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AT&T 3.0 manual Safety Xviii Installation

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Troubleshooting Install Error codes Tie Trunk Signaling Password Check the Error Logs Connecting Data Equipment Warranty Maintenance Data Station Configurations

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Safety

xviiiInstallation

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AT&T 3.0 manual Safety Xviii Installation

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Contents

AT&T Security of Your System Preventing Toll Fraud WarrantyCopyright 1994, AT&T All Rights Reserved August TrademarksContents Connecting the Control Unit to the Network Interface Installing the PC, CAT, or Printer Installing Applications Unit Load Calculation Worksheet Figures MFM Connecting the Control Unit to the Network Interface Installing the PC, CAT, or Printer Ground-Start Button Tables Merlin Mail Ports Required Important Safety Instructions Page Safety Safety Xviii Installation How to Use This Book Intended AudienceXx Installation Terms and Conventions Used Lines, Trunks and FacilitiesProduct Safety Labels Example PurposeSecurity Related Documents System DocumentsHow to Comment on This Document AT&THow to Comment on This Document Xxvi Installation Merlin Legend Communications System Release Order No -630-140 Date AugustInstallation Sequence IntroductionSystem Forms Installling the Control Unit Installing Telephones Required Adjuncts OptionalConnecting the Network Interface Connecting Data Equipment Programming the SystemUpgrading the System Installing the Control Unit OverviewEnvironment Electrical Noise/Radio-Frequency Interference Control Unit RequirementsHardware Preassemble Process Backboard RequirementsAC Power and Grounding Installing the BackboardPage AC Grounding Requirements AC Power Requirements Parameter Value Using an Ideal 61-035 Circuit Tester or EquivalentUnplug the circuit tester Measuring the AC Outlet VoltagesGrounding Requirements Central Office and AC Grounds Approved Grounds Central Office Trunk Protection Heavy Lightning Protection Installing 146A and 147A Protectors Unit Loads for Hybrid/PBX Mode Unit LoadsChecking Unit Loads Installing the Basic Carrier Unit Loads for Key or Behind Switch ModeAuxiliary Power Units Marking the Basic Carrier Screw Holes Installing the Power Supply Turning Off the Power Installing a Copper ShieldInstalling the Power Supply Installing a Copper Shield in the Power Supply Installing the Power Supply Module Carrier Installing the Ferrite CoresInstalling the Ferrite Cores Installing the Auxiliary Power Unit Installing an Auxiliary Power Unit Installing Expansion Carriers Connecting the Carriers Installing the Processor Installing the Processor in the Carrier Push firmly until the processor snaps into place10. Installing the Processor into the Carrier Installing the Modules GuidelinesInstalling Modules Signaling Types Tie Trunk SignalingSignaling Modes Tie Trunks400EM Tie Trunk Module DIP Switches Simplex ModeMode Signaling Formats for the 400EM Tie Trunk Module Merlin11 EM Module Sample Dip Switch Settings for Signaling Types Labeling 12. Line/Trunk and Telephone Jack Locations on Each Module Replacing a Module Installing the Control Unit 13. Removing Modules from the Carrier Connecting the Control Unit to An AC Outlet Powering Up the System Turn on the power switch on the basic carrier power supplyPowering Down the System Unplug the system from the AC outletPowering Down the System 46Installing the Control Unit Installing Telephones Adjuncts Installing Multi-Function ModulesConsiderations Risk of Electrical Shock Follow all warnings and cautions Removing the User Card Tray and Line Cable Releasing the Deskstand Removing the Deskstand Releasing the Module Cover Screw Release and remove the module cover. See -5, -6,and FigureReleasing the Module Cover Removing the Module Cover Removing an MFM Module Installing an MFM Module Install the new MFM. See FigureMulti-Function Module 11. Removing the Jack Guard To remove the jack guard, see Figure12. Placing the Module Cover into the Locating Slot To replace the module cover, see -12, -13,and Figure13. Lowering and Locking the Module Cover 14. Replacing and Tightening the Module Cover Screw 15. Replacing the Deskstand 16. Lowering the DeskStand and Locking into Place 17. Replacing the User Card Tray and Line Cable Replace the user card tray and line cable. See FigureAdjust