Diagnostic screen appears,
select Configuration and Diagnostic Program, and press
[Enter].

If you are testing multiple adapters, a screen listing all
installed adapters appears. Highlight the adapter you want to
test and press [Enter]. A screen appears, showing the selected
adapter with the Install menu item highlighted.

3

Continue with the instructions given in the next section,
“Running the Group 1 Tests.”

You can also run the tests from the command line. At the
system prompt, type:

3C59XCFG

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Содержание EtherLink 3C590

Страница 1: ... ETHERLINK III PARALLEL TASKING PCI BUS MASTER NETWORK ADAPTERS USER GUIDE Members of the 3Com EtherLink III family of adapters Part No 09 0597 001 Published April 1995 ...

Страница 2: ...re is subject to restrictions set forth in subparagraph a through d of the Commercial Computer Software Restricted Rights Clause at 48 C F R 52 227 19 and the limitations set forth in 3Com s standard commercial agreement for the software Unpublished rights reserved under the copyright laws of the United States The software described in this documentation is furnished under a license agreement incl...

Страница 3: ...vice and support take the time to complete the product registration card Any defective 3Com adapter will be repaired or replaced at 3Com s option for as long as the adapter resides in its original IBM Personal Computer Personal System 2 or compatible computer driver software is covered by the standard 90 day limited software warranty ...

Страница 4: ... 3436 ZZ Nieuwegein The Netherlands France Israel 3Com France Marketing Department ZA de Courtaboeuf 25 Ave de la Baltique B P 609 91945 Les Ulis Cedex France Germany Austria Switzerland 3Com GmbH Marketing Department Gustav Heinemann Ring 123 D 81739 Muenchen Munich West Germany Italy Greece Spain Portugal Malta 3Com Mediterraneo Srl Marketing Department Via Michelangelo Buonarroti 1 20093 Cologn...

Страница 5: ...thernet Cable 2 3 Connecting to Twisted pair Cable 2 4 Connecting to an External Transceiver 2 5 Using Auto Select Media Type 2 6 3 INSTALLING THE NETWORK DRIVERS Accessing DOS 3 2 Installing NetWare Drivers 3 2 Finding the Adapter s Port Address 3 3 One Adapter in a Client 3 3 AutoLink Requirements 3 4 Fast Installation 3 4 Detailed Installation 3 5 Multiple Adapters in a Client 3 8 One Adapter i...

Страница 6: ...g the Diagnostic Program 4 2 Running the Group 1 Tests 4 3 Running the Group 2 Test 4 4 Assembling a Loopback Plug 4 4 Starting the Group 2 Test 4 4 Running the Group 3 Test 4 5 Setting Up an Echo Server 4 5 Starting the Group 3 Test 4 6 Getting Help If a Test Fails 4 7 Changing the Test Setup 4 9 Miscellaneous Checks 4 10 Link Beat LED 4 10 A SOFTWARE OPTION SETTINGS Changing Software Option Sett...

Страница 7: ...etin Board Service C 1 World Wide Web Site C 2 Ask3Com on CompuServe C 2 3ComFacts Automated Fax Service C 2 Support from Your Network Supplier C 4 Returning Products for Repair C 5 GLOSSARY INDEX LIMITED WARRANTY FCC CLASS B CERTIFICATION VDE CLASS B COMPLIANCE ...

Страница 8: ...cting Thin Ethernet Cable 2 4 2 3 Slide Latch 2 5 2 4 Connecting the AUI Cable 2 5 3 1 AutoLink Information Screen 3 7 3 2 Main Menu 3 7 4 1 Assembling a Loopback Plug 4 4 A 1 Main Menu A 3 A 2 Main Window with Multiple Adapters A 4 A 3 Configuration Dialog Box A 5 B 1 RJ 45 Connector Pin Assignments B 2 ...

