Page 1 AT&T 555-640-140 Issue 1 March 1996 MERLIN LEGEND ® Communications System Releases 3.1 and 4.0 Maintenance and Troubleshooting...
Page 2: Federal Communications Commission Statement
Copyright 1996, AT&T AT&T 555-640-140 All Rights Reserved Issue 1 Printed in U.S.A. March 1996 Notice Every effort was made to ensure that the information in this book was complete and accurate at the time of printing. However, information is subject to change. See Appendix A, “Customer Support Information,”...
Page 3: Ordering Information
Ordering Information Call: AT&T GBCS Publications Fulfillment Center Voice 1 800 457-1235 International Voice 317 361-5353 Fax 1 800 457-1764 International Fax 317 361-5355 Write: AT&T GBCS Publications Fulfillment Center P.O. Box 4100 Crawfordsville, IN 47933 Order: Document No. AT&T 555-640-140 Comcode: 107713737 Issue 1, March 1996 For more information about AT&T documents, refer to the section entitled, “Related Documents”...
Page 4: Table Of Contents
Contents About This Book Intended Audience xvii How to Use This Book xvii Terms and Conventions Used xviii Product Safety Labels Security Related Documents xxii How to Comment on This Document xxiii Introduction Equipment 1–1 On-Site Programming Maintenance 1–3 Remote Programming Maintenance 1–6 Using SPM 1–8...
Page 5 Contents Telephone Problems Fixing Telephone Problems 3–2 MLX Telephone Tests 3–6 System Requirements for Touch-Tone Receivers 3–8 Control Unit Problems Backing Up System Programming 4–1 Power Supply Problems 4–2 Processor Problems 4–12 Module Problems 4–33 800 NI-BRI Module Problems 4–74 100D Module Problems 4–92 Carrier Problems...
Page 6 Contents Customer Support Information Support Telephone Number A–1 Federal Communications Commission (FCC) Electromagnetic Interference Information A–2 Canadian Department of Communications (DOC) Interference Information A–2 FCC Notification and Repair Information A–3 Installation and Operational Procedures A–5 DOC Notification and Repair Information A–6 Renseignements sur la notification du ministére des Communications du Canada et la réparation...
Page 7 Contents Unit Load Calculation Worksheet Unit Load Worksheet C–2 Backing Up with a Memory Card Card Types D–2 Memory Card Formatting D–5 Backup D–7 Automatic Backup D–11 Restore D–18 Modifying a Release 2.1 or Earlier Processor for Key Mode NI-1 BRI Provisioning AT&T 5ESS Switch Translations F–2 Northern Telecom DMS-100 Switch Translations...
Page 8 Contents Glossary GL-1 Index IN-1 Maintenance and Troubleshooting...
Page 9 Figures Introduction 1–1. Setting Up the MLX-20L Console 1–4 1–2. Setting Up the PC 1–5 1–3. External Modem Setup 1–7 1–4. The SPM Display 1–12 1–5. Removing the Control Unit Housing 1–16 1–6. Disconnecting AC Power 1–17 1–7. Maintenance Strategy 1–18 Control Unit Problems 4–2.
Page 10 Figures Central Office Problems 5–1. Installing the Control Unit Top Cover (Release 2.1 and Later) 5–38 5–2. Installing the Control Unit Front Cover (Release 2.1 and Later) 5–39 5–3. Assembling the Control Unit Housing (Release 2.0 and Earlier) 5–41 5–3. Installing the Control Unit Housing (Release 2.0 and Earlier) 5–42...
Page 11 Tables Introduction 1–1. Function of PC Keys in SPM 1–13 Error Logs, Access Logs, and System Inventory 2–1. Transient/Permanent Error Thresholds 2–2 2–2. Error Codes 2–6 Telephone Problems 3–1. Troubleshooting Telephone Problems 3–2 3–2. MLX Telephone Display Buttons 3–8 3–3. TTRs Required by VMS 3–9 3–4.
Page 12: Control Unit Problems
Tables Control Unit Problems (continued) 4–7. NI-BRI Test Result Codes 4–80 4–8. Internal Loopback Test Errors 4–100 Central Office Problems 5–1. Troubleshooting Trunk Symptoms 5–2 Maintenance and Troubleshooting...
Page 13 Tables Maintenance and Troubleshooting...
Page 14 Safety The exclamation point in an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. IMPORTANT SAFETY INSTRUCTIONS When installing telephone equipment, always follow basic safety precautions to reduce the risk of fire, electrical shock, and injury to persons, including: Read and understand all instructions.
Page 15 Safety Do not install this product near water, for example, in a wet basement location. Do not overload wall outlets, as this can result in the risk of fire or electrical shock. The MERLIN LEGEND Communications System is equipped with a 3-wire grounding-type plug with a third (grounding) pin.
Page 16: Save These Instructions
Safety WARNING: For your personal safety, DO NOT install an MFM yourself. ONLY an authorized technician or dealer representative shall install, set options, or repair an MFM. To eliminate the risk of personal injury due to electrical shock, DO NOT attempt to install or remove an MFM from your MLX telephone. Opening or removing the module cover of your telephone may expose you to dangerous voltages.
Page 17 Safety Maintenance and Troubleshooting...
Page 18: About This Book
About This Book The MERLIN LEGEND Communications System is an advanced digital switching system that integrates voice and data communications features. Voice features include traditional telephone features, such as Transfer and Hold, and advanced features, such as Group Coverage and Park. Data features allow both voice and data to be transmitted over the same system wiring.
Page 19: Terms And Conventions Used
Terms and Conventions Used Refer to the following documentation for additional information: Equipment and Operations Reference provides detailed information on system hardware, telephones, and other equipment. Feature Reference provides details on the features of the communications system. System Programming gives procedural instructions for programming system features.
Page 20 Terms and Conventions Used Some older terms have been replaced with newer terms. The following list shows the old term on the left and the new term on the right. trunk module line/trunk module trunk jack line/trunk jack station extension station jack extension jack analog data station...
Page 21: Product Safety Labels
Product Safety Labels Typographical Conventions (continued) Example Purpose The names of fixed-feature, If you press the Feature button on an factory-imprinted buttons appear MLX display telephone, the display lists in bold. The names of telephone features you can select. A programmed buttons are printed programmed Auto Dial button gives as regular text.
Page 22: Security
Security Security Certain features of the system can be protected by passwords to prevent unauthorized users from abusing the system. You should assign passwords wherever you can and limit knowledge of such passwords to three or fewer people. Nondisplaying authorization codes and telephone numbers provide another layer of security.
Page 23: Related Documents
Related Documents Related Documents In addition to this book, the documents listed below are part of the documentation set. Within the continental United States, these documents can be ordered from the AT&T GBCS Publications Fulfillment Center by calling 1 800 457-1235. Document No.
Page 24: How To Comment On This Document
How to Comment on This Document Document No. Title Documentation for Qualified Technicians 555-640-140 Installation, Programming & Maintenance (IP&M) Binder [consists of Installation, System Programming & Maintenance (SPM), Maintenance & Troubleshooting Toll Fraud Security 555-025-600 GBCS Products Security Handbook How to Comment on This Document We welcome your comments, both good and bad.
Page 25: Introduction
Introduction The purpose of maintenance is to detect, report, and clear problems quickly with minimal disruption of service. The system attempts to isolate each problem to a single replaceable unit, whenever possible, by running automatic tests. Errors that it cannot automatically correct are usually recorded in error logs.
Page 26 Equipment Detailed information about system programming is included in System Programming and in System Programming and Maintenance (SPM) . You can use either a DOS PC or a Master Controller (MCII or MCIII) to run SPM. To connect a PC to the control unit, you need a 355AF adapter and a D8W-87 cord.
Page 27: On-Site Programming Maintenance
On-Site Programming Maintenance On-Site Programming Maintenance You can perform on-site maintenance with an MLX-20L console or a PC with SPM software. This book provides maintenance instructions from the console. If you are using a PC, refer to System Programming and Maintenance (SPM) for details.
Page 28: Setting Up The Mlx-20L Console
On-Site Programming Maintenance Alternate MLX-20L Default Default Jacks (the first five) Line Jack Line Jack MLX-20L MLX-20L 408 GS/LS-MLX Home More 008 MLX Home More Menu Inspct Menu Inspct Message Message Volume Volume Feature Transfer Feature Transfer HFAI Conf HFAI Conf PQRS WXYZ...
Page 29: Setting Up The Pc
On-Site Programming Maintenance Setting Up the PC Plug a PC into the ADMIN jack on the processor module as shown in Figure 1–2. If you are using a remote PC for system programming, see “Remote Programming Maintenance.” Processor Module ADMIN Jack Tur n ins ert...
Page 30: Remote Programming Maintenance
Remote Programming Maintenance Remote Programming Maintenance Remote maintenance allows you to support the system from an off-premises location. You can check error logs and system status and restart the system remotely. To perform remote maintenance, you need a PC with SPM software, a tip/ring telephone, and a 1200-bps modem.
Page 31 Remote Programming Maintenance Setting Up Equipment for Remote Maintenance To set up equipment for remote maintenance, follow the steps below while referring to Figure 1–3 and to Installation . 1 Connect the PC and modem. If you have an external modem, use an EIA-232-D cable. If you have an internal modem, the connection is already established.
Page 32: Using Spm
Using SPM Using SPM For more information on using SPM, see System Programming and Maintenance. Starting SPM The procedure for accessing SPM differs slightly, depending on whether your PC is connected directly or by modem to the control unit. With a Direct Local Connection To access SPM when your PC is connected directly to the control unit, follow the steps below.
Page 33 Using SPM With a Local or Remote Modem Connection When the equipment is set up, you can perform remote maintenance by dialing the remote processor’s built-in 2400/1200-bps modem. You can dial the modem directly or call the system operator and request to be transferred to the modem.
Page 34 Using SPM Dialing the Modem Directly To dial the modem directly, follow the steps below. 1 Start SPM. When the Welcome message appears, press any key. 2 Enter the command to put the modem in originate mode (this command varies depending on the type of modem you are using). 3 Pick up the handset on the T/R telephone and dial the remote access trunk number.
Page 35 Using SPM Console Display/Instructions Additional Information 7 Enter the password. Type the remote access password. The password you enter does not appear as you type it. Select an option. Press one of the function keys. NOTES: 1. If you do not know the password, check the System Information Report or ask to speak with the system manager.
Page 36: The Spm Display
Using SPM The SPM Display SPM screens simulate the MLX-20L console (see Figure 1–4). Figure 1–4. The SPM Display Each SPM screen includes a 7-line by 24-character console simulation window that corresponds to the display area of the MLX-20L telephone. To the right and left of this console simulation window are columns, listing the keys that correspond to similarly located buttons on the MLX-20L telephone.
Page 37: Function Of Pc Keys In Spm
Using SPM A list of labels on the right side of the screen shows key combinations that correspond to buttons on the MLX-20L telephone. Table 1–1 describes the function of PC keys within SPM. Table 1–1. Function of PC Keys in SPM PC Key Console SPM Function...
Page 38 Using SPM Table 1–1 Continued C + 1 Help. Display a help screen about SPM operations. To exit from Help, press e. C + 5 Reset. Reset the communications port. For example, if the information on the screen is garbled, try exiting from and then re-entering the screen.
Page 39: Preparation For Hardware Maintenance
Preparation for Hardware Maintenance Exiting SPM To exit SPM, follow these steps. 1 Return to the System Programming menu. If the display gives directions for returning to the main menu, follow the directions. If not, press 0 (Exit) to return to the previous menu. Continue to press 0 (Exit) until the main menu appears.
Page 40: Removing The Control Unit Housing
Preparation for Hardware Maintenance If you have a MERLIN LEGEND Communications System (Release 2.0 or earlier): 1. Pry the clips from the housing on both sides of the control unit; use a screwdriver if they are difficult to remove. 2. Carefully pull the housing towards you. NOTE: If the MERLIN LEGEND (Release 2.0 or earlier) system has more than one carrier, make sure you hold the housing assembly on the basic carrier at the...
Page 41: Disconnecting Ac Power
Preparation for Hardware Maintenance Disconnecting AC Power To disconnect the AC power, see Figure 1–6, and follow the steps below. 1 Disconnect the AC power to each auxiliary power unit by unplugging the power cord from the wall outlet. 2 Disconnect the AC power to each carrier by unplugging the power cord from the wall outlet.
Page 42: Maintenance Strategy
Maintenance Strategy Maintenance Strategy The maintenance strategy presented in this section is only a guideline, not a fixed procedure. Refer to Figure 1–7 whenever you are uncertain as to how to proceed. As you become more experienced with maintaining and troubleshooting the system, you will most likely develop your own strategy.
Page 43 Maintenance Strategy Trouble Reports System trouble can be reported in two ways: By users By system alarms (permanent errors) Automatic Tests The system performs ongoing maintenance automatically by running tests that: Monitor the status of equipment. Audit operations consistency. Detect hardware malfunctions. Without disrupting normal service, the tests check hardware and software that are in service.
Page 44 Maintenance Strategy If a software installation or upgrade is taking place, a blinking character is displayed to indicate the status of the procedure. See “Forced Installation of System Software” in Chapter 4 for more information. The status display indicates an alarm (on an MLX-20L console or a PC running SPM), and can be viewed on the Error screen.
Page 45 Maintenance Strategy Warm Start A loss of power for less than 250 ms can cause a warm start. If this occurs, calls in progress are not dropped, but calls in the process of being connected may be dropped. Considerations Power interruptions of less than 100 ms usually do not affect the system.
Page 46 Maintenance Strategy Frigid Start (System Erase) CAUTION: All system programming is erased. When you perform a frigid start (System Erase), all calls are dropped, and the system configuration information is erased. All system memory must be reinitialized, including system programming. Then the entire system must be rebooted. To perform a frigid start, select as follows: Console Procedure...
Page 47 Maintenance Strategy Isolating the Trouble You can isolate any problem to one of the following areas: Telephone Control unit Central office NOTE: If you change the jack assignment of any telephone, be sure to record the extension jack change on Form 2a, System Numbering: Extension Jacks. See Appendix B, “System Numbering Forms,”...
Page 48 Maintenance Strategy 1 Check the permanent errors. 2 If errors still exist, check the transient errors. 3 Check the last 10 errors whenever you want to review the 10 most recently recorded errors—either permanent or transient. Trouble Accessing the Error Logs If you cannot access the error logs, or if the system is inoperable, use the following steps as a guideline to troubleshoot the system.
Page 49 Maintenance Strategy Once you receive that information, use any maintenance or system programming feature that may lead to the root of the problem. See “Access Log for Maintenance and System Programming” in Chapter 2 for additional information. See System Programming for information about system programming and the Inspect function.
Page 50: Unit Loads
Unit Loads Check the Trunks Troubleshoot the trunks that are connected to the control unit. See Chapter 5, “Central Office Problems.” Check the Central Office If the error logs indicate the central office (CO) as the source of the problem, and you have resolved all other possible causes, notify the customer that they should call the central office and ask the central office to check the problem at their end (see Chapter 5, “Central Office Problems”):...
Page 51 Unit Loads Only the telephones and adjuncts that connect to the analog and digital ports on the control unit require unit load calculation. Do not include any equipment with its own power supply (for example, an answering machine) in the unit load calculation.
Page 52 Unit Loads Upgrading the Power supply The 391A3 power supply has a maximum rating of 75 unit loads. If your system contains a 391A1 or 391A2 power supply module, and the unit loads for that carrier will exceed 54, it is recommended that a 391A3 power supply be installed in the system.
Page 53: Error Logs, Access Logs, And System Inventory
Error Logs, Access Logs, and System Inventory As described in “Maintenance Strategy” in Chapter 1, much of your troubleshooting relies on the error logs and the access log, for maintenance and system programming. Both of these maintenance features are described here in detail.
