3Com 5500-SI Switch User Manual
Contents
1. Connecting the Cables on page 2 5 for more information about connecting to the ports Modules within the AccessBuilder 7000 system are designed to be hot swapable It is not necessary to turn off the AccessBuilder 7000 s power supply unit to install the Triple Modem Module The Triple Modem Module can be inserted any slot in the AccessBuilder 7000 chassis No connecting cables are supplied with the Triple Modem Module as standard For each of the three modems you need a PSTN line cable and or a 2 4 wire private line cable You also need a cable to connect your computer or DTE equipment to the DTE interface on the modem The male DTE connector conforms to the electrical characteristics of V 24 as described in Appendix A CAUTION At all times take care not to touch any of the connectors or components on the cards to avoid damage by static electricity Handle the cards by the handles or by their edges Use an anti static wrist strap during installation if you have one available 2 3 Installing The Module Installing the Rear Card Ogn bl 009 00g 0000 00m 09 igen on 2 Boag tn o nn ne ton 290909090909 050509050 fo 02909 99 99 00905090509 050509050 02909000000 09 09 09959 00909 99 99 050509050 07000202020 00909000090 Installing The Rear Card Figure 2 1 Locate the rear slot equivalent to the front slot into2. tension r seau de t l communications est un circuit qui dans des conditions d op rations normales transfert les signeaux t l coms SELV Safety Extra Low Voltage tension de s curit extra r duite est un circuit secondaire d sign et prot g qui dans des conditions normales et de fautes uniques assure que la tension entre deux l ments accessibles n acced ra pas un niveau de s curit 42 2V max ou 60 V DO Connecter uniquement des unit s conformes aux normes relatives des interfaces de cet quipement CONTENTS IMPORTANT SAFETY INFORMATION WICHTIGE SICHERHEITSHINWEISE L INFORMATION DE SECURITE IMPORTANTE ABOUT THIS GUIDE Introduction 1 How to Use This Guide 1 Conventions 2 Additional Safety Information 3 TRIPLE MODEM MODULE Introduction 1 1 Principal Features 1 2 Implementation of V 32terbo 1 3 Typical Applications 1 5 Pack Contents Checklist 1 6 Registering Ownership of your Triple Modem Module 1 6 Pre installation Requirements 1 7 INSTALLATION AND OPERATION Overview 2 1 Installing The Module 2 2 Installing the Rear Card 2 3 Installing the Front Card 2 4 Connecting the Cables 2 5 Modem Lines 1 3 2 5 DTE Ports 1 3 2 5 Front Panel LEDs 2 6 3 TROUBLESHOOTING Troubleshooting Guide 3 1 Modem Health 3 1 Modem DTE Connection 3 2 Modem Telephone Line Connection 3 3 Connection Problems in Answering a Call 3 3 Connection Problems When Originating a Call 3 4 On line Op
3. 52 227 7013 3Com Europe Limited Merchants House Wilkinson Road Cirencester Gloucestershire GL7 1YT United Kingdom For civilian agencies Restricted Rights Legend Use reproduction or disclosure 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 Corporation s standard commercial agreement for the software Unpublished rights reserved under the copyright laws of the United States If there is any software on removable media described in this documentation it is furnished under a license agreement included with the product as a separate document in the hard copy documentation or on the removable media in a directory file named LICENSE TXT If you are unable to locate a copy please contact 3Com and a copy will be provided to you Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com AccessBuilder Boundary Routing LANplex LanScanner LinkBuilder NETBuilder NETBuilder Il Parallel Tasking ViewBuilder EtherDisk EtherLink EtherLink Plus EtherLink Il SmartAgent TokenLink TokenLink Plus TokenDisk and Transcend are registered trademarks of 3Com Corporation 3TECH CacheCard FDDILink FMS NetProbe and Star Tek are trademarks of 3Com Corporation 3ComFacts is a service mark of 3Com Corporation
4. 3 L LED selection button 2 7 LEDs front panel 2 6 LINE LED 2 6 N network supplier support D 3 D DTE ports 2 5 F features 1 2 front card installation 2 4 O on line technical services D 1 P pack contents 1 6 ports 2 5 pre installation requirements 1 7 PSTN line ports 2 5 push button 2 7 PWR LED 2 7 R rear card installation 2 3 REC LED 2 7 returning products for repair D 5 2 INDEX S SEND LED 2 7 T technical information A 1 technical support D 1 TERM LED 2 6 TEST LED 2 7 Triple Modem features 1 2 overview 1 1 typical applications 1 5 troubleshooting 3 1 typical applications 1 5 V V 32terbo 1 3 LIMITED WARRANTY HARDWARE 3Com warrants its hardware products to be free from defects in workmanship and materials under normal use and service for the following lengths of time from the date of purchase from 3Com or its Authorized Reseller Internetworking products One year Network adapters Lifetime Ethernet stackable hubs and unmanaged Ethernet fixed port repeaters Lifetime One year if not registered Power supply and fans in these stackable hubs and unmanaged repeaters One year Other hardware products One year Spare parts and spares kits 90 days If a product does not operate as warranted above during the applicable warranty period 3Com shall at its option and expense repair the defective product or part deliver to Customer an equivalent pro
5. 525 531 0591 Belgium 0800 71429 Netherlands 06 0227788 Brazil 55 11 546 0869 Norway 800 13376 Canada 905 882 9964 Singapore 65 538 9368 Denmark 800 17309 South Africa 27 11 803 7404 Finland 0800 113153 Spain 900 983125 France 05 917959 Sweden 020 795482 Germany 0130 821502 Taiwan 886 2 577 4352 Hong Kong 852 868 9111 United Arab 971 4 349049 Emirates Ireland 1 800 553117 U K 0800 966197 Italy 1678 79489 US 1 408 492 1790 Returning Products for Repair B 5 Returning Products for Repair A product sent directly to 3Com for repair must first be assigned a Return Materials Authorization 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 31 30 60 29900 option 5 44 1442 275822 Outside Europe U S and Canada 1 408 492 1790 1 408 764 7290 11 29 95 B 6 APPENDIX B TECHNICAL SUPPORT INDEX Numerics 3Com Bulletin Board Service 3ComBBS D 1 3Com sales offices D 4 A ALARM LED 2 7 ALERT LED 2 7 ANS LED 2 6 bulletin board service D 1 Cc cable pin outs A 8 CH 1 LED 2 7 CH 2 LED 2 7 CH 3 LED 2 7 COMP LED 2 6 CONN LED 2 6 connecting cables 2 5 CORR LED 2 6 l installation 2 2 front card 2 4 prerequisites 1 7 rear card 2
6. V 24 or V 28 signalling characteristics The DTE port connecting cable is not supplied with the module The following signalling characteristics should be observed when purchasing or fabricating a suitable cable 3Com end pin no 26 way male SCSI connec or Transmit Data A TXDA Receive Data RXD 103 Request to Send RTS 105 Clear to Send CTS 106 Signal Ground 102 Data Carrier Detect DCD 109 Signal Ground autosense Signal Ground autosense Transmit Clock TXCLK 114 Receive Clock RXCLK 115 Analog Loop Test 141 Data Terminal Ready DTR 108 Remote Digital Loop Test 140 External Clock EXCLK 2 2 3 3 4 4 5 5 7 7 11 12 15 15 17 17 18 18 20 20 21 21 24 24 Client end pin no 25 way male or female D type Transmit Data A TXDA Receive Data RXD 103 Request to Send RTS 105 Clear to Send CTS 106 Signal Ground 102 Data Carrier Detect DCD 109 Transmit Clock TXCLK 114 Receive Clock RXCLK 115 Analog Loop Test 141 Data Terminal Ready DTR 108 Remote Digital Loop Test 140 External Clock EXCLK A 10 APPENDIX A MODEM SPECIFICATION AND INTERFACE PIN ASSIGNMENTS V 35 V 36 The DTE port terminates with a 26 way miniature SCSI connector The port can be configured to support V 36 signalling characteristics The DTE port connecting cable is not supplied with the module The following signalling characteristics should be observed when pu