Страница 9: ...ii 1 1 3C590 PCI Adapter Cable and Connector Specifications 1 2 2 1 Connectors for 3C590 PCI Adapters 2 3 3 1 Accessing DOS from Other Operating Systems 3 2 4 1 Diagnostic Programs 4 6 A 1 Option Settings A 2 B 1 AUI Connector Pin Assignments B 2 ...

Страница 10: ...adapters How to Use This Guide The following table shows where to find specific information in this guide If you are looking for Turn to Information about the 3Com PCI bus master network adapters and an introduction to PCI technology Chapter 1 Instructions for installing the adapter Chapter 2 Procedures for connecting the adapter to the network Chapter 2 Instructions for installing network drivers...

Страница 11: ...n specific keys are referred to in the text they are called out by their labels such as the Return key or the Escape key or they may be shown as Return or Esc If two or more keys are to be pressed simultaneously the keys are linked with a plus sign for example Press Ctrl Alt Del Table 2 Notice Icons Icon Type Description Information Note Information notes call attention to important features or in...

Страница 12: ...e of media supported on the backplates as shown in Figure 1 1 The name 3C590 PCI adapter is used in this guide to refer to both EtherLink III 10 Mbps PCI adapters unless otherwise specified The bus master driver supplied with this adapter is compatible with the Fast EtherLink 10 100BASE T PCI adapter The bus master drivers shipped on the 3C59X EtherDisk diskette are compatible with the 3C59X famil...

Страница 13: ...r slots Check the documentation provided with the PCI computer you are using to determine which PCI slots are bus master slots 10BASE T AUI coax 10BASE T RJ 45 connector BNC connector AUI connector LED RJ 45 connector LED Table 1 1 3C590 PCI Adapter Cable and Connector Specifications Adapter Type Cable Specification Connector Types 3C590 COMBO 10BASE T Thin coax 10BASE2 Thick coax 10BASE5 RJ 45 BN...

Страница 14: ...echnology The PCI local bus is a high performance bus that provides a processor independent data path between the CPU in a PC and high speed peripherals This interconnect mechanism is designed specifically to accommodate multiple high performance peripheral devices that support networking and disk subsystems graphics full motion video and multimedia The PCI specification defines two types of PCI d...

Страница 15: ... on board memory and provides installation information to the computer at start up Shared slots The PCI specification calls for shared slots which denotes the shared expansion backplate slot This shared backplate slot provides access to one of two types of adapters a PCI adapter and an ISA adapter for example or a PCI adapter and an EISA adapter Only one adapter at a time can be installed in a sha...

Страница 16: ...tings as explained in Appendix A Before You Begin CAUTION Each adapter is packed in a clear plastic antistatic container to protect it during shipment To avoid damaging any static sensitive components after removal from the container be sure to reduce any static electricity on your person One way to do this is to touch the metal chassis of your computer You can maintain grounding by wearing a wris...

Страница 17: ...he screw Be sure to insert the 3C590 PCI adapter only in a PCI bus connector As shown in Figure 2 1 PCI bus connectors are the short connectors both ISA and EISA connectors are longer Although the adapter can physically fit into a larger bus connector it will only function when installed in a PCI connector Figure 2 1 PCI and EISA Bus Connectors in a PCI Computer If you are installing a PCI adapter...

Страница 18: ...e 3C590 PCI adapters Table 2 1 lists the types of network cable connectors that are found on 3C590 PCI adapters Connecting to the On board Transceiver Each 3C590 PCI adapter is equipped with an on board transceiver to allow easy connection to the network Connecting to Thin Ethernet Cable The 3C590 COMBO adapter is factory set to use the on board transceiver as the default with thin Ethernet cable ...

Страница 19: ... an on board transceiver for connection to twisted pair cable The 3C590 TPO adapter is factory set to use the on board transceiver as the default 1 Make sure that the connector on your cable is wired appropriately for standard 10BASE T adapter cards Refer to Appendix B for RJ 45 connector pin assignments 2 Align the RJ 45 plug on the end of the twisted pair cable with the notch on the adapter s co...

