3Com NETBuilder II Owner's Manual
Contents
1. The account administrator for your country will assist you with your repair needs Preparing Your Equipment for Shipment To ensure that your equipment arrives without damage and can be traced through the repair process please prepare it in the following manner a Attach a reference number to equipment that is under warranty Include a purchase order for the repair work if the equipment is not under warranty C 6 Technical Support Additional Technical Support Services a Make sure that the packing list you include with your equipment has the following information on it Reference number you assigned to the equipment for equipment under warranty Model item or part number Unitor board serial number for warranty repairs only Proof of purchase for end customer warranty repairs Fault diagnosis attached to each unit a Pack equipment carefully Enclose all network adapters and units that have exposed boards in Faraday cage type shielding material to prevent electrostatic damage Send equipment to European Repair 3Com Europe Ltd ISOLAN House Brindley Way London Road Hemel Hempstead Hertfordshire HP39 XJ England If you are sending equipment from outside England please contact European Repair Services to determine your nearest logistics centre Australia New Zealand Asia Japan Central America and South America 3Com s warranty varies by product For warranty information on y2. push the flipper ejector closed Push board into slot Check that the connector LED panel of the newly inserted module is flush with the NETBuilder II chassis To verify that the board is seated correctly check that it is aligned with the connector LED panel of an installed module Hand tighten the captive screws Do not use a screwdriver A solid connection of the connector LED panel to the chassis is required for proper operation Do not use the screws to force the board into place Installation 1 5 Installing the HSSI Module Cabling the HSSI Module for Network Connection A SCSI type cable connects the HSSI Module DTE connector to a Data Service Unit DSU Table 1 1 describes the connectors Table 1 2 describes the pin assignments 3Com recommends using minimum lengths of this cable especially if you plan to use these serial lines at high speeds The maximum cable length allowed is 50 feet To connect the HSSI module to the network insert a SCSI type cable into the female connector in the rear of the HSSI module Table 1 1 Connectors Connector Description Plug connector type Receptacle type 2 row 50 pin shielded tab connectors AMP plug part number 749111 4 or equivalent AMP shell part number 749193 2 or equivalent 2 row 50 pin receptacle header with rails and latch blocks AMP part numb
3. 3Com for repair without an RMA number displayed clearly on the outside of the box it will be returned to you unopened a Prepay the shipping costs to 3Com Ship your products to 3Com Corporation 5400 Bayfront Plaza RMA Receiving Attention RMA your RMA number Santa Clara CA 95052 8145 3Com returns products by air freight priority 2 and pays all return shipping costs Repair Timeframes Repairs may take up to thirty 30 working days in house A 24 hour turnaround option which includes priority 1 return air freight is available for an additional expedite charge Additional 3Com Support Services If you want to supplement your network supplier s service 3Com offers a variety of technical support services including a Network Integration Service a set of professional services that can assist you with large scale complex projects Annual on site support contracts Annual hardware maintenance contracts a Technical support service by telephone Technical Support C 5 Additional Technical Support Services Factory repair service Spare parts Software update service You can receive information about these programs and services from your authorized 3Com network supplier or directly from 3Com by calling 1 800 NET 3Com or the 3Com sales office nearest you Europe and Africa Authorized 3Com network suppliers often are equipped to provide repair service Contact your network supplier first for assistan
4. Automated Fax Service 3Com s interactive fax service 3ComFacts provides technical information on 3Com products 24 hours a day seven days a week To access this service dial 1 408 727 7021 from anywhere in the world using your touch tone telephone In Europe call 44 442 278279 Free local access is available within the following countries by using the numbers listed France 05 90 81 58 Germany 0130 81 80 63 Italy 1678 99085 Netherlands 06 0228049 Sweden 020 792954 U K 0800 626403 Within this service you may choose to access CardFacts containing adapter information or NetFacts containing network system product information a CardFacts provides adapter installation diagrams configuration drawings troubleshooting instruction and technical articles Document 9999 provides you with an index of adapter documents m NetFacts provides data sheets and technical articles on 3Com s hub bridge router terminal server and software products Document 8888 provides you with an index of system product documents On line Technical Services You can access the following on line services for software updates drivers technical tips and product information 3Com Product Information Service Ask3Com is a CompuServes based service containing patches and drivers technical articles about all 3Com products and an interactive forum for technical questions To use Ask3Com you need a CompuServe account Log in to CompuSer