Page 54: Transient/Permanent Error Thresholds
Error Logs Table 2–1. Transient/Permanent Error Thresholds Error Transient/Permanent Code Error Description Threshold Checking the Error Logs Once you have reviewed the error logs, you should print the error information. This will help you determine whether your work has resolved each problem. (Refer to “Summary”...
Page 55: Error Logs, Access Logs, And System Inventory
Error Logs To check the error logs, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the System option. 2 Select Error Log. mm/dd/yy hh mm 3 Select an error log option. If you select see “Checking the Last 10 Errors”...
Page 56 Error Logs Checking Permanent Errors Follow Steps 1 through 3 above for “Checking the Error Logs.” In Step 3, select Console Display/Instructions Additional Information xxxxxxxxxxxxxxxxxxxxxx Press the More button to page mm/dd/yy hh mm through the permanent errors. mm/dd/yy hh mm xxxx Press the Drop button to delete an error log entry.
Page 57 Error Logs Checking the Last 10 Errors Follow Steps 1 through 3 above for “Checking the Error Logs.” In Step 3, select Console Display/Instructions Additional Information xxxxxxxxxxxxxxxxxxxxxx mm/dd/yy hh mm xxxx Press the More button to page through the last 10 errors. Line 2 provides a brief description of the error code identified on Line 6.
Page 58 Error Logs Table 2–2. Error Codes Error Codes Description Action No action required; however, if problem System programming is okay. persists, troubleshoot the processor. No action required; however, if problem System programming is okay. persists, troubleshoot the processor. If problem persists, troubleshoot the System programming is okay.
Page 59 Error Logs Table 2–2 Continued Error Codes Description Action If the processor was removed while in System was restarted and initialized use, the system may perform a frigid start to default programming. due to loss of system programming. This error is also logged after a Restore system as described in System System Erase.
Page 60 Error Logs Table 2–2 Continued Error Codes Description Action Troubleshoot the processor. Processor problem. Troubleshoot the processor. Processor problem. Troubleshoot the processor. Processor problem. Change system programming to reflect Physical and logical type mismatch. the proper module or install the proper Module inserted into wrong slot.
Page 61 Error Logs Table 2–2 Continued Error Codes Description Action Flip the write protection switch on the The Translation card has the write card to off. It this problem persists try protection switch on. another card and then replace the processor module if the problem remains.
Page 62 Error Logs Table 2–2 Continued Error Codes Description Action No action required. This error indicates that the VMS machine may be down. No action required. If problem persists, May be noisy line or central office troubleshoot the DID line and inform the problem.
Page 63 Error Logs Table 2–2 Continued Error Codes Description Action Check facility provisioning and T1 Services (Channels-Voice/Data) reprogram channels appropriately for administered incorrectly. voice or data. If the problem persists, contact the NSAC. Correct indicated errors, and then The error logs are full, and no more remove entries from the transient system errors can be added to them.
Page 64 Error Logs Table 2–2 Continued Error Codes Description Action Troubleshoot the T1 trunk. If problem Incoming signal does not have valid persists, escalate to your technical framing information. support organization. Service on the link has been lost. Troubleshoot the T1 trunk. If problem The far end of the network interface persists, check the CSU and the DS1 has lost frame synchronization.
Page 65 Error Logs Table 2–2 Continued Error Codes Description Action Troubleshoot the T1 trunk. If problem Misframe count reached 18. persists, escalate to your technical support organization. Troubleshoot the T1 trunk. If problem Slip count reached 88. persists, escalate to your technical support organization.
Page 66 Error Logs Table 2–2 Continued Error Codes Description Action Usually no action is required. The link should return to normal once the test is completed. If problem persists, contact your technical support organization. Usually no action is required. The link should return to normal once the test is completed.
Page 67 Error Logs Table 2–2 Continued Error Codes Description Action Troubleshoot the PRI trunk and report to service provider; otherwise, no action required. If problem persists, contact your technical support organization. Troubleshoot the PRI trunk and report to service provider; otherwise, no action required.
Page 68 Error Logs Table 2–2 Continued Error Codes Description Action Test the trunk with a single-line No loop current on an outgoing call. telephone. If the problem is not in the If this error occurs four times trunk, replace the module with one that is consecutively, and if Automatic known to be working.
Page 69 Error Logs Table 2–2 Continued Error Codes Description Action Reset the board . If problem persists, Only applies to modules that have troubleshoot the module. extension jacks. No action required. Delete this entry from This error is reported when modules the transient log.
Page 70 Error Logs Table 2–2 Continued Error Codes Description Action If problem persists, troubleshoot the Reported during cold start. module. If problem persists, replace the Memory failed the RAM test. Turns processor. on the processor LED. If problem persists, replace the Memory failed the ROM test.
Page 71 Error Logs Table 2–2 Continued Error Codes Description Action If problem persists, troubleshoot the tie Outbound dialing problems on tie trunk configuration. Troubleshoot the far trunks. For a tie trunk with delay dial or end to see if it is working and translated wink start, the far end of the network properly.
Page 72 Error Logs Table 2–2 Continued Error Codes Description Action Turn the processor off and then on. Communication problems occurred Repeat system programming between the processor and the procedure. If the problem persists, modules. The module received an replace the module. unrecognized message from the processor.
Page 73 Error Logs Table 2–2 Continued Error Codes Description Action Turn power off for at least 1 second and If this error occurs 4 times then turn it on. Repeat system consecutively, and if Automatic programming procedure. If problem Maintenance-Busy is enabled and persists, replace the module.
Page 74 Error Logs Table 2–2 Continued Error Codes Description Action Reset the card and try again. Replace The memory card voltage is incorrect. the card if the problem persists and try again. If the problem persists, replace the processor. Check the programmed SPID for Service on the link has been lost.
Page 75: Access Log
Access Log Table 2–2 Continued Error Codes Description Action The network has indicated that a protocal Service on the line may be affected. error has occured. Verify the line provisioning by running the NI-BRI Provisioning Test or through other means. If the provisioning is correct, contact your technical support organization.
Page 76 Access Log Scanning the Log The last 20 events are shown, beginning with the most recently accessed event. When you reach the end of the list, you hear a beep and all variable information is cleared from the screen. To return to the beginning of the list, select and then select again.
Page 77: System Inventory
System Inventory Console Display/Instructions Additional Information 2 Display the first screen of the Access Log. The screen below shows the access log. To page through the events, press the More button. System Inventory If you need to contact your technical support organization, you may also need to access the System Inventory screen.
Page 78 System Inventory To check System Inventory, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the System option. 2 Select the Inventory option. When you access the System Inventory screen, Slot 00 information is displayed. Line 3 indicates that the processor occupies Slot 00. Press the More button to review information for each subsequent slot.
Page 79 System Inventory Reviewing the Screen Lines 4, 5, and 6 indicate information that may be asked of you when you call your technical support organization: Line 4, the hardware vintage, indicates the revision level of the processor board’s firmware. Line 5 indicates the boot ROM release number for the board software, followed by the official software version number.
Page 80 System Inventory 2–28 Error Logs, Access Logs, and System Inventory...
Page 81: Telephone Problems
Telephone Problems Once you isolate a problem to the telephone (or a group of telephones), you can run various tests to check a telephone’s operation. Use the procedure below as a general guideline for troubleshooting telephones. 1 Replace the telephone (or adjunct) with one that works properly. 2 If the problem persists, connect the telephone directly to the control unit, using a cord that works properly.
Page 82: Fixing Telephone Problems
Fixing Telephone Problems If you change the jack assignment of any telephone, be sure to record the extension jack change on Form 2a, System Numbering: Extension Jacks. See Appendix B, “System Numbering Forms,” for details. Fixing Telephone Problems If a reported telephone problem matches any symptom described in Table 3–1, refer to the proper section of this chapter.
Page 83 Fixing Telephone Problems NOTE: Refer to “Troubleshooting Trunk Problems” in Chapter 5 if the reported problem is echo during conversations on T1 trunks with GS emulation connected to a toll office. 1 Check modular connections in the telephone for loose or broken connectors.
Page 84 Fixing Telephone Problems 12 Replace the wiring between the module jack field and the telephone to see if there is a wiring problem. Analog Multiline Telephone Problems If telephone LEDs and/or ringing tones do not work properly on analog multiline telephones, follow the steps below. 1 Move the T/P switch on the left-hand side to the T (test) position.
Page 85 Fixing Telephone Problems Single-Line Telephone Problems If more than one single-line telephone cannot dial correctly, even though they are receiving calls, use the steps below to test the touch-tone receivers (TTRs) for a single-line telephone. 1 Pick up the handset; then dial and the 2-digit number of the TTR you want to test.
Page 86: Mlx Telephone Tests
MLX Telephone Tests Cancel the Call Forwarding feature (for the receiving telephone): On multiline telephones, press the Feature button and dial On single-line telephones, pick up the handset, dial , and then hang up. NOTE: You can cancel Call Forwarding from the receiving telephone or from the forwarding telephone, providing that you know the number.
Page 87 MLX Telephone Tests 5 Press each fixed-feature button that does not have an LED (Transfer, Conf, Drop, and Hold) and each dialpad button. When you press each one of these buttons, the Message LED should toggle on and off. 6 Press the fixed-feature buttons and the dialpad buttons in the order shown below to turn on all the LEDs.
Page 88: System Requirements For Touch-Tone Receivers
System Requirements for Touch-Tone Receivers 11 If these tests fail, replace the MFM. Table 3–2. MLX Telephone Display Buttons Button Display Home Menu More Inspct nn ; where nn is 1–10, depending Each unlabeled display button on which button you press. System Requirements for Touch-Tone Receivers The following symptoms indicate that the system needs more touch-tone...
Page 89 System Requirements for Touch-Tone Receivers 2 Estimate the hourly call volume for calls originating from single-line telephones, incoming calls on remote access and Direct Inward Dial (DID) lines, and calls on tie lines. 3 Use Table 3–4 to determine the number of TTRs required by the system. Use Column 2 if account codes are not being used.
Page 90: System Requirement For Ttrs
System Requirements for Touch-Tone Receivers Table 3–4 estimates the total number of TTRs required in the system, based on call volume and whether the system uses account codes. The call volume in this table includes all calls originating from single-line telephones, calls on tie lines, incoming remote access and Direct Inward Dial (DID) calls, and calls routed to the voice messaging system.
Page 91: Control Unit Problems
Control Unit Problems The next step after resolving problems with telephones, adjuncts, and related wiring, is to troubleshoot the control unit. Troubleshoot the control unit components in the following order: Power supply Processor Line/trunk and extension modules (hereafter referred to as modules ) Carrier WARNING: Beware of hazardous voltages.
Page 92: Power Supply Problems
Power Supply Problems Save the system programming to a memory card (beginning with Release 3.0). See Appendix D, “Backing up with a Memory Card,” for detailed instructions. If automatic backups are performed, it may not be necessary to save system programming. NOTE: If the processor module is not functioning, it may not be possible to back up system programming.
Page 93 Power Supply Problems Checking the LED If the power supply’s LED is off, check the power switch. If it is off, turn on the power switch for each power supply in the control unit. Start with the rightmost carrier and end with the basic carrier . Watch for the following responses: The green power LED should light on each power supply.
Page 94 Power Supply Problems Interlocking Post Figure 4–1. Power Supply Interlocking Post 3 If the interlocking post is not broken, reinstall the power supply; follow Steps 5–8 in “Replacing the Power Supply” later in this chapter. Replacing the Ring Generator If tip/ring devices (such as single-line telephones, fax machines, and answering machines) do not ring, and an older 012 module is installed, try the procedure below.
Page 95 Power Supply Problems Current 012 modules contain built-in ring generators [apparatus code 517G13 (28) or higher letter]. If tip/ring devices connected to a newer module do not ring, see “Module Problems” later in this chapter. See Table 4–1 below to determine which 012 module is installed.
Page 96 Power Supply Problems 6 Disconnect the other cable from the header labeled P101 on the right side of the power supply circuit board. You need to grip this cable firmly and pull forcefully. 7 Remove the four screws from the ring generator, as shown in Figure 4–2. 8 Remove the ring generator.
Page 97 Power Supply Problems Step 7: Remove the four screws (one in each corner of the ring generator) Steps 1 through 3: RING GENERATOR Open the power supply UNIT WIRE WIRE CLIP CLIP Step 4: Detach cable Step 4: from wire clip Detach cable from wire clip Grip...
Page 98 Power Supply Problems Replacing Auxiliary Power Units Follow this procedure if any of the following symptoms occur: The LEDs on the multiline telephones that are connected to the last two modules in the carrier do not light. The last two slots in the carrier do not have power. The power supply LED is off.
Page 99 Power Supply Problems -48 VDC Auxiliary Power Auxiliary Input Power Unit INPUT POWER Input -48 VDC Power Cord Ferrite Ground Cores Wire AUX Power Unit Outlet AC Power Cord Control Unit AC Power Cord Figure 4–3. Replacing an Auxiliary Power Supply CAUTION: Do not plug the power supply or the auxiliary power unit into the AC outlet until you are ready to turn on the system, as described in...
Page 100 Power Supply Problems Replacing the Power Supply WARNING: Beware of hazardous voltages; whenever the carrier connections are exposed, use extreme caution; do not touch them directly or with any type of tool. Follow all procedures carefully. To remove the power supply module, follow the steps below. 1 If possible, back up system programming on a memory card (Release 3.0 or later only) or floppy disk.
Page 101 Power Supply Problems To replace the power supply module, follow the steps below and refer to Figure 4–3. 1 Insert a new power supply. a Reinstall the power supply module by hooking the top into the basic carrier and then swinging it down into place. Push the lower end firmly until the locking tab clicks.
Page 102: Processor Problems
Processor Problems Processor Problems If the error logs (or any aspect of troubleshooting) indicate that the processor is the problem, back up system programming if possible. See System Programming and Maintenance (SPM) for instructions on backing up to a floppy disk. See Appendix D, “Backing Up with a Memory Card,” for instructions on backing up to a PCMCIA memory card.
Page 103 Processor Problems To perform Peek, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option. 2 Specify Slot 00. Dial or type , then select Enter. 3 Select the Demand Test. 4–13 Control Unit Problems...
Page 104 Processor Problems Console Display/Instructions Additional Information 4 Select the Peek option. are not displayed, which prevents customers from accidentally changing the processor memory. 5 Dial a memory address. Dial [ nnnnnnnn ], then select The screen below shows the details of the address you specified. aaaaaaaa =address entered in Step More More...
Page 105 Processor Problems Poke CAUTION: Do not perform Poke unless you are following instructions from your technical support organization. Summary Console Procedure Menu Dial the slot no. PC Procedure 6 2 Type the slot no. 0 7 1 To perform Poke, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option.
