Page 1 AT&T ® MERLIN LEGEND Communications System Basic Rate interface Supplemental Reference...
Page 2 “Customer Support Information.” Trademarks 5ESS, MERLIN, MERLIN LEGEND, MLX-10, MLX-10D, MLX-20L, MLX-28D, and Magic On Hold are registered trademarks; AUDIX Voice Power, FAX Attendant System, HackerTracker, MERLIN MAIL, PassageWay, PictureTel, and Vistium are trademarks of AT&T in the U.S. and other countries.
Page 3: Table Of Contents
ISDN and BRI System Overview Applications 1-10 Modes of Operation 1-11 Call Handling 1-14 BRI Features Equipment and Operation Equipment Requirements for MERLIN LEGEND BRI System 800 CO-BRI Module Installation of Equipment Upgrading the MERLIN LEGEND System 2-13 Telephones 2-14 Adjuncts 2-15...
Page 4 Contents Planning Planning Overview System Planning Forms Control Unit Planning Line Connections Line Options Assigning Telephone Buttons 4-16 4-17 Features System Programming Basic Programming Considerations Service Profile Identifier (SPID) Clock Synchronization 5-10 BRI Timers BRI Access Button 5-13 System Programming Reports 5-19 Maintenance BRI Maintenance...
Page 5 Contents Planning Forms Customer Support Information Abbreviations AB-I Glossary GL-1 Index IN-I...
Page 6 Figures Overview MERLIN LEGEND BRI Capabilities 800 CO-BRI Module Directory Number Mapping Placement of BRI Access Button on an MLX Telephone Equipment and Operation 2-1 800 CO-BRI Module 2-2 LEDs on an 800 CO-BRI Module 2-3 Installing the 800 CO-BRI Module 2-4 Installing the 2.B Feature Module...
Page 7 Tables Equipment and Operation 800 CO-BRI Module Specifications 800 CO-BRI Module LEDs Pin Assignments for 8-Position Jack on an 800 CO-BRI Module 800 CO-BRI Module LEDs Planning 4-1 System Planning Forms Needed for BRI Planning 4-12 4-2 Timers System Programming 5-1 BRI Timer Settings 5-12 5-2 Timers...
Page 8 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. This plug will fit only into a grounding-type power outlet.
Page 9 Safety Do not attach the power supply cord to building surfaces. Do not allow anything to rest on the power cord. Do not locate this product where the cord will be abused by persons walking on it. Slots and openings in the module housings are provided for ventilation. To protect this equipment from overheating, do not block these openings.
Page 10: About This Book
LEGEND Communications System and provides the user with information specific to the use of a MERLIN LEGEND Basic Rate Interface (BRI) system. This information includes the equipment, features, programming procedures, planning procedures, and maintenance procedures that differ from the standard MERLIN LEGEND system.
Page 11 About This Book The names of fixed-feature, factory- If you press the Feature button on an imprinted buttons appear in bold. The MLX display telephone, the display lists names of programmed buttons are telephone features you can select. A printed as regular text. programmed Auto Dial button gives you instant access to an inside or outside number.
Page 12: Related Documents
About This Book 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 GBCS Publications Fulfillment Center by calling 1-800-457-1235. Document Title System Documents 555-601-110...
Page 13: How To Comment On This Document
About This Book Document Title Software-Linked Information Products ST-21 29-72 Vistium PV 1200 Installation Guide ST-2129-73 Vistium PV 1200 User’s Guide Vistium PV 1300 Installation Guide ST-2130-88 ST-2130-89 Vistium PV 1300 User’s Guide Documentation for Qualified Technicians 555-620-140 Installation, Programming, & Maintenance (lP&M) Binder (consists of 555-620-141, 555-620-142, 555-620-143, and 555-620-144 555-620-141...
Page 14 FEEDBACK FORM ® MERLIN LEGEND BRI Communications System Title: MERLIN LEGEND BRI Communications System Supplemental Reference Order No.: 555-601-111 Date: October 1994 Please rate the effectiveness of this book in the following areas: Good Fair Poor Excellent Applicable Ease of Use...
Page 15: Overview
Integrated Services Digital Network (ISDN) and Basic Rate Interface (BRI), the chapter covers the basic hardware and software requirements and the functions and features of the system. Also included are brief descriptions of the BRI features supported by the MERLIN LEGEND BRI system. Overview 1-1...
Page 16: Introduction
Figure 1-1. MERLIN LEGEND BRI Capabilities NOTE: The MERLIN LEGEND system does not support BRI when the MERLIN LEGEND BRI lines are shared by ISDN stations outside the system. “Shared” means that the same lines are connected to more than one station.
Page 17: Isdn And Bri
Overview ISDN and BRI To understand the BRI option, the user should be familiar with the Integrated Services Digital Network (ISDN) and the Basic Rate Interface (BRI). ISDN The Integrated Services Digital Network (ISDN) is a digital network interface used worldwide for the transmission of voice, data, video, and other services simultaneously over standard telephone wires.
Page 18: System Overview
Central Office switch servicing the AT&T Custom BRI protocol. The 5ESS central office (CO) must be running 5ESS Generic 8 Custom (5E8) or later software. The MERLIN LEGEND system must be a base of Release 2.0 or higher to be upgraded to MERLIN LEGEND BRI software release 2.B, and to operate properly with an 800 CO-BRI module.
Page 19: 800 Co-Bri Module
Type D, is specified. Although the 5ESS Generic 8 Custom (5E8) software supports two types of services over BRI lines (Point-to-Point and Point-to- Multipoint), the MERLIN LEGEND system only supports Point-to-Multipoint. 800 CO-BRI Module The 800 CO-BRI (Central Office-Basic Rate Interface) module is the MERLIN LEGEND system interface to BRI lines from the central office.