5. Components Before Installing the HSSI Module Before you install the HSSI module into the NETBuilder II base system follow these steps 1 Observe appropriate ESD precautions Electrostatic discharge ESD can damage circuit board components Failures resulting from ESD may not be covered under your warranty To prevent this follow these handling procedures us Keep the HSSI module in its antistatic shielded bag until you are ready to install it a Do not touch pins leads or solder connections on the board Handle the board by the edges only a Store or ship the HSSI module in static protective packaging Observe proper grounding techniques when handling the HSSI module Use a foot strap and grounded mat or wear a grounded static discharge wrist strap 2 Inspect the HSSI module for shipping damage If you find any damage contact the shipping company to file a report If the assembly must be returned to your network supplier ship it in its original shipping carton If the original carton was damaged in shipment repack the system in a carton that provides equivalent protection 1 2 Installation Before Installing the HSSI Module Verify that you have received all the contents When you purchase the HSSI module you receive the following HSSI module a NETBuilder II HSSI Module Installation Guide If an item is missing from an undamaged carton contact your network supplier to secure a replacement W
6. HSSI module CEC slot gt o Co OC EO 6000 ooo O O a Jo ea 0 K o eo O slots 212 o ren 660m e oc Ogle sc Oooo 2 oC 660 CO O Loosen captive screws with screwdriver if necessary Push flipper ejector s open Slide blanking plate out of rear panel CAUTION Only remove the blanking plate from an I O slot that will house an I O module All unused I O slots require blanking plate covers to maintain proper cooling of the unit and regulatory compliance Failure to cover open slots can result in overheating of the NETBuilder II base system and voiding of the warranty 1 4 Installation Installing the HSSI Module Insert the HSSI module into an uncovered I O slot Make sure the flipper ejector s are in an open position Flipper Flipper open closed With the connector end toward the backplane and the board facing up check that the labels on the connector LED panel are right side up grasp the left and right sides of the panel and fit the board into the I O slot opening along the guide rails Lock the board in the slot For the dual wide NETBuilder II chassis use your thumbs to push the board all the way into the slot As you slide the board into the slot the flipper ejector engages itself For single wide NETBuilder II chassis
7. NETBuilder Family Bridge Router Guide NOTE Using the MONitor command halts the normal operation of the bridge router software 1 To access the monitor utility enter the following command at the network manager prompt mon The following message appears WARNING Monitor mode halts normal operation Confirm Y N 2 Type Y The following message appears 3Com Corporation NETBuilder II Monitor The angle bracket gt prompt indicates you are in monitor mode 3 Enter the following command to display the System Information menu si The following is displayed System Information 1 Display System Information Summary 2 Display Repair Data 3 Display I O Module Information Enter display number or press Q to quit 4 Type 3 to access the MAC address of the HSSI module The Assigned MAC addresses field lists the MAC address that has been assigned to the interface on the I O module This display is a few screens long Once the first screen is displayed press the Return key to display the next screen You may press the ESC key to exit this display B 2 Displaying the MAC Address 5 When you are finished with the display of I O module information type G This will exit the monitor mode and return you to the bridge router software interface Appendix C Technical Support 3Com provides easy access to technical support information through a variety of services This appendix describes these services
8. NETBuilder II HSSI Module Installation Guide A member of the NETBuilder family THE PRESIDENT S ENVIRON MENT AND CONSERVATION CH ALLEN GE AWARD 1992 For 3Com User Group Information 1 800 NET 3Com or your local 3Com office Manual Part No 09 0489 000 Published January 1994 Printed in the U S A 3Com Corporation 5400 Bayfront Plaza Santa Clara California 95052 8145 3Com Corporation 1994 All rights reserved No part of this manual may be reproduced in any form or by any means or used to make any derivative work such as translation transformation or adaptation without permission from 3Com Corporation 3Com Corporation reserves the right to revise this publication and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change 3Com Corporation provides this manual without warranty of any kind either implied or expressed including but not limited to the implied warranties of merchantability and fitness for a particular purpose 3Com may make improvements or changes in the product s and or the program s described in this manual at any time United States Government Legends If you are a government agency then this documentation and the software described herein are provided to you subject to the following restricted rights For units of the Department of Defense Restricted Rights Legend Use duplication