7. by an attached DTE via the Management Controller Module or by a remote DTE to which the modem has a communications link SEND Flashes on and off to indicate that the selected modem is receiving data from the equipment attached to the DTE interface REC Receive Flashes on and off to indicate that the selected modem is passing received data from the line to the DTE interface CH 1 Modem 1 Shows that Modem 1 is selected and that the LEDs show the status of this modem CH 2 Modem 2 Shows that Modem 2 is selected and that the LEDs show the status of this modem CH 3 Modem 3 Shows that Modem 3 is selected and that the LEDs show the status of this modem Push Button Selects the modem whose status is shown by the front panel LEDs Toggle this button until the required Modem LED is lit 2 8 CHAPTER 2 INSTALLATION AND OPERATION 3 TROUBLESHOOTING eee e e e a id Troubleshooting Guide In this section we discuss the basic problems that can occur when using your modem If you are having data communication difficulties such as periodic character loss random errors or constant format errors use the loopback tests described in AccessBuilder 7000 AT Command Reference With these tests you can usually isolate the fault in your system by using a process of elimination If a problem continues to occur contact your supplier for assistance Modem Health POWER LED does not light Make sure that the front and rear cards
8. connectors Troubleshooting and problem solving Chapter 3 Technical information and cable specifications Appendix A ASCII character table Appendix B Regulatory information Appendix C Technical support Appendix D Conventions The icon conventions that are used throughout this guide are Icon Type Description important features or instructions i Information Note Information notes call attention to 1 Caution h Warning Cautions alert you to personal safety risk system damage or loss of data Warnings alert you to the risk of severe personal injury The text conventions used in this guide are Convention Description Enter vs Type When the word enter is used in this guide it means type something then press the Return or Enter key Do not press the Return or Enter key when an instruction simply says type Text represented as screen display This typeface is used to represent displays on your screen for example Enter the unit s IP address Text represented as commands This typeface is used to represent commands that you enter for example co IS NU 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
9. formats include 8 data bits with no parity or 7 data bits with even odd mark or space parity Check that the DTE s data rate is supported by the modem Troubleshooting Guide 3 3 Modem Telephone Line Connection Connection Problems in Answering a Call Modem does not receive a dial tone Attach a telephone direct to the wall outlet to check if a dial tone exists Make sure the telephone line is connected to the appropriate modem s rear panel PSTN jack Modem does not go off hook and answer an incoming call Check that the auto answer ring count configuration option S Register 0 is set to a value other than 0 Check that the DTE is providing DTR to the modem If the DTE does not provide DTR to the modem check that the modem s DTR signalling configuration option is set to ignore the state of DTR Check that all cables are attached to the right connectors at the rear of the modem Modem goes off hook answers but does not connect Perform a local analogue loop test and check that data entered at the DTE is echoed back to the DTE Check that the originating modem s configuration is compatible with your receiving modems configuration Check that the originating modem recognizes your modem s answer tone Check that the originating modem supports your modems operating protocols Force your modem to operate using the same transmission protocol as the originating modem to see if they connect 3 4 CHAPTER 3 TROUBLE
10. module refer to the rear panel diagram in Section 1 2 for an exact reference of which socket services which modem on the communications card This is an RJ11 type socket that would typically be connected to a PSTN telephone wall socket using a cable conforming to the wiring diagram shown below a al 3Com end pin no Client end pin no RJ 11 male type BT male type BT wall socket plug SHUNT 1 4 A 3 2 B 4 5 EARTH 6 II A 12 APPENDIX A MODEM SPECIFICATION AND INTERFACE PIN ASSIGNMENTS Private Line Port Cable Pin Assignments Each modem on the communications card is equipped with a single Private line port supporting either a 2 or 4 wire connection which is accessed via the appropriate PRIVATE LINE socket on the card s interface module refer to the rear panel diagram in Section 1 2 for an exact reference of which socket services which modem on the communications card This is an RJ11 type socket that would typically be connected to a 2 or 4 wire private line outlet using a cable conforming to the wiring diagram shown below ae EN 3Com end pin no Client end pin no RJ 11 male type RJ 45 male type private line TX_2W_1 1 6 RX_4W_1 3 5 RX4W2 4 2 TX_2W_2 6 3 B TECHNICAL SUPPORT eee e e e g o 3Com provides easy access to technical support information through the variety of services described in this appendix On line T
11. 5 Connecting the Cables The ports on the rear panel are arranged in two groups ny go pz e KA Ly EAE Modem Lines 1 3 Each modem port has two connections Dial Line 1 3 amp 5 The upper RJ45 connection in each pair connects to a normal dialled service use this port to connect your modem to the line In some countries you may need to use an adapter to connect to your PSTN service provider s socket If you use a two into one line adapter a telephone handset can be connected in parallel to your modem at the PSTN outlet In this case you must not lift the telephone handset during data transmission If it is lifted any noise in the surrounding area interferes with the data and can cause corruption in the transferred data Private Line 2 4 amp 6 The lower RJ45 connection in each pair connects to a private line Use this port to connect your modem to the line In some countries you may need to use an adapter to connect to your PSTN service provider s socket DTE Ports 1 3 7 8 amp 9 Connect DTEs 1 through 3 to these ports using V 24 modem cable as described in Appendix A The DTE ports also allow direct access to the Triple Modem Module s management system using a PC or terminal This removes the need to access the Triple Modem Module through the AccessBuilder 7000 Management Controller Module For more information a