Page 20: Directory Number Mapping
Every BRI line physically plugged into a port on an 800 CO-BRI module equates to two MERLIN LEGEND lines. This is similar to the way one physical PRI line plugged into a 100D module becomes 23 lines on the MERLIN LEGEND system.
Page 21: Placement Of Bri Access Button On An Mlx Telephone
O v e r v i e w BRI Access Button The BRI Access button is a button programmed on the telephone console in the same way as a System Access or Intercom button. The BRI Access button is used to initiate a CO Transfer and to identify the last BRI line that placed or received a call.
Page 22: Applications
O v e r v i e w Applications The MERLIN LEGEND BRI system supports almost all of the applications supported by a standard MERLIN LEGEND system. These applications include: AT&T Attendant DOS Call Accounting System (CAS) CAS for Windows...
Page 23 Overview Integrated Solution Ill AUDIX Voice Power (AVP) Release 2.1.1 AT&T FAX Attendant™ System (FA) Release 2.1.1 — MERLIN LEGEND Integrated Solution Call Accounting System (CAS) Release 1.0 System Programming and Maintenance (SPM) Release 3.18 – Integrated Administration MERLIN Identifier MERLIN MAIL™...
Page 24: Modes Of Operation
O v e r v i e w Modes of Operation The MERLIN LEGEND BRI system operates in Key mode and, with limitations, in Hybrid/PBX mode. Behind Switch mode is not supported. Key Mode The MERLIN LEGEND BRI system was developed primarily to work in Key mode.
Page 25: Call Handling
When a user lifts the receiver and presses a BRI line button on a telephone, the MERLIN LEGEND system sets up a call to the 5ESS central office (CO). The button’s light-emitting diode (LED) turns to green to show that the line is active.
Page 26 MOH (if so programmed) when the MERLIN LEGEND user puts the call on hold. Transfer A user can transfer calls two ways on a MERLIN LEGEND BRI system. One way is to transfer calls by using the standard MERLIN LEGEND Transfer feature. The MERLIN LEGEND Transfer feature works the same with BRI lines as with other lines.
Page 27 Overview Recall Recall is not recognized by the 5ESS central office (CO) on BRI lines. Therefore, pressing the recall button on a telephone is ignored by the CO. Remote Access BRI lines can be programmed to use the Remote Access feature. Call Handling 1-13...
Page 28: Bri Features
O v e r v i e w BRI Features By using Basic Rate Interface (BRI) lines, the MERLIN LEGEND system can use features offered by the 5ESS central office. The BRI features described below are supported by the MERLIN LEGEND system. The Multi-Level Precedence and Preemption (MLPP) feature can be used only on a private configured network and, therefore, is used primarily by the Federal Government.
Page 29 When a BRI call comes in from the 5ESS central office (CO) and the user needs to transfer the call back outside the MERLIN LEGEND system, he or she can press the Transfer button, press the BRI Access button, and then dial the destination station, The user presses the Transfer button again to complete the transfer or hangs up.
Page 30 Overview Customer Originated Trace The Customer Originated Trace feature allows a user to trace the origin of the last call received on a given BRI line. This information is stored at the 5ESS CO. To retrieve it, the user must contact a CO representative. NOTE: Use of the Customer Originated Trace feature depends upon the practices of the local law-enforcement agencies.
Page 31: Equipment And Operation
Equipment and Operation This chapter describes the hardware used in and with the MERLIN LEGEND system and outlines the procedures for installation. Except as noted, a MERLIN LEGEND system supports the same telephones and adjuncts as a standard MERLIN LEGEND Communications System.
Page 32: Equipment Requirements For Merlin Legend Bri System
800 CO-BRI module Feature module with 2.B software If the entire MERLIN LEGEND BRI system is purchased new, the Feature module is already placed in the new Processor module. For procedures for installing a BRI module, refer to the section “installation of Equipment. ”...
Page 33: 800 Co-Bri Module
800 CO-BRI Module The 800 CO-BRI module serves as the Integrated Services Digital Network (ISDN) Basic Rate, two-wire U-interface between the MERLIN LEGEND system and the central office (CO) Basic Rate Interface (BRI) lines (see Figure 2-1). The 800 CO-BRI module consists of eight ports. Each port supports a BRI line (also called a Digital Subscriber Line or DSL).
Page 34 Equipment and Operation Figure Module 2-1. 800 CO-BRI 800 CO-BRI Module...
Page 35: Leds On An 800 Co-Bri Module
Equipment and Operation Red, green, and yellow LEDs indicate the status of the module (see Table 2-2): A lit red LED indicates an active alarm on one or more of the eight active Digital Subscriber Lines (DSLs), or indicates that the module is out of service.
Page 36: Pin Assignments For 8-Position Jack On An 800 Co-Bri Module
The wiring running from the network interface to the 800 CO-BRI module is the same as that for other line modules, which is usually a D8W cord. However, this depends upon the network interface used. See the MERLIN LEGEND Communications System Installation manual (555-620-1 41) for complete information.
Page 37: Installation Of Equipment
800 CO-BRI module and a 2.B Feature module. If the entire MERLIN LEGEND BRI system is new, the Feature module is already installed in the Processor module. If the MERLIN LEGEND system is being upgraded to a MERLIN LEGEND BRI system, the old Feature module must be replaced with the 2.B Feature module.
