AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual
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MERLIN LEGEND

Communications System

Release 2.0
Equipment and Operations Reference
AT&T 555-620-115
Issue 1
October 1992
TM

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Summary of Contents for AT&T MERLIN LEGEND Release 2.0

  • Page 1: Communications System

    AT&T 555-620-115 Issue 1 October 1992 MERLIN LEGEND Communications System Release 2.0 Equipment and Operations Reference...
  • Page 2: Electromagnetic Interference Information

    AT&T 555-620-115 Copyright © 1992 AT&T All Rights Reserved Issue 1 Printed in U.S.A. October 1992 Notice made to ensure that the information in this Every effort was book was complete and accurate at the time of printing. However, information is subject to change. 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...
  • Page 3: Table Of Contents

    Contents About This Book Terms and Conventions Used Product Safety Labels Security Related Documents How to Comment on This Document Introduction Components Functional Description Modes of Operation 1-12 Programming 1-30 System Capacities and Requirements 1-33 Release Differences 1-43 Hardware Components Control Unit Telephones and Consoles 2-13...
  • Page 4: Applications

    Contents Applications Voice Messaging Systems MERLIN MAIL Voice Messaging System MERLIN Attendant 4-16 Call Accounting System (CAS) 4-20 Accounting Terminal (CAT) 4-23 Call Call Management System (CMS) 4-26 InnManager Guest Management System 4-30 System Programming and Maintenance (SPM) 4-31 Integrated Solution II (IS II) 4-33 Integrated Solution Ill (IS Ill) 4-40...
  • Page 5 Contents Product Ordering Information Glossary GL-1 Index IN-1 Table of Contents...
  • Page 6 Contents Table of Contents...
  • Page 7 Figures Introduction Figure 1-1. System Components Figure 1-2. Functional Units 1-10 Lines Labeled for Key System Telephones 1-15 Figure 1-3. Figure 1-4. Lines Labeled for Modified Key System Telephones 1-17 Figure 1-5. Hybrid/PBX Mode 1-19 Figure 1-6. Behind Switch Mode 1-23 Figure 1-7.
  • Page 8 Figures Figure 2-22. Surge Protectors 2-57 Figure 2-23. Trouble Alarm Connections 2-59 Figure 2-24. Power Failure Alarm Connections 2-59 Figure 2-25. Power Failure DID Busy-Out Connections 2-60 Lines and Trunks Figure 3-1. Setting the 400EM Module DIP Switches for E&M Signaling Types 1C and 5 Figure 3-2.
  • Page 9 Tables Introduction Table 1-1, Modes of Operation Summary 1-12 Table 1-2. FCC Registration Numbers 1-28 Table 1-3. Hardware and Software Capacities 1-34 Table 1-4. Environmental Specifications 1-37 Hardware Components Table 2-1. Line/Trunk and Station Modules Table 2-2. Reusable MERLIN II Modules 2-11 Table 2-3.
  • Page 10 Tables 4-19 Table 4-5. MERLIN Attendants Required Table 4-6. Voice Channels Required 4-35 4-49 Table 4-7. Voice Channels Required 4-62 Table 4-8. Applications Printers Data Communications Support Table 5-1. Configurations of Data Stations viii Table of Contents...
  • Page 11: Important Safety Instructions

    he 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 12: Save These Instructions

    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 13: Customer Support Information

    Customer Support Information Support Telephone Number In the U.S.A. only, AT&T provides a toll-free customer Helpline (1-800-628-2888) 24 hours a day. Call the Helpline, or your authorized dealer, if you need assistance when installing, programming, or using your system. Outside the U. S. A., if you need assistance when installing, programming, or using your system, contact your authorized dealer.
  • Page 14 Customer Support Information Means of Connection. Connection of this equipment to the telephone network shall be through a standard network interface jack: USOC RJ11C, RJ14C, RJ21X. Connection to E&M tie trunks requires a USOC RJ2GX. Connection to off-premises stations requires a USOC RJ11C or RJ14C.
  • Page 15 Customer Support Information Installation and Operational Procedures The manuals for your system contain information about installation and operational procedures. Repair Instructions. If you experience trouble because your equipment is malfunctioning, the FCC requires that the equipment not be used and that it be disconnected from the network until the problem has been corrected.
  • Page 16 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. DOC Notification and Repair Information NOTICE: The Canadian Department of Communications (DOC) label identifies certified equipment.
  • Page 17 Customer Support Information matériel doit également être installé en suivant une méthode acceptée de raccordement. Dans certains cas, Ies fils intérieurs de I’enterprise utilisés pour un service individual à Iigne unique peuvent être prolongés au moyen d’un dispositif homologué de raccordement (cordon prolongateur téléphonique interne).
  • Page 18 Customer Support Information MERLIN LEGEND D.O.C. Ministère des Communications Location Label Placement du Canada emplacement de l'étiquette Customer Support Information...
  • Page 19 Customer Support Information Security of Your System—Preventing Toll Fraud As a customer of a new telephone system, you should be aware that there exists 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 20 Customer Support Information Use random sequence authorization codes, which are less likely to be easily broken. Deactivate all unassigned codes promptly. Ensure that Remote Access users are aware of their responsibility to keep the telephone number and any authorization codes secure. When possible, restrict the off-network capability of off-premises callers, via use of Call Restrictions and Disallowed List capabilities.
  • Page 21 Customer Support Information Limitation of Liability EXCEPT FOR PERSONAL INJURY, DIRECT DAMAGES TO TANGIBLE PERSONAL PROPERTY PROXIMATELY CAUSED BY AT&T, AND LIABILITY OTHERWISE EXPRESSLY ASSUMED IN A WRITTEN AGREEMENT SIGNED BY AT&T, THE LIABILITY OF AT&T, ITS AFFILIATES, SUPPLIERS, AND AUTHORIZED RESELLERS FOR ANY CLAIMS, LOSSES, DAMAGES, OR EXPENSES FROM ANY CAUSE WHATSOEVER (INCLUDING ACTS OR OMISSIONS OF THIRD PARTIES), REGARDLESS OF THE FORM OF ACTION,...
  • Page 22 Customer Support Information AUDIX Voice Power™ has the ability to limit transfers to subscribers only. You are strongly urged to limit transfers in this manner. Use the PBX or Key system administration capability to do the following: — Block direct access to outgoing lines and force the use of account codes/authorization codes.
  • Page 23 Customer Support Information If you have a special telephone line connected to your 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 24: About This Book

    About This Book This document covers all aspects of the MERLIN LEGEND™ Communications System Release 2.0, a state-of-the-art telephone switching system that provides both voice and data communication features. The document is intended for use by anyone who needs detailed information about the hardware and software that apply to the communications system, including support personnel, technicians, sales representatives, and account executives.
  • Page 25: Terms And Conventions Used

    About This Book Terms and Conventions Used In this document, the following terms are used to describe components of the communications system: telephone (synonymous with voice terminal) extension (synonymous with station) control unit (synonymous with switch) Although the terms line and trunk technically refer to different facilities, they are often used interchangeably.
  • Page 26: Related Documents

    About This Book Product Safety Labels An exclamation point inside a triangle and the word “caution” or “warning” indicate hazardous situations. These product safety labels appear as follows. WARNING: Warning indicates the presence of a hazard that could cause death or severe personal injury if the hazard is not avoided.
  • Page 27 About This Book Document No. Title System Documents 555-620-114 System Overview 555-620-110 Feature Reference Equipment and Operations Reference 555-620-115 Pocket Reference 555-620-116 555-620-111 System Programming 555-620-112 System Planning 555-62~113 System Planning Forms Telephone User Support 555-620-122 MLX-10D, MLX-28D, and MLX-20L Display Telephones User’s Guide MLX-10D, MLX-28D, and MLX-20L 555-620-123...
  • Page 28: How To Comment On This Document

    About This Book How to Comment on This Document We welcome your comments about the usefulness of this document. Please tell us what you like, as well as what you would improve. You may use the feedback form on the next page to let us know how we can continue to serve you.
  • Page 29: Introduction

    Introduction The MERLIN LEGEND Communications System is an advanced digital switching system that integrates voice and data communications features. Voice features combine traditional telephone features, such as Transfer and Hold, with advanced features, such as Group Coverage and Park. Data features enable the transmission of voice and data over the same system wiring.
  • Page 30: Components

    Introduction Components The system consists of the following basic components and optional auxiliary components: Basic components — Control unit — Telephones Auxiliary components — Adjuncts — Adapters — Applications Control Unit The control unit consists of the basic carrier and up to two expansion carriers. The basic carrier contains the processor module, power supply module, and line/trunk and station modules.
  • Page 31 Introduction 10-button* (10 buttons, membrane) 34-button* (34 buttons, membrane) 34-button Deluxe* (34 buttons, membrane) 10-button HFAI* (10 buttons, hands-free-answer, no adjuncts supported) 34-button BIS* (34 buttons, built-in speakerphone) 34-button BIS/DIS* (34 buttons, built-in speakerphone, 16-character display) BIS-10 (10 buttons, built-in speakerphone) BIS-22 (22 buttons, built-in speakerphone) BIS-22D (22 buttons, built-in speakerphone, 16-character display) BIS-34 (34 buttons, built-in speakerphone)
  • Page 32 Introduction 8110 (desk telephone, built-in speakerphone with volume control, auxiliary power jack for improving quality of built-in speakerphone, Mute button with LED indicator, and data jack for connecting a modem) 500MM, 554BMPA, 500SM (rotary dial) Vintage telephone; no longer available for sale or lease Adjuncts Adjuncts are pieces of equipment that connect directly to the control unit or to a telephone through an adapter (see Adapters).
  • Page 33 Introduction — Supplemental Alert Adapter (SAA) for connecting an alert (such as a horn or strobe) to an analog multiline telephone Applications The following applications for the system consist of software and/or hardware that add functions to the system. See the Applications chapter for details. MERLIN MAIL™...
  • Page 34 Introduction Figure 1-1 shows the components of the system. The numbered paragraphs following the figure correspond to the numbered items in the figure. Figure 1-1. System Components 1-6 Components...
  • Page 35 Introduction Control Unit. The backbone of the system, consisting of the basic and expansion carriers, power supply module, processor module, and line/trunk and station modules. The control unit connects telephone company lines/trunks with stations such as telephones and adjuncts. Line/Trunk and Station Modules. The components that connect telephone company lines/trunks and terminal equipment such as telephones, external alerts, and fax machines via jacks to the control unit.
  • Page 36 Introduction longer available for sale or lease) are compatible with the system: 5-button, 10-button, 34-button, and 34-button Deluxe. 11. MLC-5 Cordless Telephone. A cordless multiline telephone that connects to the control unit via an analog station jack. 12. Industry-Standard Single-Line Telephone. A touch-tone or rotary industry-standard telephone connected to the system via a 012 basic telephone module, a 008 OPT module, or an MLX telephone via an MFM.
  • Page 37: Functional Description