12. ACCESSBUILDER 7000 or TRIPLE MODEM MODULE USER GUIDE Part No 980 000048 001 Published June 1996 3Com Corporation m 5400 Bayfront Plaza m Santa Clara California m 95052 8145 3Com Europe Ltd 1996 All rights reserved No part of this documentation 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 Europe Ltd 3Com Europe Ltd reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Europe Ltd to provide notification of such revision or change 3Com Europe Ltd provides this documentation 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 documentation at any time UNITED STATES GOVERNMENT LEGENDS If you are a United States 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 or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii for restricted Rights in Technical Data and Computer Software clause at 48 C F R
13. ANTY SHALL BE REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION TO THE FULL EXTENT ALLOWED BY LAW THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES TERMS OR CONDITIONS EXPRESS OR IMPLIED EITHER IN FACT OR BY OPERATION OF LAW STATUTORY OR OTHERWISE INCLUDING WARRANTIES TERMS OR CONDITIONS OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND SATISFACTORY QUALITY 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE OR USE OF ITS PRODUCTS 3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EX PERSON S MISUSE NEGLECT IMPROPER INSTALLATIO MODIFY OR ANY OTHER CAUSE BEYOND THE RA LIGHTNING OR OTHER HAZARD LIMITATION OF LIABILITY TO THE FULL EXTENT ALLOWED BY LAW 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY WHETHER BASED IN INCIDENTAL CONSEQUENTIAL INDIRECT SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR FOR LOSS OF REVENUE OR PROFITS LOSS OF BUSINESS LOSS OF INFORMATION OR DATA OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE USE PERFORMANCE FAILURE OR INTERRUPTION OF ITS PRODUCTS EV IST OR WAS CAUSED BY CUSTOMER S OR ANY THIRD OR TESTING UNAUTHORIZED ATTEMPTS TO REPAIR OR NGE OF THE INTENDED USE OR BY A
14. CCIDENT FIRE CONTRACT OR TORT INCLUDING NEGLIGENCE FOR EN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEE ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND LIMITS ITS LIABILITY TO REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE Some countries states or provinces do not allow OPTION THIS DISCLAIMER OF LIABILITY FOR DAMAGES he exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers so the above limitations and exclusions may be limited in their application to you This warranty gives you specific legal rights which may vary depending on local law GOVERNING LAW This Limited Warranty shall be governed by the laws of the state of California 3Com Corporation 5400 Bayfront Plaza Santa Clara CA 95052 8145 408 764 5000 3 18 96 FCC CLASS A VERIFICATION STATEMENT This equipment has been tested with a class A computing device and has been found to comply with part 15 of FCC Rules Operation in a residential area may cause unacceptable interference to radio and TV receptions requiring the operator to take whatever steps are necessary to correct the interference CSA Statement This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference
15. Novell and NetWare are registered trademarks of Novell Inc Windows is a trademark of Microsoft Corporation VT100 is a registered trademark of Digital Equipment Corporation Other brand and product names may be registered trademarks or trademarks of their respective holders IMPORTANT SAFETY INFORMATION WARNING Warnings contain directions that you must follow for your personal safety Follow all instructions carefully Please read carefully and thoroughly the following information before installing the AccessBuilder 7000 Triple Modem Module Exceptional care must be taken during installation and removal of the module The safety status of the interconnection ports on this equipment are as follows Ports identified by the label PSTN and LEASE TNV Ports identified by the labels DTE SELV TNV telecoms network voltage is a circuit which under normal operating conditions carries telecommunication signals SELV safety extra low voltage is a secondary circuit which is designed and protected so that under normal and single fault conditions the voltage between any two accessible parts does not exceed a safe value 42 2 V peak or 60 V DC Only connect apparatus complying with the relevant interface requirements to the ports on this unit WICHTIGE SICHERHEITSHINWEISE ACHTUNG Die Warnungen enthalten Anweisungen die Sie zur eigenen Sicherheit zu befolgen haben Lesen Sie bitte die folgenden Informationen sorgf ltig durch be
16. SHOOTING Connection Problems When Originating a Call Modem fails to go off hook and originate a call Check that the modem s configuration enables either AT dialling or V 25bis dialling Note A modem configured to accept AT commands cannot accept V 25bis commands and vice versa If using DTR dialling check the telephone number stored in directory location 1 and check that the DTE is raising DTR from OFF to ON to initiate a dial If using V 25bis asynchronous dialling check that the correct character format is set to 7 data bits with even parity and 1 stop bit and the carriage return and line feed are used as command terminators If using V 25bis bisynchronous dialling check that the correct character format uses two synchronous control characters and a start of text control character before the text block and an end of text control character after it If using V 25bis HDLC check that the correct character format uses flag address and control characters before the text block and a frame sequence check and flag after the text block Modem dials but does not connect If the modem is operating behind a PBX check if a 9 and comma are needed before the telephone number Check whether tone or pulse dialling is needed Check if one modem is configured for error correction or disconnect and the other modem is configured for no error correction Try initiating the call in buffer mode If both modems use V 32bis or V 32 set t
17. are pushed fully home and that the rack enclosure is powered ON A problem is suspected after the power up self test Initiate a local analogue loopback with a pattern test If the modem consistently registers errors contact your modem supplier If the modem passes these tests and you still have a problem it is probably not with your modem 3 2 CHAPTER 3 TROUBLESHOOTING Modem DTE Connection Modem does not accept or echo back AT commands Check that the cable between the serial port of the DTE and the modem is a standard RS232 cable If the cable is bad replace it Null modem cables also known as cross over cables do not work in this application A limited number of dumb terminals require DCD before they can talk to the modem If this is the case you have to use a breakout box to raise DCD to the terminal You can then configure the modems to force DCD using the ATeco command Check that the character echo command is enabled using the ATE command Check that the DTE dialler type configuration option is set to AT Refer to the AT amp M or AT amp Q command description Check that the response codes configuration option is enabled using the ATQ command Make sure that all AT commands are terminated with a carriage return Check that the ASCII value of a carriage return matches what is used by the DTE and the modem defined using S Register 3 Check that the DTE and modem are using a compatible character format Valid