Page 106 Processor Problems Console Display/Instructions Additional Information 3 Select the Demand Test. 4 Select Poke two times. are not displayed, which prevents customers from accidentally changing the processor memory. Press the button (the left button for Line 4) twice. 5 Select Continue. 7 Follow the instructions from your technical support organization to select a memory address.
Page 107 Processor Problems Console Display/Instructions Additional Information 8 Follow the instructions from your technical support organization to modify the contents of the address entered in Step 7. System Erase (Frigid Start) CAUTION: Do not perform a System Erase unless you are installing a replacement processor or following instructions from your technical support organization.
Page 108 Processor Problems Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option. 2 Specify Slot 00. Dial or type , then select 3 Select the Demand Test. 4 Select System Erase twice. are not displayed which prevents customers from accidentally changing the processor memory.
Page 109 Processor Problems Console Display/Instructions Additional Information 5 Select Yes. Forced Installation/Upgrade of System Software CAUTION: Forced installation should only be performed under emergency situations in which on-board system software has been corrupted. All existing system programming will be erased by this procedure. Beginning with Release 3.0, the system software can be installed or upgraded through the PCMCIA interface slot on the processor module.
Page 110 Processor Problems Summary Console Procedure Menu PC Procedure 6 1 5 2 1 Back up system programming. To back up system programming onto a floppy disk, see System Programming maintenance (SPM) . To back up onto a memory card, see Appendix D, “Backing Up with a Memory Card.”...
Page 111 Processor Problems PROCESSOR MODULE Error/Status Code Display PCMCIA Interface Slot IN S E C O P Y R IG H T © A L L Push in R IG H 1 9 9 3 T S R A T & T E S E R V E D to remove...
Page 112 Processor Problems Console Display/Instructions Additional Information 3 Initiate the software installation. If the maintenance screens are functioning correctly, select from the Maintenance menu. Continue with Step 4. If maintenance screens are unreliable or not available, power cycle the system by turning off the system and leaving it off for at least one second.
Page 113 Processor Problems Console Display/Instructions Additional Information When completed, select Exit to continue. 6 Verify that the memory card or release number is the required one, and select Exit to continue. If the releases are incompatible, the following screen appears. See “Other Error Conditions,” following this section, for continuing instructions.
Page 114 Processor Problems Console Display/Instructions Additional Information 7 If the release number is the one you want, select Yes. 8 If the forced installation is attempted while a line/trunk or extension is busy, the following screen appears. 9 Observe the progress screen and the error/status display LED on the processor module.
Page 115 Processor Problems 10 Remove the memory card from the interface slot. 11 Verify that system software has been correctly installed and that the default system programming is present. No error condition is displayed on the error/status display. 12 Restore system programming. After about 10 minutes, check to see if the red alarm status LED is lit, (RED).
Page 116: Codes Displayed On The Error/Status Display
Processor Problems Table 4–2. Codes Displayed on the Error/Status Display During Forced Installation Code Meaning Action Upgrade is in progress. No action required Install is in progress. No action required Incorrect memory card Insert correct memory card and repeat type forced installation procedure.
Page 117 Processor Problems Missing Card or Card Not Inserted Correctly Insert the memory card correctly; then select and begin the forced installation procedure again. Memory Card Is Wrong Type Select and repeat the forced installation procedure with a new memory card. NOTE: Forced installation can be performed successfully with an upgrade memory card only if the installation is performed through the maintenance screens.
Page 118 Processor Problems System Busy If the forced installation is attempted while a line/trunk or extension is busy, the following screen appears. When all lines/trunks or extensions are freed, the installation continues. Select to return to the System menu and cancel the installation. If system software is corrupted, system maintenance may not provide an accurate indication of busy lines/trunks or extensions.
Page 119 Processor Problems CAUTION: If releases are incompatible, pressing the hidden key will delete existing programming. Before pressing the hidden key, make a backup of the system programming. Use SPM or a PCMCIA translation card. Console Display/Instructions Additional Information If the releases are incompatible, the following screen appears. Pressing hidden key two times deletes existing program.
Page 120 Processor Problems Replacing the Processor Module A failed processor module must be replaced immediately. To replace the processor module, follow the steps below. 1 If possible, save system programming. See Appendix D, “Backing Up with a Memory Card.” To back up onto a floppy disk, see System Programming and Maintenance (SPM) .
Page 121 Processor Problems The backup floppy disk or original system programming disk. See System Programming and Maintenance for instructions. The backup memory card or original system programming memory card (Release 3.0 and later). See Appendix D, “Backing Up with a Memory Card,” for instructions. 12 Reconnect the D8W cord(s) connecting the SMDR printer and/or system programming PC.
Page 122: Replacing The Feature Module
Processor Problems CAUTION: Grasping only one of the rings may cause damage to components on the processor circuit board or feature module. 5 Check the HDR4 header on the processor circuit board for proper mode operation. (For more information about modifying the mode, see Chapter 2 of Installation.
Page 123: Module Problems
Module Problems 6 Align the connectors on the new feature module with the connectors in the processor (see Figure 4–5). 7 Firmly press the new feature module into the processor. 8 Insert the processor back into the carrier. (For more information about inserting the processor, see Chapter 2 of Installation.
Page 124 Module Problems Module Test Process Figure 4–6 shows the module test process. Refer to it and the text that follows for the recommended approach to testing modules. 4–34 Control Unit Problems...
Page 125: Module Test Process
Module Problems Check the equipment: power supply maintenance terminal processor (use the PC when testing (back up the system programming) MLX modules) 2 Check the error logs 3 Resolve any processor problems 4 Busy-out or reset the module errors 5 Run the Internal Loopback test errors 6 Check the error logs errors...
Page 126 Module Problems Considerations Review the following items before you begin a module test procedure. System Components Before running a module test, make sure the following system components are working: Power supply Processor. Save the system programming onto a floppy disk. See System Programming and Maintenance (SPM).
Page 127 Module Problems NOTE: If the system does not recognize a 408 GS/LS-MLX module during testing, check the release number of the system. The 408 GS/LS-MLX module does not work with Releases 1.0 or 1.1. An 008 MLX module must be used to provide extension jacks with Releases 1.0 or 1.1.
Page 128 Module Problems 10 Restore the module. Menu Dial the slot no. Restoring automatically undoes the busy-out and reset. For additional information on restoring a module, see “Restore,” later in this chapter. Persistent Module Problems If any of the module tests fail and replacing the module does not clear the trouble, then: Several modules may be faulty.
Page 129 Module Problems Once you finish testing a module, you must restore it. Restoring a module terminates the Busy-out or Reset condition. See “Restore,” later in this chapter, for instructions. Busy-Out Summary Console Procedure Menu Dial the slot no. PC Procedure 6 2 Type the slot no.
Page 130 Module Problems Console Display/Instructions Additional Information 3 Select Busy-Out. xx = slot number entered in Step 2 For all MLX modules, is also displayed as an option on this screen. For 100D modules, , and are also displayed as options on this screen. For all 800 NI-BRI modules, are also displayed as options on this screen.
Page 131 Module Problems The screen below appears when the module is successfully busied-out. Console Display/Instructions Additional Information xx = slot number entered in Step 2 The screen below appears when the busy-out fails again; be sure to specify the correct slot. xx = slot number entered in Step 2 Reset Summary...
Page 132 Module Problems Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option. 2 Specify the slot number (nn = 00 to 17). Dial or type [ nn ], then select 3 Select Reset. xx = slot number entered in Step 2 For all MLX modules, is also displayed as an option on this screen.
Page 133 Module Problems Console Display/Instructions Additional Information 4 Select Yes. xx = slot number entered in Step 2 The screen below appears while the module is discontinuing service to lines/trunks and extensions. All calls in progress are being dropped. xx = slot number entered in Step 2 The screen below appears when the module is successfully reset.
Page 134 Module Problems Restore Once you complete module testing, restore it to terminate the Busy-Out or Reset condition. Summary Console Procedure Menu Dial the slot no. PC Procedure 6 2 Type the slot no. 0 3 1 Appropriate Modules Any module after testing it Time Estimate Less than 1 second.
Page 135 Module Problems Console Display/Instructions Additional Information 3 Select the Restore option. xx = slot number entered in Step 2 For all MLX modules, is also displayed as an option on this screen. For 100D modules, , and are also displayed as options on this screen. For all 800 NI-BRI modules, are also displayed as options on this screen.
Page 136 Module Problems The screen below appears when the module is successfully restored. Console Display/Instructions Additional Information xx = slot number entered in Step 2 The screen below appears when the Restore fails. Try again, and be sure to specify the correct slot. xx = slot number entered in Step 2 Internal Loopback Test This test checks communication between the processor and the module...
Page 137 Module Problems Time Estimate It takes approximately 1.5 minutes to run each test. The 100D module and 408 GS/LS-MLX module each take approximately 3 minutes, because they each have two DSEs. Busy-Out or Reset Busy-out or reset the module being tested prior to beginning the test.
Page 138 Module Problems Console Display/Instructions Additional Information 2 Specify the slot number ( nn = 00 to 17). Dial or type [ nn ], then press 3 Select Demand Test. xx =slot number entered in Step 2 For all MLX modules, is also displayed as an option on this screen.
Page 139 Module Problems Console Display/Instructions Additional Information 5 To run the test once or run it repeatedly, select Test Once or Repetitive. xx = slot number entered in Step 2 Select The screen below appears while the test is running. At the same time, if the module has a green LED, it flashes.
Page 140 Module Problems The screen below appears when either test ( ) fails. Console Display/Instructions Additional Information xx =slot number entered in Step 2 The 100D and 408 GS/LS-MLX module each have two DSEs. To display the second DSE’s test results, press the More button. Lines 5 and 6 identify the cause of the failure or the number of errors found per port.
Page 141: Internal Loopback Test Errors
Module Problems If the test fails, find the error message in Table 4–3 and proceed as indicated. Table 4–3. Internal Loopback Test Errors Error Messages Corrective Action Exit the test, busy-out the slot, and try again. Exit the test and try again; be sure to type the correct slot number.
Page 142 Module Problems Board Controller Test This procedure tests the module’s internal functions, such as ROM, RAM, the timer, dual-port RAM, and so on. Summary Console Procedure Menu Dial the slot number. PC Procedure 6 2 Type the slot no. 0 6 3 2 or 3 Appropriate Modules This test can be run on all modules except the...
Page 143 Module Problems To run the Board Controller Module Test, use the following steps. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option. 2 Specify the slot number ( nn = 00 to 17). Dial or type [ nn ], then select 3 Select Demand Test.
Page 144 Module Problems Console Display/Instructions Additional Information 4 Select the Board Controller Test. xx = slot number entered in Step 2 elect Test Once or Repetitive. xx = slot number entered in Step 2 The screen below appears while the test is running. At the same time, if the module has a green LED, it flashes.
Page 145: Board Controller Test Errors
Module Problems The screen below appears when either test ( ) fails. xx =slot number entered in Step 2 Lines 5 and 6 show error messages. If there are more than two messages, select More to see them. Interpreting Test Results If the test completes successfully, the module’s board controller is functioning properly.
Page 146 Module Problems Restoring the Module When you are finished running module tests, be sure to restore the module. See “Restore,” earlier in this chapter. B-Channel Loopback Test This test verifies that specific communication paths on the MLX or 800 NI-BRI modules are operational.
Page 147 Module Problems Restore Restore the module if it successfully completes all module tests and the errors no longer occur. is in the Slot menu, which you can access by doing the following from the console: Menu See “Restore,” earlier in this chapter, for additional information.
Page 148 Module Problems Console Display/Instructions Additional Information 3 Select the B-Channel Loopback test. xx =slot number entered in Step 2 For all 800 NI-BRI modules, are also displayed as options on this screen. The screen below appears while the test is running. Console Display/Instructions Additional Information xx =slot number entered in Step 2...
Page 149 Module Problems The screen below appears only if the test fails. xx =slot number entered in Step 2 Lines 3 and 4 identify the cause of the failure or the number of errors found per B-channel. On an MLX module, there are 16 B-channels, numbered 0 through 15.
Page 150 Module Problems Table 4–5. Channel Loopback Errors Error Messages Corrective Action Exit the test, busy-out the slot, and try again. Exit the test and try again; be sure to type the correct slot number. Do not indicate an empty slot or the processor (00).
Page 151 Module Problems CAUTION: This section does not apply to the processor or power supply. Although the system is designed so that you can remove and replace modules without affecting call processing, partially inserting and removing a module can cause a cold start. Adding a 100D module or changing any of its DS1 parameters requires that the system be idle.
Page 152 Module Problems 6 Restore the module. Lift up the module to disengage it from the rod at the top of the carrier. 7 Connect the trunk and extension cords. 8 Attach a tag, error printout, or any information that will help identify any visible problems, failure symptoms, and relevant error reports.
Page 153 Module Problems 7 Go to the blue field on the cross-connect field and, starting at the top left corner, push the patch cord onto the first connecting block. 8 Using the diagonal pliers or wire strippers, cut off the other end of the patch cord and expose the pairs.
Page 154 Module Problems Firmware on this circuit module can be upgraded or reinstalled with an Upgrade memory card. An upgrade is performed when a new release of firmware enhances a module’s capabilities or corrects problems. Firmware can be reinstalled if the existing circuit module firmware has been corrupted. Summary Console Procedure Menu...
Page 155 Module Problems PROCESSOR MODULE Error/Status Code Display PCMCIA Interface Slot IN S E C O P Y R IG H T © Push in A L L R IG H 1 9 9 3 T S R A T & T E S E R V E D to remove...
Page 156 Module Problems Console Display/Instructions Additional Information 2 From the Maintenance menu, select the Slot option. 3 Specify the slot number ( nn = 00 to 17). Dial or type [ nn ], then select 4 Select Upgrade. The screen below appears for all modules except the 100D, 800 NI-BRI, and MLX boards.
Page 157 Module Problems The screen below appears if the module is a 100D. Console Display/Instructions Additional Information xx = slot number entered in Step 3 The screens below appear during the procedure. When completed, select Exit to continue. 4–67 Control Unit Problems...
Page 158 Module Problems Console Display/Instructions Additional Information 5 Select the firmware to be programmed. xx = slot number entered in Step 3 Line 2 displays the firmware version currently installed on the module. Lines 4, 5 and 6 display firmware versions available on the memory card.
Page 159 Module Problems Console Display/Instructions Additional Information 7 Choose to wait for the module to busy-out or reset the module. xx = slot number entered in Step 3 Continue Busy-Out does not interrupt calls in progress, but Reset does. 8 Observe the status screen below. See the next section, “Error Conditions During Firmware Upgrade”...
