ATL AM64/128A Manual de usuario

AM64/128ABASE BAND MODEMUSER MANUALATL Part No. 1/203/002/610Issue 4 - September 2002.

AM64/128A User Manual Installation10Set the line rate (section 5.7.2) as required at both ends, and set the user data rate up on the master(section 5.

Installation AM64/128A User Manual114.2 BBM to Line Card LinkPower up the BBM as described previously, and set the modem to slave mode.Set the line ra

Menu Operation AM64/128A User Manual125. MENU OPERATION5.1 Front Panel FeaturesThe Baseband Modem has an uncluttered and easy to understand front pan

AM64/128A User Manual Front Panel Operation135.2 Front Panel OperationThe LCD will display one of five menus at any one time, these menus are:1. STATU

Status Menu AM64/128A User Manual145.3 Status MenuThe status menu is read only, which means the select button has no effect. It provides the following

AM64/128A User Manual Alarm Status155.3.2 Alarm StatusThe possible messages for this item are:S > No AlarmS > No SignalS > Receiving AISS &g

Status Menu AM64/128A User Manual165.3.3 User RateThis item displays the user rate in current use. A complete list is given in section 5.5 - Rate Men

AM64/128A User Manual Menu Operation - Status Menu175.3.6 Operating ModeThe BBM is capable of operating in two basic modes:S > Link Mode S > Ne

Menu Operation - Test Menu AM64/128A User Manual185.4 Test Menu1. Local loop2. Loop back3. Remote loop4. Binary pattern5. Data error test6. In service

AM64/128A User Manual Test Menu19With a G.703 Interface fitted, the application of a local loop will cause G.703 data to be looped back tothe G.703 ne

AM64/128A User Manual2THE INFORMATION CONTAINED INTHIS DOCUMENT IS CONFIDENTIAL TOATL TELECOM LTD. AND MAYNOT BE DISCLOSED OR REPRODUCED IN WHOLEOR IN

Test Menu AM64/128A User Manual20With a G.703 interface fitted, the application of a loopback will apply a loopback to line at the remoteslave unit (k

AM64/128A User Manual Test Menu215.4.3.2 Remote loop from DTEWhen the BBM receives an ART pattern (00110011) from the DTE (in X.21), or when circuit 1

Test Menu AM64/128A User Manual225.4.5 Data Test5.4.5.1 OverviewThis mode allows the user to send a binary 0's pattern to the remote BBM and moni

AM64/128A User Manual Test Menu23The Data Test can be used to test the performance of a link (0 or 1 patterns on the two wire line are allAMI encoded

Test Menu AM64/128A User Manual242/ Pattern displayThe pattern display usually shows Injecting 0sPressing SELECT will cause binary 1s to be injected

AM64/128A User Manual Test Menu255.4.6 In Service Test5.4.6.1 OverviewThis mode allows the error performance of the line to be monitored, without int

Test Menu AM64/128A User Manual265.4.7 Lamp TestThis facility is used to check the LED’s and the LCD display.To activate the test choose the item T

AM64/128A User Manual Test Menu27However, the usage of the EEPROM (Blocks Used) is still displayed for information.For example:000 means that the fir

Menu Operation - Rate Menu AM64/128A User Manual285.5 Rate MenuThe rate menu is only accessible in master mode. In slave mode the user rate is dictate

AM64/128A User Manual Rate Menu29The Rate menu operates slightly different when 64k mode is activated. It is described more fully in theConfiguration

Contents AM64/128A User Manual3CONTENTS1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menu Operation - Option Menu AM64/128A User Manual305.6 Option MenuThis menu displays the type of DTE interface currently fitted in the BBM. The AM64

AM64/128A User Manual Menu Operation - Option Menu31(3) O > 107 Normal Press SELECT: O > 107=108/1This allows control line 107 to follow cont

Menu Operation - Option Menu AM64/128A User Manual325.6.6 Character LengthScrolling down further gives the display: O > Char Len: 8Pressing SELEC

AM64/128A User Manual Menu Operation - Configuration Menu335.7 Configuration MenuThis menu contains the items that are used in the initial configurat