18. bout configuring the module see the AccessBuilder 7000 AT Command Reference 2 6 CHAPTER 2 INSTALLATION AND OPERATION Front Panel LEDs 30404000 Modem ANS TERM LINE CONN CORR COMP PWR ALARM ALERT TEST SEND REC CH1 CH2 CH3 This section describes the Triple Modem Module s LEDs Most of the LEDs can only be seen when the front door of the AccessBuilder 7000 chassis is open When the door is closed only the PWR ALARM ALERT and TEST LEDs can be seen These LEDs show the status of the whole module The other status LEDs show information about one modem only You can select the modem by toggling the push button at the foot of the module ANS Answer Lights to show that the selected modem is configured to automatically answer an incoming PSTN call When an incoming call is detected this LED flashes in sequence with each ring pulse TERM Terminal Shows that a DTE is attached to the selected modem s DTE interface and that DTR is raised It is normally used to indicate that a call can be made or an incoming a call answered The modem may be configured to act in different ways on receipt of this signal according to the ATeD and ATeM commands See AccessBuilder 7000 AT Command Reference for more information LINE On Line Indicates that the selected modem has seized the telephone line CONN Connect Indicates that the selected modem has established a valid connec
19. c shock by shorting out internal components Be sure nothing rests on the units system cables and that the cables are not located where they can be stepped on and cause damage to the unit Keep the unit away from radiators and heat sources Install the unit in a clean area free from dust or extreme temperatures Interconnecting directly or by way of other apparatus to ports complying with SELV requirements may produce hazardous conditions on the network Advice should be sought from a competent engineer before such a connection is made TRIPLE MODEM MODULE e se Introduction This chapter outlines the features and uses of the AccessBuilder 7000 Triple Modem Module when installed in the AccessBuilder 7000 Access Concentrator chassis The Triple Modem Module houses three modems on a single device module that operate independently of each other but are identical in the features and facilities they offer Each modem is a fully featured high speed device which provides reliable asynchronous and synchronous operation over dialled or private line networks The high speed transfer of up to 33 6 Kbps over dialled lines is guaranteed by using CCITT V 42bis MNP Class 5 data compression and CCITT V 42 MNP error correction IN addition to the fast line speeds each modem can transfer data to the attached computer at speeds which can vary from 300 bps to 115200 bps The modems are compatible with a number of dialling methods and prot
20. causing equipment standard entitled Digital Apparatus ICES 003 of the Department of Communications Cet appareil num rique respecte les limites de bruits radio lectriques applicables aux appareils num riques de Classe A prescrites dans la norme sur le mat riel brouilleur Appareils Num riques NMB 003 dict e par le ministre des Communications European Statement This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Information To The User If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures m Reorient the receiving antenna m Relocate the equipment with respect to the receiver m Move the equipment away from the receiver m Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 In o
21. duct or part to replace the defective item or refund to Customer the purchase price paid for the defective product All products that are replaced will become the property of 3Com Replacement products may be new or reconditioned Any replaced or repaired product or part has a ninety 90 day warranty or the remainder of the initial warranty period whichever is longer 3Com shall not be responsible for any software firmware information or memory data of Customer contained in stored on or integrated with any products returned to 3Com for repair whether under warranty or not SOFTWARE 3Com warrants that the software programs licensed from it will perform in substantial conformance to the program specifications therefor for a period of ninety 90 days from the date of purchase from 3Com or its Authorized Reseller 3Com warrants the media containing software against failure during the warranty period No updates are provided 3Com s sole obligation with respect to this express warranty shall be at 3Com s discretion to refund the purchase price paid by Customer for any defective software products or to replace any defective media with software which substantially conforms to 3Com s applicable published specifications Customer assumes responsibility for the selection of the appropriate applications program and associated reference materials 3Com makes no warranty or representation that its software products will work in combination with any hardwar
22. e DTE and telephone connection cables available and have easy access to telephone connection points m If you are using a terminal server for connection to your LAN check that this is installed and configured for operation 1 8 CHAPTER 1 TRIPLE MODEM MODULE 2 INSTALLATION AND OPERATION ete a id Overview This chapter describes how to install the AccessBuilder 7000 Triple Modem module into the AccessBuilder 7000 Access Concentrator chassis how to connect to your DTEs and PSTN lines and how to read the LEDs on the module front panel Ensure you read the safety information at the front of this guide before gt commencing installation of the AccessBuilder 7000 Triple Modem Module Check that you have met all the pre requisites out lined in Chapter 1 and that you have access to the phone lines to connect your modems 2 2 CHAPTER 2 INSTALLATION AND OPERATION Installing The Module gt Before installing the module read the Safety Information at the front of this guide An AccessBuilder 7000 module consists of two parts a front card and a back card that both connect to the chassis backplane It is recommended that you install the module rear card into the chassis first The installation of the Triple Modem Module into the AccessBuilder 7000 chassis takes place in three distinct operations Installing the front card Installing the rear card Connecting cables to the DTE and Line ports See
23. e 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 be corrected For any third party products listed in the 3Com software product documentation or specifications as being compatible 3Com will make reasonable efforts to provide compatibility except where the non compatibility is caused by a bug or defect in the third party s product STANDARD WARRANTY SERVICE Standard warranty service for hardware products may be obtained by delivering the defective product accompanied by a copy of the dated proof of purchase to 3Com s Corporate Service Center or to an Authorized 3Com Service Center during the applicable warranty period Standard warranty service for software products may be obtained by telephoning 3Com s Corporate Service Center or an Authorized 3Com Service Center within the warranty period Products returned to 3Com s Corporate Service Center must be pre authorized by 3Com with a Return Material Authorization RMA number marked on the outside of the package and sent prepaid insured and packaged appropriately for safe shipment The repaired or replaced item will be shipped to Customer at 3Com s expense not later than thirty 30 days after receipt of the defective product by 3Com WARRANTIES EXCLUSIVE IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE CUSTOMER S SOLE REMEDY FOR BREACH OF THAT WARR