Page 160 Module Problems If a is also required, the screen below appears. Console Display/Instructions Additional Information Perform a and/or as indicated above. Error Conditions During Firmware Upgrade The following error conditions can occur during a firmware upgrade. Recovery procedures follow each error condition. Memory Card In Use By Another Feature Select and begin the upgrade procedure again.
Page 161 Module Problems Insert the memory card correctly; then select and begin the upgrade procedure again. Memory Card Is Corrupted Select and repeat the upgrade procedure with a new memory card. Module Cannot Be Upgraded Console Display/Instructions Additional Information xx = slot selected in Step 3. This procedure can only be run on the 800 GS/LS-ID, 016, or 800 NI-BRI modules or other modules introduced after Release 3.0.
Page 162 Module Problems Module Error Console Display/Instructions Additional Information xx = slot selected in Step 3. Select and reinitiate the upgrade procedure. xx = slot selected in Step 3. Select and reinitiate the upgrade procedure. Memory Card File Error xx = slot selected in Step 3. Select , then make sure that the memory card is properly inserted, and reinitiate the upgrade procedure.
Page 163 Module Problems Console Display/Instructions Additional Information xx = slot selected in Step 3. Select , then make sure that the memory card is properly inserted, and reinitiate the upgrade procedure. If the error occurs again, select insert a new memory card, then reinitiate the upgrade procedure. Flash ROM Fails to Erase xx = slot selected in Step 3.
Page 164: Ni-Bri Module Problems
800 NI-BRI Module Problems Board Memory Programming Failure Console Display/Instructions Additional Information xx = slot selected in Step 3. Repeat the upgrade procedure. If the upgrade continues to fail after several attempts, the module should be replaced. See “Replacing the Module.” 800 NI-BRI Module Problems An 800 NI-BRI module requires running the Provisioning Test, in addition to the other module tests, under the following circumstances:...
Page 165 800 NI-BRI Module Problems NI-1 BRI Provisioning Test This test verifies that each communication path on the 800 NI-BRI module is operational by establishing and disconnecting a series of voice and data calls between any two communication paths on the module. Before proceeding with this test, have available completed copies of System Planning Form 3–i, Incoming Trunks : BRI Options and the NI-1 BRI Planner Form .
Page 166 800 NI-BRI Module Problems Time Estimate Approximately 20 minutes for a fully utilized board. However, communication paths with errors will increase the time. Boards with fewer administered lines and no errors will decrease the time. Interrupting the Test Interrupt the test by selecting Test Failure If the test fails, follow the instructions in Tables 4–6 and 4–7.
Page 167 800 NI-BRI Module Problems Console Display/Instructions Additional Information 2 Specify the 800 NI-BRI module’s 2-digit slot number ( nn = 01 to 17). Dial or type [ nn ], then select 3 Select the Provisioning test. xx =slot number entered in Step 2 4 If the test canot be run to completion, an error message screen appears, such as the one shown below: xx =slot number entered in Step 2...
Page 168: Ni Bri Provisioning Test Errors
800 NI-BRI Module Problems Table 4–6. NI BRI Provisioning Test Errors Error Messages Corrective Action Exit the test, busy-out the slot, and try again. Exit the test and try again. Be sure to type the correct slot number; do not indicate an empty slot or the processor (00). If the problem persists, replace the 800 NI-BRI module.
Page 169 800 NI-BRI Module Problems The screen below appears only if all sixteen communication paths connected to the slot pass the tests. xx =slot number entered in Step 2 The screen below appears if fewer than sixteen communication paths are administered on the module or if one or more communication paths fail. On a module with fewer than sixteen administered paths, the screen will show “OK”...
Page 170 800 NI-BRI Module Problems 6 Interpret the test results If the test completes successfully, the module’s B-channels are functioning properly. If a communication path fails, find the result code in Table 4–7, and proceed as indicated. 7 Restore the module when all tests are completed. When all of the lines have passed the test, the Red LED will remain on until the CO reinitializes all of the lines.
Page 171 800 NI-BRI Module Problems Table 4–7 Continued Result Description Corrective Action Code Possible causes for this error are: No calling party number continued (Error identified at Incoming Voice Call Test, Step 3) Note: One or both of the following conditions can result in the absence of calling party number: - Originator is provisioned for privacy.
Page 172 800 NI-BRI Module Problems Table 4–7 Continued Result Description Corrective Action Code CO provisioning This result indicates that facility is correctly administered and error for data established on Layers 1, 2, and 3. However, a problem calls on that associated with the provisioning at the CO for data calls was facility detected.
Page 173 800 NI-BRI Module Problems Table 4–7 Continued Result Description Corrective Action Code CO provisioning This result indicates that facility is correctly administered and error for voice established on Layers 1, 2, and 3. However a problem and data calls associated with the provisioning at the CO for voice and data on that facility calls was detected.
Page 174 800 NI-BRI Module Problems Table 4–7 Continued Result Description Corrective Action Code MERLIN LEGEND Check that the facility is administered with the DN provided administration by the CO. If the DN was not administered properly, correct it error and/or CO and rerun the test.
Page 175 800 NI-BRI Module Problems Table 4–7 Continued Result Description Corrective Action Code LAYER 1 BRI Examine the wiring for the line, ensuring that all connections Provisioning error have been closed. Rerun the test if a wiring problem is on facility identified.
Page 176 800 NI-BRI Module Problems Table 4–7 Continued Result Description Corrective Action Code Testing was Correct the known problems on other facilities and rerun the inconclusive test. because the lines(s) used to test this one had problems Outgoing Voice Call Test Place a voice call from the BRI line under test to either a working facility on the system or to a phone on the premise that is connected to the Central Office (CO).
Page 177 800 NI-BRI Module Problems 4 Dial the destination number. (In a Centrex environment, it is necessary to dial a 9 before the destination number.) Verify the following results and note any failures: Dial tone should be off after the first digit is dialed. Verify that the originating end hears ringback after the last digit is dialed and that the destination phone is ringing.
Page 178 800 NI-BRI Module Problems 3 Verify that the originating number appears on the display of the MLX telephone programmed with the BRI line under test. Verify that the associated green LED flashes. If the correct number is not displayed, verify that the number dialed and the DFT administration are correct.
Page 179 800 NI-BRI Module Problems 2 Dial the destination number. (In a Centrex environment, it is necessary to dial a 9 before the destination number.) Verify the following results and note any failures: You may hear dial tone at the beginning of dialing and ringback after completion.
Page 180 800 NI-BRI Module Problems 1 Assign the BRI line to a data terminal. If using a facility on the system as a destination, assign the destination facility to another data terminal. 2 Place a test call to the BRI line under test. Verify that alerting is indicated at the data station associated with the BRI line.
Page 181 800 NI-BRI Module Problems Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option. 2 Specify the 2-digit slot number ( nn = 00 to 17). Dial or type [ nn ], then select 3 Select Clock. xx =slot number entered in Step 2 displayed only for the 800 NI-BRI module.
Page 182: D Module Problems
100D Module Problems 100D Module Problems The 100D module requires the CSU Loopback Test, in addition to the other module tests. See Figure 4–6 for a diagram of the entire module testing process. If you have any questions about the 100D module that this section does not cover, contact your technical support organization.
Page 183 100D Module Problems LINE LOOPBACK For the ACCULINK 3150 only, select front panel Line Loopback command. Details are provided (ACCULINK 3150 below. CSU) Busy-Out or Reset Prior to beginning the test, busy-out the 100D module. Both are in the Slot menu, which you can access by doing the following from the console: Menu...
Page 184: T1 Csu Loopback Connection
100D Module Problems For the ESF T1 CSU, flip the DTE LOOPBACK switch on the front panel to the up position to activate the loopback test (see Figure 4–9). For the ACCULINK 3150 CSU, Press the F2 buttonon the front panel to select “Test”...
Page 185: Esf T1 Csu Dte Loopback Connection
100D Module Problems SEND CODE DTE LOOPBACK ESF T1 CSU Eq SM UP/DN IN OUT MON MON IN OUT -1 +1 FRAME ALARM LOSS NEAR END LOOPED LOW DENS LOOPED CRC ERROR FRAME LOSS DIAGNOSTIC PULSES INTERFACE CRITICAL POWER LOCAL FAR END LOOPED POWER Figure 4–9.
Page 186: Acculink 3150 Csu Dte Loopback Command
100D Module Problems CSU ESF Stat Test Cnfig Figure 4–11. ACCULINK 3150 CSU DTE Loopback Command 1 Test: Rlpbk Lpbk Ptrns Figure 4–12. ACCULINK 3150 CSU DTE Loopback Command 2 4–96 Control Unit Problems...
Page 187: Acculink 3150 Csu Dte Loopback Command
100D Module Problems Loopback: Abort Figure 4–13. ACCULINK 3150 CSU DTE Loopback Command 3 Loopback: Figure 4–14. ACCULINK 3150 CSU DTE Loopback Command 4 4–97 Control Unit Problems...
Page 188 100D Module Problems To run the CSU Loopback Test, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option. 2 Specify the 2-digit slot number ( nn = 00 to 17). Dial or type [ nn ], then select 3 Select the CSU Loopback Test xx = slot number entered in Step 2 displayed only for the 100D module.
Page 189 100D Module Problems The screen below appears while the test is running. At the same time, the module’s green LED flashes. Console Display/Instructions Additional Information xx = slot number entered in Step 2 The screen below appears only if the module passes the test. If the test is successful, contact the CO and ask them to check their end.
Page 190 100D Module Problems If the test fails, find the error message in Table 4–8 and proceed as indicated. Table 4–8. Internal Loopback Test Errors Error Messages Corrective Action Exit the test, busy-out the slot, and try again. Exit the test and try again; be sure to type the correct slot number.
Page 191 100D Module Problems Restoring the Module After completing the CSU Loopback Test, follow the steps below to restore the module. 1 If you are finished testing modules, restore the 100D module. Refer to “Restore,” earlier in this chapter, for instructions. 2 Reset the CSU.
Page 192 100D Module Problems Synchronization. The system maintains proper synchronization to the loop clock and switches to the local clock when the loop clock is not available (for example, during a loss of signal or a blue alarm). When the loop clock source is restored, the system switches back to the loop clock.
Page 193 100D Module Problems Console Display/Instructions Additional Information 2 Specify the 2-digit slot number ( nn = 00 to 17). Dial or type [ nn ], then select 3 Select Error Events. xx = slot number entered in Step 2 4 Select the current hour or a previous hour. xx =slot number entered in Step 2 Select The current hour always begins at ##:00 and ends at the last complete 15-...
Page 194 100D Module Problems The screen below displays the errors that have accumulated during the current hour. Console Display/Instructions Additional Information xx = slot number entered in Step 2 The screen below displays the errors that have accumulated during the previous hour. xx = slot number entered in Step 2 100D Module Clock Status If you have not been trained to perform T1 maintenance, contact your...
Page 195 100D Module Problems Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option. 2 Specify the 2-digit slot number ( nn = 00 to 17). Dial or type [ nn ], then select 3 Select Clock. xx =slot number entered in Step 2 displayed only for the 100D module.
Page 196: Carrier Problems
Carrier Problems Console Display/Instructions Additional Information 4 If you need assistance in interpreting the information displayed on the screen, contact your technical support. Carrier Problems Typical carrier problems include power supply failure, sudden failure of one or more modules, or system problems that cannot be isolated to a specific module.
Page 197: Checking System And Slot Status
Checking System and Slot Status 5 Remove the processor, the power supply, and all other modules from the faulty carrier. (If you prefer to remove the cords first, make sure they are labeled.) 6 Put the modules aside, in order, so that you can reinstall them later in the replacement carrier.
Page 198 Checking System and Slot Status The System Status procedure allows you to check simulated LEDs for the processor and other modules. This is explained in detail in “Reading the System Status Screen,” later in this chapter. Summary Console Procedure Menu PC Procedure 6 1 1 To check System Status, follow the steps below.
Page 199 Checking System and Slot Status Interpreting the System Status Screen Console Display/Instructions Additional Information R aaa =status (On, Off, No) of red LED Y aaa =status (On, Off, No) of yellow LED G aaa =status (On, Off, No) of green LED The System Status screen simulates LEDs for each module.
Page 200 Checking System and Slot Status If a slot is empty, , , and appear without indicating a status. Slot 4 is empty, according to the sample screen in the last procedure. Slot Status Slot Status provides the following information for a module in a particular slot: LED status Errors (yes or no) Mode (initialization, standby, test, or normal)
Page 201 Checking System and Slot Status Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Slot option. 2 Specify the 2-digit slot number ( nn = 00 to 17). Dial or type [ nn ] and select 3 Select the Status option xx=slot number entered in Step 2 For all MLX modules, is also displayed as an option on this...
Page 202 Checking System and Slot Status If you selected Slot 00, the screen below appears. For detailed information about this status screen, see “Slot Status,” earlier in this chapter. R aaa =status (On, Off, No) of red LED. If you selected a slot other than 00, the screen below appears. For detailed information about this status screen, see “Slot Status,”...
Page 203: Central Office Problems
Central Office Problems If you have tested the telephones and the modules in the control unit, you have isolated the trouble to the trunks or the CO. To isolate the trouble further, follow the instructions in this chapter to troubleshoot the trunks. If the trouble persists after following these instructions, the customer should contact the CO and ask a representative to troubleshoot from that end.
Page 204 Trunk Errors Table 5–1. Troubleshooting Trunk Symptoms Symptom Section Incoming calls not being received Incoming Trunk Problems Cannot make outgoing calls Outgoing Trunk Problems General trunk problems Manual Correction of Trunk Problems NOTE: If the customer reports echos during conversations on T1 trunks with GS emulation to a toll office, check the system programming for T1 trunks.
Page 205 Trunk Errors Outgoing Trunk Problems If the system cannot sieze outgoing trunks, try the following procedure for analog lines. NOTE: You cannot perform this procedure on a rotary telephone. 1 Check for outside dial tone at the network interface. For GS trunks, apply ground to the ring lead to get dial tone. If dial tone is not present, notify the customer.
Page 206 Trunk Errors 4 Listen for dial tone. If dial tone is not present, use a test telephone to isolate the problems either to the module where the trunk terminates or to the location in the trunk access equipment. If dial tone is present, dial a working outside number to verify that the call can be completed.
Page 207 Trunk Errors 5 At the maintenance terminal, check the trunk programming to be sure this trunk has been properly translated. See the system planning forms. 6 If the module continues to malfunction, replace it. Testing Trunks Automatically The automatic maintenance program takes the ports out of service when a trunk is malfunctioning.
Page 208 Trunk Errors No more than 50 percent of trunks in a pool can be in maintenance-busy states at one time. The only exceptions are as follows: User-imposed maintenance-busy (for example, module replacement) Module maintenance-busy (for example, a loss-of-service alarm in the 100D module) No external release at the central office end of the line Digital Trunks...
Page 209 Trunk Errors The CO fails to disconnect when the GS trunk is dropped by the system. After two occurrences, the trunk is put into a maintenance-busy state and a permanent error is logged. Loop-Start (LS) Trunk No loop current exists when the LS trunk is seized. The port is marked maintenance-busy , and a permanent error is logged after four occurrences.