Page 38 Equipment and Operation Figure 2-3. Installing 800 CO-BRI Module NOTE: If the module is difficult to install, check it for alignment problems. Inspect the carrier for damage. If no damage is present, the module should snap into place. If the carrier is damaged, it should be replaced. Contact your authorized representative for a replacement carrier.
Page 39: Upgrading The Merlin Legend System
For more information on how to back up your MERLIN LEGEND system, refer to the System Programming and Maintenance Guide (555-620-1 42). Upgrading Your Hardware To upgrade your MERLIN LEGEND system, you need to install the 2.B Feature...
Page 40 Equipment and Operation c. Unplug any auxiliary power units. Because the power supply modules are already off, the sequence for removing auxiliary power cords is not important. Remove the Processor module from the carrier. a. Press up on the tab on the bottom of the module. b.
Page 41: Installing The 2.B Feature Module
Equipment and Operation Figure 2-4. Installing the 2.B Feature Module Installation of Equipment 2-11...
Page 42 1.xx software translations for system programming to Release 2.0. Complete steps 1 and 2. If you are installing a new MERLIN LEGEND system, Release 2.0 or later, complete this procedure: 1. Run the Restore program to “restore” the system software to the 2.B Processor module.
Page 43: Telephones
Equipment and Operation Telephones The MERLIN LEGEND BRI system supports the same telephones as a MERLIN LEGEND Communications System without BRI with the following exceptions: Analog multiline telephones cannot receive Calling Party Number/Billing Number information on their displays. A single-line telephone cannot have a BRI Access button, and therefore, cannot initiate a CO Transfer of a call.
Page 44: Adjuncts
Equipment and Operation Adjuncts The following adjuncts cannot be connected to a port on the 800 CO-BRI module: Universal Paging Access Module (UPAM) Loudspeaker paging equipment Music-On-Hold™ (MOH) software Maintenance alarm Adjuncts 2-14...
Page 45: Applications
Equipment and Operation Applications Applications that run on other releases of the MERLIN LEGEND system run on a system with an 800 CO-BRI module. Exceptions are: Applications connected to Voice Messaging Interface (VMI) ports cannot access the CO Transfer feature because CO Transfer requires the use of a BRI Access button.
Page 46: Features
Telephone Differences - the variations in the use of the feature with different telephones Feature Interactions - describes the differences in operation of standard MERLIN LEGEND system features when the BRI feature is used. If the MERLIN LEGEND feature operates normally, a feature interaction is not listed.
Page 47: All-Call Privacy/Per-Call Privacy
Features All-Call Privacy/Per-Call Privacy Description On outgoing calls, the All-Call Privacy (ACP) feature capability allows or prevents the delivery of the calling party number/billing number (CPN/BN) associated with each BRI line to the destination station. The All-Call Privacy feature should be ordered for each BRI line and specified as either activated or not activated.
Page 48 F e a t u r e s Feature Use All-Call Privacy Activated When the All-Call Privacy feature is activated, the calling party number/billing number (CPN/BN) for the BRI line is not sent to the destination station when a call is placed. Follow these steps to use Per-Call Privacy to override All-Call Privacy and send the CPN/BN for the BRI line for the next call only: 1.
Page 49 F e a t u r e s All-Call Privacy Not Activated When the All Call Privacy feature is not activated, the CPN/BN for the BRI line is sent to the destination station when a call is placed on the line. Follow these steps to use Per-Call Privacy to override All-Call Privacy and prevent the CPN/BN for the BRI line from being sent for the next call only: 1.
Page 50 Features Mode Differences In the Hybrid/PBX mode, BRI lines with different All-Call Privacy status should not be assigned to the same pool. Feature Interactions Auto Dial The feature code assigned to Per-Call Privacy by the local telephone company can be programmed on an Outside Auto Dial button. Directory The feature code assigned to Per-Call Privacy by the local telephone company can be programmed as an entry in the Personal or System...
Page 51: Automatic Callback
Features Automatic Callback Description Automatic Callback is one of the Local Area Signaling Services (LASS) features. With the Automatic Callback feature, the user can automatically place a call to the last telephone number from which a call was received on a BRI line, even if the caller’s telephone number is not known.
Page 52 Features 3. Dial the feature code assigned by the local telephone company to activate Automatic Callback. Wait for the confirmation tone (a three-burst tone) to ensure that the feature was activated correctly. The telephone number from which the last call was received on the BRI line is automatically dialed by the central office.
Page 53 F e a t u r e s 4. Dial the feature code assigned by the local telephone company to activate Automatic Callback. Wait for the confirmation tone (a three-burst tone) to ensure that the feature was activated correctly. The telephone number from which the last call was received on the BRI line is automatically dialed by the central office.
Page 54 Features Feature Interactions Auto Dial The feature code assigned to Automatic Callback by the local telephone company can be programmed on an Outside Auto Dial button. Directory The feature code assigned to Automatic Callback by the local telephone company can be programmed as an entry in the Personal or System Directory on an MLX-20L telephone.
Page 55: Automatic Recall
Features Automatic Recall Description Automatic Recall is one of the Local Area Signaling Services (LASS) features. With the Automatic Recall feature, the user can automatically place a call to the last telephone number the user called from a BRI Personal Line button without manually redialing the number.
Page 56 F e a t u r e s If the telephone number being called is busy, the central office “camps” or queues the recall attempt at the called number. When the number becomes available, the central office calls you back on the BRI line used to place the call.
Page 57 F e a t u r e s If the telephone number being called is busy, the central office “camps” or queues the recall attempt at the called number. When the number becomes available, the central office calls you back on the BRI line used to place the call.