Страница 20: ...wisted pair cabling Follow these steps to connect to an external transceiver 1 Locate the adapter s AUI connector and move the slide latch to the open position as shown in Figure 2 3 Figure 2 3 Slide Latch 2 Connect the AUI cable or transceiver to the AUI connector on the adapter as shown in Figure 2 4 Closed AUI connector Slide latch Open AUI cable BNC connector AUI connector RJ 45 connector ...

Страница 21: ...for Windows for Workgroups and Windows NT The NDIS drivers function with 486 and Pentium processors If you have one of these drivers installed as soon as you connect a network cable to the system the Auto Select Media Type function will detect the type of cable making the connection and automatically select that media type If you change the type of network cable connected to the adapter you must r...

Страница 22: ...Using Auto Select Media Type 2 7 ...

Страница 23: ...2 8 CHAPTER 2 INSTALLING THE PCI ADAPTER ...

Страница 24: ...en 3Com shipped the adapter It also contains other important information concerning the 3C590 PCI adapter The drivers on the 3C59X EtherDisk diskette 3C59X drivers are compatible with the following bus master adapters Fast EtherLink PCI 10 100BASE T 3C595 adapters and EtherLink III PCI 10 Mbps adapters 3C590 The 3C59X drivers are not backward compatible with the 3C5X9 family of EtherLink III adapt...

Страница 25: ...access DOS from various operating systems Installing NetWare Drivers This section describes how to install NetWare drivers in four different networking situations which are listed below One adapter in a client Multiple adapters in a client One adapter in a server Multiple adapters in a server Table 3 1 Accessing DOS from Other Operating Systems Operating System Procedure OS 2 1 Boot your computer ...

Страница 26: ... and Diagnostic Program and press Enter A screen appears listing all installed adapters 3 Select the adapter whose port address you want 4 Select the View item in the menu bar Press Enter A screen appears with the port address shown as a four digit hexadecimal number One Adapter in a Client To install the driver for a single adapter in a NetWare DOS ODI environment follow the instructions in this ...

Страница 27: ...meet the following requirements Use the Novell NetWare 2 x 3 1x or 4 x network operating system Have only one 3C590 PCI adapter installed Be intended for use as a NetWare DOS ODI client If this does not describe your network environment refer to the appropriate section later in this chapter If you have a boot PROM or want to optimize driver performance refer to Appendix A Software Option Settings ...

Страница 28: ...ake that drive the active drive For example if the diskette drive is A type the following command A Enter 3 At the prompt type INSTALL Enter Alternatively at the prompt type AUTOLINK Enter If a caution message appears indicating a possible problem with your PCI BIOS follow the displayed instructions which provide a workaround patch If the patch does not solve the problem contact your computer vend...

Страница 29: ...s a log of all the events that occurred during the AutoLink installation and configuration process a To display the file type type autolink log more b To print the file type print autolink log 7 When the auto installation process is finished remove the diskette and reboot the computer When you do this a DOS ODI client starts To ensure that your computer is configured with the latest client softwar...

Страница 30: ... in the main menu for information on AutoLink server support To manually set up your adapter or for information drivers for other NOSs use the options under Standard Installation and Configuration in the main menu EtherDisk for 3C59X Fast EtherLink EtherLink III Bus Master Adapters v X X C Copyright 1995 3Com Corporation All Rights Reserved ESC Cancel F1 Help M A I N M E N U This option will insta...

Страница 31: ...driver with multiple adapters already installed and you have not updated the NET CFG file the message shown below appears NetWare DOS ODI client Multiple EtherLink III Adapters found Use NET CFG to specify I O Port Specify which adapter you want the driver to recognize by adding the I O port address to the NET CFG file using the PORT XXXX parameter One Adapter in a Server If you are running NetWar...

Страница 32: ...ectly 3 When this has been done bind the protocol to the driver as usual When running the 3C59X LAN driver with NetWare 3 11 you must update the MONITOR NLM file that accompanied NetWare 3 11 with the MONITOR NLM file from Novell For the latest NLMs contact Novell Driver Installation with NetWare 3 12 To install the 4 x server driver while running NetWare 3 12 follow these steps 1 Copy the content...