Page 210: Checking Ports
Checking Ports Checking Ports You perform the following procedures from the maintenance terminal. By selecting from the Maintenance screen, you can check the maintenance- busy status and other information for individual trunks and extensions. Once you determine the maintenance-busy status, you might also be interested in the other features on the Port menu, which include the following: Resetting EIA-232 ports and modems Busying-out and restoring trunks and extensions...
Page 211 Checking Ports Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Port option. 2 Select the Line/Trunk option. 3 Specify the dial plan (line) number for the trunk ( nnn = 801 to 880). Dial or type [ nnn ], then select 5–9 Central Office Problems...
Page 212 Checking Ports Console Display/Instructions Additional Information 4 Select trunk Status. xxx = line number entered in Step 3 The maintenance-busy status for the trunk you selected is displayed as a or a , in that field (line 6) on the screen below. xxx = line number entered in Step 3 xxxx sspp...
Page 213 Checking Ports Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Port option. 2 Select the Station (extension) option. 3 Specify the dial plan extension number ( nnnn = 1- to 4-digit number). Dial or type [ nnnn ], then select nnnn 4 Select Status.
Page 214 Checking Ports The maintenance-busy status for the extension selected is displayed as a or a in the field (line 6) on the screen below. Console Display/Instructions Additional Information xxxx xxxx sspp xxxxxxxxxx Select to see the status of the next extension. Checking Digital Subscriber Line (DSL) Maintenance-Busy Status Summary...
Page 215 Checking Ports Console Display/Instructions Additional Information 2 Select the Digital Subscriber Line (DSL) option. 3 Specify the dial plan number for the DSL ( sspp = 2-digit slot number and 2-digit port number). Dial or type [ sspp ], then select sspp 4 Select DSL Status.
Page 216 Checking Ports Busying-Out a Trunk Summary Console Procedure Menu Dial the dial plan no. 6 3 1 Type the dial plan no. 0 2 PC Procedure To busy-out a trunk, follow the steps below. 1 From the Maintenance menu, select the Port option. 2 Select the Line/Trunk option.
Page 217 Checking Ports Console Display/Instructions Additional Information 4 Select Busy-Out xxx = line number entered in Step 3 The screen below is shown until Busy-Out finishes or fails. xxx = line number entered in Step 3 The screen below appears when Busy-Out is completed successfully. xxx = line number entered in Step 3 The screen below appears when Busy-Out fails.
Page 218 Checking Ports Busying-Out an Extension Summary Console Procedure Menu Dial the dial plan no. 6 3 2 Type the dial plan no. 0 2 PC Procedure To busy-out an extension, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Port option. 2 Select the Station (extension) option.
Page 219 Checking Ports Console Display/Instructions Additional Information 3 Specify the dial plan extension number ( nnnn = 1- to 4-digit extension number). Dial or type [ nnnn ], then select nnnn 4 Select Busy-Out. xxxx = extension number entered xxxx in Step 3 The screen below is shown until Busy-Out finishes or fails.
Page 220 Checking Ports The screen below appears when Busy-Out fails. If this occurs, exit and try again. xxxx = extension number entered xxxx in Step 3 Busying-Out a Digital Subscriber Line (DSL) Summary Console Procedure Menu Dial the dial plan no. 6 3 8 Type the dial plan no.
Page 221 Checking Ports Console Display/Instructions Additional Information 2 Select the DSL option. 3 Specify the dial plan DSL number ( sspp = 2-digit slot number and 2-digit port number). Dial or type [ sspp ], then select sspp 4 Select Busy-Out. sspp = slot/port number entered xxxx in Step 3...
Page 222 Checking Ports The screen below appears when Busy-Out is completed successfully. sspp = slot/port number entered sspp in Step 3 The screen below appears when Busy-Out fails. If this occurs, exit and try again. sspp = slot/port number entered sspp in Step 3 Restoring a Trunk Summary...
Page 223 Checking Ports Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Port option. 2 Select the Line/Trunk option. 3 Specify the dial plan number (line) for the trunk ( nnn = 801 to 880 ). Dial or type [ nnn ], then select 4 Select Restore.
Page 224 Checking Ports The screen below is shown until Restore finishes or fails. xxx = line number entered in Step 3 The screen below appears when Restore is completed successfully. xxx = line number entered in Step 3 The screen below appears when Restore fails. If this occurs, exit and try again.
Page 225 Checking Ports Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Port option. 2 Select the Station (extension) option. 3 Specify the dial plan extension number ( nnnn = 1- to 4-digit number). Dial or type [ nnnn ], then select nnnn 4 Select Restore.
Page 226 Checking Ports The screen below is shown until Restore finishes or fails. Console Display/Instructions Additional Information xxxx = extension number entered xxxx in Step 3 The screen below appears when Restore is completed successfully. xxxx = extension number entered xxxx in Step 3 The screen below appears when Restore fails.
Page 227 Checking Ports To restore an extension, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Port option. 2 Select the Station (extension) option. 3 Specify the dial plan extension number ( sspp = 2-digit slot number and 2- digit port number).
Page 228 Checking Ports Console Display/Instructions Additional Information 4 Select Restore. sspp = slot/port number entered sspp in Step 3 The screen below is shown until Restore finishes or fails. sspp = slot/port number entered sspp in Step 3 The screen below appears when Restore is completed successfully. sspp = slot/port number entered sspp in Step 3...
Page 229 Checking Ports Resetting an RS-232 Port The ADMIN (SPM) port is RS-232 Port 1, and the SMDR port is RS-232 Port 2. Summary Console Procedure Menu Dial the dial plan no. 6 3 3 or 4 Type the dial plan no. 0 PC Procedure To reset an RS-232 port, follow the steps below.
Page 230 Checking Ports Console Display/Instructions Additional Information 4 Select Yes x = port selected in Step 2 The screen below is shown until Reset finishes or fails. x = port selected in Step 2 The screen below appears when Reset is completed successfully. x = port selected in Step 2 The screen below appears when Reset fails.
Page 231 Checking Ports Resetting the Processor’s Internal Modem Summary Console Procedure Menu 6 3 6 1 2 PC Procedure To reset the processor’s internal modem, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Port option. 2 Select the Modem option.
Page 232 Checking Ports Console Display/Instructions Additional Information 4 Select Yes. The screen below is shown until Reset finishes or fails. The screen below appears when Reset is completed successfully. The screen below appears when Reset fails. If this occurs, exit and try again. 5–30 Central Office Problems...
Page 233 Checking Ports Auditing DS1 PRI B-Channels The Auditing Lines and Auditing Calls procedures initiate an audit. Once an audit is initiated, you need to wait for the far end to send a message, which usually takes about four minutes. After waiting four minutes, check the error logs to see if any new PRI errors have occurred.
Page 234 Checking Ports To audit lines, follow the steps below. Console Display/Instructions Additional Information 1 From the Maintenance menu, select the Port option. 2 Select the B-Channel option. 3 Specify the slot and port number ( ss =2-digit slot number; pp =2-digit port number).
Page 235 Checking Ports Console Display/Instructions Additional Information 4 Select Audit Line. xxxx = slot and port number entered xxxx in Step 3. The screen below appears only if the audit message is successfully created and sent. xxxx = slot and port number entered xxxx in Step 3.
Page 236 Checking Ports This indicates that the problem may be at the central office (CO) end. First, make sure the correct B-channel is selected. If the correct B-channel is selected, the customer or AT&T repreentative acting as the customer’s agent should ask the CO to clear the problem from that end. If the problem is not at the CO end, select the correct B-channel and repeat the Audit Lines procedure.
Page 237 Checking Ports Console Display/Instructions Additional Information 2 Select the B-Channel option. 3 Specify the slot and port number ( ss =2-digit slot number; pp =2-digit port number). Dial or type [ sspp ] and select (sspp) xxxx 4 Select Audit Call. xxxx = slot and port number entered xxxx in Step 3.
Page 238 Conclusion of Hardware Maintenance After about four minutes, check the error logs. If new PRI errors occur, contact your technical support organization for help on interpreting the results and your action. If no new PRI messages appear, the ends are most likely in agreement.
Page 239 Conclusion of Hardware Maintenance 2 Hold the top cover with the hooks facing you. 3 Engage the tabs at the rear of the top cover with the carrier. 4 Lower the top cover, so that the legs lock into the vents on the module. Installing the Front Cover To install the front cover, see Figure 5–2 and follow these steps.
Page 240: Installing The Control Unit Top Cover
Conclusion of Hardware Maintenance Top cover Empty module Figure 5–1. Installing the Control Unit Top Cover (Release 2.1 and Later) 5–38 Central Office Problems...
Page 241 Conclusion of Hardware Maintenance Front cover M E R L IN L E G E N D Figure 5–2. Installing the Control Unit Front Cover (Release 2.1 and Later) 5–39 Central Office Problems...
Page 242 Conclusion of Hardware Maintenance Installing the Control Unit Housing (Release 2.0 or Earlier) After you have completed maintenance and troubleshooting, follow the steps below to reinstall the Release 2.0 or earlier control unit housing. 1 Assemble the control unit housing. See Figure 5–3. If the housing is already assembled, go to Step 2.
Page 243: Assembling The Control Unit Housing
Conclusion of Hardware Maintenance Right Hand Front Panel Side Panel MERLIN LEGEND Line Up With the Semicircle on Inside of Front Panel Slide Tongues in and Push Front Panel Up Figure 5–3. Assembling the Control Unit Housing (Release 2.0 and Earlier) 5–41 Central Office Problems...
Page 244 Conclusion of Hardware Maintenance Slide housing cover forward into clips Figure 5–4. Installing the Control Unit Housing (Release 2.0 and Earlier) 2 Line up the wire clips attached to the carrier with the recesses on the outside of the side panels. See Figure 5–4. If the wire clips are not attached to the control unit, see “Installing the Housing Clips”...
Page 245: Support Telephone Number
Customer Support Information Support Telephone Number In the U.S.A. only, AT&T provides a toll-tree customer Helpline (1 800 628-2888) 24 hours a day. If you need assistance when installing, programming, or using your system, call the Helpline, or your AT&T representative.
Page 246: Electromagnetic Interference Information
Customer Support Information Federal Communications Commission (FCC) Electromagnetic Interference Information This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Page 247: Fcc Notification And Repair Information
Customer Support Information FCC Notification and Repair Information This equipment is registered with the FCC in accordance with Part 68 of its rules. In compliance with those rules, you are advised of the following: Means of Connection. Connection of this equipment to the telephone network shall be through a standard network interface jack, USOC RJ11C, RJ14C, RJ21X.
Page 248 Customer Support Information ¨ The REN (Ringer Equivalence Number) for all three systems is 1.5A. The facility interface code (FIC) and service order code (SOC): ¨ For tie line connection, the FIC is TL31M and the SOC is 9.0F. ¨ For connection to off-premises stations, the FIC is OL13C and the SOC is 9.0F.
Page 249 Customer Support Information Ringer Equivalence Number (REN). The REN is used to determine the number of devices that may be connected to the telephone line. Excessive RENs on the line may result in the devices not ringing in response to an incoming call. In most, but not all, areas the sum of the RENs should not exceed five (5.0).
Page 250 Customer Support Information Changes at Local Telephone Company. Your local telephone company may make changes in its facilities, equipment, operations, or procedures that affect the proper functioning of this equipment. If they do, you will be notified in advance to give you an opportunity to maintain uninterrupted telephone service.
Page 251 Customer Support Information Allowing this equipment to be operated in such a manner as not to provide proper answer supervision signaling is in violation of Part 68 rules. New Network Area and Exchange Codes. The MERLIN LEGEND software does not restrict access to any new area codes or exchange codes established by a local telephone company.
Page 252 Customer Support Information Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or any equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
Page 253: Des Communications Du Canada Et La Réparation
Customer Support Information Renseignements sur la notification du ministère des Communications du Canada et la réparation AVIS: L’étiquette du ministère des Communications du Canada identifie le matériel homologué. Cette étiquette certifie que le matériel est conforme à certaines normes de protection, d’exploitation et de sécurité des réseaux de télécommunications.
Page 254 Customer Support Information AVERTISSEMENT: L’utilisateur ne doit pas tenter de faire ces raccordements lui-même; il doit avoir recours à un service d’inspection des installations électriques, ou à un electricien, selon le cas. L’indice de charge (IC) assigné à chaque dispositif terminal indique, pour éviter toute surcharge, le pourcentage de la charge totale qui peut être raccordée à...
Page 255 Customer Support Information MERLIN LEGEND D.O.C. Ministère des Communications Location Label Placement du Canada emplacement de l’étiquette A–11 Maintenance and Troubleshooting...
Page 256: Security Of Your System
Customer Support Information Security of Your System: Preventing Toll Fraud As a customer of a new telephone system, you should be aware that there is an increasing problem of telephone toll fraud. Telephone toll fraud can occur in many forms, despite the numerous efforts of telephone companies and telephone equipment manufacturers to control it.
Page 257 Customer Support Information The Remote Access feature, as designed, helps the customer, through proper administration, to minimize the ability of unauthorized persons to gain access to the network. Most commonly, phone numbers and codes are compromised when overheard in a public location, through theft of a wallet or purse containing access information, or through carelessness (for example, writing codes on a piece of paper and improperly discarding it).
Page 258: Toll Fraud Prevention
Customer Support Information When possible, restrict the off-network capability of off-premises callers, using calling restrictions, Facility Restriction Levels (Hybrid/PBX mode only), and Disallowed List capabilities. In Release 3.1 and later systems, a prepared Disallowed List (number 7) is provided and is designed to prevent the types of calls that toll- fraud abusers often make.
Page 259 Customer Support Information The following is a discussion of how toll fraud is often perpetrated and ways to prevent unauthorized access that can lead to toll fraud. Physical Security, Social Engineering, and General Security Measures Criminals called hackers may attempt to gain unauthorized access to your communications system and voice messaging system in order to use the system features.
Page 260 Customer Support Information Educate employees that hackers may try to trick them into providing them with dial tone or dialing a number for them. All reports of trouble, requests for moving extensions, or any other administrative details associated with the MERLIN LEGEND Communications System should be handled by one person (the system manager) or within a specified department.
Page 261 Customer Support Information Security Risks Associated with Transferring through voice messaging systems Toll fraud hackers try to dial into a voice mailbox and then execute a transfer by dialing * T. The hacker then dials an access code (either 9 for Automatic Route Selection or a pooled facility code) followed by the appropriate digit string to either direct dial or access a network operator to complete the call.
Page 262: And Later)
Customer Support Information FRL 3 for restriction to domestic long distance (excluding area code 809 for the Dominican Republic as this is part of the North American Numbering Plan, unless 809 is required) FRL 4 for international calling In Release 3.1 and later systems, default local and default toll tables are factory-assigned an FRL of 2.
Page 263 Customer Support Information If Outcalling is allowed to long distance numbers, build an Allowed List for the voice mail port extension(s) used for Outcalling. This list should contain the area code and the first three digits of the local exchange telephone numbers to be allowed. Additional general security for voice messaging systems: Use a secure password for the General Mailboxes.