Page 58: Calling Party Number/Billing Number
When the caller’s Calling Party Number information is available from the 5ESS central office, the information is shown on page 1 of the MLX display telephone. The number the caller dialed to reach the MERLIN LEGEND system is shown on page 2.
Page 59: Mlx Display Telephone Calling Party Number Information
Features Figure 3-1. MLX Display Telephone Calling Party Number Information Telephone Differences The Calling Party Number information is shown only on MLX display telephones, and not on analog multiline display telephones or single-line telephones. Calling Party Number/Billing Number 3-14...
Page 60: Co Transfer
— the BRI Access button. The caller uses the BRI Access button to dial the outside number to complete the transfer of the call. The central office processes the transfer and the lines to the MERLIN LEGEND BRI system are freed immediately for additional call handling. In contrast, the standard MERLIN LEGEND Trunk-to-Trunk Transfer ties up the lines for the duration of the call.
Page 61 — for example, a System Access (SA) button or Personal Line button, (even with a BRI line assigned) – a MERLIN LEGEND Trunk-to-Trunk Transfer is initiated and both lines used to complete the transfer are in use for the duration of the call.
Page 62 F e a t u r e s The LEDs next to the line button of the call being transferred goes off to indicate that the call was disconnected. The LEDs next to the BRI Access button and any other shared assignments of the line remain onto indicate that the BRI line is busy with the transfer destination call.
Page 63 F e a t u r e s Feature Interactions Allowed Lists If a restricted user attempts to dial an outside number on a BRI Access button and the number is not on an Allowed List assigned to the telephone, the user hears a reorder tone.
Page 64 F e a t u r e s Hold BRI calls made from a BRI Access button can be put on hold. If the user puts the call to the destination on hold while a CO Transfer is in progress, the user cannot return to the held-for-transfer call.
Page 65 If the user selects a button other than a BRI Access button (for example, a System Access or Personal Line button) to transfer a BRI call to an outside number, the MERLIN LEGEND Trunk-to-Trunk Transfer feature is activated. CO Transfer...
Page 66: Customer Originated Trace
F e a t u r e s Customer Originated Trace Description Customer Originated Trace is one of the Local Area Signaling Services (LASS) features. With the Customer Originated Trace feature, the user can call the central office to obtain the telephone number from which the incoming call was received on the BRI line without placing a call to the telephone number.
Page 67 F e a t u r e s Telephone Differences Customer Originated Trace should not be used on single-line telephones since a single-line telephone user cannot identify the BRI line on which an incoming call was received. Feature Interactions Auto Dial The feature code assigned to Customer Originated Trace by the local telephone company can be programmed as an Outside Auto Dial button.
Page 68: Multi-Level Precedence And Preemption (Mlpp)
F e a t u r e s Multi-Level Precedence and Preemption (MLPP) Description The Multi-Level Precedence and Preemption (MLPP) feature is available primarily for Federal Government configurations. MLPP allows a user to place calls of various priorities that alert with a distinctive ring and may preempt lower priority calls.
Page 69 4. Dial the number of your outside call. If the station being called is idle, an MLPP priority call alerts with a distinctive MLPP ringing pattern. On the MERLIN LEGEND system, you hear the priority ringing pattern (a four-burst ring on an MLX telephone...
Page 70: Planning
Connecting the BRI lines to the system Selecting options for those lines Assigning lines to the stations Only those options that involve MERLIN LEGEND BRI lines are contained in this guide. Planning Overview Planning for a MERLIN LEGEND BRI communications system is the same as for other releases of the MERLIN LEGEND system, with some exceptions.
Page 71: System Planning Forms
Planning System Planning Forms Whether planning options for a new system or modifying an existing system, record decisions on the appropriate planning form shown in Table 4-1. Work on copies of master forms from the System P/anning Guide (555-620-112). Appendix A of this guide includes forms for planning BRI features. Planning forms for BRI are also available in the Provisioning Guide and P/anning Forms (555-601-112).
Page 72: System Planning Forms Needed For Bri Planning
Planning Table 4-1. System Planning Forms Needed for BRI Planning System Planning Forms...
Page 73: Control Unit Planning
The 800 CO-BRI module contains eight BRI ports. Each port supports two MERLIN LEGEND BRI lines for a total of 16 lines per module. This allows connection of 16 BRI lines from a 5ESS Generic 8 Custom central office at the local telephone company.
Page 74 BRI Access button. The user selects the BRI Access button, dials the outside number, and completes the transfer. The central office processes the transfer and the BRI line to the MERLIN LEGEND system is freed immediately for additional call handling. If another type of line button is selected (for example, Personal Line), the MERLIN LEGEND Trunk-to-Trunk Transfer feature is invoked, which ties up both the incoming and outgoing lines for the duration of the call.
Page 75: Line Connections
P l a n n i n g Line Connections Line Jack Types The line jack type is determined by the type of module. The line jack type for the 800 CO-BRI module is BRI. Auxiliary equipment such as Music-On-Hold, loudspeaker paging, and maintenance alarms cannot be connected to BRI line jacks.
Page 76 BRI lines can be programmed to ring into the QCC queue just like other line types. Planning form instructions for the system with the MERLIN LEGEND BRI system are the same as for other releases of the MERLIN LEGEND system. Line Options...
Page 77 System Planning Guide (555-620-112) for instructions. Remote Access BRI lines can be programmed for Remote Access. Planning for this option for the MERLIN LEGEND BRI system is the same as for other releases of the MERLIN LEGEND system. Pools When the system is set up, BRI lines are not automatically assigned to any pool at system start-up.