9. PHY_CONTROLLER Self Tests passed slot 3 MAC CONTROLLER Self Tests passed slot 4 FDDI Started MAC 4 PHY 3 A Wed Dec 31 16 00 06 1969 Path 4 AVAILABL A Wed Dec 31 16 00 06 1969 Path 1 AVAILABL A Wed Dec 31 16 00 06 1969 Path 2 AVAILABL Wed Dec 31 16 00 06 1969 Path 2 UP Fri Sep 10 16 50 06 1993 System Initialized and Running Fri Sep 10 16 50 06 1993 Path 4 UP Fri Sep 10 16 50 17 1993 Path 1 UP Fri Sep 10 16 50 35 1993 Port 2 Forwarding State Fri Sep 10 16 50 36 1993 Port 4 Forwarding State Fri Sep 10 16 50 56 1993 Port 1 Forwarding State If you receive a different message refer to Chapter 2 Troubleshooting and Maintenance for the appropriate action to take Hotswap When you hotswap an HSSI module in a running system the following is displayed HSSI Interface Self Tests passed slot 1 Wed Dec 31 16 00 06 1969 Path 1 AVAILABLI Gl Fri Sep 10 16 50 17 1993 Path 1 UP Chapter 2 Troubleshooting and Maintenance This chapter describes how to troubleshoot and maintain the HSSI module If you are unable to resolve a problem with your HSSI module you will need to contact a customer service representative Refer to Appendix C Technical Support for information about who to contact in your area Troubleshooting Startup Problems The following symptom indicates a self test failure at startup For complete information on configurable
10. an safely remove and install a new one without turning off or rebooting the NETBuilder base system To perform the following procedure you may need a small flathead screwdriver To replace the module follow these steps to remove the HSSI module 1 Disconnect any network cabling from the HSSI module and remove the cable from the strain relief bracket You do not need to remove the bracket Unscrew the two captive screws that anchor the board in the slot until they disengage from the chassis Do not remove the screws from the I O panel Use a screwdriver to loosen the screws if necessary NOTE If you have a dual wide NETBuilder II chassis skip step 3 Release the ejector handles on both sides of the board by pushing the handles apart The board will disengage from the NETBuilder II backplane and partially eject from the slot For the dual wide NETBuilder II chassis use one hand to disengage the flipper ejector by pulling it back and simultaneously use the other hand to pull on the anchoring screw on the opposite side of the I O panel Use both hands to grasp the board and gently pull it from the slot Install the new HSSI module using the procedures outlined in Chapter 1 Installation Appendix A HSSI Module Components This appendix describes the HSSI module components and gives the specifications of the board The following figures show the major components and the connector LED panel Pa Status LED Backpl
11. ane connector to NETBuilder II T y CA LED p AA TX LED T i ii i i Connector ii i i i T LEDs The following table explains the states of the three LEDs Table A 1 LED states LED Normal Color Indicates Behavior TX on green packets forwarding CA on green CSU available STATUS on green normal operation off module disabled yellow self test red fault A 2 HSSI Module Components Connectors Connectors There are 4 connectors on the HSSI module Table A 2 HSSI Module Connectors Location Connector Number of pins Purpose Backplane Connector J1 and J3 48 pin connects module to the core bus J2 8 pin power connector Front LED connector 50 pin SCSI HI 50 pin connects module to panel HSSI interface Specifications The following table lists the physical dimensions of the HSSI module Table A 3 Physical Dimensions Attribute Description Length 8 8in 22 25cm Width 3 9 in 9 9 cm Height 0 6 in 1 5 cm Weight 0 6 Ibs 0 26 kg The following table lists the maximum current consumption of the HSSI module Table A 4 Maximum Current Consumption 5 Volts 12 Volts 2 0 amps 0 4 amps Appendix B Displaying the MAC Address After you have installed the HSSI module use this procedure to display the MAC address This method of accessing the monitor can be done only from the bridge router software To find out about other methods of accessing the monitor utility refer to the