Page 264 Customer Support Information If the Automated Attendant prompts callers to use Remote Call Forwarding (RCF) to reach an outside telephone number, the system may be susceptible to toll fraud. An example of this application is a menu or Submenu that says, “To reach our answering service, select prompt number 5,”...
Page 265 Customer Support Information NOTE: In most cases these will be loop-start lines/trunks without reliable disconnect. The local telephone company will need to be involved to change the facilities used for RCF to ground start lines/trunks. Usually a charge applies for this change. Also, hardware and software changes may need to be made in the MERLIN LEGEND system.
Page 266: Other Security Hints
Customer Support Information It is strongly recommended that customers invest in security adjuncts, which typically use one-time passcode algorithms. These security adjuncts discourage hackers. Since a secure use of the Remote Access feature generally offers savings over credit-card calling, the break-even period can make the investment in security adjuncts worthwhile.
Page 267 Customer Support Information Educating Users Everyone in your company who uses the telephone system is responsible for system security. Users and attendants/operators need to be aware of how to recognize and react to potential hacker activity. Informed people are more likely to cooperate with security measures that often make the system less flexible and more difficult to use.
Page 268 Customer Support Information Educating Operators Operators or attendants need to be especially aware of how to recognize and react to potential hacker activity. To defend against toll fraud, operators should follow the guidelines below: Establish procedures to counter social engineering . Social engineering is a con game that hackers frequently use to obtain information that may help them gain access to your communications system or voice messaging system.
Page 269 Customer Support Information Sudden increase in wrong numbers Establishing a Policy As a safeguard against toll fraud, follow these guidelines for your MERLIN LEGEND Communications System and voice messaging system: Change passwords frequently (at least quarterly). Changing passwords routinely on a specific date (such as the first of the month) helps users to remember to do so.
Page 270 Customer Support Information Keep the Remote Maintenance Device turned off when not in use by AT&T or your authorized dealer. Limit transfers to registered subscribers only. Use the Security Violations Notification options (Mailbox Lock or Warning Message) to alert you of any mailbox break-in attempts. Investigate all incidents.
Page 271 Customer Support Information Keep the system console and supporting documentation in an office that is secured with a changeable combination lock. Provide the combination only to those individuals having a real need to enter the office. Keep telephone wiring closets and equipment rooms locked. Keep telephone logs and printed reports in locations that only authorized personnel can enter.
Page 272: Limited Warranty And Limitation Of Liability
Customer Support Information Limited Warranty and Limitation of Liability AT&T warrants to you, the customer, that your MERLIN LEGEND Communications System will be in good working order on the date AT&T or its authorized reseller delivers or installs the system, whichever is later (“Warranty Date”).
Page 273 Customer Support Information Abuse, misuse, or negligent acts or omissions of the customer and persons under the customer’s control Acts of third parties and acts of God AT&T’S OBLIGATION TO REPAIR, REPLACE, OR REFUND AS SET FORTH ABOVE IS YOUR EXCLUSIVE REMEDY. EXCEPT AS SPECIFICALLY SET FORTH ABOVE, AT&T, ITS AFFILIATES, SUPPLIERS, AND AUTHORIZED RESELLERS MAKE NO WARRANTIES, EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIM ANY...
Page 274: Remote Administration And Maintenance
Customer Support Information Remote Administration and Maintenance The Remote Administration and Maintenance feature of your telecommunications system, if you choose to use it, permits users to change the system features and capabilities from a remote location. The Remote Administration and Maintenance feature, through proper administration, can help you reduce the risk of unauthorized persons gaining access to the network.
Page 275 Customer Support Information If you have a special telephone line connected to your Hybrid/PBX or Key system for Remote Administration and Maintenance, you should do one of the following: — Unplug the line when it is not being used. — Install a switch in the line to turn it off when it is not being used. —...
Page 276 Customer Support Information A–32 Maintenance and Troubleshooting...
Page 277: System Numbering Forms
System Numbering Forms When you change any existing trunk or extension wiring, record information about the wiring on the appropriate system numbering form. This appendix includes examples of all of the system numbering forms, and instructions for completing Form 2a, “System Numbering: Extension Jacks.”...
Page 278: Form 2A, System Numbering: Extension Jacks
System Numbering Forms Form 2a, System Numbering: Extension Jacks Renumber System* 2-Digit Selected Extension Numbers 3-Digit Set Up Space 2-Dig 3-Dig. Ring Voice Mod. Log. Jack Type Set Up Renumber Wire Person, Location, Ext. Ext. Space Label Ext. No. or Function Freq.‡...
Page 279 System Numbering Forms The number in the logical ID column refers to the number of the extension jack in the control unit. 1. In the “Eqpt” (Equipment). column, enter the type of device (such as an MLX-20L console) that is connected to the extension jack. On the second line, enter any attached adjuncts (such as an answering machine).
Page 280: Form 2B, System Numbering: Digital Adjuncts
System Numbering Forms Form 2b, System Numbering: Digital Adjuncts Factory-Set Pass. Telephone Person, Location, Log. Set Up 3-digit 2-digit Renumber to Adjuncts 2B Ext. No. Function, and Equipment Type Space 7300 7301 7302 7303 7304 7305 7306 7307 7308 7309 7310 7311 7312...
Page 281: Form 2C, System Numbering: Line/Trunk Jacks
System Numbering Forms Form 2c, System Numbering: Line/Trunk Jacks Music On Hold, Line/Trunk No. __________ Source __________ Maintenance Alarm, Line/Trunk No. ____________________ Loudspeaker Page, Line/Trunk No(s). _____________________ Loop-Start Reliable Disconnect* Incoming Operator Line/Trunk Toll Type Queue Module Jack Type Pool Type (Main Telephone Outmode...
Page 282: Form 2D, System Numbering: Special Renumbers
System Numbering Forms Form 2d, System Numbering: Special Renumbers Group Calling Pools* Factory-Set Renumber (Form 7d) Factory-Set Renumber (Form 2c) Group ID Number Number Description Label Group Paging Factory-Set Renumber (Form 7b) Number Group ID 7920 7921 Park Zone 7922 Factory-Set Renumber (Form 6a)
Page 283 Unit Load Calculation Worksheet If you determine that you need to recalculate the unit load for any carrier, use the instructions on the following worksheet. NOTE: You should have a separate copy of the worksheet for each carrier. See “Unit Loads” in Chapter 1 for information on recalculating unit loads.
Page 284: Unit Load Worksheet
Unit Load Calculation Worksheet Unit Load Worksheet 1. Number of modules in carrier (excluding power supply and processor: __________ If fewer than five, power is adequate. If five or six, continue to Step 2. 2. Key or Behind Switch mode only: Square Modified Indicate configuration of lines;...
Page 285 Unit Load Calculation Worksheet 5. Calculate the estimated unit loads. Module Unit Load = Total 12.0 008 MLX 13.5 008 OPT 12.8 100D 400 EM 400 GS/LS/TTR 12.0 408 GS/LS 12.0 408 GS/LS-MLX 13.5 800 NI-BRI 800 GS/LS 800 GS/LS-ID 800 DID Total Estimated Unit Load If the total is less than or equal to 54, any power supply module is...
Page 286 Unit Load Calculation Worksheet 6. Calculate the actual carrier unit load. Unit Load = Total Hybrid/PBX or Modified Equipment Square Network Access Lines GS/LS Telephones MLX-10 MLX-10D MLX-28D MLX-20L BIS-10 BIS-22 BIS-22D BIS-34 BIS-34D MLC-5 MDC-9000 MDCW-9000 10-Button Basic 10-Button HFAI 34-Button Basic 34-Button DLX 34-Button BIS...
Page 287 Unit Load Calculation Worksheet • Unit Load = Total Equipment Hybrid/PBX or Square Modiffied † Optional Equipment ‡ Direct Station Selector General Purpose Adapter Hands-Free Unit Headset Adapter Total Actual Unit Load † The MFM has its own wall power unit located at the telephone and therefore is not added to the unit load calculation.
Page 288 Unit Load Calculation Worksheet 7. Try to exchange modules between carriers to reduce the unit loads to 54. (Remember that the 100D, 400, 400 GS/LS/TTR, 800 GS/LS-ID, 800, 800 NI-BRI, and 800 GS/LS modules have unit loads of 0.0.) Repeat Steps 1 through 6 to recalculate unit loads for the new configuration.
Page 289 Unit Load Calculation Worksheet 8. Calculate the unit loads for slots 5 and 6 of the carrier. Unit Load = Total Hybrid/PBX or Equipment Modiffied Square Network Access Lines GS/LS Telephones MLX-10 MLX-10D MLX-28D MLX-20L BIS-10 BIS-22 BIS-22D BIS-34 BIS-34D MLC-5 MDC-9000 MDW-9000...
Page 290 Unit Load Calculation Worksheet Unit Load = Total Equipment Hybrid/PBX or Square Modiffied † Optional Equipment ‡ Direct Station Selector General Purpose Adapter Hands-Free Unit Headset Adapter Total Unit Load for Slots 5 and 6 † The MFM has its own individual wall power unit located at the telephone and therefore is not added to the unit load calculation.
Page 291 Unit Load Calculation Worksheet 9. Try to exchange modules between carriers to reduce the unit loads for slots five and six through 27. (Remember that the 100D, 400, 400 GS/LS/TTR, 800 GS/LS-ID, 800, 800 NI-BRI, and 800 GS/LS modules have unit loads of 0.0.) Repeat Steps 1 through 8 to recalculate unit loads for new configuration.
Page 292 Unit Load Calculation Worksheet C–10 Maintenance and Troubleshooting...
Page 293: Backing Up With A Memory Card
Backing Up with a Memory Card A PCMCIA (Personal Computer Memory Card International Association) interface slot is present on the processor module. The slot is a standard interface through which information can be added to or obtained from the system using a memory card. The PCMCIA interface slot accepts one memory card at a time.
Page 294: Card Types
Backing Up with a Memory Card Card Types The types of memory cards are described below. The card type is identified by a preprinted, color-coded label. Upgrade Card. This card is used for MERLIN LEGEND Communication System software upgrades. The upgrade can be performed by the system manager using the memory card and the option on the SPM Main Menu.
Page 295 Backing Up with a Memory Card INSERT AT&T PROPRIETARY THIS MEMORY CARD CONTAINS PROPRIETARY INFORMATION OF AT&T THAT IS NOT TO BE DISCLOSED OR USED EXCEPT IN ACCORDANCE WITH APPLICABLE AGREEMENTS. COPYRIGHT © 1993 AT&T ALL RIGHTS RESERVED Figure D–1. PCMCIA Translation Memory Card D–3 Maintenance and Troubleshooting...
Page 296 Backing Up with a Memory Card Inserting the Card To insert the card, hold the card with the AT&T logo facing up and the arrow pointing toward the slot. See Figure D–2 for the proper way to insert the memory card into the slot on the processor module. PROCESSOR MODULE Error/Status Code...
Page 297: Memory Card Formatting
Backing Up with a Memory Card Memory Card Formatting The memory card may have to be formatted before you begin any manual or automatic backup procedures. This section details the screens and messages that appear during the format procedure. CAUTION: Formatting overwrites previous data on the memory card.
Page 298 Backing Up with a Memory Card 3. A memory card may need to be formatted if it is intended for use as a translation card but is currently blank, or contains data other than backup files for the system. Format Warning AAAA AA AA AAAA...
Page 299 Backing Up with a Memory Card Backup Use this procedure to make a copy of your customized system data. You should create a backup at least three times during system installation (so that programmed information is not lost), and once after each system upgrade, service technician visit, or major system reconfiguration.
Page 300 Backing Up with a Memory Card Console Display/Instructions Additional Information 2 Select the System menu. 3 Select Back/Restore. 4 Select Backup. D–8 Maintenance and Troubleshooting...
Page 301 Backing Up with a Memory Card Console Display/Instructions Additional Information 5 Select the backup filename. If you select go to Step 8. You AAAA AAAA AAAA AA AA AAAA AA AA AAAA AAAA cannot rename either of these AAAA AA AA AAAA AA AA AAAA...
Page 302 Backing Up with a Memory Card Console Display/Instructions Additional Information 8 Respond to the prompt. filename = file selected in Step 5 or entered in Step 6 Select to abort the backup. Go to Step 11. to continue the backup. 1 Select 9 Observe the backup progress screen.
Page 303: Automatic Backup
Backing Up with a Memory Card Automatic Backup If an automatic backup fails for any reason, except when the failure results from the memory card being write-protected, the automatic backup feature is turned off. Follow the procedure below to reprogram automatic backup. Summary: Automatic Backup Programmable by System Manager...
Page 304 Backing Up with a Memory Card Procedure: Automatic Backup Console Display/Instructions Additional Information 1 Insert the memory card into the PCMCIA interface slot on the processor module. 2 Select the System menu. 3 Select Back/Restore. 4 Select Auto Backup. D–12 Maintenance and Troubleshooting...
Page 305 Backing Up with a Memory Card Console Display/Instructions Additional Information 5 Make a selection. AAAA AAAA AA AA AAAA AAAA AA AA AAAA AAAA AAAA AA AA AAAA AAAA AA AA AAAA AAAA AAAA AA AA AAAA Select AAAA AA AA AAAA , or 6 Save your entry.
Page 306 Backing Up with a Memory Card Daily Backup Procedure Console Display/Instructions Additional Information 1 Erase the current daily backup time ( xxxx ). A + P Press Drop. 2 Enter the time when you want the automatic backup to run every day ( hh = 00 to 23, mm = 00 to 59).
Page 307 Backing Up with a Memory Card Weekly Backup Procedure Console Display/Instructions Additional Information 1 Erase the current weekly backup day and time ( xxxxx ). A + P Press Drop. 2 Enter the day ( d = 0 to 6) and time ( hh = 00 to 23, mm = 00 to 59) when you want the automatic backup to run each week.
Page 308 Backing Up with a Memory Card NOTE: The screens shown in this section are from the manual backup procedure; however, the screens that may appear in both the manual and automatic backup procedures are similar. The screens in both procedures differ only in the appearance of the first line.
Page 309 Backing Up with a Memory Card The memory card is not inserted or is inserted incorrectly while a backup is in progress. The backup file that was being created is deleted and the backup is aborted. You must reinsert the memory card and repeat the backup procedure.
Page 310 Backing Up with a Memory Card CAUTION: The memory card may be write-protected to avoid the accidental erasure of the backup files. Make certain this is not the case before you change the write-protect tab. Card Failure If the card is damaged, repeat the backup with a different card. If a backup is in progress and fails, the system makes two additional attempts at the backup.
Page 311 Backing Up with a Memory Card The Inspect feature (Inspct or d ) is available to view the attributes of the backup files on the memory card prior to initiating the restore procedure. The attributes included on the Inspect screen are the filename, the time and day of the file backup/update, the location of the system programming port, and information about the system software release from which the backup was made.
Page 312 Backing Up with a Memory Card Procedure: Restore Console Display/Instructions Additional Information 1 Insert the memory card into the PCMCIA interface slot on the processor module. 2 Select the System menu. 3 Select Back/Restore. 4 Select Restore. D–20 Maintenance and Troubleshooting...
Page 313 Backing Up with a Memory Card Console Display/Instructions Additional Information 5 Select the restore file. mmdd = month and day of backup AAAA AA AA AAAA AA AA AAAA AAAA AAAA AA AA AAAA AA AA AAAA AAAA AAAA AA AA AAAA AA AA AAAA...
Page 314 Backing Up with a Memory Card Console Display/Instructions Additional Information 9 Observe the restore file validation screen. n = filename selected in Step 5 The session is finished, and the system restarts. You must enter system programming again to continue Restore Messages During the restore procedure, additional screens may appear to alert you to problems with the translation memory card, the backup file or the...
Page 315 Backing Up with a Memory Card Card Removed after Confirmation The memory card was removed from the processor slot while the restore was in progress. The restore is aborted and the system performs a System Erase (frigid start). You must reinsert the memory card and repeat the restore procedure.
Page 316 Backing Up with a Memory Card Release Mismatch n = filename selected X.Y = release number This screen only appears if you are upgrading from Release 3.0 or higher and the releases are not compatible. Card Failure Console Display/Instructions Additional Information If the restore fails because the card is damaged, the system performs a System Erase (frigid start).
Page 317 Backing Up with a Memory Card If the restore fails because the card is damaged, the system performs a System Erase (frigid start). Repeat the restore procedure using a different file and/or memory card. Wrong Type of Card The inserted card does not match the card option selected from the System menu.