Page 78: Line Options
CO Transfer. The type of terminal supported is specified. The terminal type for the MERLIN LEGEND BRI system is type D. The USOP also indicates if the features provided for each BRI line include the following features: —...
Page 79 Planning Indicate the features available on each BRI line: a. To indicate All-Call Privacy/Per-Call Privacy, put a check mark in the “ACP” column. b. To indicate Calling Party Number/Billing Number, put a check mark in the “CPN” column. c. To indicate Automatic Callback, put a check mark in the “AC” column. d.
Page 80 Planning Planning Form Instructions Refer to System Form 1, System Planning, “Control Unit Diagram. ” Complete the following information on System Form 3e, Outside Lines-BRI-Options, page 2: 1. To keep the factory setting (the first slot and port found in the system provides synchronization for the system) or if assigning a different module to provide primary clock synchronization: —...
Page 81: Timers
Planning Timers Timers ensure that the system takes the appropriate corrective action when no response is received from the network before the factory-set or programmed settings have expired. Since incorrect settings can hinder the operation of BRI facilities, consult with an A T&T representative or authorized dealer before making changes. The factory-set thresholds are standard settings and should rarely be changed.
Page 82 Planning Table 4-2. Timers Factory Allowable Description Setting Threshold Name 1,000-2,500 ms in The minimum time which Layer 2 must 1,000 ms T200 increments of wait for an acknowledgment of an 500 ms information frame before initiating retransmission procedures. 33,000 ms 10,000-33,000 ms The maximum time for which the Layer T203...
Page 83: Assigning Telephone Buttons
Assigning Telephone Buttons Assigning the kinds of buttons for telephones and direct-line consoles (DLCs) for a MERLIN LEGEND BRI system is the same as for other releases of the MERLIN LEGEND system. In addition to the other kinds of buttons (such as System Access or ICOM,...
Page 84: Features
System Form 5d, Queued Cal/Console (QCC). Features Assigning telephone, operator, group-assigned, and system features for a MERLIN LEGEND BRI system is the same as for other releases of the MERLIN LEGEND system. Refer to the System Planning guide (#555-620-112) for complete planning instructions.
Page 85: System Programming
System Programming This chapter contains the instructions to program a MERLIN LEGEND Basic Rate interface (BRI) system for BRI lines. Programming is done by using either an MLX-20L telephone console or a personal computer (PC) with System Programming and Maintenance (SPM) software.
Page 86: Basic Programming Considerations
System Programming Basic Programming Considerations Following are various items to consider when programming a MERLIN LEGEND BRI system. Up to 16 lines per 800 CO-BRI module can be assigned to Personal lines, pools, and calling groups. The default line label for these lines is “OUTSIDE.”...
Page 87: Service Profile Identifier (Spid)
Service Profile Identifier A Service Profile Identifier (SPID) is a unique identifier that associates a Basic Rate Interface (BRI) line on the MERLIN LEGEND system with a particular User Service Order Profile (USOP). The USOP contains the information needed by the central office (CO) to provide BRI service to the line.
Page 88 System Programming Procedure: Service Profile Identifier On the console Step Display/Instructions On the PC > System Programming: Make a selection Extensions System Opt ions SysRenumber Tables Operator LinesTrunks AuxEquip Exit NightSrvce Select LinesTrunks. Press Select the LinesTrunks menu. > Lines and Trunks: Make a selection LS/GS/DSl copy...
Page 89 System Programming On the console On the PC Display/Instructions Step Service Profile Id: Enter line number Backspace Enter Dial the line number Type the line number Enter the line number. (for example, 801 ) (for example, 801 ) and select Enter and press Line xxxx: Enter service profile id...
Page 90: Clock Synchronization
System Programming Clock Synchronization The time-division multiplex (TDM) clock source in the MERLIN LEGEND system provides the timing needed to synchronize the flow of digital transmission between the central office (CO) and the system. Any 100D module or any port on an 800 CO-BRI module can be the TDM clock source.
Page 91 System Programming Summary: Clock Synchronization System technician; system manager Programming Key, Hybrid/PBX Mode Not required Idle Condition Planning Form System Form 3e, Outside Lines-BRl Options The first 100D module or 800 CO-BRI port found Factory Setting sequentially in the control unit is the default primary loop clock.
Page 92: System Programming
System Programming Procedure: Clock Synchronization On the console On the PC Display/Instructions Step > System Programming: Make a selection System Extensions SysRenumber Options Operator Tables LinesTrunks AuxEquip NightSrvce Select the LinesTrunks menu. Select LinesTrunks. Select > Lines and Trunks: Make a selection LS/GS/DSl TIE Lines copy...
Page 93: System Programming
System Programming On the PC Display/Instructions On the console Step Primary System Clock: Enter slot number (1-17) Delete Backspace Exit Enter Type the slot number Dial the slot number Enter the slot number of the 800 of the 800 C0-BRl the 800 C0-BRl CO-BRl or 100D module.
Page 94: Bri Timers
System Programming BRI Timers The programmable times on the 800 CO-BRI module set the time limits for waiting for responses from the central office (CO). When no response is received f r o m t h e C O , t h e s y s t e m t a k e s t h e a p p r o p r i a t e c o r r e c t i v e a c t i o n . The factory settings for these timers are standard and rarely need to be changed.
Page 95 System Programming Entering Programming Menu Console: Select Sys Program Exit PC/SPM: Type Select any key Exiting Without Changes To exit from any screen without making changes, select on the console or Exit press F5 on the PC before saving your entry or menu selection. Summary BRI Timers Programmable by System technician;...