12. ce If your equipment needs repairs that are not available from your network supplier or if you purchased your equipment directly from 3Com you or your network supplier usually will send the equipment to the 3Com Europe repair center in England Equipment Warranties and Repair Services 3Com s warranty varies by product For warranty information on your product refer to your purchase agreement If you are a non contracted end customer refer to the warranty card accompanying the product or contact your authorized 3Com network supplier for assistance 3Com Europe offers a 30 day exchange repair service in house for most products A standard charge is made on all items returned for exchange or repair when the product s warranty has expired whether or not the item is found to be faulty When you send items to 3Com Europe for repair you are responsible for paying all shipping or freight charges 3Com Europe pays all return freight charges 3Com Europe may exchange your equipment for an identical part If you require that your original equipment be repaired rather than exchanged please note this on the documents you send with your equipment Returning Products for Repair Before you return any product for repair contact 3Com s European Repair Services by phone or fax with your purchase order or reference number and include shipping and flight information with the shipping date a Phone 44 44 2 278 125 a Fax 44 44 2 236 824
13. er 749075 5 or equivalent Table 1 2 HSSI Adapter Cable Pinouts Signal Name Mnemonic Pin Number Pin Number Direction side side Signal Ground SG 1 26 Receive Timing RT 2 27 in DCE Available CA 3 28 in Receive Data RD 4 29 in Loopback Request LC 5 30 in Send Timing ST 6 31 in Signal Ground SG 7 32 DTE Available TA 8 33 out Terminal Timing TT 9 34 out Loopback Circuit A LA 10 35 out Send Data SD 11 36 out Loopback CircuitB LB 12 37 out Signal Ground SG 13 38 5 ancillary to 14 18 39 43 out DCE Signal Ground SG 19 44 5 ancillary from 20 24 45 49 in DCE Signal Ground SG 25 50 gt 1 6 Installation Installing the HSSI Module AX CAUTION Connections between 3Com equipment and other equipment and peripherals must be made using shielded cables in order to maintain compliance with FCC and other agency radio frequency emissions limits All interconnection cables should be equipped with shielded connectors The backshells of these connectors must completely surround the cable shield Internal Loopback test An internal loopback test is performed automatically when you insert the HSSI module into the NETBuilder II chassis A successful loopback test is indicated by the following example message 3Com Corporation NETBuilder II power on IPLI 1 0 5 REM 1 0 5 Booting from floppy Decompressing Booting complete HSSI Interface Self Tests passed slot 1
14. firmware parameters refer to the NETBuilder Family Bridge Router Guide Version 6 2 or later Symptom The following message is displayed HSSI Interface Self Tests failed slot X The value of X can be 1 through 4 or 1 through 8 depending on whether you have a 4 slot or an 8 slot NETBuilder chassis Action Check to see if the card is inserted completely into the NETBuilder II chassis Maintaining the HSSI Module This section describes preventive maintenance you can take and how to replace the HSSI module Preventive Maintenance 3Com recommends the following procedures for preventive maintenance a Observe the guidelines in Appendix A of the NETBuilder IT Base System Installation Guide for minimum and maximum electrical and environmental requirements Keep the area around the NETBuilder II base system clean and avoid accumulated dust a Allow sufficient air space around the NETBuilder II base system for proper ventilation This protects the HSSI module from excessively high temperatures a Observe ESD guidelines whenever handling the HSSI module Refer to Chapter 5 of the NETBuilder II Base System Installation Guide for preventive maintenance tips that apply to the entire system 2 2 Troubleshooting and Maintenance Maintaining the HSSI Module Replacing the HSSI Module If any component in the HSSI module fails you will need to replace the entire module The HSSI module can be hot swapped which means that you c
15. m installation refer to the NETBuilder II Base System Installation Guide This guide is intended for the system administrator network equipment installer or network manager who is responsible for installing and managing the network hardware It assumes a working knowledge of network operations but it does not assume prior knowledge of 3Com internetworking equipment 2 NOTE If the information in the release note shipped with your software differs from the LVS information in this guide follow the release note How to Use This Guide The following list shows where to find specific information Refer to the documentation roadmap in the front of this manual for information on related manuals If you are looking for Turn to Installation procedure Chapter 1 Troubleshooting and maintenance information Chapter 2 Description of the HSSI module components Appendix A Technical support information Appendix B Conventions Enter vs Type When the word enter is used in this manual it means type something then press the Return key Do not press the Return key when an instruction simply says type Text represented as This typeface is used to represent displays that screen display appear on your terminal screen and commands that you enter for example setd 3 path cl e Bold vs plain text in Bold text summarizes the task you must perform Plain text procedures provides additional information for example 3 A