Page 318 Backing Up with a Memory Card Strap in Place for Key Mode but Mode is Set to Hybrid n = filename selected CAUTION: This procedure should be performed only by qualified service personnel. If the processor module has been strapped for Permanent Key mode, a restore to Hybrid/PBX mode is not possible.
Page 319 Modifying a Release 2.1 or Earlier Processor for Key Mode Release 2.1 and Earlier CAUTION: This procedure must be performed for KF registration with the FCC. This procedure prevents the system from being programmed as a Hybrid-PBX system. Do this only if the system is programmed for Key mode and GS trunks are not indicated on Form 2c, System Numbering: Line/Trunk Jacks.
Page 320 Modifying a Release 2.1 or Earlier Processor for Key Mode HDR4 SHUNT HDR3 Do not touch HDR3 Figure E–1. Modifying the Processor for Key Mode CAUTION: Do not touch the HDR3 header on the processor board; the header is exposed when the feature module is not installed in the processor.
Page 321: Installing The Control Unit Housing
Modifying a Release 2.1 or Earlier Processor for Key Mode 4 On the exposed portion of the processor board, find the header marked HDR4 ; it is in the upper-left area. A shunt is attached to one of the pins on the HDR4 header. 5 Remove the shunt from the single header pin;...
Page 322: Installing The Control Unit
Modifying a Release 2.1 or Earlier Processor for Key Mode Right Hand Front Panel Side Panel MERLIN LEGEND Line Up With the Semicircle on Inside of Front Panel Slide Tongues in and Push Front Panel Up Figure E–2. Installing the Control Unit Housing E–4 Maintenance and Troubleshooting...
Page 323 NI-1 BRI Provisioning This appendix provides detailed information concerning the features and translations that make up the ISDN Ordering Code (IOC) standardized capability package “S”, as well as the Multi-Line Hunt (MLH) feature. The MLH feature may be provisioned as either the Multi-Line Hunt Group or Series Completion feature depending on the CO switch type.
Page 324: At&T 5Ess Switch Translations
NI-1 BRI Provisioning AT&T 5ESS Switch Translations For the AT&T 5ESS switch, Capability Package “S” (2B) includes alternate voice/circuit-switched data on two B-channels. Data and voice capabilities include Calling Number Identification. Please note that in order to have simultaneous calls on the two B-channels, two DNs must be assigned with this package.
Page 325 NI-1 BRI Provisioning NT1 TYPE < enter NT1 type > DSL CLS <STD> RSTR MP <N> MDPKT <0> MTERM <2> USPID < enter value > MAXBCHL <2> ACT USER <Y> Fields that must be populated on Screens 4, 5, and 6: CKT TN <...
Page 326 NI-1 BRI Provisioning DN2 Translations (Note: DSL information was built with DN1) Fields that must be populated on Screens 1, 2, 3 and 4: DSL TN <C plus second Telephone number > ASSOC <U> OE < enter OE and type > USPID <...
Page 327 NI-1 BRI Provisioning Series Completion Feature Translations The sample screens shown below illustrate the translations for alternate voice and data hunting on one main DSL and three DNs forming a linear series completion group. Voice hunting is provided via Series Completion (Field 87, SERHLN).
Page 328 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 2 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (DSL INFO) >11. OE I 00101209 25. CUT DGTS 2228 14. D ISCN 007096 26. ACSR GRP _____ 15. D SERV 27. DFLT SRV _____ 16.
Page 329: Maintenance And Troubleshooting
NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 5 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (CKT) >64. TKS 72. SAR QTY 82. BUSY MONITOR N 65. TAUTO 73. SAR ORIG 83. ATT MLHG ____ 66. SHARED 74. SAR TERM 84. RBV TGN ____ 67.
Page 330 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 7 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (HIGH RUNNER FEATURE PARAMETERS >134. TG:GRPID 146. ACSR GRPNM ________ 158. QALWD 135. MOH ALW 147. EDS:GRPNM ________ 159. PRIORITY Q 136. IDP NAME _____ 148.
Page 331 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 9 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (HIGH RUNNER FEATURE PARAMETERS) >176. CALL FORWARDING FEATURE PARAMETERS (CF) FEATURE FWD TO DN TIMEOUT BSRING SIMINTER SIMINTRA /CFDBLAC 2228701 ________ ________ ________ ________ ________ ________ ________ ________...
Page 332 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 11 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (ODB) >210. ODB TN ____ 222. RATE 234. L IN LCN 211. LCC 223. N2 235. H IN LCN 212. RAX 224. T1 236. L 2W LCN 213.
Page 333 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 13 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (PPB2) >274. PPB2 TN 283. RATE 293. H PVC LCN 275. LCC 284. N2 294. L IN LCN 276. RAX 285. T1 295. H IN LCN 277.
Page 334 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 1 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (*)1. DSL TN C 2228701 SERVICES AND FEATURES SCREENS (*)4. MLHG ____ --------------------- ------- (*)5. TERM ____ BRCS FEATURE LIST (*)6. DSL OE _ _______ BRCS FEATURE PARAMETERS 7 to 9 (*)9.
Page 335 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 4 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (CKT) >34. CKT TN 2228701 CIRCUIT VOICE (CSV) CIRCUIT DATA (CSD) 35. CKT LCC 46. CSV 55. CSD 36. CKT RAX 47. CSV CHL ANY 56. CSD CHL 37.
Page 336 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 6 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT >106. BFGN ______ _ 109. FEATURE LIST (FL) ROW FEATURE A P C R FEATURE A P C R FEATURE A P C R FEATURE A P C R /LIDLXA Y N N 10 _____ _ _ _ _ 19 _____ _ _ _ _...
Page 337 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 9 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (HIGH RUNNER FEATURE PARAMETERS) >176. CALL FORWARDING FEATURE PARAMETERS (CF) FEATURE FWD TO DN TIMEOUT BSRING SIMINTER SIMINTRA /CFDBLAC 2228701 ________ ________ ________ ________ ________ ________ ________ ________...
Page 338 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 2 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (DSL INFO) >11. OE I 00101209 25. CUT DGTS 2228 14. D ISCN 007096 26. ACSR GRP _____ 15. D SERV 27. DFLT SRV _____ 16.
Page 339 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 5 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (CKT) >64. TKS 72. SAR QTY 82. BUSY MONITOR N 65. TAUTO 73. SAR ORIG 83. ATT MLHG ____ 66. SHARED 74. SAR TERM 84. RBV TGN ____ 67.
Page 340 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 7 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (HIGH RUNNER FEATURE PARAMETERS >134. TG:GRPID 146. ACSR GRPNM ________ 158. QALWD 135. MOH ALW 147. EDS:GRPNM ________ 159. PRIORITY Q 136. IDP NAME _____ 148.
Page 341 NI-1 BRI Provisioning 5ESS SWITCH LABNSC1 SCREEN 9 OF 14 RECENT CHANGE 23.8 DSL/BRCS ASSIGNMENT (HIGH RUNNER FEATURE PARAMETERS) >176. CALL FORWARDING FEATURE PARAMETERS (CF) FEATURE FWD TO DN TIMEOUT BSRING SIMINTER SIMINTRA /CFDBLAC 2228701 ________ ________ ________ ________ ________ ________ ________ ________...
Page 342: Northern Telecom Dms-100 Switch Translations
NI-1 BRI Provisioning Northern Telecom DMS-100 Switch Translations For the Northern Telecom DMS-100 switch, Capability Package “S” (2B) includes alternate voice/circuit-switched data on two B-channels. Data and voice capabilities include Calling Number Identification. Please note that the assignment of two DNs is required for this package. The DMS-100 switch also provides for alternate voice and data hunting on one DN via the Multi-Line Hunt Group feature.
Page 343 NI-1 BRI Provisioning EKTS <N> SPIDSFX option SPID_SUFFIX < enter spid suffix value > PVC option VERSION <FUNCTIONAL> ISSUE <2> Associate new DN with LTID using the NEW command: SONUMBER <<cr> or $> DN < enter DN > LCC <ISDNKSET> GROUP <...
Page 344 NI-1 BRI Provisioning Provision DN2 using the following translations Define a new Logical Terminal Identifier (LTID) using the SLT command: SONUMBER <<cr> or $> LTID < enter identifier value > FUNCTION <ADD> LTCLASS <BRAFS> CS <Y> PS <N> MAXKEYS <64> TEI_TYPE <DTEI>...
Page 345 NI-1 BRI Provisioning KEY <1> RINGING <Y> LATANAME < enter value > LTG < enter value > LEN_OR_LTID < enter assigned value > DMS100 normally delivers the Calling Party Nuinber and the Redirecting Number, if available. Attach LTIDs to LEN using SLT command: SONUMBER <<cr>...
Page 346 NI-1 BRI Provisioning Multi-Line Hunt Group Feature Translations The sample screens shown below illustrate the translations for alternate voice and data hunting on three DSLs and six DNs forming a circular hunt group. This hunting is provided via the Multi-Line Hunt Group feature. The screens shown in this section are examples, DNs shown on these screens should be replaced with applicable data.
Page 347 NI-1 BRI Provisioning QLT PSATS 141 LTID: PSATS SNPA: 201 DIRECTORY NUMBER: 2257141 LT GROUP NO: 13 LTCLASS: BRAFS DEFAULT LOGICAL TERMINAL: N EKTS: N CACH: N BEARER SERVICE RESTRICTIONS: NOPMD CS: Y PS: N VERSION: FUNCTIONAL ISSUE: 2 SPID-SUFFIX: LEN: HOST 01 1 10 01 TEI: DYNAMIC...
Page 348 NI-1 BRI Provisioning QLT PSATS 142 LTID: PSATS SNPA: 201 DIRECTORY NUMBER: 2257142 LT GROUP NO: 13 LTCLASS: BRAFS DEFAULT LOGICAL TERMINAL: N EKTS: N CACH: N BEARER SERVICE RESTRICTIONS: NOPMD CS: Y PS: N VERSION: FUNCTIONAL ISSUE: 2 SPID-SUFFIX: LEN: HOST 01 1 10 02 TEI: DYNAMIC...
Page 349 NI-1 BRI Provisioning LTID: PSATS SNPA: 201 DIRECTORY NUNBER: 2257143 LT GROUP NO: 13 LTCLASS: BRAFS DEFAULT LOGICAL TERMINAL: N EKTS: N CACH: N BEARER SERVICE RESTRICTIONS: NOPMD CS: Y PS: N VERSION: FUNCTIONAL ISSUE: 2 SPID-SUFFIX: LEN: HOST 01 0 07 01 TEI: DYNAMIC CUSTGRP: MDCSCA...
Page 350 NI-1 BRI Provisioning LTID: PSATS SNPA: 201 DIRECTORY NUMBER: 2257144 LT GROUP NO: 13 LTCLASS: BRAFS DEFAULT LOGICAL TERMINAL: N EKTS: N CACH: N BEARER SERVICE RESTRICTIONS: NOPMD CS: Y PS: N VERSION: FUNCTIONAL ISSUE: 2 SPID-SUFFIX: LEN: HOST 01 1 10 01 TEI: DYNAMIC CUSTGRP: MDCSCA...
Page 351 NI-1 BRI Provisioning LTID: PSATS SNPA: 201 DIRECTORY NUMBER: 2257145 LT GROUP NO: 13 LTCLASS: BRAFS DEFAULT LOGICAL TERMINAL: N EKTS: N CACH: N BEARER SERVICE RESTRICTIONS: NOPMD CS: Y PS: N VERSION: FUNCTIONAL ISSUE: 2 SPID-SUFFIX: LEN: HOST 01 1 10 02 TEI: DYNAMIC CUSTGRP: MDCSCA...
Page 352 NI-1 BRI Provisioning LTID: PSATS SNPA: 201 DIRECTORY NUMBER: 2257146 LT GROUP NO: 13 LTCLASS: BRAFS DEFAULT LOGICAL TERMINAL: N EKTS: N CACH: N BEARER SERVICE RESTRICTIONS: NOPMD CS: Y PS: N VERSION: FUNCTIONAL ISSUE: 2 SPID-SUFFIX: LEN: HOST 01 0 07 01 TEI: DYNAMIC CUSTGRP: MDCSCA...
Page 353 NI-1 BRI Provisioning LEN: HOST 01 1 10 02 ISG: 0 DCH: 1 ISG BRA Channel: 21 CARCODE: BX27AA PADGRP: NPDGP PM NODE NUMBER : PM TERMINAL NUMBER: LTID CS PS BCH/ISG Bd ------------- ---------- DYNAMIC PSATS DYNAMIC PSATS LEN: HOST 01 0 07 01 ISG: 0 DCH: 1 ISG BRA Channel: 24...
Page 354 NI-1 BRI Provisioning Siemens SSC EWSD Switch Translations For the Siemens SSC EWSD switch, Capability Package “S” (2B) includes alternate voice/circuit-switched data on two B-channels. Data and voice capabilities include Calling Number Identification. Please note that the assignment of two DNs is required for this package. The Siemens SSC EWSD switch provides for either voice or data hunting on one DN via the Series Completion feature.
Page 355 NI-1 BRI Provisioning DISPSUB:DN=6855917; NPA = 215 DN = 6855917 EQN = 20-0-5-4 MASKNO:03800 CAT = IBA MASKNO:03774 BCHDN = 2 MASKNO:03798 BCDN = SP &AU3 &C56 &C64 MASKNO:04535 CT = VI MASKNO:04396 LCC = BVCE RAX = 1 MASKNO:03785 BCHCT = 2 MASKNO:06282 IBCHCT = 2...
Page 356 NI-1 BRI Provisioning DISPSUB:DN=6855919; NPA = 215 DN = 6855919 EQN = 20-0-5-4 MASKNO:03800 CAT = IBA MASKNO:03774 BCHDN = 2 MASKNO:03798 BCDN = SP &AU3 &C56 &C64 MASKNO:04535 CT = VI MASKNO:04396 LCC =BVCE RAX = 1 MASKNO:03785 BCHCT = 2 MASKNO:06282 IBCHCT = 2 MASKNO:06288...
Page 357 NI-1 BRI Provisioning Series Completion Feature Translations The information listed below provides the translation for either voice or data hunting on three DSLs and six DNs forming a circular series completion group. The screens shown in this section are examples, DNs shown on these screens should be replaced with applicable data.
Page 358 NI-1 BRI Provisioning NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:05 0959 OMT-00/LEONLY 2816/04328 DISPSDNDAT:EQN=20-0-0-1&20-0-5-0&40-0-2-4: EXEC'D ISDN ACCESS DATA MASKNO:04328 MASKNO:00000 VIEW = EQN. EQN = 20-0-00-01. BCHEQN = 2. BCEQN = SP. BCEQN = AU3. BCEQN = C56. BCEQN = C64. CPDDN = 2156851189-VI. CPDDN = 2156851189-CMD.
Page 359 NI-1 BRI Provisioning CONTINUATION TEXT 0001 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:08 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DN. NPA = 215. DN = 6851189. EQN = 20-0-00-01. BCHDN = 2. BCDN = SP. BCDN = AU3. BCDN = C56. BCDN = C64.
Page 360 NI-1 BRI Provisioning CONTINUATION TEXT 0002 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:31 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6851189. EQN = 20-0-00-01. CT = VI. CAT = IBA. LCC = PKGSV. RAX = 1. COS = ICND.
Page 361 NI-1 BRI Provisioning CONTINUATION TEXT 0003 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:15 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6851189. EQN = 20-0-00-01. CT = CMD. CAT = IBA. LCC = PKGSD. RAX = 1. COS = ICND.
Page 362 NI-1 BRI Provisioning CONTINUATION TEXT 0004 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:19 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DN. NPA = 215. DN = 6851289. EQN = 20-0-00-01. BCHDN = 2. BCDN = SP. BCDN = AU3. BCDN = C56. BCDN = C64.
Page 363 NI-1 BRI Provisioning CONTINUATION TEXT 0005 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:22 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6851289. EQN = 20-0-00-01. CT = VI. CAT = IBA. LCC = PKGSV. RAX = 1. COS = ICND.
Page 364 NI-1 BRI Provisioning CONTINUATION TEXT 0006 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:26 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6851289. EQN = 20-0-00-01. CT = CMD. CAT = IBA. LCC = PKGSD. RAX = 1. COS = ICND.
Page 365 NI-1 BRI Provisioning CONTINUATION TEXT 0007 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:29 0959 OMT-00/LEONLY 2816/04328 TERMINAL SERVICE PROFILE DATA MASKNO:04328 MASKNO:00000 VIEW = TSP. EQN = 20-0-00-01. USID = 1. TSPID = 2156851189. TERMLIM = 1. TSPCOS = CHDBCHR: INTERRUPTION TEXT JOB 0959 CONTINUATION TEXT 0008 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18...
Page 366 NI-1 BRI Provisioning CONTINUATION TEXT 0009 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:35 0959 OMT-00/LEONLY 2816/04328 TERMINAL SERVICE PROFILE DATA MASKNO:04328 MASKNO:00000 VIEW = TSPDNCT. EQN = 20-0-00-01. TSPID = 2156851189. NPA = 215. DN = 6851189. CT= CMD: INTERRUPTION TEXT JOB 0959 CONTINUATION TEXT 0010 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18...
Page 367 NI-1 BRI Provisioning CONTINUATION TEXT 0011 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:40 0959 OMT-00/LEONLY 2816/04328 ISDN ACCESS DATA MASKNO:04328 MASKNO:00000 VIEW = EQN. EQN = 20-0-05-01. BCHEQN = 2. BCEQN = SP. BCEQN = AU3. BCEQN = C56. BCEQN = C64. CPDDN = 2156852199-VI.
Page 368 NI-1 BRI Provisioning CONTINUATION TEXT 0012 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:44 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DN. NPA = 215. DN = 6852199. EQN = 20-0-05-00. BCHDN = 2. BCDN = SP. BCDN = AU3. BCDN = C56. BCDN = C64.
Page 369 NI-1 BRI Provisioning CONTINUATION TEXT 0013 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:48 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6852199. EQN = 20-0-05-00. CT = VI. CAT = IBA. LCC = PKGSV. RAX = 1. COS = ICND.
Page 370 NI-1 BRI Provisioning CONTINUATION TEXT 0014 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:51 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6852199. EQN = 20-0-05-00. CT = CMD. CAT = IBA. LCC = PKGSD. RAX = 1. COS = ICND.
Page 371 NI-1 BRI Provisioning CONTINUATION TEXT 0015 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 6:22:55 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DN. NPA = 215. DN = 6852299. EQN = 20-0-05-00. BCHDN = 2. BCDN = SP. BCDN = AU3. BCDN = C56. BCDN = C64.
Page 372 NI-1 BRI Provisioning CONTINUATION TEXT 0016 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:22:58 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6852299. EQN = 20-0-05-00. CT = VI. CAT = IBA. LCC = PKGSV. RAX = 1. COS = ICND.
Page 373 NI-1 BRI Provisioning CONTINUATION TEXT 0017 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:01 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6852299. EQN = 20-0-05-00. CT = CMD. CAT = IBA. LCC = PKGSD. RAX = 1. COS = ICND.
Page 374 NI-1 BRI Provisioning CONTINUATION TEXT 0018 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:05 0959 OMT-00/LEONLY 2816/04328 TERMINAL SERVICE PROFILE DATA MASKNO:04328 MASKNO:00000 VIEW = TSP. EQN = 20-0-05-00. USID = 1. TSPID = 2156852199. TERMLIM = 1. TSPCOS = CHDBCHR: INTERRUPTION TEXT JOB 0959 CONTINUATION TEXT 0019 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18...
Page 375 NI-1 BRI Provisioning CONTINUATION TEXT 0020 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:11 0959 OMT-00/LEONLY 2816/04328 TERMINAL SERVICE PROFILE DATA MASKNO:04328 MASKNO:00000 VIEW = TSPDNCT. EQN = 20-0-05-00. TSPID = 2156852199. NPA = 215. DN = 6852199. CT= CMD: INTERRUPTION TEXT JOB 0959 CONTINUATION TEXT 0021 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18...