    Introduction 22. AC Power Outlet. A dedicated 115-VAC wall outlet (not controlled by an on/off switch) that supplies power to the control unit. Functional Description This section describes the functional units that make up the control unit, their relationships, and how signals are processed. The control unit contains the following functional units: Processor module Power supply module...
  • Page 38 Introduction Figure 1-2. Functional Units 1-10 Functional Description...
  • Page 39: Digital Switching

    Introduction Input/Output Bus. The I/O bus contains a 16-bit address bus and an 8- bit data bus. The address bus selects the module that receives instructions from the 68000 microprocessor in the processor module. The microprocessor provides instructions to the port processors and DSEs through the 8-bit data bus.
  • Page 40: Modes Of Operation

    Introduction Each module has a DSE to interface codecs or digital transceivers to the TDM bus. The actual digital switching occurs when the DSE is programmed by the system I/O bus to transmit data on or receive data from the TDM bus in specific time slots.
  • Page 41 Introduction Table 1-1. - Continued Hybrid/PBX Behind Switch WATS Trunk pools ICOM buttons SA buttons Line buttons, that is, outside trunks assigned to buttons on telephone Shared trunks (outside trunks (outside trunks (outside trunks and SA buttons) only) only) Prime Lines Queued Call Console (QCC) Number of extensions: <5(3...
  • Page 42 Introduction The Key mode of operation accommodates the following kinds of outside trunks: Loop-start trunks, including basic lines, WATS, and foreign exchange (FX) Ground-start trunks (only if registered as MF and if not strapped for Key mode, as described below) and emulated ground-start trunks on T1 facilities DS1 facilities Tie trunks and emulated tie trunks on T1 facilities...
  • Page 43 Introduction Line Access In Key mode (whether strapped and/or programmed), each outside line must be assigned to a line button on at least one telephone. As a result, the telephones most commonly used in Key mode are multibutton telephones. See Figure 1-3. Telephone # 2 Telephone # Telephone # 1...
  • Page 44 Introduction The following types of ICOM buttons can be used to make and receive inside calls in Key mode: An ICOM Ring button is used to make inside calls and to receive inside and outside calls transferred from another extension. When an ICOM Ring button is used to make an inside call, the telephone at the destination extension rings once per ring cycle to indicate an inside call.
  • Page 45 Introduction Modified Key System A Key system can be modified through system programming to provide trunk access for special business needs. For example, some business do not require every user to have access to a tie trunk, so the system can be programmed so that some telephones do not have access to all outside trunks.
  • Page 46 Introduction Key mode has the flexibility to provide trunk access according to user needs. For example, tie trunks can be terminated on the telephones of only those users who need them. The loop-start trunks traditionally associated with Key mode operation can cost less than the trunks used in the other modes.
  • Page 47 Introduction Since the outside trunks are pooled, outside numbers are not associated with individual telephones. When a pool is assigned to a line button during system programming, it is called a pool button. Users request specific trunk pools by dialing the trunk pool number (870-879) for the pool or by pressing a pool button, which gives one-touch access to a group of trunks.
  • Page 48: Line Access

    Introduction A feature commonly used in Hybrid/PBX mode is ARS. When an SA button is used to make an outside call and the ARS dial-out code is entered, the system selects the next available trunk from the type of pool that is most cost-effective for the call and gives the user access to that trunk.
  • Page 49: Operation

    Introduction An SA Originate Only button is used only to make inside and outside calls. Neither inside nor outside calls are received on an SA Originate Only button. The purpose of this type of button is to ensure that the user always has a button available to make or transfer a call, establish a conference call, answer a Call Waiting call, or pick Up parked calls.
  • Page 50 Introduction Hybrid/PBX Mode Considerations Hybrid/PBX mode provides the most efficient use of outside trunks since they can be pooled and are more readily available to users. The ARS feature can be programmed for more cost-effective use of pools. Hybrid/PBX mode provides greater functionality for single-line telephones than other modes of operation.
  • Page 51 Introduction Telephone # 1 Telephone # 2 Telephone # 3 Telephone # 4 Figure 1-6. Behind Switch Mode Modified Configurations In addition to accessing the host’s outside trunks, the Behind Switch system can be modified to bypass the host and provide direct access to outside trunks—for example, to connect WATS lines directly to the control unit so that they are available only for this system’s users.
  • Page 52 Introduction Telephone # 1 Telephone # 2 Telephone # 3 Telephone # 4 Figure 1-7. Behind Switch Mode with Direct Outside Trunks Depending on business needs, the following kinds of direct outside trunks can be added: Loop-start trunks, including basic lines, WATS, and FX DS1 facilities 1-24 Modes of Operation...
  • Page 53 Introduction Tie trunks Ground-start trunks (only if not registered as KF and not strapped for Key mode) The direct outside trunks must be terminated on individual telephones and must appear on the telephones’ line buttons. For example, if tie trunks are assigned to buttons on telephones 1 and 2, the buttons on those telephones appear as shown in Figure 1-8.
  • Page 54 Introduction Line Access In Behind Switch mode, the telephones used most commonly are multibutton telephones. Single-line telephones can also be used and can be set up in two ways. In one configuration, the user has constant access to the Prime Line buttons, but cannot make intercom calls or use system features.
  • Page 55 Introduction A combination of up to 10 ICOM Voice, ICOM Ring , and ICOM Originate Only buttons can be assigned to each telephone, except for single-line telephones, on buttons 1 through 10. See System Planning for button diagrams. The number of Prime Line buttons that can be assigned to a telephone is limited only by the number of trunks in the system and the number of buttons available on the telephone.
  • Page 56: Table 1-2. Fcc Registration Numbers

    Introduction NOTE: The communications system’s modes of operation (Key, Behind Switch, and Hybrid/PBX) do not correspond directly to these designations. Table 1-2 lists the registration number(s) used for each mode of operation. Table 1-2. FCC Registration Numbers Registration Number Mode of Operation Key or Behind Switch AS593M-72914-KF-E Key, Hybrid/PBX, or Behind Switch...
  • Page 57 Introduction MF Classification The system’s MF classification number is AS593M-72682-MF-E. This classification is applicable to all three modes of operation—Key, Hybrid/PBX, and Behind Switch. The system is registered under the MF classification if any of the following conditions are met. Key Mode of Operation One or more ground-start trunks are connected directly to the control unit.
  • Page 58: Programming

    Introduction Programming System Programming The system can be programmed with options for the following: Basic system operating conditions System renumbering Settings for lines/trunks Telephones and operator consoles Adjuncts Applications Optional features The system can be programmed by using one of the following: An MLX-20L telephone connected to one of the first five ports on the first MLX module in the control unit The built-in modem in the processor, which permits remote programming...
  • Page 59 Introduction A 4-pair modular cord (D8W) The monitor can be either monochrome or color. In addition, the following equipment is useful: A parallel printer (the PC needs a parallel port for the connection) A 1200-or 2400-bps modem NOTE: SPM uses Interrupt 4 and l/O address 3F8 for COM1. It uses Interrupt 3 and I/O address 2F8 for COM2.
  • Page 60 System Programming Labeling Data Print Cntr-Prg Language O p t i o n s AuxEquip NightSrvce Operator LinesTrunks Extension T a b l e s System SysRenumber Allow List Voice/Data* A l l Program Ext SystemLang LinesTrunks† Transfer MusicOnHold GroupAssign† Restart Default Numbering Positions...
  • Page 61: System Capacities And Requirements

    Introduction System Capacities and Requirements This section details the technical requirements and capacities of the system: Hardware and software capacities for the system Environmental requirements for placement of the control unit Power and grounding requirements for operating the system Capacities The system can be arranged as a stand-alone system or as part of a private network.
  • Page 62: Table 1-3. Hardware And Software Capacities

    Introduction Table 1-3, Hardware and Software Capacities Limit Constraining Factor Allowed Lists Number of lists Entries per list Digits per entry Automatic Route Selection Number of ARS patterns Subpatterns per pattern Routes per subpattern Number of fully programmable ARS tables Entries per table Entries across all tables 1600...
  • Page 63 Introduction Table 1-3. - Continued Constraining Factor Limit Listings per directory Personal Directory (MLX-20L only) Number of directories Listings per directory Disallowed Lists Number of lists Entries per list Digits per entry 100D module (maximum 2 per carrier) Endpoints (devices) Fax machines with message-waiting Software real-time limit Lines/Trunks...
  • Page 64 Introduction Table 1-3. - Continued Limit Constraining Factor Ports (not achievable simultaneously) Total Software real-time limit Voice and data (physical ports) Software real-time limit RAM limit Voice Announce to Busy stations Voice-mail interface RAM limit Digital data via 7500B Data Module Software real-time limits, loop-start only Paging Software real-time limits...
  • Page 65: Table 1-4. Environmental Specifications

    Introduction Environmental Requirements The control unit requires a regulated environment and can be located in any room or closet that is temperature controlled and clean. Do not mount the control unit where it will be exposed to direct sunlight. In addition, the control unit should not be co-located with air conditioning or ventilation units, compressors, fans and blowers, heaters, arc welders, or other such machinery that produces electrical interference.
  • Page 66 Introduction Table 1-4. - Continued Backboard Mounting Hardware Requirements Wood surface Wood screws Concrete surface, brick, cinder block Masonry anchors Toggle bolts Plaster, plasterboard Sheet-metal screws Sheet-metal surface Hardware should have a combined pullout force of 650 lb (294.8 kg). When mounting to sheet-metal walls, attach to structural members.
  • Page 67: Grounding Requirements

    Introduction CAUTION: Do not use switch control on AC outlet for control unit. Use approved ground (AC receptacle for 3-prong plug). Do not install control unit outdoors. Do not place control unit near extreme heat (furnaces, heaters, attics, or direct sunlight). Do not expose control unit to devices that generate electrical interference (such as arc welders or motors).
  • Page 68 Introduction The telephone company is responsible for providing protection of outside lines/trunks at the entrance to the site. The protection should consist of the following: Carbon blocks or gas discharge tubes connected to an approved ground Adequate bonding of the outside line/trunk protector ground and the power company ground WARNING: An improper ground can result in equipment failures and...
  • Page 69 Introduction Concrete-encased ground--must be an electrode, consisting of one of the following: — At least 20 feet (6.1 meters) of one or more steel reinforcing rods, each being at least 1/2-inch (1.27 cm) in diameter — 20 feet (6.1 meters) of bare copper conductor not smaller than #4 AWG, encased in 2 inches (5 cm) of concrete.
  • Page 70 Introduction NOTE: The 147A protector is usually not needed with the 391A1 power supply. It may be needed with the older 391A power supply module in heavy lightning areas. Complete installation instructions are provided with the protectors. Unit Loads A unit load is a measure of power (1.9 watts) used to determine the electrical load that the following components have on each carrier’s power supply: Telephones and adjuncts Only the telephones and adjuncts that connect to the analog and digital...
  • Page 71: Release Differences