Страница 33: ... the boot partition of the server s hard disk 2 When you start the server enter the following commands load C LSLENH NLM Enter load C 3C59X LAN PORT XXXX NAME X Enter load C 3C59X LAN PORT XXXX NAME Y Enter where XXXX is the adapter s port address and NAME X and Y are names that you assign to help distinguish the multiple adapters To determine the port address refer to the section Finding the Adap...

Страница 34: ...hapter If the load sequence above is not followed the system will not operate correctly Make sure that the PORT XXXX parameter is completed for all adapters 3 When this has been done bind the protocol to the user assigned names Non NetWare Environments To install drivers in a non NetWare environment follow these steps 1 Access the main menu as described in the section Detailed Installation earlier...

Страница 35: ...vide network management capabilities for adapters and PCs are available with Transcend PC Link SmartAgent software or on 3Com s bulletin board service For information on 3Com s BBS refer to Appendix C Technical Support NetWare DOS ODI client driver agents can be installed after ODI drivers are loaded NDIS DOS and OS 2 driver agents can be installed after NDIS drivers are installed NetWare 3 x serv...

Страница 36: ...ivers make sure the Transcend PC Link SmartAgent driver agents are fully installed and configured This includes entry of user definable information in NET CFG files for NetWare PCs and PROTOCOL INI files for NDIS based PCs For more information on WorkGroup Manager software contact your authorized 3Com representative Desktop Management Interface 3Com s support of the Desktop Management Interface DM...

Страница 37: ...3 14 CHAPTER 3 INSTALLING THE NETWORK DRIVERS ...

Страница 38: ...s to meet specific situations Always run the diagnostic tests with no device drivers or memory managers installed Whenever you plan to run the diagnostic tests you must first boot your computer from a DOS diskette containing no device drivers or you must exit to DOS if you have an operating system other than DOS Refer to the section Accessing DOS in Chapter 3 If you are running under DOS 6 x or hi...

Страница 39: ...c Program To use the 3C59X EtherDisk diskette Configuration and Diagnostic Program follow these steps 1 In the main menu select Configuration Diagnostic Troubleshooting and press Enter Refer to Chapter 3 for instructions for accessing the main menu 2 When the Configuration and Diagnostic screen appears select Configuration and Diagnostic Program and press Enter If you are testing multiple adapters...

Страница 40: ...nd press Enter To run the Group 1 tests follow these steps 1 Under the Test pull down menu select Run Tests Press Enter The Run Tests dialog box appears with the Start command button highlighted 2 Press Enter to start the tests Group 1 tests run ten times default setting unless you specify otherwise The test results are displayed on the screen in the Results column To run the tests continuously go...

Страница 41: ...an cause intermittent failures Assembling a Loopback Plug If you do not have a loopback plug you may be able to get one from your authorized network supplier or you can make your own To assemble the loopback plug connect two 50 ohm network cable terminators to a T connector as shown in Figure 4 1 You can purchase the terminators from your network supplier 3Com part number 3C535 Figure 4 1 Assembli...

Страница 42: ...er set up as an echo server The echo server receives packets from the adapter being tested and echoes them back to the adapter The second computer must be equipped with a 3Com adapter The diagnostic program that comes with the adapter supports the 3C590 echo server diagnostic program Setting Up an Echo Server If your echo server contains a 3C590 PCI adapter select the Echo Server menu item under t...

Страница 43: ...ow set up as an echo server Starting the Group 3 Test To run the Group 3 test on a 3C590 PCI adapter follow these steps 1 Start the Configuration and Diagnostic Program This program must be on the computer containing the adapter you want to test 2 Select Test Setup from the Test menu 3 Enable the Group 3 test Highlight OK and press Enter 4 Go to the Run Tests dialog box to start the tests Table 4 ...