the deskstand height. See Figure Power up the telephone. See Figure19. Powering Up the Telephone after Installing the MFM Attach the adjunct to the MFM. See Installing Adjuncts Test the MFM for T/R operation20. Routing the Cords Through the Cord Channel To connect an adjunct to a single-line telephoneGeneral Purpose Adapter To connect an adjunct to an analog multiline telephoneDial Dictation Devices Group Calling Delay Announcement Devices Fax MachinesCredit Card Verification Terminals Headsets HeadpiecesManual Operation Analog Multiline Telephones Only One-Touch Operation All TelephonesLoudspeaker Paging Systems 21. Manual and One-Touch Headset OperationDual-Tone Multifrequency Dtmf Signaling 22. Single-Zone Paging with PagePac Plus 23. Single-Zone Paging with Customer-Supplied Amplifier 24. Single-Zone Paging with Upam Merlin Identifier ModemsMusic On Hold and Magic on Hold 36Installing Telephones and Adjuncts Music Port Supplemental Alerts Supplemental Alert Adapter27. Installing the Supplemental Alert Adapter Unsupported Telephones, Adjuncts AdaptersSingle-Line Telephones Unsupported Telephones and Adjuncts ModelSingle-Line Telephones Description Single-Line Telephones in Release 3.0 and Later Installing Direct Station Selectors Adjust the angle of the DSS Install the D8AC cord on the DSSWire the two DSSs. See Figure 28. Connecting One or More DSSs Wire the telephone to the DSS units. See Figure29. Wiring for Auxiliary Power Label the DSS designation cards Assembling MLX Telephones Considerations30. Adjusting or Removing the Deskstand Remove or adjust the deskstand. See Figure31. Connecting the Line Cords Connect the line cords. See FigureConnect the handset Label the extension identification card33. Labeling the Extension 34. Removing the Handset Holder Prepare the handset holder for wall-mountingReplace the extension label and plastic cover Wall mounting an MLX-10, MIX-10DP, or MlX-10D telephone37. Mounting the Backplate 38. Routing the Cord Through the Backplate Label the button assignment cardAdjust the contrast on the telephone% display Installing Cordless or Cordless/Wireless TelephonesMDW 9000 Cordless/Wireless Telephones MDC 9000 Cordless TelephoneConnecting Telephones To the Control Unit Installing Telephones and Adjuncts Wiring a Telephone for Two Voice Pairs Even D8W Removing Damaged Connecting Blocks Remove the wires or the patch cord from the connecting block40. Removing the Connecting Block Page Connecting the Control Unit to Network Interface Wiring Network Interfaces Description AdapterDid RJ21X Interface RJ21X Network Interface Connector Building the Wiring Field RJ21X Wiring Field HardwareRJ21X Wiring Field Tools Using the D-Impact Tool to Seat the Conductors See Labeling Trunks, later in this chapter, for instructions RJ11 and RJ14 Interfaces RJ11 and RJ14 InterfacesRJ2GX Interface Testing Trunks Testing Loop-Start TrunksRJ48C/X Interface Testing Ground-Start Trunks Installing the Channel Service Unit Labeling TrunksAcculink CSUs Page 3150 Front Panel Page Installing the PC, CAT, or Printer Connecting a PC to the Control UnitConnecting a PC Within 50 Feet Connect the D8W cordConnecting a PC Within 50 ft .2 m Connecting a PC More Than Feet 15.2 m Away Page Connecting a PC More Than 50 ft .2 m Away Connecting a CAT To the Control Unit Connecting a Printer To the Control Unit8Installing the PC, CAT, or Printer Connecting a CAT and Printer On the Same AC Outlet Connecting a CAT and Printer on a Different AC Outlet Connecting a CAT and Printer on the Same AC OutletPage Page Merlin Smdr Page Connecting a Printer Within 50 Feet 15.2 m Connecting a Printer Within 50 ft .2 m Connecting a Printer 50 Feet Or More Away 18Installing the PC, CAT, or Printer Connecting a Printer More Than 50 ft .2 m Away Connecting the 24813 Adapter and the 201213 Transformer Setting Printer Options and DIP Switches AT&T 572 Printer Options Function Menu Status On nextFunction Menu Status BPSAT&T 475/476 Printer DIP Switch Settings SwitchAT&T CAT Printer DIP Switch Settings Control Switch DIP 2-CMPage Connecting Data Equipment Data StationsData Station Configurations Telephone GPA orStation For voice Modem Data Stations 7500B Data Stations GPA Settings Setting UpAnalog Voice and Modem Data Stations Connect the modem to the GPA Connect the GPA to the analog multiIine telephoneAnalog Voice and Modem Data Equipment Configuration Modem Data-Only Stations Connect the modem to the control unitModem Data-Only Equipment