    Introduction General Rule: If you can distribute the 800 DID modules and telephone modules equally across the carriers, you will prevent unnecessary drain on any one carrier. Also, depending on the system’s mode, the rules vary. The next two sections provide the rules for calculating unit loads in various modes.
  • Page 72 Introduction In addition, user and operator guides, quick reference cards, and telephone tray cards are available in all three languages. Programming and maintenance enhancements include the following: Additional Inspect capability in system programming Editing capability (Backspace selection) in extension programming Improvements to system reports An access log that records the last 20 times maintenance or system programming has been accessed...
  • Page 73 Introduction Integrated Administration provides a single interface through Integrated Solution Ill (IS-III) for programming entries common to the MERLIN LEGEND Communications System and AUDIX Voice Power. Any SPM Version 2. (where xx is replaced by numbers) provides a Convert function for use in upgrading the system from Release 1.0 or 1.1. This function converts a backup file from a Release 1.0 or 1.1 system to Release 2,0 format, allowing reuse of existing system programming on the upgraded system.
  • Page 74 Introduction A telephone user can send a timed flash (switchhook flash) on a loop- start trunk call on a System Access (SA) button. FAX Attendant System is a new application for sending and receiving fax messages; its interface is similar to the voice mail interface provided by AUDIX Voice Power.
  • Page 75: Hardware Components

    Hardware Components This chapter describes the basic hardware required for the communications system. It includes the control unit, digital or MLX telephones, analog multiline telephones, single-line telephones, system operator consoles, adapters and adjuncts for system telephones, and power-related accessories. Control Unit The control with telephones and unit connects telephone company lines...
  • Page 76 Hardware Components Besides the slots, both basic and expansion carriers have a backplane with an input/output (I/O) bus that interfaces with the modules. BACKBOARD Figure 2-1. Carriers Processor Module Placed in slot 00 of the basic carrier, the processor module controls system features and programming, The main component of the processor module is the feature module, This component provides all the system’s release-specific capabilities and features.
  • Page 77 Hardware Components The processor has two modular RS-232 jacks: one for Station Message Detail Recording (SMDR) and the other for system programming and maintenance via a personal computer (PC) with SPM software (see Figure 2-2). Figure 2-2, Processor Module A NiCad battery in the processor provides backup power for the real-time clock and nonvolatile RAM in case of power failure or system shutdown.
  • Page 78 Hardware Components When the system contains a 012 or 008 OPT module, a 129B Frequency Generator (ring generator) must be installed in the power supply module of each carrier that houses one or more of these modules. A green light-emitting diode (LED) on the power supply remains on as long as the module is receiving power.
  • Page 79 Hardware Components Different line/trunk modules support different types of telephone company trunks. The types of trunks include the following: Loop-start trunks— (incoming and outgoing calls) the simplest and most common facilities in the nation-wide telephone network. They provide incoming and outgoing calls and are intended primarily for single-line telephones and older private branch exchanges (PBXS).
  • Page 80: Control Unit

    Hardware Components of jacks for each type of module. The names of modules are numbers that identify their connectivity and port capacities. The first digit is always the number of trunk jacks, while the third (last) digit is the number of station ports supported.
  • Page 81: Table 2-1. Line/Trunk And Station Modules

    Hardware Components Table 2-1. Line/Trunk and Station Modules Specifications Module Line/Trunk Type Station Type Analog multiline Capacity: 8 analog stations telephone; CMS Signaling: analog multiline telephone protocol (40 kbps) Loop range: 1000 feet (305 meters). For In-Range Out-of-Building analog I ROB protectors, over 1000 feet (305 meters), service, use use Off-Premises Range Extender (OPRE).
  • Page 82 Hardware Components Table 2-1. - Continued Module Station Type Specifications Line/Trunk Type 400EM Tie trunk Capacity: 4 tie trunks Method of Completion: automatic or dial-repeating start; immediate-start, wink-start, or delay-dial-start Signaling: E&M type 1S, type 1C, type 5 400 GS/LS/TTR LS or GS PFT telephone (GS Capacity: 4 lines/trunks, 4 TTRs, 1 PFT telephone...
  • Page 83 Hardware Components GS/LS-MLX Module WARNING: The 408 GS/LS-MLX module applies to Release 2.0 and later. It is not compatible with Releases 1.0 and 1.1. The 408 GS/LS-MLX module (Release 2.0 only) is similar in concept to the 408 GS/LS module by providing four line and eight station ports; however, it provides MLX ports instead of analog ports.
  • Page 84 Hardware Components Figure 2-5. Control Unit Cover MERLIN II Release 3 Reusable Modules The following modules used in a MERLIN II Release 3 system can be used in this system: 391A1 power supply NOTE: While the 391A power supply can be reused in the system, it does not supply as much power as the 391 Al power supply module and should be replaced if anything is added to the station side of the system.
  • Page 85: Table 2-2. Reusable Merlin Ii Modules

    Hardware Components 800 line/trunk module 400 line/trunk module 400 E&M line/trunk module 012 basic telephone module 008 analog station module 408 analog line/trunk and station module Table 2-2 shows the reusable MERLIN II modules and their apparatus codes. Table 2-3 shows reusable MERLIN II hardware and associated apparatus codes or PECs.
  • Page 86: Table 2-3. Reusable Merlin Ii Hardware

    Hardware Components Table 2-2. - Continued Apparatus Comments Type Code 517A12 No lightning protection; 146A surge protector required Fully compatible 517B12 Fully compatible 400EM 517A14 No lightning protection; 146A surge 517A1 protector required 517B1 Fully compatible Fully compatible 517C1 8 0 0 517A4 lightning protection;...
  • Page 87: Telephones And Consoles

    Hardware Components Table 2-3. - Continued Apparatus Comments Type Code or Expansion carrier 403B Compatible but must order system cover separately (part 17A) 403D For Canadian use only; must order system cover separately (part 17A); required spring clips for the system cover are provided with the upgrade package 403F...
  • Page 88 Hardware Components MLX Telephones The following are the four telephones in the MLX telephone line, all of which support the PRI services that can be used with the system: MLX-20L telephone MLX-28D telephone MLX-10D telephone MLX-10 telephone Each of these telephones is available with factory-imprinted buttons in English, French, or Spanish, and in black or white.
  • Page 89 Hardware Components Model MLX-28D The MLX-28D telephone provides the following features: Can be used as a system operator Direct-Line Console (DLC) 28 line buttons Display (2 lines x 24 characters) 8 display-associated buttons 8 dedicated feature buttons Accommodates one or two DSSs This telephone is not wall-mountable.
  • Page 90 Hardware Components Model MLX-20L The MLX-20L telephone provides the following features: Can be used for system programming and as a DLC or a QCC system operator console 20 line buttons Display (7 lines x 24 characters) 14 display-associated buttons 8 dedicated feature buttons Accommodates one or two DSSs This telephone is not wall-mountable.
  • Page 91 Hardware Components Model MLX-10D The MLX-10D telephone provides the following features: 10 line buttons Desktop or wall-mount Display (2 lines x 24 characters) 8 display-associated buttons 8 dedicated feature buttons Figure 2-8, MLX-10D Telephone Telephones and Consoles 2-17...
  • Page 92 Hardware Components Model MLX-10 The MLX-10 telephone provides the following features: 10 line buttons 8 dedicated feature buttons Desktop or wall-mount Figure 2-9. MLX-10 Telephone Telephones and Consoles 2-18...
  • Page 93 Hardware Components Direct Station Selector The DSS is an optional adjunct that can be connected to an MLX-20L or an MLX-28D telephone, It enhances the capabilities of both DLCs and QCCs and, when connected to the MLX-20L telephone, facilitates programming. The DSS is shown in Figure 2-10.
  • Page 94 Hardware Components Remote Access dial code Listed Directory Number (the extension for the QCC queue) These buttons are used by a system operator for one-touch dialing and call transfer. Ten additional buttons are located at the bottom of the DSS. The 50 numbers programmed onto the DSS are considered a “page,”...
  • Page 95 Hardware Components Analog Multiline Telephones In addition to the MLX telephones, the analog multiline telephones in Table 2-4. can be connected to the system. 2-4. Analog Multiline Telephones Table Description Model 5-button telephone with membrane; no adjuncts 5-button* supported 10-button* 10-button telephone with membrane 34-button* 34-button basic telephone with membrane...
  • Page 96: Table 2-5. Single-Line Telephones

    Hardware Components Telephones Single-Line The system supports the single-line analog telephones listed in Table 2-5. NOTE: PFT telephones must be selected according to trunk type. If rotary trunks are used, PFT telephones must be rotary telephones (500MM is recommended). If telephones are to be connected to ground-start trunks, a ground-start button (KS23566,L1 ) must be added to each PFT station.
  • Page 97: Table 2-6. Telephones And Adjuncts Not Supported

    Hardware Components Telephones and Adjuncts Not Supported CAUTION: The following telephones and adjuncts cannot be used with the system. Connecting them can damage the telephones, adjuncts, and system. Table 2-6. Telephones and Adjuncts Not Supported Model Notes Uses 510D Personal Digital Communications Protocol (DCP) Terminal 7400 telephones and adjuncts (asynchronous data units and multiple...
  • Page 98: Table 2-7. Maximum Number Of System Operator Positions

    Hardware Components System Operator Consoles System operator consoles are telephones that are programmed for call handling and other system operator duties. They can be used in two configurations— QCC and DLC. QCCs are available only in Hybrid/PBX mode. A system operating in Hybrid/PBX mode can include both QCCs and DLCs. The maximum numbers of both types of system operator positions is shown in Table 2-7.
  • Page 99 Hardware Components The buttons on the QCC are factory-set with fixed features and cannot be programmed by the system operator or through centralized programming. The QCC fixed-feature buttons areas follows: Call: Five buttons used to answer incoming calls and make inside and outside calls.
  • Page 100 Hardware Components Forced Release: Disconnects the system operator from an active call and makes the system operator available to receive another call. Each QCC can have one or two DSSs attached. The system operator can use the buttons during call handling, for example, to extend a call, make an inside call, park a call, or see the availability of an extension.
  • Page 101 Hardware Components A multiline telephone assigned as a DLC through system programming can use both system operator features and telephone features available for non-operator multiline telephones to increase call-handling efficiency. The system operator features that can be assigned to buttons on the console are Alarm, Night Service, Missed Reminder, and Send/Remove Message.
  • Page 102: Table 2-8. Adjunct Summary