24. echnical Services 3Com offers worldwide product support seven days a week 24 hours a day through the following on line systems m 3Com Bulletin Board Service 3ComBBS m World Wide Web site 3Com Bulletin Board Service 3ComBBS contains patches software and drivers for all 3Com products as well as technical articles This service is available via modem or ISDN seven days a week 24 hours a day Access by Modem To reach the service by modem set your modem to 8 data bits no parity and 1 stop bit B 2 APPENDIX B TECHNICAL SUPPORT Call the telephone number nearest you Country Data Rate Telephone Number Australia up to 14400 bps 61 2 9955 2073 France up to 14400 bps 33 1 69 86 69 54 Germany up to 9600 bps 49 89 627 32 188 or 49 89 627 32 189 Hong Kong up to 14400 bps 852 2537 5608 Italy fee required up to 14400 bps 39 2 273 00680 Japan up to 14400 bps 81 3 3345 7266 Singapore up to 14400 bps 65 534 5693 Taiwan up to 14400 bps 886 2 377 5838 UK up to 28800 bps 44 1442 278278 US up to 28800 bps 1 408 980 8204 Access by ISDN ISDN users can dial in to 3ComBBS using a digital modem for fast access up to 56 Kbps To access 3ComBBS using ISDN dial the following number 1 408 654 2703 World Wide Web Site Access the latest networking information on 3Com s World Wide Web site by entering our URL into your Internet browser http www 3Com com This service fea
25. eration 3 6 Private line Operation 3 6 Dial Backup Operation 3 6 A MODEM SPECIFICATION AND INTERFACE PIN ASSIGNMENTS Transmitter Receiver Specifications A 1 Autodial Autoanswer A 2 Physical Description A 3 Approvals Information A 4 General Approvals Requirements A 4 Interference and Safety Requirements A 5 PBX and PABX Application A 6 Ringer Equivalence A 7 DTE Port Pin Assignments A 8 X21 V11 A 8 V 24 V28 A 9 V35 V 36 A 10 PSTN Port Cable Pin Assignments A 11 Private Line Port Cable Pin Assignments A 12 B TECHNICAL SUPPORT On line Technical Services D 1 3Com Bulletin Board Service D 1 Access by Modem D 1 Access by ISDN D 2 World Wide Web Site D 2 Support from Your Network Supplier D 3 Support from 3Com D 4 Returning Products for Repair D 5 INDEX LIMITED WARRANTY FCC CLASS A VERIFICATION STATEMENT ABOUT THIS GUIDE Introduction This guide describes the features installation and configuration of the AccessBuilder 7000 Triple Modem Module This guide assumes that you have installed your AccessBuilder 7000 Access Concentrator and that the phone lines to which you want to connect the modems are installed and operational How to Use This Guide This table shows where to find specific information If you are looking for information on Turn to The Triple Modem Module s features and typical Chapter 1 uses Installation and descriptions of the front panel Chapter 2 LEDs and rear panel
26. figurations Front panel LEDs to inform you of the current status of any of the three modems m Easy to install configure and support Implementation of V 32terbo Support of the V 32terbo transmission protocol is included as a feature in the modems V 32terbo is a non proprietary extension of the widely used CCITT V 32bis standard which increases the maximum data signalling rate from 14400 to 19200 bps over dial up links or private lines Compatibility between V 32terbo and V 32bis is maintained in a similar manner as it is between V 32bis and V 32 in that an identical training sequence is used by each standard and that V 32terbo uses a subset of the speeds available in V 32bis By default each modems factory configurations enable V 32terbo to be negotiated as the optimum data rate on any given link allowing a 33 increase in line throughput to 19200bps to be used wherever possible Where the quality of the line is not good enough to enable transmission at 19200bps an intermediate speed of 16800 bps can be 1 4 CHAPTER 1 TRIPLE MODEM MODULE negotiated between modems providing a 16 7 increase in speed over that which can be negotiated using V 32bis If the modem you are calling is unable to operate at the same high speeds as your modem an optimum data transfer rate is negotiated between the two using the default configuration settings When using the higher line speeds made available by V 32terbo the throughput rate can be
27. for example Press Ctrl Alt Del Italics Italics are used to denote new terms or emphasis Additional Safety Information 3 Additional Safety Information gt See also the Important Safety Information at the front of this guide When using the unit observe the following safety information Retain this user s guide for later use and pass it on in the event of change of ownership of the unit Products manufactured by us are safe and without risk provided they are installed used and maintained in good working order in accordance with our instructions and recommendations If any of the following conditions occur isolate the electricity supply and refer to your 3Com reseller a Ifthe module is damaged f the module begins to make an odd noise smell or smoke f the module shows signs of a distinct change in performance Never install telephone wires during a lightening storm or install telephone connection sockets in wet locations unless the socket is specifically designed for wet locations Do not touch uninstalled telephone wires or terminals unless the telephone line has been disconnected at the network interface Always exercise caution when installing or modifying telephone lines Do not spill food or liquids on the unit If the unit gets wet isolate the electrical supply and contact your 3Com reseller Do not push any objects into the openings of the unit Doing so can cause fire or electri
28. gle serial port marked DTE which can be used to enter asynchronous AT or V 25bis commands and pass asynchronous or synchronous user data This is a female 26 pin V 24 connector and can be used with X 21 V 11 v 24 V 28 or V 35 V 36 signalling The cable pin outs for each type of cable are shown below The DTE port terminates with a 26 way miniature SCSI connector The port can be configured to support V 11 signalling characteristics The DTE port connecting cable is not supplied with the module The following signalling characteristics should be observed when purchasing or fabricating a suitable cable 3Com end pin no Client end pin no 26 way male SCSI connector 15 way male or female D type Transmit Data A TXDA 2 2 Transmit Data A TXDA Receive Data A RXDA 3 4 Receive Data A RXDA Signal Ground Receive Data 7 y 8 Signal Ground Interface Automatic Identifier 12 Indicate B INDB 13 12 Indicate B INDB Transmit Data B TXDB 149 Transmit Data B TXDB Indicate A INDA 15 5 Indicate A INDA Receive Data B RXDB 16 11 Receive Data B RXDB Clock A CLKA 1776 Clock A CLKA Clock B CLKB 19 13 Clock B CLKB Control B CTRLB 23 10 Control B CTRLB Control A CTRLA 24 3___ Control A CTRLB V 24 V 28 DTE Port Pin Assignments The DTE port terminates with a 26 way miniature SCSI connector The port can be configured to support