Страница 44: ...ting or removing the adapter from the computer 1 Make sure the board is seated correctly in the slot Check the adapter installation by reviewing the installation instructions in Chapter 2 2 Inspect all cables and connections If you are using thin Ethernet cable make sure that you have a T connector attached to the adapter and all other adapters on the network Make sure that the thin Ethernet segme...

Страница 45: ... the Group 3 test make sure that the adapter is connected to a properly cabled and inactive network and that an echo server is set up on the network 7 Make sure that the settings for the adapter s options are not the same settings used in the computer or on any other adapter boards installed in the computer If you need help select Configuration Diagnostic Troubleshooting on the 3C59X EtherDisk dis...

Страница 46: ... autolink log more b To print the file type print autolink log Changing the Test Setup To change the test parameters follow these steps 1 Choose Test Setup from the Test menu in the main window of the Configuration and Diagnostic Program or use the Test Setup command button in the Run Tests dialog box 2 Press Tab to highlight any of the fields within the Test Setup dialog box 3 To change a setting...

Страница 47: ...fic hardware problems such as broken traces or loose broken solder connections If you have installed the adapter correctly and you still experience problems check the software Make sure that you have installed the correct drivers for the network operating system you are running refer to Chapter 3 Installing the Network Drivers If any problem persists refer to Appendix C Technical Support Link Beat...

Страница 48: ...BASE T specifications and then check the LED The meaning of LED activity is given below If the LED is on the link beat is working If the LED is off the link beat has not been established or there is a problem with the connection between the adapter and the hub If the LED is blinking the cable polarity is reversed ...

Страница 49: ...4 12 CHAPTER 4 PERFORMING TROUBLESHOOTING AND DIAGNOSTIC TESTS ...

Страница 50: ... To load the drivers you must use the AutoLink or Network Drivers options on the main menu of the Configuration and Diagnostic Program on the 3C59X EtherDisk diskette Refer to Chapter3 Changing Software Option Settings You should change the default settings of a 3C590 PCI adapter only if a conflict with another device or adapter exists For information on settings of other standard devices select t...

Страница 51: ...ces you may choose the Maximize Network Performance option 2 Full duplex operation is possible only when used in an environment where the hub or a switch supports it Do not enable the Full Duplex option unless your hub is set for full duplex To change software option settings follow these steps 1 Make sure that you have booted the computer under DOS version 6 x or later and that your computer is c...

Страница 52: ...ormation screen appears 5 Read the screen and press Enter 6 When the main menu screen appears as shown in Figure A 1 select Configuration Diagnostic Troubleshooting Figure A 1 Main Menu ESC Cancel F1 Help M A I N M E N U Program information for configuring testing troubleshooting adapters ENTER Execute Function Scroll F1 Help ESC Cancel Auto Installation with Configuration AutoLink NetWare DOS ODI...

Страница 53: ...ow keys to highlight the parameter you want to change Figure A 3 is an example of the adapter configuration dialog box showing both the automatically set configuration values which you cannot change I O Port Address and Interrupt Request Level and the default software option settings which you can change Initial Adapter Selection Select Quit Select the adapter to be configured and or tested ENTER ...

Страница 54: ...ss Enter You must highlight OK and press Enter to save the new settings to the adapter ENTER Auto Configure Automatically Configures the Adapter Alt Highlighted Key Execute Function TAB Next Field SHIFT TAB Previous Field F1 Help ESC Cancel EtherDisk for 3C59X Fast EtherLink EtherLink III Bus Master Adapters v X X Install Quit View Select F1 Help Test Cancel OK Auto Configure Modify File Options A...

Страница 55: ...he configuration settings to a file Select Save under File Options in the Adapter Configuration dialog box For example type D CONFIG 3C59X SET where x represents the last digit of the adapter number This saves the settings to the default file 3C59X SET in the CONFIG directory in drive D Refer to the on line help using F1 for more information ...