    Hardware Components Adapters and Adjuncts This section describes auxiliary hardware for the communications system. It includes adapters, adjuncts, and other accessories. The following table provides information about the hardware components that can be used with the system. Table 2-8. Adjunct Summary Interface LS or GS/LS...
  • Page 103 Hardware Components Table 2-8. - Continued Interface LS or GS/LS 012 or 008 OPT MLX Analog Analog Trunk Station station Station Station Equipment Jack Jack AT&T Products Jack Type Specifications Jack Jack Direct Station A maximum of 2 DSSs can be connected to an operator console.
  • Page 104 Hardware Components Table 2-8. – Continued Interface LS or GS/LS T/R 012 or 008 OPT M L X Analog Analog Staion Trunk Station Staion Station Equipment Specifications AT&T {roducts Jack Type J a c k J a c k J a c k J a c k Z34A Message...
  • Page 105 Hardware Components Adapters Adapters connect adjuncts to system and stations. They provide access for both voice and data signals. System Adapters Three adapters connect directly to the control unit: the channel service unit (CSU), the Loop-Start Trunk Adapter, and the Universal Paging Access Module (UPAM).
  • Page 106 Hardware Components Control Unit Maximum distance 440 ft RJ45 (Female) to 1 5 p i n D8W Cord D - S u b m i n i a t u r e ( M a l e ) t Custom Adpater 551 ST CSU REAR to CO...
  • Page 107 Hardware Components FRONT PANEL DTE LOOPBACK S E N D C O D E LOOPED ALARM L O W N E A R L O O P E D DENS FRAME LOSS CR C ERROR FRAME LOSS DIAGNOSTIC INTERFACE PULSES CRITICAL POWER LOCAL POWER...
  • Page 108 Hardware Components Multi-Function Module The Multi-Function Module (MFM) is an optional adapter for connecting tip/ring (T/R) or supplemental alert adjuncts to any MLX telephone. The MFM is a circuit board that mounts inside the telephone. Adjuncts plug into a modular jack on the MFM.
  • Page 109 Hardware Components Answering machines Fax machines Modems Credit card verification terminals Cordless telephones 2500-type (basic touch-tone) telephones Supplemental alerts such as bells, chimes, horns, and strobes notify people in noisy areas of incoming calls. The MFM is shipped with a KS29911 , L2 or L2 power unit that supports one MFM and one DSS.
  • Page 110 Hardware Components One end of a 4-pair cord plugs into the V.T. jack on the back of the GPA, and the other end plugs into the OTHER jack on the underside of the telephone. The 1-or 2-pair cord from the T/R device plugs into the TEL. EQUIP. jack on the GPA (see Figure 2-14).
  • Page 111 Hardware Components Join. This setting is used to add a recording device or a single-line telephone to a call that is in progress on the analog multiline telephone. You cannot originate or answer calls on this setting, Automatic. This setting is used in two ways: —...
  • Page 112 Hardware Components DCE/DTE Flip Board Figure 2-15. 7500B Data Module Front Panel The data module’s back panel has the following features (see Figure 2-1 6): Phone jack-connects an MLX telephone to the data module. Line jack—connects the data module to an MLX system module. Power connector—connects the data module to the DC power supply, which connects to an AC outlet.
  • Page 113 Hardware Components Female 25-pin EIA Figure 2-16. 7500B Data Module Back Panel When the 7500B Data Module is used with an MLX telephone, one end of the D8W cord is plugged into the PHONE jack on the data module, and the other end of the cord is plugged into the LINE jack on the MLX telephone.
  • Page 114 Hardware Components Multipurpose Enhancement Board. Provides an RS-366 Automatic Calling Unit (ACU) interface and converts the RS-232 interface on the main circuit board from asynchronous to synchronous. A V.35 adapter cable must be ordered separately to operate at the lower data rates and also at data rates of up to 56 and 64 kbps.
  • Page 115 Hardware Components Ability to make outgoing data calls manually and select user- programmable telephone numbers from the data module display on the front panel RS-366 interface to an ACU Synchronous Features with High-Speed Synchronous Enhancement Board V.35 interface (the adapter cable is provided when the board is ordered by using PEC 21624) Full-duplex operation at 48, 56, and 64 kbps Half-duplex operation at 56 kbps only...
  • Page 116 Hardware Components When a modem is connected to an analog multiline telephone using a GPA, data calls and voice calls are dialed by using the telephone dialpad. The modem and telephone do not operate independently; features assigned to the telephone also apply to the analog data station (modem and associated data terminal).
  • Page 117 Hardware Components SUPPLEMENTAL ALERT ADAPTER Figure 2-17, SAA Connections The telephone cord plugs into jack labeled TELEPHONE; the cord from the external alert device plugs into the jack labeled ALERTER; and the cord from the station jack plugs into the jack labeled CONTROL UNIT. Adjuncts An adjunct is an auxiliary piece of equipment, connected to the system or to telephones with an adapter, for example, a fax machine or an answering...
  • Page 118 Hardware Components System Adjuncts System adjuncts are auxiliary pieces of equipment that connect directly to the control unit. Station Message Detail Recording Printer A Station Message Detail Recording (SMDR) printer can be connected to the control unit at the SMDR jack on the processor. The SMDR printer must be located within 50 feet (15 meters) of the control unit;...
  • Page 119 Hardware Components NOTE: A ground-start/loop-start (GS/LS) line port should be programmed for loop- start operation for paging equipment. If the loop-start port is programmed for paging, it cannot be used for outside calls unless a PagePac Port Saver is used. The PagePac 20 with Zonemate 9 or Zonemate 39 is an external paging system using dual-tone multifrequency (DTMF) signaling that can be connected to a line/trunk port programmed for paging operation.
  • Page 120 Hardware Components connected to a loop-start port programmed for dial dictation (similar to loudspeaker paging). The UPAM does not support dial dictation equipment requiring contact closure. Fax Machine A fax machine can be connected to any T/R jack on the control unit or to a MFM.
  • Page 121 Hardware Components Supra Headset— a monaural headset with an adjustable headband. It offers a soft ear, comfortable cushion that reduces surrounding noise, making it easier to understand the caller. Supra NC Headset— a binaural headset with adjustable headband and ear cushion for working in noisy environments. Its noise-canceling soft microphone and voice expansion technology reduces up to 75% of the surrounding noise.
  • Page 122 Hardware Components Supra NC® Headset Supr® Headset Mirage® Headset StarSet® Headset Figure 2-18. Headsets Adapters and Adjuncts 2-48...
  • Page 123 Hardware Components Figure 2-19. Analog Multiline Telephone Headset Speakerphones Separate speakerphones can be connected to single-line sets Model S202A Hands-Free Unit (HFU) for analog multiline telephones allows calls to be made and received without using the handset. If an Auto Answer Intercom button is programmed and activated on the telephone, the HFU goes when a voice-announced call is received.
  • Page 124 Hardware Components NOTE: The quality of speakerphone transmission can be affected by equipment in the area of the microphone. Specialty Handsets Handsets for users who are hard of hearing (model K6S) are available for use with MLX telephones. Message Waiting Indicator The Z34A message-waiting indicator can be connected to single-line sets that do not have a Message LED.
  • Page 125: Power-Related Hardware

    Hardware Components Power-Related Hardware Power-related hardware can be added to the system to provide more power and added protection from power surges. Other accessories apply to specific conditions. NOTE: In most cases additional power surge protection is not needed. Power Accessories In a power failure, battery backup units can keep the system running for several hours.
  • Page 126 Hardware Components Requirements Table 2-9. Local Auxiliary Power Number of KS22911,L2 Number of 329A Number of MLX Number of DSSs Power Supplies Power Supplies Telephones Number of MFMs — — — — — — 3 or 1 for each MI-X more in 1 per telephone telephone after the...
  • Page 127 Hardware Components CAUTION: Running the system with more than 54 unit loads per carrier may not appear to do harm. However, this can cause the system to malfunction, thereby creating “no trouble found” situations, such as malfunctioning LEDs on multiline telephones, or power unit failure. Any station connected to the modules in the last two slots receives power from the auxiliary power unit instead of from the power supply.
  • Page 128 Hardware Components WARNING: The IROB protectors must be installed by a qualified service technician or installer. See the documentation packaged with the lROB protector for complete installation instructions. OFF-PREMISES ON-PREMISES Figure 2-20. Analog IROB Connection Power-Related Hardware 2-54...
  • Page 129 Hardware Components Figure 2-21. MLX IROB Connection Off-Premises Range Extender (OPRE) If a single-line or tip/ring telephone is located 1000 feet (305 meters) or further from the control unit, connect the telephone to the control unit using an off- premises range extender (OPRE). Power-Related Hardware 2-55...
  • Page 130 Hardware Components Also, if the network interface is greater than 25 feet (7.6 meters) from the control unit, connect the control unit to the network interface using an OPRE. See the documentation packaged with the OPRE for complete installation instructions. 146A and 147A Surge Protectors Protection from lightning and power surges is needed to safeguard system functioning.
  • Page 131: Figure 2-22. Surge Protectors

    Hardware Components Figure 2-22. Surge Protectors EMI Filter The Z200A electromagnetic interference (EMI) filter can be connected to the system between the control unit and a telephone. Instead of a D8W cord, the filter cord is plugged into the telephone LINE jack. The Z200A filter must be installed with the SMDR printer.
  • Page 132 Hardware Components An UPAM is needed because 48-VDC alerting devices require four contact closures and the ground-start or loop-start ports only have two. The UPAM provides the additional two. Alarm Trouble A ground-start or loop-start power failure transfer (PFT) port can be used to activate an alarm by connecting the port to an UPAM (see Figure 2-23).
  • Page 133: Figure 2-23. Trouble Alarm Connections

    Hardware Components Figure 2-23. Trouble Alarm Connections Figure 2-24. Power Failure Alarm Connections Power-Related Hardware 2-59...
  • Page 134: Figure 2-25. Power Failure Did Busy-Out Connections

    Hardware Components Figure 2-25. Power Failure DID Busy-Out Connections Power Failure Transfer Telephone A PFT telephone is a single-line telephone connected to a PFT jack on a 400, 400/GS/LS/TTR, 408, 408, GS/LS, 408 GS/LS-MLX (Release 2.0 only), 800, or 800 GS/LS module. In the event of a power failure, the system shuts off and the line for making PFT telephone automatically connects to the associated outside and receiving calls.
  • Page 135: Lines And Trunks