29. he modem s V 32bis training configuration option to Long Troubleshooting Guide 3 5 Intermittent disconnects high error rates or excessive retransmissions Perform a remote digital loop test as described in the AccessBuilder 7000 AT Command Reference Modem establishes and disconnects a call You may have a poor telephone line connection Disconnect and dial again The remote modem may have encountered an error correction disconnect where the modem is configured to establish a call using error correction If the modem cannot negotiate error correction then a disconnect occurs The remote modem may be in a forced error correction mode disconnect if there is no error control Reconfigure your modem to V 42 MNP or buffer correction and try again Perform a local analogue loop test 3 6 CHAPTER 3 TROUBLESHOOTING On line Operation Data is scrambled Check that the character format data bits parity and stop bits is set to the same value in both modems Missing data during a transfer Check that you are using the same method of flow control for both the modem and the DTE If using XON XOFF flow control check that the modem s parity matches the DTE s parity Private line Operation Modems do not train up on private lines Check that the correct cabling is used for your application Check that one modem is configured for answer mode and the other is configured for originate mode Check that both modems are using
30. hone network GSTN PSTN and extensions on compatible PABXs It is also suitable for use on point to point private circuits omnibus or multipoint circuits using two or four wire termination provided by Approved Telecommunication Operators or to a relevant branch system If any other apparatus including cable or wiring is to be connected between the apparatus and the point of connection to a 2 wire or 4 wire speech band circuit then all that other apparatus shall conform to the following m The overall transmission characteristics of all that other apparatus shall be such as to introduce no material effect upon the electrical conditions presented to one another by the apparatus and the digital circuit Approvals Information A 5 All the other apparatus shall comprise only Apparatus approved see note for the purpose of connection between the apparatus and the digital circuit and Cable or wiring complying with a code of practice for the installation of apparatus covered by this standard or such other requirements as may be applicable Fe Such apparatus may have been approved subject to limitations on its use This modem is suitable for use on telephone lines provided with loop disconnect or multi frequency MF dialling facilities This modem is suitable for household office and similar indoor use but is not suitable for use on an extension to a payphone or a 1 1 carrier system This unit may be used on circuits wi
31. increased further by using the modem s error correction and data compression facilities Compression factors remain virtually unaffected by the increase in line rate thereby producing a real improvement in data transmission times over those achieved using V 32bis Introduction 1 5 Typical Applications The Triple Modem module is ideally suited for large central sites providing access for remote users to central site services In the example shown in Figure 1 1 a large number of remote users connect to the central site s AccessBuilder 7000 and gain access to the corporate LAN and its facilities through a terminal server such as the 3Com CS3000 3100 series The advantage of this method is that all devices on the corporate LAN can be accessed remotely by a large number of remote users p hy Remote Sites TH Il S PSTN Mm 1 AccessBuilder 7000 TAT Il u DTE Connections Terminal Server Corporate LAN D Figure 1 1 Modem Connections To The Central Si 1 6 CHAPTER 1 TRIPLE MODEM MODULE Pack Contents Checklist Before you install your Trip
32. ion of initial proceed indication m Detection of secondary proceed indication Operation in the absence of proceed indication Automatic dialling facilities m Tone detection for example ring tone busy tone m Automatic answering of incoming calls m Automatic clearing from call originating end Call progress monitor m Series connection via optional cable m Modem Any other usage will invalidate the approval of the apparatus if as a result it then ceases to conform to the standards against which approval was granted This unit is only approved for compatible PBXs The supplier of your unit should be consulted for an up to date list of PBXs with which this unit is compatible There is no guarantee of correct working in all circumstances Any difficulty should be referred to the supplier of the unit This unit is suitable for connection to PBXs which return secondary proceed indication Approvals Information A 7 Ringer Equivalence REN is a guide to the maximum number of apparatus for example telephones that can be simultaneously connected to one telephone line The REN value of each apparatus is added together and must not exceed 4 Unless otherwise marked a telephone can be assumed to have a REN of 1 0 Each modem on this unit has a ringer equivalence number REN of 4 0 A 8 APPENDIX A MODEM SPECIFICATION AND INTERFACE PIN ASSIGNMENTS DTE Port Pin Assignments X 21 V 11 Each modem is equipped with a sin
33. l digital loop or remote digital loop available using AT commands Physical Description Power 16V ac 47 to 63 Hz 1A max Typical power consumption 11 Watts Environment Temperature 0 to 40 degrees centigrade operating 50 to 70 degrees centigrade storage Relative humidity 5 to 95 non condensing Altitude to 3000 meters A 4 APPENDIX A MODEM SPECIFICATION AND INTERFACE PIN ASSIGNMENTS Approvals Information This product complies with the electro magnetic compatibility EMC requirements of EN 55022 Class A and EN 50082 susceptibility The product carries the CE certification mark to indicate conformance with the following EU directives LVD Low Voltage Directive Safety 73 23 EEC m EMC Electro Magnetic Compatibility Directive 89 336 EEC m TTE Telecommunication Terminal Equipment Directive 91 263 EEC This product also meets the safety requirements of EN41003 and EN60950 See also the FCC and CSA statements at the back of this guide General Approvals Requirements This section pertains to the approval of the modems and to your country s approvals board requirements and notices for use of these modems Users of this module should pay particular attention to this information This unit is approved for connection to the telecommunications systems specified in the instructions for use subject to the conditions set out in them Each modem is suitable for connection to the general switched telep