Страница 56: ...s baseband CSMA CD local area network 3C590 COMBO IEEE 802 3i 10BASE T and Ethernet IEEE 802 3 industry standard for a 10 Mbps CSMA CD local area network Physical Dimensions Length 173 228 mm 6 82 inches Height 99 695 mm 3 925 inches Environmental Operating Range Operating temperature 0 to 70 C 32 to 158 F Humidity 10 to 90 noncondensing Power Requirements Operating voltage 5 V 12 V 3C590 COMBO 12...

Страница 57: ...able B 1 lists the pin assignments for the AUI attachment unit interface connector R D R D 1 2 3 4 5 12345678 T D T D 6 7 8 Table B 1 AUI Connector Pin Assignments Pin Function Pin Function 1 Collision shield 9 Collision 2 Collision 10 Transmit 3 Transmit 11 Transmit shield 4 Receive shield 12 Receive 5 Receive 13 12 volts 6 Power return 14 Voltage shield 7 Not used 15 Not used 8 Not used ...

Страница 58: ... authority to operate this equipment Examples of supported cable types are shown below For unshielded twisted pair UTP connections 100 ohm Level 3 LAN and high speed data cable for example Anixter CM 00424BAG 3 or equivalent Level 4 extended distance LAN cable for example Anixter CM 00424BAG 4 or equivalent Level 5 data grade media cable for example AT T type 2061 1061 or equivalent For thin coax ...

Страница 59: ...l as technical articles This service is available via modem seven days a week 24 hours a day To reach the service set your modem to 8 data bits no parity and 1 stop bit Call the telephone number nearest you Country Baud Rate Telephone Number Australia up to 14400 baud 61 2 955 2073 France up to 14400 baud 33 1 69 86 69 54 Germany up to 9600 baud up to 9600 baud 49 89 627 32 188 49 89 627 32 189 Ho...

Страница 60: ...service containing patches software drivers and technical articles about all 3Com products as well as an interactive forum for technical questions To use Ask3Com you need a CompuServe account To use Ask3Com 1 Log on to CompuServe 2 Enter go threecom 3 Press Return to see the Ask3Com main menu 3ComFacts Automated Fax Service 3Com Corporation s interactive fax service 3ComFacts provides data sheets ...

Страница 61: ...are products Document 8888 provides you with an index of system product documents Call 3ComFacts using your touch tone telephone International access numbers are Local access numbers are available within the following countries Country Fax Number Hong Kong 852 537 5610 U K 44 144 227 8279 U S 1 408 727 7021 Country Fax Number Country Fax Number Australia 800 123853 Italy 1678 99085 Denmark 800 173...

Страница 62: ...are including revision levels Details about recent configuration changes if applicable If you are outside the U S and Canada contact your local 3Com sales office to find your authorized service provider Country Telephone Number Country Telephone Number Australia Sydney 61 2 959 3020 Mexico 525 531 0591 Melbourne 61 3 653 9515 Netherlands 31 3 402 55033 Belgium 32 2 7164880 Singapore 65 538 9368 Br...

Страница 63: ...uthorization RMA number A product sent to 3Com without an RMA number will be returned to the sender unopened at the sender s expense To obtain an RMA number call or fax Country Telephone Number Fax Number U S and Canada 800 876 3266 option 2 408 764 7120 Europe 44 1442 278000 44 1442 236824 Outside Europe U S and Canada 1 408 492 1790 1 408 764 7290 ...

Страница 64: ...ating organization that publishes electronics standards for use in the United States AUI Attachment Unit Interface Connector Also called the DIX DEC Intel Xerox connector This is a female 15 pin D connector used with an external transceiver AUI cable Also known as the transceiver cable The AUI cable is used to connect an external transceiver to a computing device AutoLink Auto installation and aut...

Страница 65: ... which printer circuit boards are inserted Bus A collection of signal lines The definition of a bus specifies the purpose of each line and the timing relationship of the electrical signals Bus master adapter An adapter that contains its own processor which allows the adapter to operate independently of the computer s main processor Coaxial cable An electrical wire consisting of two primary electri...