    Lines and Trunks Telephone lines and telephone trunks are facilities that carry voice or data communications. They are similar in form and function. The fundamental difference between a line and a trunk is as follows: a line connects a telephone to a switching system, and a trunk connects one switching system to another switching system.
  • Page 136: Ground-Start Lines/Trunks

    Lines and Trunks Loop-Start Trunk Connection The system’s control unit can connect to another system’s control unit from an off-premises telephone (OPT) line to a loop-start line/trunk (or vice versa) via analog facilities. A 008 OPT station module on system A’s control unit can be connected to a loop-start port on system B’s control unit.
  • Page 137 Lines and Trunks Analog Tie-Trunk Connection In an analog tie trunk connection, the system’s control unit is connected to the control unit of another system via a 400EM module. if both systems are on the same premises, this module can be connected directly to the other system if the other system has similar tie-trunk facilities For off-premises connection, the 400EM module can be connected via...
  • Page 138 Lines and Trunks Direction — Two-way (factory setting)—Calls can be made in either direction. Outgoing only—Calls can be dialed but not received (no ringing). — Incoming only—Calls can be received but not dialed (no dialing). Dial Mode — Rotary (factory setting) —...
  • Page 139 Lines and Trunks Signaling Types (also called seizure type) Wink (factory setting)—The originating end of the tie trunk — transmits an off-hook signal and waits for the remote end to send back a signal (a wink) indicating that it is ready to receive dialing information.
  • Page 140: Figure 3-1. Setting The 400Em Module Dip Switches For

    Lines and Trunks Figure 3-1. Setting the 400EM Module DIP Switches for E&M Signaling Types lC and 5 3-6 Tie Trunks...
  • Page 141: Table 3-1. Setting The 400Em Module Dip Switches

    Lines and Trunks Table 3-1, Setting the 400EM Module DIP Switches Type E&M Signaling Switch 1S (Default) Position Unprotected Protected Ports E&M Mode E&M Mode Mode Table 3-2. Sample DIP Switches for the 400EM Module Ports E&M Signal Switches 1 and 2 Set all switches to Default: no action required 3 and 4...
  • Page 142 Lines and Trunks E&M mode. This is a standard interface. The E&M signaling leads are isolated from the transmission leads, requiring a 3-pair wire interface. In the simplex mode, protective resistance is always included in the circuit. The E&M mode can be either protected or unprotected from high-voltage transients or fluctuations.
  • Page 143: Table 3-3. Tie-Trunk Compatibility

    Lines and Trunks Table 3-3. Tie-Trunk Compatibility Installation Situation Preferred Signaling Format System Far End From system Protected or Signaling Mode Protected or Signaling Mode Location and Type Unprotected and Type Unprotected Type 5 Simplex Type 5 Simplex System Same site or interbuilding MERLIN II Type 5 Simplex...
  • Page 144: Table 3-4. Type 1 Standard And Type 1 Compatible

    Lines and Trunks Table 3-4. Type 1 Standard and Type 1 Compatible E&M Switch Settings Switch Switch Position Setting Option Unprotected Protected Tie Trunk Networking The system supports only nontandem tie-trunk networking. A nontandem tie- trunk network is used primarily to connect telephone lines at both ends; it does not connect to another tie trunk or to other facilities.
  • Page 145: Figure 3-2. Nontandem Tie-Trunk Network

    Lines and Trunks Figure 3-2. Nontandem Tie-Trunk Network Direct Inward Dialing (DID) Lines/Trunks Direct Inward Dialing (DID) trunks allow incoming calls to reach specific individuals or facilities in the system without the assistance of a system operator. DID trunks are available only in the Hybrid/PBX mode. They are connected to the system on an 800 DID module or through DID-emulated channels on a 100D DS1 module.
  • Page 146 Lines and Trunks With DID service, the customer reserves blocks of DID numbers from the local telephone company. The DID numbers should correspond to the extension number for an individual, a calling group, or a Remote Access or pool dial-out code.
  • Page 147 Lines and Trunks The following items must be programmed for each trunk group: Type of DID Trunk — Wink-start (factory setting)—The preferred setting if the local telephone company can support it. It allows a greater probability of call completion during heavy calling periods, —...
  • Page 148 Lines and Trunks Expand the Inspect feature to show DID channels as well as LS/GS/TIE/Unassigned A new Inspect screen for DID channels Programming a DID B-channel automatically adds it to the first DID trunk block. The following considerations apply: The maximum number of DID trunks in a DID trunk block is the system maximum number of trunks (24 or 80, depending on system configuration).
  • Page 149 Lines and Trunks Number of Digits to Delete (a number from 0 to 4 digits, factory setting = 0) describes the number of digits to delete from the incoming address digits. A values greater than 4 will be blocked. Digits to Add (a number from 0 to 9999, factory setting = 0) describes the digits to prepend to the collected digits in order to determine a routing number, The following options can be programmed on a DID trunk-by-trunk basis:...
  • Page 150: Ds1 Facilities

    Lines and Trunks DS1 Facilities A Digital Signal 1 (DSl) facility is a transmission system that transports digital signals in the DS1 format. The interface that allows the connection of DS1 facilities to the system is the 1000 module. Through this module, voice and data calls can be made or received using a DS1 facility.
  • Page 151 Lines and Trunks Megacom WATS service for domestic long-distance outward voice calls; PRI on the system does not support access to international Megacom WATS service. Megacom 800 for domestic toll-free incoming voice calls. PRI on the system does not support access to international Megacom 800 service. T1 and PRI services support Megacom 800 with or without Dialed Number Identification Service (DNIS), also called Routing by Dial Plan.
  • Page 152 Lines and Trunks Primary Rate Interface (PRI) The Primary Rate Interface (PRI) is a standard access arrangement that can be used to connect the system to a network providing voice and digital data services through a 4ESS™ Generic 16, a 5ESS Generic 6, and a 5ESS serving the FTS2000 network.
  • Page 153 Lines and Trunks and to identify which frames contain signaling information. The framing information repeats once every 12 frames; these 12 frames form the 134 superframe. This framing format is used by most DS1 equipment. ESF Framing Format. The ESF format extends the 12-frame D4 superframe to a 24-frame superframe, hence its name.
  • Page 154: Table 3-5. Line Compensation Settings

    Lines and Trunks premises and is used to connect the system to DS1 network facilities. The CSU has three functions: It terminates an outside DS1 facility on the 100D module. It ensures that the signals entering the public network comply with the requirements of the DS1 facility as specified by the FCC.
  • Page 155 Lines and Trunks Backup synchronization in the event of a maintenance failure can be provided by programming the second and third installed modules as secondary and tertiary synchronization. In addition, the source of synchronization can be factory set to “loop clock reference source”...
  • Page 156 Lines and Trunks The framing and signaling formats depend on the network and interconnection devices (CSUs) used. For example, many CSUs only support ZCS line coding. NOTE: Digital data up to 64 kbps is possible only in PRI mode. An ESF-T1 CSU must be used for interbuilding DS1 connections. 3-22 DS1 Facilities...
  • Page 157: Applications

    Applications CAUTION: This chapter is intended solely as an overview of the applications that can be connected to the system. For information about the use of any application listed here, see the documentation for that product. following applications can be connected to the system for enhanced call- handling and system management capabilities: Standalone voice messaging applications —...
  • Page 158 Applications Integrated Solution III (IS Ill) incorporates the following applications: — AUDIX Voice Power — CAS — SPM — Fax Attendant — CONVERSANT Intro Primary Rate Interface (PRI) applications — Group IV (G4) Fax — Video Conferencing Optional telephone service —...
  • Page 159: Table 4-1. Application Capacities And Modes Of

    Applications Table 4-1. Application Capacities and Modes of Operation Hybrid/ Behind Capacity Switch Application MERLIN MAIL Voice Messaging System (2 or 4 ports) Number of mailboxes MERLIN Attendant Number of lines/trunks (each) Number of agents (each) Number of external alerts (each) InnManager Guest Management System SPM (standalone) IS II...
  • Page 160: Voice Messaging Systems

    Applications Voice Messaging Systems CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. A voice messaging system (VMS) is an application that provides call answering services and may provide voice mail services as well.
  • Page 161 Applications CAUTION: Your Voice Mail system permits callers to leave verbal messages for system users or gain access to the back-up position in an emergency as well as create and distribute voice messages among system users. The Voice Mail system, through proper administration, can help you reduce the risk of unauthorized persons gaining access to the network.
  • Page 162: Table 4-2. Mode Codes

    Applications Tip/ring ports on an 012 module can be programmed either as generic VMI ports or integrated VMI ports. The MERLIN MAIL Voice Messaging System and AUDIX Voice Power use streams of touch-tone codes, called mode codes, to communicate with the system’s control unit. Because they use mode codes, these applications must be connected to integrated VMI ports, MERLIN Attendant and IVP Automated Attendant, which do not use mode codes, connect to generic VMI ports.
  • Page 163: Table 4-3. Ttrs Required By Voice Messaging Systems

    Applications Table 4-3. TTRs Required by Voice Messaging Systems No. of 400 or No. of No. of No. of 012 400 GS/LS/TTR TTRs Required Modules VMI Ports Modules < VMI Port Capabilities VMI ports use switchhook flashes in the same way single-line telephones do for Hold, Transfer, Conference, and Drop.
  • Page 164 Applications Far-End Disconnect When a far-end disconnect signal is detected on an outside line/trunk on which a call is made to or received from a VMI port, the system sends the disconnect signal to the VMI port, whether or not that port is the only party left on the call. If another party is still on the call, the VMS decides whether to continue or disconnect the party.
  • Page 165: Merlin Mail Voice Messaging System

    Applications MERLIN MAIL Voice Messaging System CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. The MERLIN MAIL Voice Messaging System is a standalone application that provides the following integrated call-handling services: Automated Attendant Service Call Answer Service...
  • Page 166 Applications Supervised transfer— the Automated Attendant transfers the call and can retrieve it if the transfer is unsuccessful. If the called party is not a subscriber, the caller can opt to be transferred to another location. No transfer— the Automated Attendant transfers the call, and the caller is prompted to leave a message.
  • Page 167 Applications Pager Notification calls the user at a designated number when a new message is received. However, the user cannot log in to the VMS. Broadcast Lists allows the system administrator to send a message to every user on the communications system. However, this message does not light message LEDs and does not cause outcalling.
  • Page 168: Group Calling

    Applications The MERLIN MAIL Voice Messaging System cannot be used with MERLIN Attendant. Feature Interactions C o v e r a g e All extensions that need coverage are assigned to a coverage group through system programming The MERLIN MAIL Voice Messaging System ports are assigned to a calling group designated as the coverage receiver for the coverage group.
  • Page 169: Ringing Options