Configuration Modem Data and MLX Voice Equipment Configuration MLX Voice and Modem Data StationsConnect the modem to the MFM in the MLX telephone Connect the MLX telephone to the control unitMLX Voice and 7500B Data Stations MLX Voice and 7500B Data Equipment Configuration Connect the 7500B data module to the control unit7500B Data-Only Stations B Data-Only Equipment Configuration Video Conferencing Data Stations Acculink 3150 CSUPage Video Conferencing Configuration Page 7500B Data Module and CSU Settings B Data Module Settings KbpsInitializing and Testing System Initializing the SystemRestoring from the System Programming Disk Programming GuidesRestoring from the Translation Memory Card Perform a System Erase frigid startSetting the Time and Date Testing the SystemTesting MLX Telephones Page Hang up the handset to leave test mode Testing MLX Display TelephonesTesting MLX Telephones with MFMs Press the unlabeled display buttonsHang up Testing Telephones for Dial ToneTesting Telephones for Outside Dial Tone Turn off the Message lightTesting Analog Multiline Single-Line Telephones Testing did Trunks Dial *03 followed by the trunk ID number 01 throughTesting Tie Trunks Testing Two-Way Automatic-Start Tie TrunksTesting Incoming Automatic-Start Tie Trunks Testing Outgoing Automatic-Start Tie Trunks Testing Outgoing Dial-Repeating Tie Trunks Testing Two-Way Dial-Repeating Tie TrunksTesting Incoming Dial-Repeating Tie Trunks Verify that you have good two-way communication and hang upTesting Selected System Features ARS and Smdr Tests Group Calling TestSystem Speed Dial Test Coverage TestTesting the DSS Testing Night ServiceTesting the Dictation System Testing the Paging SystemTesting Music On Hold Make an announcement into the handsetHang up Repeat Steps 1 through 3 for all paging zones Testing the Power Failure Transfer Jacks Ground-Start ButtonTesting Touch-Tone Receivers Have that person call the number after you hang upIf you hear reorder tone, try again Installing the Control Unit’s Housing Installing the Top CoverRepeat the test for each TTR Top Cover Installing the Front Cover Installing the Control Unit Front CoverInstalling Applications Voice Messaging Systems Touch-Tone Receivers Automated Document Delivery System Call Accounting System Hardware RequirementsHardware and Software Requirements Page Call Accounting Terminal CAS Documentation8Installing Applications Call Management System CAT DocumentationHardware and Software Requirements CMS Documentation Conversant ConsiderationIntegrated Solution Conversant Intro DocumentationHardware Requirements Installing Applications AT&T Attendant Merlin Mail Merlin Mail Ports Required Number of Jacks RequiredConsiderations Hardware Requirements Merlin PFC Behind Switch Mode Hybrid/PBX and Key ModesPassageWay Direct Connect Solution Hardware Requirements System Programming Maintenance SPM Hardware Requirements Page Upgrading the System Removing the Control Unit Housing Removing the Control Unit Housing 4Upgrading the System Powering Down the System Upgrading the Control Unit Install any expansion carriersInstall or replace any modules Replace the processor module. See FigureReplacing the Housing Clips Remove the housing clips from the right side of the moduleBeware of hazardous voltages Replacing a Module in the Carrier Modifying the Processor For Key Mode Removing the Processor Module Cover Removing the Processor Module Circuit Board Changing the Key Mode Switch Position to Closed Completing the Upgrade Install SPM Backup system programmingInstall SPM Convert the backup fileIf applicable, program new features Remove the control unit housingReplace the control unit housing Release 2.0 or EarlierProgram the system Installing the Control Unit Housing Completing the Upgrade 18Upgrading the System System Numbering Forms Form 2a, System Numbering Extension Jacks Figure A-1. Form 2a, System Numbering Extension JacksPage Form 2b, System Numbering Digital Adjuncts Figure A-2. Form 2b, System Numbering Digital AdjunctsForm 2c, System Numbering Line/Trunk Jacks Figure A-3. Form 2c, System Numbering Line/Trunk JacksForm 2d, System Numbering Special Renumbers Figure A-4. Form 2d, System Numbering Special RenumbersUnit Load Calculation Worksheet Unit Load Worksheet Module Qty Unit Load = Total DidTelephones Network Access LinesQty Equipment Unit Load Hybrid/PBX or Modified = Total SquareOptional Equipment Page DS1 GS/LS Qty Unit Load = Total Hybrid/PBX or Modified Square