16. nd duration of the problem The system components involved Whether or not you can reproduce the problem a A list of all the 3Com products you have including Hardware models and serial numbers Software part numbers and revision levels a A list of all other products involved in the problem including Hardware products types and model numbers such as personal computers monitors fixed disks and modems Software products including operating systems and applications a A list of all recent system configuration changes including Hardware Operating system and application software Network and system administration procedures Your network supplier will determine what action needs to be taken to resolve the problem Returning Products for Repair If you need to have a product repaired local 3Com authorized service partners are good sources for quality repairs and spare parts However a situation may arise in which you need to return a product directly to 3Com for service Before doing this you must obtain a Return Materials Authorization RMA number Obtaining an RMA Number To obtain an RMA number contact 3Com Customer Repair Services at 800 876 3Com If you have a touch tone phone select hardware repair option 2 If you do not have a touch tone phone remain on the line for assistance You also can fax your repair request to 3Com at 408 764 7120 In order to obtain an RMA number you must p
17. nformation 3Com s warranty varies by product For warranty information on your product refer to your purchase agreement If you are a non contracted end customer refer to the warranty card accompanying the product or contact your authorized 3Com network supplier for assistance Additional Technical Support Services Additional information about obtaining technical support follows broken down into three sections m U S and Canada a Europe and Africa 7 Australia New Zealand Asia Japan Central America and South America Refer to the section that contains information relevant to your location U S and Canada Authorized 3Com network suppliers are qualified to provide network planning installation hardware maintenance application training and support services Many 3Com network suppliers are uniquely qualified to provide on site services for products from multiple vendors Contact your 3Com network supplier first for assistance If you do not know who this is Technical Support C 3 Additional Technical Support Services contact your nearest 3Com sales office To find the 3Com sales office nearest you call 1 800 NET3Com 638 3266 Before Contacting Your Network Supplier Before you talk to your network supplier make sure that you have detailed information about the problem including A complete description that includes The sequence of events or actions that led to the problem The nature symptoms a
18. or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 i of the Rights in Technical Data and Computer Software Clause at 48 C F R 52 227 7013 3Com Corporation 5400 Bayfront Plaza Santa Clara California 95052 8145 For civilian agencies Restricted Rights Legends Use reproduction or disclosure is subject to restrictions set forth in subparagraph a through d of the Commercial Computer Software Restricted Rights clause 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 3ComFacts Ask 3Com CardBoard and CardFacts are service marks of 3Com Corporation NETBuilder and NETBuilder II are registered trademarks of 3Com Corporation Boundary Routing is a trademark of 3Com Corporation CompuServe is a service mark of CompuServe Inc Other trademarks belong to their respective owners Manual written by Jennifer Rhoades Edited by Chris Dresden Technical illustration by Paul Naas and Deb Knodel Production by Ramona Boersma Before You Begin This guide describes how to install cable maintain and troubleshoot the High Speed Serial Interface HSSI module for the NETBuilder I base system The information in this guide applies to the NETBuilder II 4 slot chassis and the NETBuilder II 8 slot chassis For more information about the NETBuilder II base syste
19. our product refer to your purchase agreement If you are a non contracted end customer refer to the warranty card accompanying the product or contact your authorized 3Com network supplier for assistance Authorized 3Com network suppliers are qualified to provide network planning installation hardware maintenance application training and support services Contact your 3Com network supplier first for assistance If you do not know who this is contact your nearest 3Com sales office For Australia and New Zealand 3Com Intercontinental sales office Sydney Australia 61 2 9593020 For Asia 3Com Asia Ltd Hong Kong office 852 8489200 Singapore office 65 3218929 Taiwan office 886 2 7754352 For Japan 3Com KK 81 3 3243 9234 For Central America and South America Icon Support in the U S fax 408 7645742