Page 96: Bri Timer Settings
System Programming Table 5-1. BRI Timer Settings Valid Range Description Factory Setting Timer 1000 ms 1000-2500 ms in T200 Minimum wait before increments of 500 ms retransmission 10,000-33,000 ms in T203 increments of 500 ms 1000-4000 ms in T303 increments of 500 ms 4 seconds 4-30 seconds in T305...
Page 97: Timers
System Programming On the PC On the console Step Display/Instructions BRI Lines: Make a selection ServProf Id Timers Select Timers. Select Timers. Select F3 . BRI Timer Settings: Make a selection T200 Timer T308 Timer T203 Timer T303 Timer T305 Timer Select the timer.
Page 98: Bri Access Button
System Programming BRI Access Button The BRI Access button is used for the CO Transfer feature and to select a Directory Number for which a Local Area Signaling Service (LASS) feature is activated. However, it is not used to place or receive calls. The BRI Access button is programmed onto one of the first ten buttons on a multiline telephone.
Page 99 System Programming Summary: BRI Access Button System technician, system manager Programmable by Key, Hybrid/PBX Mode Telephone must be idle Idle Condition System Form 4b, Analog Multiline Telephones Planning Forms System Form 4b, Digital/lSDN Telephone System Form 5a, Direct-Line Console (DLC)Analog System Form 5b, Direct-Line Console (DLC)- Digital/lSDN None...
Page 100 System Programming Access Button Procedure: BRI On the console Display/Instructions On the PC Step > System Programming: Make a selection Extensions System SysRenumber Options Tables Operator AuxEquip LinesTrunks More. PgUp, Go to the second screen of the Select Select System Programming menu. >...
Page 101 System Programming On the console On the PC Display/Instructions Step Xxxx: Extension Program Press HOME to Exit Sys Program Select Select Start programming. Start. Select Button: Extension Program Page 1 Page 2 Sys Program Select one of the first ten buttons Select the button Select the function the telephone.
Page 102 System Programming On the console Step Display/Instructions On the PC Select Button: Extension Program Page 1 Page 2 Sys Program Select F5 Selects Sys Return to System Programming. Program. Select Exit two times Select and then 11 To return to System PgUp.
Page 103: System Programming Reports
System Programming System Programming Reports The System Programming Reports are revised to include the following BRI information: System Information Report adds “800 CO-BRI” to its module types. Extension Information Report adds “BRI Access” to its button types. Error Log Report includes the new errors associated with BRI functioning (see Chapter 6, Maintenance).
Page 104: Maintenance
Maintenance Maintenance on the MERLIN LEGEND Communications System consists of automatic and demand tests and error messages. Similarly, there are automatic and demand tests that run on the 800 CO-BRI module. Errors appear in error logs, and error messages appear on the maintenance terminal display (the MLX- 20L telephone or the PC).
Page 105: Bri Maintenance
BRI Maintenance Maintenance for the Basic Rate Interface (BRI) focuses on the functioning of the 800 CO-BRI module. Because the MERLIN LEGEND system is using those BRI features offered by the central office (CO), the system maintenance is the responsibility of the CO. Still, there are automatic and demand tests that check...
Page 106: Accessing Maintenance Screens
M a i n t e n a n c e Accessing Maintenance Screens Accessing the maintenance screens in the MERLIN LEGEND BRI system is the same as for other MERLIN LEGEND releases. Follow the screens and instructions below. Procedure...
Page 107: Demand Tests
M a i n t e n a n c e Demand Tests Demand tests are diagnostic tests that check the functioning of hardware and software. Before running a demand test, the user must take the 800 CO-BRI module out of service.
Page 108 Maintenance (DSE) Internal Loopback Test Loopback Test checks the communication path between the The Internal (DSE) Processor module and the 800 CO-BRI module. If the test fails, the 800 CO-BRI module usually should be replaced. Follow the screens and instructions below to run an Internal Loopback Test. Screen Display Procedure Step...
Page 109 M a i n t e n a n c e Step Screen Display Procedure You return to the menu for that slot. s l o t x x : Select Demand Test. M a k e a s e l e c t i o n S t a t u s Demand Test B u s y - O u t...
Page 110 M a i n t e n a n c e Procedure Step Screen Display If the test fails, you receive error Demand Test Slot xx: messages and error counts. Board 800 CO-BRI Internal Loopback Test FAILED Xxxxxxxxxxxxxxxxxxxxxxx xx xx xx xx xx xx xx xx Exit After the test is run, restore the 800 CO-BRl module and exit maintenance as you Troubleshooting Guide,...
Page 111 M a i n t e n a n c e Follow the screens and instructions below to run a Board Controller Test, Screen Display Procedure Step At the Slot screen, enter the number of s l o t : the slot in which the 800 CO-BRI Enter slot number (O O-17) module resides.
Page 112 Maintenance Screen Display Procedure Step At the Demand Test Slot screen, Demand Test Slot xx: select BoardCntrlr. M a k e a s e l e c t i o n N o t e : B u s y o u t s l o t f i r s t B o a r d C n t r l r I n t L o o p b a c k E x i t...
Page 113 Maintenance After the test is run, restore the 800 CO-BRI module and exit maintenance as you would for any demand test (see the Maintenance and Troubleshooting Guide, #555-620-143). B-Channel Loopback Test The B-Channel Loopback Test checks the communication path between the Processor module and the 800 CO-BRI module interface for BRI lines.