34. le Modem Module check the contents of the box against the pack contents checklist below If any of the items have been damaged in transit or are missing then contact the 3Com reseller from whom the equipment was purchased 1x Triple Modem Module front card 1x Triple Modem Module back card m 1 x AccessBuilder 7000 Triple Modem Module User Guide This manual m 1 x AccessBuilder AT Command Reference guide 1x warranty registration card It is important that you save the box and protective packing material in case you need to store or transport your Triple Modem Module in the future Registering Ownership of your Triple Modem Module A warranty registration card is enclosed in the box with your AccessBuilder 7000 Triple Modem Module Please take a few moments before commencing the installation to fill in the card and post it to us Pre installation Requirements 1 7 Pre installation Requirements Before you install the Triple Modem Module into the AccessBuilder 7000 Access Concentrator chassis check that the following requirements have been met m The AccessBuilder 7000 Access Concentrator must already be fitted with its power supply module s and the Management Controller Module if required m The rack unit into which you install the AccessBuilder 7000 must allow for the door to be fully opened to remove existing modules or to install new modules During normal operation the door must remain closed m You should hav
35. lex modems operating at data signalling rates of 33600 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 and 2400 bps Non proprietary V 32 terbo 2 wire or 4 wire full duplex modems operating at data signalling rates of 19200 16800 14400 12000 9600 7200 and 4800 bps V 32bis 2 wire or 4 wire full duplex modems operating at data signalling rates of 14400 12000 9600 7200 and 4800 bps V 32 2 wire or 4 wire full duplex modems operating at data signalling rates of 9600 and 4800 bps 2 wire PSTN backup of the Private line CCITT V 42bis or MNP Class 5 data compression a Virtual error free data passage using CCITT V 42 LAPM or MNP Level 4 error correction Introduction 1 3 m Asynchronous dial DTE data rates from 300 to 115200 bps m Modem configuration changes using the DTE interface or throught the Management Controller Module Compatibility with the industry standard AT command set m Storage of up to 20 telephone numbers in directory locations m Dialling using AT commands CCITT V 25bis commands or by raising DTR on the Host to modem interface or by data being sent to the DTE interface m High speed transmission using asynchronous or synchronous or UNIX devices over full duplex dial networks and 2 wire or 4 wire lines m Self testing facilities providing local and remote loopbacks including CCITT compatible V 54 m Five factory set configurations and two user definable con
36. ocols such as asynchronous AT commands and CCITT V 25bis dialling which allow you to uses the modems in a variety of applications and environments You can control each Triple Modem s configuration dialling characteristics and diagnostic features Five factory set configurations containing the most commonly used Triple Modem settings are permanently stored in each Triple Modem s memory providing a quick and easy method of a configuring a Triple Modem to be compatible with asynchronous and synchronous data environments over 2 wire or 4 wire Private lines or the PSTN 1 2 CHAPTER 1 TRIPLE MODEM MODULE Principal Features Support for dial up transmission protocols V 34 2 wire full duplex modems operating at data signalling rates of 33600 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 and 2400 bps Non proprietary V 32 terbo 2 wire full duplex modems operating at data signalling rates of 19200 16800 14400 12000 9600 7200 and 4800 bps V 32bis 2 wire full duplex modems operating at data signalling rates of 14400 12000 9600 7200 and 4800 bps V 32 2 wire full duplex modems operating at data signalling rates of 9600 and 4800 bps V 23 75 1200 bps operation V 22bis 2400 bps full duplex operation V 22 and Bell 212A 1200 bps full duplex 2 wire modem V 21 and Bell 103J 300 bps modems Support for leased line transmission protocols V 34 2 wire or 4 wire full dup
37. rchasing or fabricating a suitable cable 60000008 EEE 00000000000 PE a 00000000 weh 20000000002 3Com end pin no Client end pin no 26 way male SCSI connector 34 way MRAC Connector Transmit Data A TXDA 103 2 P Transmit Data TXD 103 Receive Data A RXDA 104 3 R Receive Data RXD 103 Request to Send RTS 105 4 C Request to Send RTS 105 Clear to Send RTS 106 5 D Clear to Send RTS 106 Data Set Ready DSR 107 6 E Data Set Ready DSR 107 Signal Ground 102 7 B Signal Ground 102 Data Carrier Detect DCD 109 8 F Data Carrier Detect DCD 109 Interface Automatic Identifier 11 Serial Clock Transmit B 13 AA Serial Clock Transmit A SCTB 114 SCTB 114 Transmit Data B TXDB 103 14 _ Transmit Data B TXDB 103 Serial Clock Transmit A 15 Y Serial Clock Transmit A SCTA 114 SCTB 114 Receive Data B RXDB 104 16 T Receive Data B RXDB 104 Serial Clock Receive A 17 V Serial Clock Receive A SCRA 115 SCRA 115 Serial Clock Transmit B 19 X__ Serial Clock Transmit B SCRB 115 SCRB 115 Data Terminal Ready DTR 108 20 H Data Terminal Ready DTR 108 PSTN Port Cable Pin Assignments A 11 PSTN Port Cable Pin Assignments Each modem on the communications card is equipped with a single PSTN line port which is accessed via the appropriate DIAL LINE socket on the card s interface
38. rder to meet FCC emissions limits this equipment must be used only with cables which comply with IEEE 802 3
39. th CEPT L1 signalling at a nominal frequency of 2280 Hz It does not require signalling or otherwise employ the frequency range 0 Hz to 200 Hz and there is no requirement for DC from the telephone line for correct operation This unit causes a line voltage drop of 0 2 V at a line current of 40 mA Interference and Safety Requirements Radio frequency interference may be caused by incorrect operation or inadequate maintenance of this equipment This unit is intended for use with screened digital cables If any of your apparatus is not operating correctly you should immediately remove it from the telephone line as this may harm the telephone network GSTN The approval of this unit for connection to GSTN or private speech band circuits is invalid if the apparatus is subject to modification in any material way not authorized or if it is used with or connected to internal software which has not been formally accepted A 6 APPENDIX A MODEM SPECIFICATION AND INTERFACE PIN ASSIGNMENTS A CAUTION Danger of explosion if the battery is incorrectly replaced Replace only with the same or equivalent type of battery as specified by the manufacturer A used battery must be disposed of in accordance with the manufacturer s instructions PBX and PABX Application This unit has been approved for use of the following facilities m Loop disconnect and multi frequency signalling m Storage of telephone numbers for retrieval by a predetermined code m Detect
40. the same modulation scheme Dial Backup Operation Modems do not establish a PSTN link when the Private line fails Check that the communicating modems are configured to support dial backup as described in the AccessBuilder 7000 AT Command Reference Check that one modem is configured to initiate the backup i e is the master modem and has the backup telephone number stored in its directory location 8 and the other modem is configured to be a slave its directory location 8 is empty Check that both modems are using the same modulation scheme over their PSTN line MODEM SPECIFICATION AND e INTERFACE PIN ASSIGNMENTS Transmitter Receiver Specifications Modulation CCITT V 34 33600 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 2400 bps Non proprietary V 32terbo 19200 16800 14400 12000 9600 7200 4800 bps CCITT V 32bis 14400 12000 9600 7200 4800 bps CCITT V 32 9600 4800 bps CCITT V 22bis 2400 bps CCITT V 22 1200 bps CCITT V 21 300 bps Bell 212A 1200 bps Bell 103J 300 bps Operation 2 wire or 4 wire synchronous asynchronous private line or 2 wire PSTN operation Output level Selectable 0 dBm to 15 dBm 600 ohms impedance UK versions set to 9 dBm for PSTN operation or 13 dBm for private wire A 2 APPENDIX A MODEM SPECIFICATION AND INTERFACE PIN ASSIGNMENTS Data Input Serial binary Complies with CCITT V 28 Accepts levels 3