20. rite down the serial number and the MAC address from the label on the component side of the HSSI module on the following line As e Serial number label Serial number example S N 1BK12345 MAC address example 0800021A4B5C You will need this information if you have to contact your network supplier The MAC address is also encoded in the HSSI module s EEPROM Use the procedure in Appendix B Displaying the MAC Address to display the MAC address encoded in the EEPROM Installation 1 3 Installing the HSSI Module Installing the HSSI Module aL Use this procedure to install the HSSI module into the NETBuilder II base system You will need a small flathead screwdriver NOTE There are two versions of the NETBuilder II 4 slot and 8 slot chassis The older single wide versions of the NETBuilder II 4 slot and 8 slot chassis have two flipper ejectors for each module The newer dual wide versions have one flipper ejector for each module except for the top slot which is reserved for the CEC module When the term dual wide NETBuilder II chassis is used in this manual it refers to a chassis with only one flipper ejector per module 1 Select an I O slot in which to install the HSSI module You can install the module in any available I O slot in the rear of the NETBuilder II base system The top slot is designated for the CEC module only 2 Remove the blanking plate from the I O slot you have selected for the
21. rovide the following information Name and phone number of technical contact at your company Company name Company shipping address Product name Model and serial numbers of the main unit Failed subassembly name and serial number if applicable C 4 Technical Support Additional Technical Support Services a Failure symptoms with diagnostic error messages if applicable a Proof of purchase for warranty repairs If you send a product to 3Com for repair without an RMA number displayed clearly on the outside of the box it will be returned to you unopened Paying for Repairs You may pay for repairs by C O D MasterCard or VISA Terms are available only if you have prearranged a special authorization with the 3Com credit department and you enclose a copy of the purchase order with the equipment 3Com reserves the right to charge for no problem found regardless of the product warranty status Packing and Shipping Products to 3Com To ensure the safe arrival and speedy repair of your equipment follow these packing and shipping guidelines a Package carefully using the original container if possible a Wrap controller boards and adapters in antistatic material m Do not include cables software or documentation a Include any problem diagnostic information m _ Include a packing list purchase order and other repair documentation a Print the RMA number clearly on the outside of the box If you send a product to
22. ssign a name to port 1 Use a name that is easy to remember Keys When 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 Italics Italics are used to denote new terms or emphasis Special Messages vi A special format indicates notes cautions and warnings These messages are defined as follows NOTE Notes call attention to important features or instructions CAUTION Cautions contain directions that you must follow to avoid immediate system damage or loss of data WARNING Warnings contain directions that you must follow for your personal safety Follow all instructions carefully Chapter 1 Installation This chapter describes how to install the HSSI module into the NETBuilder I base system The HSSI module provides a single serial interface for a WAN connection in the NETBuilder I base system It supports transmission rates up to OC1 including E3 T3 and sub rates L NOTE The HSSI module must be used with NETBuilder II HSSI and Single Mode FDDI LY YF Software 6 2 For information about the software see the NETBuilder II HSSI and Single Mode FDDI Software 6 2 Release Notes For information about the HSSI module components refer to Appendix A HSSI Module
23. ve type GO THREECOM and press Enter to see the Ask3Com main menu C 2 Technical Support 3Com Documentation on CD ROM Adapter Specific Bulletin Board System BBS This private BBS called CardBoard contains patches and drivers for 3Com adapter products as well as technical articles To access CardBoard call the CardBoard telephone number nearest to your location France 33 1 69 86 69 54 Modem set up to 9600 baud 8 data bits no parity 1 stop bit Germany 49 89 62732 188 or 49 89 62732 189 Modem set up to 9600 baud 8 data bits no parity 1 stop bit Italy 39 2 27 30 06 80 Modem set up to 9600 baud 8 data bits no parity 1 stop bit U K 44 0 442 278278 Modem set up to 9600 baud 8 data bits no parity 1 stop bit U S 1 408 980 8204 Modem set up to 14400 baud 8 data bits no parity 1 stop bit 3Com Documentation on CD ROM An extensive library of 3Com product documentation is available in CD ROM format through Support On Site for Networks subscription service This multivendor CD ROM service offered by Computer Library a division of Ziff Communication contains technical information and documentation from major data networking hardware and software manufacturers Stand alone and concurrent user subscriptions are available For more information call Computer Library at 800 827 7889 extension 515 Outside the U S call 212 503 4400 or use fax number 212 503 4487 Warranty I
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