Page 114 M a i n t e n a n c e Procedure Screen Display Step When the busy-out of the slot is Busy-Out Slot XX: complete, the Busy-Out Complete screen is displayed. Select Exit. Busy-Out Complete NOTE: If the busy-out cannot be completed, Exit a screen showing “Busy-Out FAILED”...
Page 115 M a i n t e n a n c e Step Screen Display Procedure If the test fails, you receive error B c h L o o p b a c k S l o t x x : messages and error counts.
Page 116: Bri Module And Clock Synchronization
Synchronization The time-division multiplex (TDM) clock reference for the system can be a loop source supplied by the CO, or a local source supplied by the MERLIN LEGEND system during certain maintenance conditions and events. The 800 CO-BRI module can be a local source of clock reference, and any Digital Subscriber Line (DSL) port on the 800 CO-BRI module can be the point of a loop source.
Page 117 Maintenance The 800 CO-BRI Module as the Clock Source If the 800 CO-BRI module functions as the local clock source, the maintenance software monitors all frame slip counters associated with all the activated Digital Subscriber Line (DSL) ports on the module. (A DSL port is activated when it has at least one Service Profile Identifier assigned to it.) When the counters reach an alarm level, the local clock is considered to be defective and is deactivated;...
Page 118 Maintenance BRI Clock Status by selecting The status of the clock on the 800 CO-BRI module can be viewed clock from the Slot menu. Follow the screens and instructions below to check the clock status of the 800 CO-BRI module. Procedure Screen Display Step...
Page 119: Port Screens-Digital Subscriber Lines
Maintenance Port Screens—Digital Subscriber Lines The ports on the 800 CO-BRI module are linked to Digital Subscriber Lines (DSLs). Therefore, a DSL option has been added to the Port menu. By choosing DSL from this menu, the user can check the status of, busy-out, restore, or check the error events for the DSL port.
Page 120 Maintenance Digital Subscriber Line Error Events To check the error events for a Digital Subscriber Line (DSL), the user must access the maintenance screens via the DSL port menu. Follow the screens and instructions below to check the error events for a DSL. Procedure Screen Step...
Page 121: Error Logs And Error Messages
Maintenance Error Logs and Error Messages There are two types of errors and two types of alarms: Permanent errors, which cause permanent alarms Transient errors, which cause transient alarms A permanent error causes major degradation of service and requires immediate action.
Page 122: Error Conditions
Maintenance Table 6-1. Error Conditions Abbrv. Permanent? Type of Error Transient? Sys. Alarm? SYNC BRI LOSS OF SYNC BRI SLIPS >88 CCRC BRI NET REQUESTED CCRCs DEAC BRI NET DEACTIVATE 2B+D BRI NET INV 2B+D LB ACT B1LB BRI NET INV B1 LB ACT B2LB BRI NET INV B2 LB ACT ILLB...
Page 123 0. Central Office-Induced Errors The 5ESS central office (CO) deliberately sends or receives incorrect information to test the transmission paths between the CO and the MERLIN LEGEND system. Network-Requested Corrupted CRCs (BRI NET REQUESTED CCRCs In this error condition, the CO requests that the 800 CO-BRI module send bad CRCs in the frames.
Page 124 (BRI NET INV B1 LB ACT) The B1 Ioopback testis invoked by the CO at installation to verify error-free transmission. When the MERLIN LEGEND system receives this request from the CO, the maintenance software turns on the red LED on the 800 CO-BRI module, logs the condition as a permanent error, and takes the B-channel out of service.
Page 125 Network took endpoint (NW TOOK ENDPOINT OOS) This error is logged when the MERLIN LEGEND system tries to put an endpoint in service and the network responds by taking it out of service, SETUP and RELease Message Errors...
Page 126 Permanent, or Transient). Table 6-2 lists the error messages and the possible solutions for each. Because many of the errors are caused by tests invoked by the CO, the system technician has little to do on the MERLIN LEGEND side. NOTE: Routine maintenance tests performed by the CO on BRI lines can result in the appearance of invalid “BRI errors”...
Page 127: Bri Error Messages
Maintenance Table 6-2. BRI Error Messages Code Description of Error Possible Solution BRI LOSS OF SYNC: 6COC Usually no action is required. Check the BRI module. If problem persists, contact the Service on the link has been lost. National Technical Service Center (NTSC). 6COD BRI SLIPS >...
Page 128 CO. The CO is not responding to messages sent 9404 NW NOT RESPOND TO SETUP by the MERLIN LEGEND system. Contact Service on the link has been lost. the CO. The CO is not responding to messages sent...
Page 129 Planning Form This appendix contains master copies of the system planning form you need to plan and program BRI lines/trunks connected to the system. Duplicate the master and work on the copy.
Page 130 MERLIN LEGEND Communications System — CO-BRI System Form 3e O u t s i d e L i n e - B R I O p t i o n s Features LASS Features Logical Line Directory Service Profile MLHG...
Page 131 MERLIN LEGEND Communications System — CO-BRI System Form 3e (Continued) Clock Synchronization — 100D or BRI Modules Secondary Clock Tertiary Clock Prmary clock Synchronization Synchronization Synchronization Slot No. Slot No. Slot No. DSL No. (BRI only) DSL No. (BRI only) DSL No.
Page 132 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. Outside the U.S.A., if you need assistance when installing, programming, or using your system, contact your AT&T representative.
Page 133 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 RJ11 C, RJ14C, RJ21X.
Page 134 Customer Support Information — The quantities and USOC numbers of the jacks required. — For each jack, the sequence in which lines are to be connected, the line types, the FIC, and the REN by position when applicable. Disconnection. You must also notify your local telephone company if and when this equipment is permanently disconnected from the line(s).