    Applications Night Service The MERLIN MAIL Voice Messaging System Automated Attendant Service works with the Night Service feature to provide specialized after- hours service. The Automated Attendant can answer calls on lines it does not handle during business hours or can direct calls to ring at a specific night extension or department, such as Building Security.
  • Page 170 Applications Specify the VMS Transfer Return Interval, that is, the number of rings before a call transferred by the MERLIN MAIL Voice Messaging System is sent to the backup position (system operator). Set Inside (intercom) Dial Tone to outside. Assign call restrictions to each VMI port used to connect the MERLIN MAIL Voice Messaging System.
  • Page 171: Table 4-4. Merlin Mail Voice Messaging System Ports Required

    Applications Table 4-4. MERLIN MAIL Voice Messaging System Ports Required No. of No. of VMI Ports Incoming Subscribers or Required Lines/Trunks Busy-hour Calls 1 to 6 1 to 20 7 to 18 21 to 60 MERLIN MAIL Voice Messaging System 4-15...
  • Page 172: Merlin Attendant

    Applications MERLIN Attendant CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. The MERLIN Attendant is a standalone application that answers incoming calls and plays a menu of recorded prompts.
  • Page 173 Applications If the extension called is busy or unanswered, or after business hours, calls can be directed to an answering machine to allow callers to leave messages. The MERLIN Attendant can transfer calls to fax machines, if the fax extension number is specified and the caller dials it. The MERLIN Attendant provides 64 seconds for recording up to five standard messages, including the caller greetings used during and after business hours, a hold announcement for a caller who is being...
  • Page 174 Applications Transfer If a caller incorrectly specifies the answering VMI port as the desired transfer destination station, the VMI port may park the call. Calls on generic VMI ports cannot be transferred to telephones that have Remote Call Forward activated. System Programming Assign all the MERLIN Attendant ports to a calling group and set the group type to VMI Generic.
  • Page 175 Applications Table 4-5. MERLIN Attendants Required No. of Attendants Busy-hour Incoming Required Lines/Trunks calls 1 to 6 1 to 25 7 to 9 25 to 50 10 to 12 50 to 100 MERLIN Attendant 4-19...
  • Page 176: Call Accounting System (Cas)

    Applications System (CAS) Call Accounting CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. CAS is a software application for businesses that need to manage telephone usage and control costs by tracking, sorting, and recovering telephone charges.
  • Page 177 Applications Detail reports provide detailed, call-by-call information for each — extension or (with CAS/H) by room. — Selection reports organize information on the basis of user- specified criteria, allowing trends and problems to be highlighted. — Account Code Detail Report lists every call associated with each account code entered by users.
  • Page 178 Applications Feature Interactions Account Code Entry CAS uses the account codes entered by users before or during calls to provide reports by account code. SMDR CAS collects call information from the SMDR output of the system Platform Requirements The following equipment is required to connect Standalone CAS software (CAS Plus V3 or CAS/H) to the system: An AT&T 286/386 PC, configured as follows: —...
  • Page 179: Call Accounting Terminal (Cat)

    Applications Call Accounting Terminal (CAT) CAUTION: This section is intended solely as an overview of the application, For comprehensive information about [he use of the application, see the documentation for the product. CAT, a standalone application, is a dedicated terminal and printer designed to track, sort, and print reports on telephone charges.
  • Page 180 Applications NOTE: The availability of the caller identification may be limited by local-serving (caller’s) jurisdiction, availability, or telephone company equipment. Considerations and Constraints Only one CAT can be connected to the system. CAT Basic can store information on up to 1200 calls for 100 extensions and 49 lines.
  • Page 181 Applications CAT Basic — — CAT Plus/Business — CAT Plus/Hospitality CAT Printer D8W modular cord and 355AF adapter connecting the SMDR port on the control unit to the CAT Call Accounting Terminal (CAT) 4-25...
  • Page 182: Call Management System (Cms)

    Applications Call Management System (CMS) CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. CMS is a standalone DOS-based application that simulates the actions of a system operator by answering calls and distributing them to individual agent extensions.
  • Page 183 Applications Ability to connect Music-on-Hold to callers waiting for available agents. Ability to connect up to four external alerts to indicate an exception, for example, an LED that lights when the oldest call has waited longer than 30 seconds. Exception thresholds are programmed. Real-time dynamic reconfiguration, allowing the user to modify the call flow on-line.
  • Page 184 Applications NOTE: If such equipment is used to rebroadcast music or other copyrighted materials, it may be necessary to obtain a copyright license from and pay license fees to a third party, such as ASCAP or BMI. A Magic On Hold system does not require such a license. Feature Interactions Extension Status A CMS supervisor uses the Extension Status feature to control and...
  • Page 185 Applications Assign the positions. — — Assign CMS lines and external alerts to the CMS supervisor’s console, and copy the assignments to the CMS PC ports. Set up a CMS fallback plan: — Designate the CMS supervisor console as a Group Coverage sender.
  • Page 186: Innmanager Guest Management System

    Applications InnManager Guest Management System CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. The InnManager Guest Management System is a standalone application that provides a complete management package for hotels with up to 100 extensions.
  • Page 187: System Programming And Maintenance (Spm)

    Applications System Programming and Maintenance (SPM) CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. SPM is a software application used for programming and maintenance of the system.
  • Page 188 Applications A UNIX* system-based version of SPM is available. See IS II and IS Ill. SPM reports can be printed out or can be written to the PC’s hard or floppy disk drive. At the same time, the report is displayed on the screen together with prompts for browsing.
  • Page 189: Integrated Solution Ii (Is Ii)

    Applications Integrated Solution II (IS II) CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. Integrated Solution II (IS II) is a complete package of UNIX System-based voice processing and call analysis software applications.
  • Page 190 Applications — Information Service, which provides a customer-oriented, call- in information service that plays a recorded message and then disconnects the caller. — Message Drop, which offers an answering service, similar to an answering machine, that plays a message to the caller and then allows the caller to “drop off”...
  • Page 191 Applications Table 4-6. Voice Channels Required No. of Channels Required Lines Busy-Hour Calls Subscribers 1 to 20 1 to 6 1 to 20 21 to 60 7 to 18 21 to 60 19 to 24 61 to 80 61 to 80 25 to 42 81 to 200 81 to 200...
  • Page 192 Applications Feature Interactions Account Code Entry The account code entered by users before or during calls are used by CAS-IS II to associate calls with accounts and individuals; they appear on CAS-IS II reports. Coverage An internal call on a VMI port that transfers to an internal extension will not go to coverage.
  • Page 193 Applications SMDR CAS-IS II uses the call information provided by the system’s built-in SMDR feature to process calls. There are two system formats for SMDR—basic and PRI. Transfer VMI ports can transfer an incoming call to an outgoing line/trunk. If a caller incorrectly specifies the answering VMI port as the desired transfer destination telephone, the VMI port can inadvertently park the call.
  • Page 194 Applications Specify the number of rings before a call transferred by the AVP is sent to the backup position (system operator). When the AVP Automated Attendant is used for Night Service only, do the following: If the lines/trunks set for answering the Automated Attendant appear at other stations, set the No Ring option for the other telephones.
  • Page 195 Applications IVP4 boards 012 basic telephone module to provide the tip/ring interface for IVP AA or Integrated Solution II (IS II) 4-39...
  • Page 196 Applications Integrated Solution III (IS III) CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. IS Ill is a complete package of UNIX System-based voice processing and call management software applications.
  • Page 197: Integrated Solution Ill (Is Ill)

    Applications — With Outcalling, when a user or subscriber receives a new message, the system can automatically call a number that he or she has programmed, for example, a beeper or a home telephone number. The subscriber can then log in to the VMS to retrieve messages.
  • Page 198: Integrated Administration

    Applications Integrated Administration Integrated Administration is the integration of AUDIX Voice Power and Fax Attendant administration with the switch parameters that are used by those two applications. Integrated Administration consists of three cooperating parts accessed by menu selection: Extension Directory Extension Directory Setup Integrated AUDIX Voice Power and Fax Attendant Administration (System Programming/Switch Administration)
  • Page 199 Applications Through the Integrated Solution Ill Maintenance menu, the technician performs an Extension Directory update, that is, steps through each extension and adds them as AVP subscribers if necessary. The technician then selects System Programming/ Switch Admin from the AVP or AVP/FA main menu and performs Integrated AVP or AVP/FA Administration.
  • Page 200 Applications Considerations and Constraints IS Ill can store up to 36 hours of voice-mail messages for AUDIX Voice Power with the 500-Mbyte fixed disk. IS III can store over 200,000 call records for CAS with the200-Mbyte fixed disk. Fax Attendant cannot be installed without AUDIX Voice Power. Automated Attendant cannot be installed as a standalone application, but only in conjunction with AUDIX Voice Power.
  • Page 201 Applications Feature Interactions Account Code Entry CAS uses the account codes users enter before or during calls to associate calls with accounts and individuals; these codes appear on CAS reports. Coverage An internal call on a VMI port that transfers to an internal extension will not go to coverage, but will continue to ring at the internal extension, If a sender programs his or her telephone so that only outside calls are sent to coverage, calls received on ICOM or System Access buttons will...
  • Page 202 Applications Night Service If the Automated Attendant handles only after-hours calls, a phantom station (an unused station jack) must be programmed as a member of a Night Service group associated with a system operator. In turn, this phantom station is covered by a calling group with integrated VMI ports as members.
  • Page 203 Applications The following system programming is required for AUDIX Voice Power with Automated Attendant: Set Inside (Intercom) Dial Tone to outside. Assign Automated Attendants to a calling group and specify the group type as VMI Integrated. Designate a backup position, such as the system operator, to receive calls that were originally transferred to unanswered or busy extensions or when a caller fails to respond to the announcement.
  • Page 204 Applications A Private Fax Extension is either an extension Private Fax Extensions. connected to an actual fax machine used by an individual or a phantom station associated with an individual’s voice extension. Programming for Private Fax Extension depends on whether or not the communications system’s configuration supports DID lines.
  • Page 205 Applications Platform Requirements IS Ill is delivered already installed and configured with the applications ordered. The system consists of an AT&T Master Controller II+ or Master Controller Ill running UNIX System V Release 3.2.2. Various hardware configurations are available; see the AT& T Integrated Solution Ill Installation and Maintenance Guide for details.
  • Page 206: Primary Rate Interface (Pri) Applications