Page Unit Load Calculation Worksheet 10Installation Index IN-2Installation Installation IN-3 IN-4Installation Installation IN-5 IN-6Installation Installation IN-7 IN-8Installation Installation IN-9 Index IN-10Installation Maintenance and Troubleshooting Copyright 1994, AT&T All Rights Reserved AugustContents Error Logs, Access Logs, and System Inventory Central Office Problems GL Glossary Index Figures Backing Up with a Memory CardChapter Name Function of PC Keys in SPM Tables LMPORTANT Safety lNSTRUCTlONS Page Safety Safety Xiv Maintenance and Troubleshooting About This Book Terms and Conventions Used Typographical Conventions On nextProduct Safety Labels Telephone User Support Document No. TitleSystem Documents System operator SupportDocument No Title Miscellaneous User SupportDocumentation for Qualified Technicians Feedback Form Maintenance Terminal EquipmentTools On-Site Programming Maintenance Setting Up the MLX-20L ConsoleMLX-20L Failure Figure l-l. Setting Up the MLX-20L Console Setting Up the PC Setting Up the PCRemote Programming Maintenance Setting Up Equipment for Remote Maintenance Connect the PC and modemWith a Direct Local Connection Using SPMStarting SPM Press any keyWith a Local or Remote Modem Connection When you hear the modem tone, hang upEnter the password Dialing the System OperatorDialing the Modem Directly Console Display/Instructions Select an optionSPM Display SPM DisplayFunction of PC Keys in SPM Console SPM Function Conf←Bksp Preparation for Hardware Maintenance Removing the Control Unit HousingExiting SPM 16Introduction Disconnecting AC Power Disconnecting AC PowerMaintenance Strategy Maintenance StrategyAlarms Trouble ReportsAutomatic Tests Clearing Alarms System RestartsWarm Start Cold Start RestartFrigid Start System Erase Check Telephone Problems Check the Error LogsIsolating the Trouble Trouble Accessing the Error Logs Check the Access LogCheck the power supply LED Check the Modules Check the Power SupplyCheck the Processor Check the Control Unit CarrierEscalating the Problem Check the TrunksCheck the Central Office Unit Loads for Hybrid/PBX Mode Unit Loads for Key or Behind Switch ModeChecking Unit Loads 28Introduction Error Logs, Access Logs, System Inventory Error LogsMore → More → Error Log Checking the Error LogsTransient/Permanent Error Thresholds Code Error Description SummaryFrom the Maintenance menu, select the System option Select Error LogSelect an error log option Checking Transient Errors Console Display/Instructions Additional Information PCChecking the Last 10 Errors Interpreting Error CodesError Codes Action Description 000lError Action Codes Description Start8Error Logs, Access Logs, and System Inventory Error Codes Description Action Full10Error Logs, Access Logs, and System Inventory 6COA DS1 PRI B-CH Group Inconsist Error Codes Descrption Action 7404Not in Standby Mode Miscellaneous Error On Hook Before Ready 840D Incorrect Firmware State Access Log Reviewing the Access LogDisplay the first screen of the Access Log Scanning the LogSystem Inventory MoreReviewing the Screen Select the Inventory optionPhantom Modules Xx = slot number entered in StepTelephone Problems Fixing Telephone Problems General Telephone and Wiring ProblemsTroubleshooting Telephone Problems Symptom Section Check the LEDs on the module Move the T/P switch to its normal position Analog Multiline Telephone ProblemsVoice Transmission Problems If the LEDs do not light, retest the original telephoneSingle-Line Telephone Problems Call Forwarding ProblemsMLX Telephone Tests LEDs should toggle on and off System Requirements For Touch-Tone Receivers If these tests fail, replace the MFMMLX Telephone Display Buttons System Requirements for Touch-Tone Receivers Modules with TTRs No. of TTRs Control Unit Problems Backing Up System ProgrammingPower Supply Problems Checking the Power SupplyChecking the LED Checking the Interlocking Post Power Supply Interlocking Post Replacing the Ring GeneratorPEC and Apparatus Codes for 012 Modules App. Code6Control Unit Problems Replacing a Ring Generator Replacing Auxiliary Power Units Replacing an Auxiliary Power Supply Replacing the Power Supply Power down the systemInsert a new power supply Processor Problems PeekFrom the Maintenance menu, select the Slot option Specify SlotSelect the Demand Test Select the Peek option Dial a memory addressPoke ContinueConsole Display/Instructions Additional Information Select Poke two timesSelect Continue System Erase Frigid