41. tion to the remote device and is either negotiating the error correction and data compression protocols to be used on the link or it is ready to send and receive data This LED does not indicate that the DCD Data Carrier Detect signal is high on the DTE interface CORR Correct Indicates that an error correcting link has been made with the remote modem While using this facility each time a re send request is initiated by the selected modem the LED flashes for a short period COMP Compress Indicates that the data compression facility is active on the selected modems link giving you the maximum throughput speed During a call this LED may go out when the modem is using V42bis compression if the modem determines that the link cannot benefit from compression Front Panel LEDs 2 7 PWR Power When lit indicates that the module is receiving power from the chassis backplane and that the power circuits are functioning correctly ALARM Lights to indicate that an event has occurred on one or more of the modems which has been configured to raise an alarm See the AccessBuilder 7000 Access Concentrator User Guide for more information ALERT Lights to indicate that an event has occurred on one or more of the modems which has been configured to raise an alert See the AccessBuilder 7000 Access Concentrator User Guide for more information TEST Indicates that one of the modems on the module is running a test This may have been initiated either
42. tures news and information about 3Com products customer service and support 3Com s latest news releases selected articles from 3TECH 3Com s award winning technical journal and more Support from Your Network Supplier B 3 Support from Your Network Supplier If additional assistance is required contact your network supplier Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services including network planning installation hardware maintenance application training and support services When you contact your network supplier for assistance have the following information ready m Diagnostic error messages m A list of system hardware and software including revision levels m Details about recent configuration changes if applicable If you are unable to contact your network supplier see the following section on how to contact 3Com B 4 APPENDIX B TECHNICAL SUPPORT Support from 3Com If you are unable to receive support from your network supplier technical support contracts are available from 3Com In the U S and Canada call 800 876 3266 for customer service If you are outside the U S and Canada contact your local 3Com sales office to find your authorized service provider These numbers are toll free Country Telephone Number Country Telephone Number Australia 61 2 959 3020 Japan 81 3 33457251 Sydney Melbourne 61 3 653 9515 Mexico
43. volts to 25 volts space mark Single wire ground return 3000 to 7000 ohms load Data Output Serial binary Complies with CCITT V 28 12 volts nominal Output impedance 300 ohms Synchronization RTS CTS delay dependent on modulation format Equalizer Automatic adaptive equalizer Error correction V 42 LAPM and MNPA Data compression V A2bis and MNP5 Autodial Autoanswer Method Pulse dial 10 pps rate Make period 33 msec Break period 67 msec UK version Interdigit period 800msec Tone dial On time 85 msec ID time 85 msec Duty cycle 50 Line Interface 600 ohm impedance Bell tinkle suppression provided Old and new dial tone detection Secondary dial tone detection for PABX use Progress tones and answer tone detection Physical Description A 3 Protocols Extended AT command set Non volatile memory 5 preset factory 2 user defined configurations and one power up configuration 20 stored telephone numbers AT or V 25bis asynchronous bisynchronous and HDLC synchronous commands are entered via the DTE interface ASCII or EBCDIC character set used in V 25bis command mode Autoanswer CCITT V 25 compliant Busy Busy out via AT command or DTR Disconnect Call cleared selectable on loss of DTR and or no carrier for n seconds and or no data for n seconds and or a disconnect request is received from the remote modem in error correction Test Functions Local analogue loop loca
44. vor Sie den AccessBuilder 7000 Triple Modem Module einbauen Auf besondere Vorsicht mu w hrend des Ein und Ausbaus des Einheits geachtet werden Der Sicherheitsstandard der Anschl sse fuer dieses Ger t sind wie folgt Anschl sse bezeichnet mit PSTN und LEASE TNV Anschl sse bezeichnet mit DTE SELV TNV Telecoms Network Voltage Spannung des Telekommunikationsnetzwerks ist ein Anschluss der unter normalen Umst nden Telekommunikationssignale enth lt SELV Safety Extra Low Voltage Extra Sicherheitsspannung ist ein weiterer Anschluss der unter normalen Umst nden und Fehlerkonditionen entworfen und gesichert wurde so dass die Spannung zwischen zwei erreichbaren Teilen kein gef hrliches Niveau erreicht 42 2V max oder 60V DC An den Anschlussbuchsen der Ger te d rfen nur die daf r vorgesehenen Anschl sse verwendet werden L INFORMATION DE S CURIT IMPORTANTE AVERTISSEMENT Les avertissements contiennent les instructions que vous devez suivre pour votre s curit personnelle Suivre toutes les instructions avec soin Veuillez lire fond l information suivante avant d installer le moyeu Le soin exceptionnel doit tre pris pendant l installation et l enl vement du moyeu Les normes de s curit des ports d interconnexion sur cet quipement sont les suivants Les ports marqu s par les etiquettes PSTN et LEASE TNV Les ports marqu s par les etiquettes DTE SELV TNV Telecoms Network Voltage
45. which you will install the front card 1 2 Remove the metal blanking plate at the rear of the chassis and retain the screws Retain the blanking plate If you remove the module the blanking plate must be refitted to the chassis to aid the circulation of cooling air and to prevent dust and debris entering the unit Insert the rear card with the RJ45 ports at the top of the card and slide it home along the guide rails so that it connects with the backplane 3 4 Secure the rear card into position using the screws from the blanking plate 2 4 CHAPTER 2 INSTALLATION AND OPERATION Installing the Front Card oo AAA A SS Figure 2 2 Example of Installing A Front Card 1 Locate the front slot in the AccessBuilder 7000 chassis equivalent to the rear slot in which you have already installed the rear card 2 Insert the front card into the slot ensuring that it is centered along the guide rails 3 Use the module s handles to push the card home into the chassis and lock it into place 4 Close and lock the chassis door To remove the card unlatch the handles to free the card from the back plane and pull the front card free from the chassis using the handles Installing The Module 2
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