    Applications Primary Rate Interface (PRI) Applications CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. Group IV (G4) Fax Group IV (G4) Fax is an application that enables the system to use the advanced Group IV (G4) Fax equipment-one of the new services accessible with the PRI trunks.
  • Page 207 Applications Video conferences can be started from an easy-to-use control console and can be as easy to use as a telephone. No special technical expertise is required to operate the system. The basic components include The conference control subsystem—to establish and terminate connections and allows camera control including pan, tilt, and zoom;...
  • Page 208: Centrex Operation

    Applications Centrex Operation CAUTION This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. Centrex is an optional telephone service for business customers. It provides an array of telephone features from the CO that formerly were available only from a PBX located on the customer’s premises.
  • Page 209 Applications In Release 2.0, a timed flash can be generated on a call terminating on a System Access button, as well as on a DFT button or a DPT button. This includes, among others, transferred calls, group calling calls, and forwarded calls.
  • Page 210 Applications Mode Differences The system must be configured for Behind Switch mode for full Centrex operation. For limited Centrex operation, if Centrex features are dominant, the system should be configured for Behind Switch mode; if system features are dominant, the system should be configured for Key or Hybrid/PBX mode. The system can be used as a Hybrid/PBX behind a host switch by combining the features of a Behind Switch system with the ground-start capabilities of a Hybrid/PBX system.
  • Page 211 Applications If a Key system is being converted to a Hybrid/PBX system for limited Centrex service, the conversion from loop-start lines to ground-start lines can cause a long delay before the system can be installed. Extension numbers should reflect the last four digits of the Centrex telephone line number.
  • Page 212: Merlin Pfc Telephone

    Applications MERLIN PFC Telephone CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. The MERLIN PFC (Phone-Fax-Copier) Telephone is a BIS-34D (34-button) display telephone with a built-in fax machine and personal copier that provides the convenience of a fax machine and personal copier in one compact unit.
  • Page 213 Applications Behind Switch Mode The dedicated fax line can be administered only to the MERLIN PFC Telephone fax extension, The dedicated fax line cannot be assigned to a pool. The dedicated fax line should be assigned as the secondary line on the MERLIN PFC Telephone.
  • Page 214: Automated Document Delivery System (Adds)

    Applications Automated Document Delivery System (ADDS) CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. The AT&T Automated Document Delivery System (ADDS) is a computer-based system that stores documents in a database and automatically faxes them on request 24 hours a day.
  • Page 215 Applications Platform Requirements To set up ADDS, a business must have the following: The Automated Document Delivery System software A touch-tone telephone A Group Ill (G3) Fax machine with an integrated handset To request and receive information, a caller must have a touch-tone telephone and a Group Ill (G3) Fax machine.
  • Page 216: Conversant Intro

    Applications CONVERSANT Intro CAUTION: This section is intended solely as an overview of the application. For comprehensive information about the use of the application, see the documentation for the product. CONVERSANT Intro is an entry-level voice response system that enables the user to run integrated voice response (IVR) applications.
  • Page 217 Applications Interaction of applications with voice mailboxes, with the ability to leave and retrieve messages, execute voice mail script, or get subscriber information Creation of tables and retrieve and update data using database tables Logging and displaying error messages Management reports and a system monitor for monitoring daily and ongoing system progress Considerations and Constraints CONVERSANT Intro supports a maximum of 24 channels of analog ports,...
  • Page 218: Applications Printers

    Applications Applications Printers The following table shows the printers that can be used with the communications system for applications connected to the system. Table 4-8. Applications Printers Document No. Description Printer 582-421-105 9-pin dot matrix Applications Printer printer that provides choice of print quality and speed.
  • Page 219: Data Communications Support

    Data Communications Support Using its circuit-switched connections, the communications system can establish a dedicated communications path between two data endpoints for the transfer of data. This connectivity enables the communication system to be used to share resources as well as to establish and manage connections between computers and other data input and output devices.
  • Page 220: Data Communications Configuration Overview

    Data Communications Support Data Communications Configuration Overview Figure 5-1 shows how data and voice equipment connects to the communications system to provide the support for data communications. The communications system’s control unit (hardware and software), in conjunction with other external hardware devices, provides data connectivity for the following: Internal analog data stations Connection to external analog data stations via analog facilities (GS, LS,...
  • Page 221: Figure 5-1. Individual Use Data Station Configurations

    Data Communications Support Figure 5-1. Individual Use Data Station Configurations Data Communications Configuration Overview 5-3...
  • Page 222 Data Communications Support Data Stations A data station consists of data terminal equipment (DTE), such as a personal computer (PC), data terminal, printer, optical scanner or video system, and data communications equipment (DCE), such as an internal or external modem or an external 7500B Data Module.
  • Page 223 Data Communications Support Analog Data Station Configurations Figure 5-1 shows, the T/R interfaces support the following analog data stations: Analog Voice and Analog Data (Station A): Includes a data terminal (with a keyboard and display) or a computer connected to a modem via an ElA-type RS-232 interface.
  • Page 224 Data Communications Support NOTE If the MLX telephone is voice-signaled while active on a call, both B- channels are required to accommodate the signaling. This may conflict with the data station. Other Supported Analog Data Endpoints Other data equipment that may be connected to an analog data endpoint (T/R interface) via a modem includes the following: A local host computer (described later in this chapter) Group Ill (G3) Fax terminal...
  • Page 225 Data Communications Support NOTE: To communicate with the switch, the digital data endpoint uses D-channel messages during call setup and termination. When the call is set up, the switch establishes a connection between the calling and called endpoints on a B-channel. The switch sends the appropriate messages to drive the endpoints into the data mode.
  • Page 226 Data Communications Support The maximum cord length from an MLX telephone to a the 7500B Data Module is 80 feet (24 meters). This should be considered if there are plans to use the voice capability of a port by connecting an MLX telephone located some distance away from the 75006 Data Module.
  • Page 227 Data Communications Support 5-1, Table Configurations of Data Stations Equipment Configuration 7500B Computer Data Analog Type of Type of Data Station Terminal Modem Module Telephone Telephone Module Analog voice and 008, 408, analog data 408 GS/LS Analog data only 012, 008 OPT †...
  • Page 228 Data Communications Support DHGs support the following: modem pools dedicated lines for data service (for example, DHG #4 in Figure 5-1) a host computer with multiple ports a workstation (gateway) on a LAN NOTE: One important aspect of a modem pool is the specific direction of call origination.
  • Page 229 Data Communications Support Data Call Direction An important aspect of modem pools is that call origination is in one direction only: Analog-to-digital, which enables an analog data endpoint to originate a call to a digital data endpoint Digital-to-analog, which enables a digital data endpoint to originate a call to an analog data endpoint Using a DHG extension to access a modem pool ensures that the intended incoming service unit (modem or 7500B Data Module) receives the data call...
  • Page 230 Data Communications Support Modem Pool Configurations Figure 5-1 shows three modem pool configurations: 1. Digital-to-analog modem pool, which enables a digital data endpoint to originate a call to an analog data endpoint. In this configuration, the 7500B Data Modules are assigned to a DHG. 2.
  • Page 231: Outside Trunks

    Data Communications Support Connectivity to a Local Host Computer Figure 5-1 shows DHGs assigned to modem-only and 7500B Data Module-only modem pools that provide access to a local host computer. These modem pools and the host computer are connected by EIA type RS-232 interfaces.
  • Page 232 Data Communications Support They do not protect against glare, a condition that occurs when an outside call is made at the same time that an incoming call arrives on the same trunk. They cannot provide reliable far-end disconnect for toll restriction. A ground-start (GS) trunk is preferred for communication with outside analog data stations.
  • Page 233 Data Communications Support A DS1 trunk connects to the jack on a 100D module in the control unit. Even though there is only one physical jack, the 100D module supports up to 24 logical endpoints or ports for voice and data calls. Each DS0 channel in the DS1 signal corresponds to a trunk or logical ID.
  • Page 234: System Features Used For Data

    Data Communications Support Dynamic B-channel assignment. An individual B-channel can be removed from service without blocking calls to or from any other B-channels. Improved toll restriction. PRI trunks severely limit the potential for bypassing of toll restrictions. Reliable indication of far-end disconnect. Blocking of incoming calls is prevented because a trunk is not immediately released;...
  • Page 235 Data Communications Support Idle Line Preference automatically selects the first available line for data calls. Last Number Dialed automatically places a call to the last number dialed from that station. Dialing sequence must include dial-out code for outside calls. Personal Speed Dial allows quick dialing (a 2-digit code) of frequently used numbers on 10-button phones.
  • Page 236: Endpoint Communications Features

    Data Communications Support Endpoint Communications Features The communications system supports the use of data equipment or data software. These features are provided by the data station hardware/software in the personal computer, data terminal, or communicating device, such as the 7500B Data Module or modem. Data transport mode selection (for example, 7500B Data Modules support DMI modes 0, 1, 2, and 3) Data metering (speed matching) of bit rates between digital data...
  • Page 237 Data Communications Support Ricoh fax models on the communications system. The communicating adjunct is the 7500B Data Module, (see Chapter 2 for a description of the 7500 Data Module). Group IV (G4) Fax machine are available from a number of manufacturers, each of whom uses proprietary interface connections.
  • Page 238: Figure 5-2. Direct Rs-232 Interface

    Data Communications Support Figure 5-2. Direct RS-232 Interface To use this method, it is important that the fax machine be ordered with an EIA- RS-232 connection, with V.28 or V.35 interface. In this method, there is a direct connection between the Group IV (G4) Fax machine and a 7500B Data Module.
  • Page 239 Data Communications Support The dialing path in this configuration requires a Multipurpose Enhancement Board that is installed in port 2 of the Data Module. The dialing path is then established by connecting the RS-366 jack on the Group IV (G4) Fax machine to the RS-366 jack in port 2 on the back panel of the 7500B Data Module.
  • Page 240 Data Communications Support Figure 5-3. RS-232 to V.35 Interface Conversion A V.35-to-RS-232 converter must be used between the fax machine and the 7500B Data Module. This configuration requires the use of the optional Multipurpose Enhancement Board in port 2 of the 7500B Data Module to set up an RS-366 dialing interface.
  • Page 241 Data Communications Support The 7500B Data Module is connected by a D8W cord to the MLX port on the 008 MLX or 408 GS/LS-MLX module (Release 2.0 only). The PRI interface is established from the 100 DS1 Module to the CSU and then to the ESS switch and the PRI interface.
  • Page 242: Figure 5-4. Direct V.35 Interface