Start Select System Erase twice Forced Installation of System Software Select YesMenu →Maintenance →System → Inserting a Memory Card Initiate the software installation Select Upgrade/installObserve the memory card validation screens MemCard Rel Vnn.mm Current If the release number is the one you want, select Yes Error Conditions During Forced Installation Restore system programmingProcessor Problems Missing Card or Card Not Inserted Correctly Memory Card Is Wrong TypeMemory Card Is Corrupt Removal of Memory Card During Installation Other Error ConditionsPower Cycle During Installation System BusyPressing hidden key two times will delete existing program Install the new processor module Power up the system Replacing the Processor ModuleIf possible, save system programming Replacing the Feature Module Replacing the Feature Module Module Problems Module TestsModule Test Process Module Test ProcessSystem Components Busy-Out/ResetPower supply Test NotesRun the board controller test Busy-out or reset the moduleRun the internal Ioopback test For 100D modules, continue with the CSU Ioopback testPersistent Module Problems Busy-Out and ResetBusy-Out Summary Specify the slot number n=00 toConsole DispIay/Instructions Select Busy-OutReset Summary Console Display/Instructions Additional Information P CSelect Reset Specify the slot number nn = 00 toRestore Enter →Restore →Yes Specify the slot number n= 00 toSelect the Restore option Internal Loopback Test Menu →Maintenance →Slot Specify the slot number nn = 00 to Select Demand TestSelect Internal Loopback Test Interpreting Test Results Screen below smearsIRestoring the Module Slot empty or not validBoard Controller Test Select the Board Controller Test Select Test Once or Repetitive Board aaaaaaaaaaaaaaaaaChannel Loopback Test Summary From the main menu, select the Slot option Specify the MLX module’s 2-digit slot number nn = 00 toSelect the B-Channel Loopback test Screen below appears only if the test fails Channel Loopback Errors Error Messages Corrective Action Replacing ModulesTo replace a module, follow the steps below Checking Unlabeled Wiring Upgrading Circuit Module Firmware Summary Inserting the Upgrade Memory Card Select Upgrade Specify the slot number nn =00 toModule Problems Screens below appear during the procedure Observe the status screen below Error Conditions During Firmware Upgrade Memory Card In Use By Another FeatureModule Cannot Be Upgraded Module Error Select Exit and reinitiate the upgrade procedureMemory Card File Error Flash ROM Fails to EraseXx = slot selected in Step 100D Module Problems Upgrade Attempted on an Empty SlotBoard Memory Programming Failure Error Events CSU Loopback TestBusy-out the 100D module Prepare the CSU 551 T1 CSU Loopback Connection ESF T1 CSU DTE Loopback Connection U E S F A t T e x t C n f i gS t P b k L p b k P t r n s O p b a c k O r t L L B P L B O p b a c kLLB PLB DLB Specify the 2-digit slot number Nn = 00 to Select the CSU Loopback TestScreen below appears when the test fails Fmwr not in Standby Node Automatic Tests for the 100D Module 100D Module Error Events Select Error Events Specify the 2-digit slot number nn= 00 toSelect the current hour or a previous hour 100D Module Clock Status Enter →Clock →ExitFrom the Maintenance menu, select. the Slot option Select ClockCarrier Problems Removing the Faulty CarrierUnplug the control unit from the AC outlet Checking System and Slot Status Replacing the CarrierSystem Status Select Status Yellow LED Interpreting the System Status ScreenRed LED Green LEDSlot Status →Enter →StatusSelect the Status option F10LED Checking System and Slot Status 92Control Unit Problems Trunk Errors Troubleshooting Trunk ProblemsManual Correction of Trunk Problems Troubleshooting Trunk Symptoms SectionOutgoing Trunk Problems Check for outside dial tone at the network interfaceIf the module continues to malfunction, replace it Maintenance-Busy Status Incoming Trunk ProblemsTesting Trunks Automatically Place an incoming call through the troubled trunkPermanent Errors Maintenance-Busy CausesLoop-Start LS Trunk Maintenance-Busy ProgrammingGround-Start GS Trunk TieTrunkChecking Trunk Maintenance-Busy Status Summary Checking PortsFrom the Maintenance menu, select the Port option Select the Line/Trunk OptionSelect Next to see the status Checking Extension Maintenance-Busy Status SummarySelect trunk Status Xxx = line number entered in Step Next trunkSelect the Station extension option Busying-Out a Trunk