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3Com AccessBuilder 980/000048/001, User Manual

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Approvals Information

A

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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.

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Summary of Contents for AccessBuilder 980/000048/001

Page 1: ...ACCESSBUILDER 7000 TRIPLE MODEM MODULE USER GUIDE Part No 980 000048 001 Published June 1996...

Page 2: ...e 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 Softw...

Page 3: ...ction 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 opera...

Page 4: ...nschl 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 Tele...

Page 5: ...s Les ports marqu s par les etiquettes PSTN et LEASE TNV Les ports marqu s par les etiquettes DTE SELV TNV Telecoms Network Voltage tension r seau de t l communications est un circuit qui dans des con...

Page 6: ......

Page 7: ...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 Req...

Page 8: ...ackup 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 Appro...

Page 9: ...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 LI...

Page 10: ......

Page 11: ...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 uses Ch...

Page 12: ...hen 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 scree...

Page 13: ...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 interfa...

Page 14: ...4 ABOUT THIS GUIDE...

Page 15: ...a 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 mode...

Page 16: ...peration 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 duplex modems operating at dat...

Page 17: ...current status of any of the three modems 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 32te...

Page 18: ...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 increased further by...

Page 19: ...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 310...

Page 20: ...Module back card 1 x AccessBuilder 7000 Triple Modem Module User Guide This manual 1 x AccessBuilder AT Command Reference guide 1 x warranty registration card It is important that you save the box an...

Page 21: ...y module s and the Management Controller Module if required 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 inst...

Page 22: ...1 8 CHAPTER 1 TRIPLE MODEM MODULE...

Page 23: ...how to connect to your DTEs and PSTN lines and how to read the LEDs on the module s front panel Ensure you read the safety information at the front of this guide before commencing installation of the...

Page 24: ...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 i...

Page 25: ...ssis 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 en...

Page 26: ...n 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 chas...

Page 27: ...s lifted any noise in the surrounding area interferes with the data and can cause corruption in the transferred data Private Line 2 4 6 The lower RJ45 connection in each pair connects to a private lin...

Page 28: ...ured to act in different ways on receipt of this signal according to the AT D and AT M commands See AccessBuilder 7000 AT Command Reference for more information LINE On Line Indicates that the selecte...

Page 29: ...unning a test This may have been initiated either 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 ind...

Page 30: ...2 8 CHAPTER 2 INSTALLATION AND OPERATION...

Page 31: ...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...

Page 32: ...DCD using the AT C0 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 M or AT Q command d...

Page 33: ...es 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 t...

Page 34: ...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...

Page 35: ...e 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 c...

Page 36: ...n Check that one modem is configured for answer mode and the other is configured for originate mode Check that both modems are using the same modulation scheme Dial Backup Operation Modems do not esta...

Page 37: ...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 30...

Page 38: ...RTS CTS delay dependent on modulation format Equalizer Automatic adaptive equalizer Error correction V 42 LAPM and MNP4 Data compression V 42bis and MNP5 Autodial Autoanswer Method Pulse dial 10 pps r...

Page 39: ...usy 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 remot...

Page 40: ...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 condition...

Page 41: ...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 f...

Page 42: ...eration in the absence of proceed indication Automatic dialling facilities Tone detection for example ring tone busy tone Automatic answering of incoming calls Automatic clearing from call originating...

Page 43: ...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 as...

Page 44: ...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 X 21 V 11 The DTE port terminates with a 26 w...

Page 45: ...y miniature SCSI connector The port can be configured to support V 24 or V 28 signalling characteristics The DTE port connecting cable is not supplied with the module The following signalling characte...

Page 46: ...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 sign...

Page 47: ...essed via the appropriate DIAL 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 communicatio...

Page 48: ...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...

Page 49: ...eek 24 hours a day through the following on line systems 3Com Bulletin Board Service 3ComBBS World Wide Web site 3Com Bulletin Board Service 3ComBBS contains patches software and drivers for all 3Com...

Page 50: ...ws 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 Country Data Rate Telephone...

Page 51: ...including network planning installation hardware maintenance application training and support services When you contact your network supplier for assistance have the following information ready Diagn...

Page 52: ...l free Country Telephone Number Country Telephone Number Australia Sydney 61 2 959 3020 Japan 81 3 33457251 Melbourne 61 3 653 9515 Mexico 525 531 0591 Belgium 0800 71429 Netherlands 06 0227788 Brazil...

Page 53: ...on 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 11 29 95 Country Telephone Number Fax Num...

Page 54: ...B 6 APPENDIX B TECHNICAL SUPPORT...

Page 55: ...2 5 CORR LED 2 6 D DTE ports 2 5 F features 1 2 front card installation 2 4 I installation 2 2 front card 2 4 prerequisites 1 7 rear card 2 3 L LED selection button 2 7 LEDs front panel 2 6 LINE LED 2...

Page 56: ...ND 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...

Page 57: ...or 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 ma...

Page 58: ...CTION WITH THE SALE INSTALLATION MAINTENANCE USE PERFORMANCE FAILURE OR INTERRUPTION OF ITS PRODUCTS EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND LIM...

Page 59: ...t 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 re...

Page 60: ......

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