Configuration Menu AM64/128A User Manual345.7.3 X.21 Loop ControlThis facility is designed for when a pair of BBM’s are used as an extension to anoth

AM64/128A User Manual Configuration Menu355.7.4.1 Synchronisation Type (for software version V1.3 and above)With these later versions of software, th

Configuration Menu AM64/128A User Manual365.7.5 64k ModeThis mode is designed to be used in association with the X.50 framing patterns. When the mode

AM64/128A User Manual Glossary37GLOSSARY OF TERMSAIS Alarm Indication Signal.ALT Automatic Local Test. - Pattern sent to apply a local loop in the DCE

Glossary AM64/128A User Manual38V.24 CCITT specification. List of definitions for interchange circuits between DTE and DCE.V.28 CCITT specification. E

AM64/128A User Manual Specifications39GENERAL SPECIFICATIONSTransmission system uses DSP techniques involving echo cancellation and adaptive decision

AM64/128A User Manual Contents45.6 Option Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305.6.1 X.21 .

AM64/128A User Manual Appendix A - Interface ConnectionsA-1APPENDIX A - Interface Pin Connections25 Way D - type X.21 bis (V.24 / V.28*) Connector pin

Appendix A - Interface Connections AM64/128A User ManualA-2V.35 (MRAC) Connector Pin allocationNote: Circuit 108/1 is not available on the connector a

AM64/128A User Manual Appendix A - Interface ConnectionsA-325 Way D-type RS-530 Connector pin allocation*Standards dictate that the control circuit 10

Appendix B – Internal Link Settings AM64/128A User ManualA-4APPENDIX B – Internal Link Settings

AM64/128A User ManualA-5The function of the links is as follows:J1 Transmission disableThis link is always left in position 1-2J11 Watch dog enableThi

AM64/128A User Manual Appendix B – Internal Link SettingsA-6Interface ModulesX.21 Interface Module:J1 - X.21 T (Transmit data) Circuit Termination – T

AM 64/128A User Manual Appendix B – Internal Link SettingsA-7Interface Modules:RS530 Interface Module:J1 – V36 and RS530 Circuit 103 (Transmit data) C

Appendix C - In Service Test AM64/128A User ManualA-8APPENDIX C - In Service TestBACKGROUND INFORMATIONThe information passing between master and slav

AM64/128A User Manual Appendix C - In Service TestA-9It must be remembered that this error count is unidirectional only. There can be no looping of th

Appendix D - Approvals AM64/128A User ManualA-10APPENDIX D - ApprovalsLVD - Safety Statements:Power Rating Information - AC Source:1. Voltage Range: 2

Introduction AM64/128A User Manual51. INTRODUCTIONThis manual applies to the AM 64/128A Baseband Modem. This modem is manufactured in the U.K. byATL T

Appendix E - Private digital circuits AM64/128A User ManualA-12APPENDIX EUse on X.21/X.21bis digital circuits - External Timing ConfigurationThe detai

AM64/128A User Manual Appendix E - Private digital circuitsA-132. X.21 byte timing cable - (15 way to 15 way D type plugs).3. V.24 / V.28 bit timing c

Appendix E - Private digital circuits AM64/128A User ManualA-145. X.21 bis V.36 bit timing cable - (37 way to 37 way D type plugs).* In some cases it

AM64/128A User Manual Appendix F - TroubleshootingA-15Appendix F - TroubleshootingPlease check the following points if problems are encountered when s

Appendix F - Troubleshooting AM64/128A User ManualA-16In some environments, the external timing input (SEXT on X.21 or circuits 113 on the X.21 bis in

AM64/128A User Manual

Constructional Details AM64/128A User Manual62. CONSTRUCTIONAL DETAILS2.1 Baseband ModemsThe BBM is housed in a black plastic case. On the front panel

System Overview AM64/128A User Manual73. SYSTEM OVERVIEWThe AM64/128A baseband modem uses the digital transmission system designed and developed by AT

AM64/128A User Manual System Overview8The interface circuit performs a number of functions : it converts between the user data from theappropriate int

Installation AM64/128A User Manual94. INSTALLATIONThis chapter describes the basic steps that are required to set up a system involving the Baseband M