Page 376 NI-1 BRI Provisioning CONTINUATION TEXT 0022 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:16 0959 OMT-00/LEONLY 2816/04328 ISDN ACCESS DATA MASKNO:04328 MASKNO:00000 VIEW = EQN. EQN = 40-0-02-04. BCHEQN = 2. BCEQN = SP. BCEQN = AU3. BCEQN = C56. BCEQN = C64. CPDDN = 2156853119-VI.
Page 377 NI-1 BRI Provisioning CONTINUATION TEXT 0023 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:20 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DN. NPA = 215. DN = 6853119. EQN = 40-0-02-04. BCHDN = 2. BCDN = SP. BCDN = AU3. BCDN = C56. BCDN = C64.
Page 378 NI-1 BRI Provisioning CONTINUATION TEXT 0024 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:23 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6853119. EQN = 40-0-02-04. CT = VI. CAT = IBA. LCC = PKGSV. RAX = 1. COS = ICND.
Page 379 NI-1 BRI Provisioning CONTINUATION TEXT 0025 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:27 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6853119. EQN = 40-0-02-04. CT = CMD. CAT = IBA. LCC = PKGSD. RAX = 1. COS = ICND.
Page 380 NI-1 BRI Provisioning CONTINUATION TEXT 0026 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:30 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DN. NPA = 215. DN = 6853219. EQN = 40-0-02-04. BCHDN = 2. BCDN = SP. BCDN = AU3. BCDN = C56. BCDN = C64.
Page 381 NI-1 BRI Provisioning CONTINUATION TEXT 0027 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:34 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6853219. EQN = 40-0-02-04. CT = VI. CAT = IBA. LCC = PKGSV. RAX = 1. COS = ICND.
Page 382 NI-1 BRI Provisioning CONTINUATION TEXT 0028 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:37 0959 OMT-00/LEONLY 2816/04328 SUBSCRIBER MASKNO:04328 MASKNO:00000 VIEW = DNCT. NPA = 215. DN = 6853219. EQN = 40-0-02-04. CT = CMD. CAT = IBA. LCC = PKGSD. RAX = 1. COS = ICND.
Page 383 NI-1 BRI Provisioning CONTINUATION TEXT 0029 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:40 0959 OMT-00/LEONLY 2816/04328 TERMINAL SERVICE PROFILE DATA MASKNO:04328 MASKNO:00000 VIEW = TSP. EQN = 40-0-02-04. USID = 1. TSPID = 2156853119. TERMLIM = 1. TSPCOS = CHDBCHR: INTERRUPTION TEXT JOB 0959 CONTINUATION TEXT 0030 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18...
Page 384 NI-1 BRI Provisioning CONTINUATION TEXT 0031 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18 16:23:46 0959 OMT-00/LEONLY 2816/04328 TERMINAL SERVICE PROFILE DATA MASKNO:04328 MASKNO:00000 VIEW = TSPDNCT. EQN = 40-0-02-04. TSPID = 2156853119. NPA = 215. DN = 6853119. CT= CMD: INTERRUPTION TEXT JOB 0959 CONTINUATION TEXT 0032 NAVK1/BELLCORNJRB/APS 13.0 PS0071/000 96-01-18...
Page 385 NI-1 BRI Provisioning F–63 Maintenance and Troubleshooting...
Page 386 Glossary See ISDN terminal adapter . 7500B data module See ISDN terminal adapter data station 7500B data station Code used to associate incoming and outgoing calls with account code corresponding accounts, employees, projects, and clients. AT&T’s switched digital service for 56-kbps, 64-kbps Accunet restricted, and 64-kbps clear circuit-switched data calls.
Page 387 Glossary (alternate mark inversion) Line coding format in which a binary one is represented by a positive or negative pulse, a binary zero is represented by no line signal, and subsequent binary ones must alternate in polarity; otherwise, a bipolar violation occurs. AMI is used in the DS1 interface.
Page 388 Glossary A method of transmitting a short bitstream of digital data, asynchronous data such as printable characters represented by a 7- or 8- bit transmission ASCII code. Each string of data bits is preceded by a start bit and followed by a stop bit, permitting data to be transmitted at irregular intervals.
Page 389 Glossary Tie trunk on which incoming calls are routed to an operator automatic-start tie or other designated destination without a start signal, as trunk soon as the trunk is seized; the destination is specified during programming. Also called “automatic ringdown” or “auto-in”...
Page 390 Glossary See B-channel . Bearer-channel Behind Switch mode One of three modes of system operation, in which the control unit is connected to (behind) another telephone switching system, such as Centrex or DEFINITY, which provides features and services to telephone users. See also Hybrid/PBX mode and Key mode .
Page 391 Glossary SPM procedure for assigning line/trunk and extension board assignment modules to slots on the control unit . System programming procedure for renumbering board renumbering line/trunk and extension modules that have already been assigned to specific slots on the control unit . (Basic Rate Interface) Standard interface that specifies the protocol used between two or more communications systems.
Page 392 Glossary Team of individuals who answer the same types of calls. Calling group See CMS . Call Management System Cable that runs between buildings connected to the same campus cable communications system. (Call Accounting System) DOS- or UNIX System-based application that monitors and manages telecommunications costs.
Page 393 Glossary Data call made through an exclusively established and circuit-switched data maintained connection between data stations . call See COR . class of restriction Operation of digital facilities from a common clock. clock synchronization (Call Management System) DOS-based application that simulates the actions of a system operator by answering and distributing calls.
Page 394 Glossary Processor module , power supply modules , line/trunk and control unit extension modules , carriers , and housing of the system. Refers to telephone and adjuncts (if any) at an operator or console system programmer extension. Voice response application that automatically answers and CONVERSANT routes calls and executes telephone transactions.
Page 395 Glossary See DCE . data communications equipment See DHG . data hunt group See ISDN Terminal Adapter . data module See bps . data rate Special type of extension where data communications take data station place; includes DTE and DCE ; sometimes a telephone is also part of a data station.
Page 396 Glossary (data hunt group) Group of modem or ISDN terminal adapters which have a common access code. Calls are connected in a round-robin fashion to the first available data station in the group. See feature code . dial access See DNIS . Dialed Number identification Service Digit (usually a...
Page 397 Glossary See DS1 . Digital Signal 1 See DSE . digital switch element Mode of transmission in which the information to be digital transmission transmitted is first converted to digital form and then transmitted as a serial stream of pulses. See also analog transmission .
Page 398 Glossary (Digital Signal 0) Single 64-kbps voice or data channel . (Digital Signal Level 1) Bit -oriented signaling interface that multiplexes twenty-four 64-kbps channels into a single 1.544-Mbps stream. (Direct Station Selector) 60-button adjunct that enhances the call-handling capabilities of an MLX-20L or MLX-28D telephone used as an operator console.
Page 399 Glossary Final destination in the path of an electrical or endpoint telecommunications signal. (extended superframe format) Framing format consisting of individual frames of 24 eight- bit slots and one signal bit (193 bits) in a 24-frame extended superframe. See also D4 framing format.
Page 400 Glossary Equipment (often a trunk ) constituting a facility telecommunications path between the system and the telephone company central office ( CO ). See FRL . Facility Restriction Level Default state of a device or feature when an optional factory setting setting is not programmed by the user or system manager.
Page 401 Glossary Copper foil sheet (for power units) used to prevent foil shield excessive noise on the module. Condition of the system during certain programming or forced idle maintenance procedure; system prevents initiation of new calls. See FX . foreign exchange One of several segments of an analog or digital signal that frame has a repetitive characteristic.
Page 402 Glossary Trunk on which the communications system, after verifying ground-start trunk that the trunk is idle (no ground on tip lead), transmits a request for service (puts ground on ring lead) to the telephone company central office ( CO ). A fax unit, offering 400 by 100 dots per inch (DPI) in fine Group IV (G4) fax mode, that can operate at any speed for communication...
Page 403 Glossary One of three modes of system operation, in which the Hybrid/PBX mode system uses trunk pools and ARS in addition to personal lines . Provides a single interface ( SA buttons ) to users for both inside and outside calling. See also Behind Switch mode and Key mode .
Page 404 Glossary See ICOM buttons. intercom buttons Hardware and/or software that links systems, programs, or interface devices. (In-Range Out-of-Building protector) Surge-protection IROB protector device for off-premises telephones at a location within 1000 feet (305 m) of cable distance from the control unit. (Integrated Solution II or Integrated Solution III) Set of IS II/III UNIX System-based applications that augments and...
Page 405 Glossary Kilobits per second. kbps One of three modes of system operation, in which the Key mode system uses personal lines on line buttons for outside calls, with a separate interface ( ICOM buttons ) for internal calling. See also Behind Switch mode and Hybrid/PBX mode.
Page 406 Glossary Refers to inside system lines and outside trunks in general line/trunk terms. See also line and trunk . Physical interface on a module in the control unit for line/trunk jack connecting an outside trunk to the communications system. Also called “trunk jack.” Module on which the jacks for connecting central office line/trunk and lines/trunks and/or the jacks for connecting the extensions...
Page 407 Glossary Storage medium, similar in function to a floppy disk, that memory card allows information to be added to or obtained from the communication system through the PCMCIA interface slot on the processor module. Adjunct that allows users to receive, store, and use MERLIN Identifier information provided by caller identification services provided by the local telephone company.
Page 408 Glossary A type of data station that includes a modem as its DCE. It modem data station may also include an MLX telephone for simultaneous voice and data (MLX voice and modem data station), an analog multiline telephone (analog voice and modem data station), or a single-line telephone for dialing only (modem data-only station).
Page 409 Glossary The division of a transmission channel into two or more multiplexing independent channels, either by splitting the frequency band into a number of narrower bands or by dividing the channel into successive time slots. Customer-provided music source or Magic On Hold Music On Hold connected to the system through a loop-start jack.
Page 410 Glossary (off-premises telephone) Single-line telephone or other tip/ring device connected to the system by an 008 OPT module in the control unit. Appears as an inside extension to the system, but may be physically located away from the system. (off-premises extension) Signaling that uses the same path as voice-frequency out-of-band transmission and in which the signaling is outside the...
Page 411 Glossary Central office trunk that terminates directly on one or more personal line telephones. In Hybrid/PBX mode , a personal line cannot be part of a trunk pool . Also called “DFT” (direct facility termination). Also refers to lines represented on line buttons in Key Mode .
Page 412 Glossary Individual extension number assigned to a telephone in a prime line system operating in Behind Switch mode . Each telephone user has his or her own prime line and is automatically connected to that line when he or she lifts the handset. Module in the second slot of the control unit (Slot 0, to the processor module right of the power supply module ).
Page 413 Glossary (random-access memory) Computer memory in which an individual byte or range of bytes can be addressed and read or changed without affecting other parts of memory. See ROM . read-only memory System feature that allows an outside caller to gain access Remote Access to the system, almost as if at a system extension.
Page 414 Glossary Telephone buttons that provide a single interface to users SA buttons for both inside and outside calling. (Software Defined Network) AT&T private networking service created by specialized software within the public network. (station identification) Transmission of signals in one direction only across a simplex signaling telecommunications channel.
Page 415 Glossary Configuration in Key mode operation in which all outside square key lines appear on all telephones. See extension . station See extension jack . station jack See SMDR . Station Message Detail Recording See SAA . Supplemental Alert Adapter Momentary (320 ms to 1 second) on-hook signal used as a switchhook flash control signal.
Page 416 Glossary system renumbering Procedure used to change the numbers assigned to telephones, adjuncts, calling group s, paging groups, park zones. remote access , and lines/trunks. Type of digital transmission facility that in North America transmits at the DS1 rate of 1.544 Mbps. (time-division multiplex) Process where the transmission channel is divided into time slots.
Page 417 Glossary See UPS . uninterruptible power supply Measure of the power load drain of a module, telephone, unit load or adjunct . (uninterruptible power supply) Device that connects to the system to provide 117 VAC to the equipment when the commercial power source fails.
Page 418 Glossary (Wide Area Telecommunications Service) Service that WATS allows calls to certain areas for a flat-rate charge based on expected usage. Tie trunk on which the originating end transmits an off- wink-start tie trunk hook signal and waits for the remote end to send back a signal (a wink) that it is ready for transmission.
Page 420 Index Touch-Tone Receivers, 3-10 800 NI-BRI modules B-Channel Loopback Test, 4-56 Clock status, 4-90–4-91 firmware upgrades, 4-63 Incoming Data Call Test, 4-89–4-90 008 module, 2-10 Incoming Voice Call Test, 4-87–4-88 008 OPT module module problems, 4-74 Touch-Tone Receivers, 3-10 NI-1 BRI Provisioning Test, 4-75 012 modules Outgoing Data Call Test, 4-88–4-89 apparatus codes, 4-5...
Page 421 Index summary, 4-64 Circuit module firmware, upgrading overview, 4-63–4-64 Circuit pack, 3-1 B-Channel Loopback Test Clock status error messages, table, 4-60 interpreting results, 4-59 100D module, 4-90 800 NI-BRI module, 4-90–4-91 procedure, 4-57–4-59 Cold start, 1-21, see Restart results, 4-79–4-86 Control unit summary, 4-56–4-57 housing...
Page 422: Error Codes
Index DN, see Directory Number (DN) Feature Access Code, 3-6 Feature module, replacing diagram, 4-32 Electromagnetic interference procedure, 4-31–4-33 information, A-2 Federal Communication Commision Equal Access Codes, A-7 (FCC), A-2 Error code display, 1-19 Forced installation Error codes, 2-5–2-23 codes displayed during, 4-25–4-26 Error events, 4-102–4-4 error conditions during, 4-25–4-29 Error log...
Page 423: Mlx Telephone Display Buttons
Index Interlocking post, 4-3–4-4 Internal Loopback Test errors, 4-51 interpreting results, 4-50–4-51 Maintenance, 1-2 LEDs, 4-49 programming procedure, 4-47–4-50 on-site, 1-3–1-5 summary, 4-46–4-47 remote, 1-6–1-7 Internal Loopback test strategy, 1-18–1-26 summary, 4-46–4-47 terminal, 1-1–1-2 tools, 1-2 Maintenance-busy causes, 5-6–5-7 overview, 5-5–5-6 Jack assignment, 1-23 status Digital Subscriber Line (DSL),...
Page 424 Index Module tests busy-out or reset, 4-36 internal loopback, 4-1 notes, 4-36 Password overview, 4-33–4-34 changing, 1-9 procedure, 4-37–4-38 choosing, A-26 process, diagram, 4-34–4-36 entering, 1-9 Modules required for remote maintenance, 100D problems, 4-74–4-75 persistent problems, 4-38 PC (personal computer), setting up, 1-5 replacing, 4-61–4-62 PCMCIA card, see Memory Card test component check, 4-36...
Page 425 Index Programming maintenance backup, 4-1–4-2 on-site, 1-3–1-5 remote, 1-6–1-7 Security Hints choosing passwords, A-26 description, A-22 Educating Users, A-23, A-24, A-25 establishing a policy, A-25 Release 2.0 and earlier, 1-16 limiting Outcalling, A-27 Release 2.0 and later, 1-13 physical security, A-26 Release 2.1 or later, 1-15 Security information, A-12 Release 3.0 and later, 1-19, 1-6...
Page 426: Telephone Problems
Index System status Trouble reports, 1-19 procedure, 4-108 Trunk screen, 4-108–4-10 busy-out, 5-12–5-16 summary, 4-108 incoming, 5-4–5-5 System trouble reports, 1-19 maintenance-busy status, 5-8–5-10 manual correction of problems, 5-2– outgoing, 5-3–5-4 restoring, 5-20–5-22 Telephone problems symptom list, 5-1–5-2 analog multiline, 3-4 testing automatically, 5-5 Call Forwarding, 3-5 CAUTION, 3-1...

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Merlin legend 4.0

AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual

About this Book

Introduction

1 Introduction

1 Introduction

Error Logs, Access Logs, and System Inventory

Telephone Problems

Control Unit Problems

5 Central Office Problems

A Customer Support Information

B System Numbering Forms

500 D Backing up with a Memory Card

Maintenance and Troubleshooting

F NI-1 BRI Provisioning

Quick Links

Troubleshooting

Related Manuals for AT&T MERLIN LEGEND Release 3.1

Summary of Contents for AT&T MERLIN LEGEND Release 3.1

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Table of Contents