Страница 66: ...ms resident in each PC as device drivers to allow management of the PC by SoftHub EISA Extended Industry Standard Architecture The EISA 32 bit extended AT personal computer bus architecture is downward compatible with the 16 bit ISA architecture EMM386 Expanded Memory Manager A dual purpose memory manager that comes with MS DOS It provides access to the upper memory area which enables you to free ...

Страница 67: ...ces that let a DOS or OS 2 system support network adapters This architecture provides a standardized way to write drivers for network adapters NetWare A series of network operating systems and related products made by Novell Inc Network adapter A circuit board module that goes inside each workstation and server on the network It allows the device to listen and talk to other stations and nodes on t...

Страница 68: ...s 32 bits of data at up to 132 MBps Server In a client server computing environment a device that provides access to network services such as printers or applications SmartAgent 3Com network management software capable of supporting numerous network management and communications protocols It reduces the computational load on the network management station and alleviates management oriented traffic...

Страница 69: ...e to a network cable and functions as both a transmitter and a receiver Twisted pair Wiring similar to that found in the telephone system consisting of two insulated wires loosely twisted around each other to help cancel out induced noise in balanced circuits ...

Страница 70: ...B 1 troubleshooting 4 1 unpacking 2 1 Ask3Com C 2 attachment unit interface AUI connector 1 2 2 5 2 6 pin assignments B 2 Auto Select Media Type 1 3 2 6 A 2 AUTOEXEC BAT file 3 4 4 1 AutoLink auto installation software 1 3 3 1 3 4 controlling 3 5 fast installation 3 4 requirements 3 4 using 3 4 AUTOLINK CFG file 3 5 AUTOLINK LOG file 3 6 4 9 B backplates 1 2 BNC connector 1 2 2 3 boot PROM 3 4 Boo...

Страница 71: ...Parallel Tasking PCI adapter i 1 1 Ethernet Core Loopback Test 4 3 expansion slot 2 2 external transceiver 2 5 F Fast EtherLink 10 100 PCI and EISA adapters 1 1 fax service See 3ComFacts fiber optic cable 2 5 FIFO Loopback Test 4 3 Full Duplex option A 2 G Group 1 tests 4 1 list of 4 3 running 4 3 Group 2 test 4 2 4 4 Network Loopback Test 4 4 setting up 4 4 starting 4 5 Group 3 test Echo Exchange...

Страница 72: ...I bus master 1 1 PCI technology 1 3 Peripheral Component Interconnect PCI adapter 1 1 physical dimensions B 1 pin assignments B 2 port address 3 3 power requirements B 1 PROTOCOL INI file 3 12 3 13 Q QINSTALL SERVER directory 3 6 R Register Access Test 4 3 returning products for repair C 5 reversed polarity 4 11 RJ 45 connector 1 2 2 4 pin assignments B 2 S shared interrupts 3 3 slide latch 2 5 Sm...

Страница 73: ...4 INDEX U UNIX driver 3 12 unshielded twisted pair connections B 3 W Windows for Workgroups 3 12 Windows NT 3 12 WorkGroup Manager for Windows 3 13 Z Zoom 4 7 ...

Страница 74: ...r assumes responsibility for the selection of the appropriate applications program and associated reference materials 3Com makes no warranty that its software products will work in combination with any hardware or applications software products provided by third parties that the operation of the software products will be uninterrupted or error free or that all defects in the software products will...

Страница 75: ... ATTEMPTS TO REPAIR OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR BY ACCIDENT FIRE LIGHTNING OR OTHER HAZARD LIMITATION OF LIABILITY IN NO EVENT WHETHER BASED IN CONTRACT OR TORT INCLUDING NEGLIGENCE SHALL 3COM BE LIABLE FOR INCIDENTAL CONSEQUENTIAL INDIRECT SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR FOR LOSS OF REVENUE LOSS OF BUSINESS OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CON...

Страница 76: ...orient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from the one which the receiver is connected to Consult the dealer or an experienced radio TV technician for help The user may find the following booklet prepared by the Federal Communications Commission helpful The Interference Handbook Th...

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