Page 135 Customer Support Information Automatic Dialers. WHEN PROGRAMMING EMERGENCY NUMBERS AND/OR MAKING TEST CALLS TO EMERGENCY NUMBERS: — Remain on the line and briefly explain to the dispatcher the reason for the call. — Perform such activities in off-peak hours, such as early morning or late evening.
Page 136 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 137 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 138: Limitation Of Liability
Customer Support Information Failure to follow AT&T’s installation, operation, or maintenance instructions Unauthorized system modification, movement, or alteration Unauthorized use of common carrier communication services accessed through the system 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...
Page 139 Customer Support Information The voice mail system, through proper administration, can help you reduce the risk of unauthorized persons gaining access to the network. However, phone numbers and authorization codes can be compromised when overheard in a public location, are lost through theft of a wallet or purse containing access information, or through carelessness (writing codes on a piece of paper and improperly discarding them).
Page 140 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 141 Customer Support Information If your Remote Administration and Maintenance feature requires that someone in your office transfer the caller to the Remote Administration and Maintenance extension, you should impress upon your employees the importance of only transferring authorized individuals to that extension.
Page 142 Abbreviations D-channel Automatic Callback data channel All-Call Privacy Direct Group Calling Automatic Recall Direct Line Console Automatic Route Selection Directory Number ATL telephone Analog Multiline telephone Direct Pool Termination D S E Integrated Solution Audix Voice Power digital switching element D S L Digital Subscriber Line B-channel...
Page 143 A b b r e v i a t i o n s SA button M F M System Access button Multi-Function Module S I D M L H G Station Identification Multi-Line Hunt Group SMDR M L P P Station Message Detail Recording Multi-Level Precedence and Preemption S P I D...
Page 144 A BRI feature in which the number of the originator of resistance. See also digital transmission, an outside call is transmitted over a BRI line to the MERLIN LEGEND system. Each incoming call to the application system over a BRI line can be the CPN/BN of the Software and/or hardware that adds functional calling party.
Page 145 CO may change the number to make routing easier, In either case, when an incoming call arrives at a MERLIN LEGEND system, the CO presents the DN to the MERLIN LEGEND system, jack A device, accessed by inserting a plug, that is used to...
Page 146 On the 800 CO-BRI module, 8 ports provide 16 Route Selection (ARS) feature to choose the least B-channels for transmission. In the MERLIN LEGEND expensive method to route a call. system each B-channel is mapped to a line with a port separate dial plan number.
Page 147 G l o s s a r y System Programming and Maintenance (SPM) A DOS- or UNIX-based application for programming and maintaining the communications system. Service Profile Identifier (SPID) A Service Profile Identifier associates a terminal with a User Service Order Profile (see below) that contains the information necessary to provide service to the tie trunk terminal.
Page 148 Index mode differences, 3-8 telephone differences, 3-8 Automatic Recall feature considerations and constraints, 3-12 description, 1-15, 3-10 100D module feature interactions, 3-12 clock source programming, 5-5—5-7 feature use, 3-10 local clock source, as, 6-13 mode differences, 3-12 maximum number of, 2-3 telephone differences, 3-12 5ESS central office (CO) Automatic Route Selection (ARS), 1-10, 1-11...
Page 149 I n d e x Digital Subscriber Line (DSL) defined, 1-6, 2-3 error events, 6-2, 6-17 monitoring, 6-16, 6-19 Call Accounting System (CAS), 1-8 5-6,6-13-6-14 Ports, Call Accounting Terminal (CAT), 1-8 port as clock source, 5-6 Call Handling, 1-11-1-14 Direct Line Consoles (DLCs), 1-10 Call Management System (CMS), 1-8 Direct Pool Termination buttons, 1-11 calling groups, 1-11, 5-2...
Page 150 MLPP, 1-16, 3-23—3-24 Integrated Administration, supported, 1-9 Trunk-to-Trunk Transfer, 1-12 Integrated Services Digital Network (lSDN), 1-2, 1-3 features, MERLIN LEGEND Integrated Solution AUDIX Voice Power (AVP), 2-15 Allowed List, 3-18 Integrated Solution 11, supported, 1-8 Auto Dial, 3-5, 3-9, 3-12, 3-22, 3-24...
Page 151 3-5 maintenance tests, 6-18 permanent error log, 6-18 MERLIN Identifier, 1-9 permanent errors, 6-18 MERLIN LEGEND Call Accounting System (CAS), 1-8 personal computer (PC), 5-1 MERLIN LEGEND Integrated Solution Call Accounting personal line buttons, 1-11 System (CAS), 1-9...
Page 152 I n d e x forms planning System Form 3e, Outside Lines—BRl Options, 5-3, 5-7, 5-11 System Form 4b, Analog Multiline Telephones, secondary clock source, 6-13 5-15 Secure Telephone Unit Ill (STU Ill), 2-13 System Form 4b, Digital/lSDN Telephone, 5-15 Service Profile Identifier (SPID) System Form 5a, Direct-Line Console (DLC)—...
Page 153 Universal Paging Access Module (UPAM), 2-14 upgrading the MERLIN LEGEND System, 2-9 User Service Order Profile (USOP), 1-10, 5-3 1-4, Vistium Personal Video system 1200/1300, supported, 1-9 Voice Messaging Interface (VMI) ports, 2-15 wiring, 800 CO-BRI Module, 2-6 I N - 6...
Page 154 1988 555-601-111 Graphics @AT&T October 1994...

AT&T MERLIN LEGEND Reference

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