Summary Specify the dial plan number line for the trunk nnn = 801 to Busying-Out an Extension Summary 14Central Office Problems Screen below appears when Busy-Out is completed successfully Restoring a Trunk Summary Additional Information Restoring an Extension Summary Select Restore PC Procedure Resetting an RS-232 PortConsole Procedure → F1 → F3Specify the RS-232 port Resetting the Processor’s Internal Modem Summary Select the Modem option Screen below is shown until Reset fininshes or fails Auditing DS1 PRI B-Channels Auditing Lines SummarySelect the B-Channel option Select Audit Line Auditing Calls Summary Select Audit Call Conclusion of Hardware Maintenance Installing the Control Unit Housing Release 2.1 or LaterTo install the front cover, see -2and follow these steps Installing the Control Unit Top Cover Release 2.1 and Later Conclusion of Hardware Maintenance Front cover Installing the Control Unit Housing Release 2.0 or Earlier Assemble the control unit housing. See FigureAssembling the Control Unit Housing Release 2.0 and Earlier Installing the Control Unit Housing Release 2.0 and Earlier Customer Support Information Support Telephone NumberCustomer Support Information FCC Notification and Repair Information Page Installation and Operational Procedures DOC Notification and Repair Information DOC Certification No 4095A CSA Certification No. LR Load No Customer Support Information Maintenance and Troubleshooting A-9 10Maintenance and Troubleshooting Security of Your System Preventing Toll Fraud Page Limited Warranty Limitation of Liability 14Maintenance and Troubleshooting Voice Mail Systems Limitation of LiabilityPage Remote Administration Maintenance Page Figure B-1 Figure B-1. Form 2a, System Numbering Extension Jacks Page Figure B-2. Form 2b, System Numbering Digital Adjuncts Figure B-3. Form 2c, System Numbering Line/Trunk Jacks Figure B-4. Form 2d, System Numbering Special Renumbers Unit Load Calculation Worksheet Unit Load Worksheet MLX Network Access Lines Optional Equipment Page Telephones Unit Load Calculation Worksheet Page Page Backing Up with a Memory Card Card Types Figure D-1. Pcmcia Transition Memory Card Inserting the Card Figure D-2. Inserting the Memory CardMemory Card Formatting Unformatted CardFormat Warning Backup Summary BackupProcedure Backup Select Back/Restore Select BackupSelect the System menu Select the backup filename Rename the backup file n = 1 to 11 charactersSave your entry Observe the backup progress screen Observe the backup completion screenRespond to the prompt Automatic Backup Summary Automatic BackupProcedure Automatic Backup Select Auto BackupMake a selection Select OffDaily Backup Procedure Erase the current daily backup timeBackup Messages Erase the current weekly backup day and timeBackup Canceled Card Removed While Backup Is in Progress= backup filename Card Missing or Card Not Inserted Correctly Card Is Write-ProtectedCard Failure Summary Restore Procedure Restore Select RestoreSelect the restore file Observe the restore file validation screenObserve the restore progress screen Restore Messages Card Missing or Card Not Inserted CorrectlyCard Removed after Confirmation Wrong System Programming PortRelease Mismatch Card Failure after ConfirmationWrong Type of Card Board MismatchStrap in Place for Key Mode but Mode is Set To Hybrid Modifying a Release 2.1 or Earlier Processor for Key Mode Release 2.1 and EarlierFigure E-1. Modifying the Processor for Key Mode Installing the Control Unit Housing Release 2.1 and Earlier Figure E-2. Installing the Control Unit Housing Adds ALSARS AMIANI AscapTransmission AT&T Switched Network Audix Voice PowerAsynchronous data AT&T AttendantB8ZS BIS Board assignment Board renumbering Bus Button Byte CAS CATCCS CMS COR CRCCSU DCE DFTDHG Did DOS DLCDnis DS0DSS DTE EIAESF ESSFCC General-Purpose Adap See GPA Glare Frame Framing format frequency generatorFRL GPAHfai HFUIclid II/III Isdn 7500B Data Module Kbps Key modeIsdn JackLAN LDNLED Logical ID AccessLocal loop Loop-start trunkMFM MLX-10 or MLX-10D telephoneMLX-10DP Glossary OPT OPXPBX PFT PRIQCC RAMSDN ROMSAA SIDSlot Simplex signalingSingle-line telephone SmdrSupplemental Alert See SAA Adapter System acceptance test System Access buttonsProgramming Maintenance System dateTDM TTRVDC UPSVAC VMIMaintenance and Troubleshooting IN-1 IN-2Maintenance and Troubleshooting Maintenance and Troubleshooting IN-3 IN-4Maintenance and Troubleshooting Maintenance and Troubleshooting IN-5 Index