    Data Communications Support Figure 5-4. Direct V.35 Interface This connection requires an optional High Speed Enhancement Board to be included in the 7500B Data Module. The High Speed Synchronous Enhancement Board provides a V.35 interface at synchronous data rates of 48, 56, or 64 Kbps on port 2. The connection is via an V.35 external adapter cable that converts the 25-pin male connector on Port 2 to the industry-standard 34-pin V.35 interface.
  • Page 243 Data Communications Support Video Conferencing Application This section shows an example of how to connect a 7500B Data Module with a multipurpose enhancement board for synchronous data communication, which allows data transmission at the speed of 56 or 64 kbps. High-Speed Synchronous Enhancement Board For instructions on using a high-speed synchronous enhancement board or any information on setting up the 7500B Data Module, not included in this section,...
  • Page 244: Figure 5-5. Video Conferencing Connections

    Data Communications Support Video Conferencing Connections Figure 5-5 shows an example of video conferencing connections. Figure 5-5. Video Conferencing Connections NOTE: If you are connecting MLX telephones, omit both 440A4 terminating resistors, and note that the maximum cord length from the data module to the telephone is 80 feet (24 meters).
  • Page 245: Product Ordering Information

    Product Ordering Information Ordering Codes Component Comcode App. Code Control Unit MERLIN LEGEND Control Unit 6140-CU2 106388614 403E Basic carrier and housing 105743801 391A 1 Power Supply module 106215155 517A27 Processor 106874738 517G25 Feature Module MERLIN LEGEND Control Unit w/408 ATL 6140-CA2 Basic carrier and housing 106388614...
  • Page 246 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code R1/R1.1 Upgrade to R2 6141-102A 106874738 517G25 Upgrade from Merlin II 6140-UD2A (Basic) Cover 106388234 106215155 Processor 517A27 105628010 517A21 008 MLX 517A25 Feature module 106064660 MLX-20L telephone (choose one): 106743420 7713D01 B-003 Black...
  • Page 247 Product Ordering Information Ordering Codes (continued) Component App. Code Comcode Telephones MLX Telephones MLX-10 English (black) 3156-02B 106743024 7712 D01B-003 English (white) 3156-02W 106743032 7712D01B-264 French (black) 3156-F2I 106633886 7712D01A(29)-003 French (white) 3156-F2I 106633894 7712D01A(29)-264 Spanish (black) 3156-S2I 106613508 7712D01A(22)-003 Spanish (white) 3156-S2I 106613516 7712D01A(22)-264...
  • Page 248 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Telephones (continued) Vintage Analog Multiline Telephones (black) 105217426 Z7302H01D0-003 3160-111 5-Button 105217509 Z7303H01D-003 10-Button 3161-172 3161-161 105371942 Z7309H01C-003 10-Button HFAI 3162-412 103842050 Z7305H01B-003 34-Button 34-Button Deluxe 3162-417 105217715 Z7305H02D-003 3162-BIS 103981965 Z7305H03D-003 34-Button BIS 3162-DIS...
  • Page 249 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Telephones (continued) Single-Line Telephones (continued) 554 BMPA 3 100-ORW (rotary, wall) 103823498 Black 554BMPA-3 Ivory 103823506 554BMPA-50 Beige 103823555 554BMPA-60 Cordless Telephones Model 5320 31CJ3-CLS 105543516 CS6300U11A-229 Consoles MERLIN II 61392 105229744 7318H01A-003...
  • Page 250 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Applications (continued) Call Accounting Terminal (CAT) CAT BASIC/B 3600-010 CAT Terminal 406669762 Printer 406637306 CAT Basic Rate Table* 36014 406669739 (Update Chip) 406478800 CAT/B 150S 3600-023 406478818 CAT/H 150S 3600-024 406478792 CAT/B Rate Table* (update) 36023...
  • Page 251 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Applications (continued) MERLIN LEGEND Integrated Solution Ill Controllers 100 MB MC-II + Processor 4200-503 4 x 100 MB MC-II + Processor 406506329 4MB Memory Upgrade 106219553 406504571 COLOR MONITOR 406504563 KEYBOARD 9 to 25 PIN ADAPTER 406139394...
  • Page 252 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Applications (continued) MERLIN LEGEND R2 AVP. 2.1.1 106876311 IVPSS 2.0 AVP2.1.1 AVP/FA MLR2 Switch Integ. SW MERLIN LEGEND Integ. AVP/FA Admin. MERLIN LEGEND AVP User’s Guide (50) MERLIN LEGEND AVP System Manager’s Guide MERLIN LEGEND AVP/FA Planning Guide MERLIN LEGEND FAX Attendant...
  • Page 253 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Applications (continued) 500 MB MC-III + 8 x 36 AVP 6146-036 500 MB MC-Ill + Processor 4200-936 8306-100 106248651 IVP4 Board (qty.2) 106529548 UNIX 3.2.2 CART. TAPE UTILITIES 106632938 106894942 MERLIN LEGEND IS-III 106876311 LEGEND R2 AVP 2.1.1...
  • Page 254 Product Ordering Information Ordering Codes (continued) Comcode App. Code Component Applications (continued) 6146-212 200 MB MC-III + 8 x 12 AVP, 4 x 1000 FAX 4200-912 200 MB MC-III + Processor IVP4 Board (qty.2) 8306-100 106248651 106529548 UNIX 3.2.2 106632938 CART.
  • Page 255 Product Ordering Information Ordering Codes (continued) Comcode App. Code Component Applications (continued) MERLIN MAIL™ Voice Messaging System for the MERLIN LEGEND Communications System 6107-005 Two-port 406824532 MERLIN MAIL unit 406466193 Remote maintenance device Four-port 6107-006 406824540 MERLIN MAIL unit 406466193 Remote maintenance device Two-port line card (R2) 6107-007 406824524...
  • Page 256 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code System Adjuncts and Adapters (continued) Electrostatic discharge (ESD) suppression kits 105179329 D181574 D-181574 105201891 D-181589 D181589 105201909 D181590 D-181590 105201917 D181591 D-181591 D-181593 105201933 D181593 103965206 Z200A EMI filter 406721738 32918 343B In-Range Out-of-Building-343B...
  • Page 257 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code System Adjuncts and Adapters (continued) AT&T Door Phone Speaker 53240 406269860 PagePac 20 Talkmate 53501 403307994 PE53501 AT PagePac 50 5322-051 403305444 5322-051 VC PG PagePac 200 5322-201 403305469 5322-201 VC PG PagePac VS 5322-700 403307192...
  • Page 258 Product Ordering Information Ordering Codes (continued) Component Comcode App. Cods System Adjuncts and Adapters (continued) Supplemental Alerts Alert Bell 5580-002 406293720 TB591-1 Network Interface Alert Bell 61211 102872934 RINGER-E1CM-49 Alert Horn 406207217 THET4-1 5580-021 Alert Strobe 5580-041 403319197 AT-WHL LK Alert Chime 5580-030 405136060 CHBT2-1 Telephone Adjuncts and Adapters...
  • Page 259 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Telephone Adjuncts and Adapters (continued) Single-line telephones (continued) 31 52-007A 103786786 D8W-87 7FT S201 Speakerphone Black 106192651 MOD-S201AP-003 Misty cream 106192693 MOD-S201AP-215 3131-004A 103786786 D8W-87 7FT CS201 Conference Speakerphone Black 106270325 MOD3-CS201A-003 Misty cream 106270333 MOD-CS201A-215...
  • Page 260 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code MLX Telephones Miscellaneous (continued) Handsets and Cords (continued) Handset cord, 9’ (2.74 m), black 105635429 H4DU-003 9FT Handset cord, 9’ (2.74 m), white 105701809 H4DU-2649’BULK Handset cord, 12’ (3.66 m), black N/A 102401445 H4DU-3 12FT IP Handset cord, 12’...
  • Page 261 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Analog Multiline Telephones Miscellaneous Add-Ons and Replacement Parts (continued) Desk Stands and Wall Mounts (continued) Fixed desk stand, 103746848 32004 5- & 10-button Desk stand/wall mount 103804290 14A-003 14A, BIS-10 Desk stand/wall mount 103964458 Z14B-003...
  • Page 262 Product Ordering Information Ordering Codes (continued) Component Comcode App. Code Miscellaneous Parts Interconnect Wiring Kit 110AB1-100JP12 104409396 110A1 trough 104407960 D-Rings 842139248 D8W cords 103786802 Parts list SYSTIMAX 3103-MER 106393671 MERLIN Wiring Kit 110A1 trough (5) 104407960 110AB1-100JP12 104409960 modular block (2) 110AB1-100FT 103823845 punch down block (1)
  • Page 263 Glossary A data communications device that allows connection 7500B Data Module between RS-232 data terminal equipment (DTE) and the communications system control unit via MLX station jacks on the 008 MLX or 408 GS/LS-MLX module. The 7500B Data Module is used together with a modem in a modern pool to change digital signals to analog signals, and vice versa, which allows transmission between digital and analog data stations.
  • Page 264 Glossary A mode of transmission in which information is represented analog in continuously variable physical quantities such as transmission amplitude, frequency, phase, or resistance. See a/so digital transmission. (Automatic Number Identification) The process of automatically identifying a caller’s billing number and transmitting that number from the caller’s local central office to another point on or off the public network.
  • Page 265 Glossary B8ZS (Bipolar 8 zero substitution) A line-coding format that encodes a string of 8 zeros in a unique binary sequence using bipolar violation. See also bipolar signal and bipolar violation. B-channel A 64-kbps channel that carries a variety of digital information streams, such as voice at 64 kbps, data at up to 64 kbps, wideband voice encoded at 64 kbps, and voice at less than 64 kbps, alone or combined with other digital...
  • Page 266 Glossary blocking A condition in which end-to-end connections cannot be made on calls because of a full load cm all possible services and facilities. Broadcast Music Incorporated (Basic Rate Interface) A standard ISDN frame format that specifies the protocol used between the communications system and a terminal.
  • Page 267 Glossary channel A telecommunications transmission path for voice and/or data. Channel See CSU. Service Unit A data call made via a connection exclusively established circuit-switched and maintained between data stations for the duration of data call the data call. The operation of digital facilities from a common clock. clock synchronization (Call Management System) A DOS-based application that...
  • Page 268 Glossary See CRC. cyclic redundancy check D4 framing A framing format consisting of a sequence of individual format frames of 24 eight-bit slots and one signal bit ( 193 bits) in a 12-frame superframe. See also ESF. The 16-kbps or 64-kbps channel carrying signaling or data D-channel on a Basic Rate Interface (BRI) or 64–kbps channel carrying signaling or data on a Primary Rate Interface (PRI).
  • Page 269 Glossary dial access See feature code. Dialed Number See DNIS. Identification Service dial-out code A code (usually a 9) dialed by single-line telephone users and multiline telephone users with System Access buttons to get an outside line. (Direct Inward Dialing) A service that transmits the called extension to the communications system from the central office and routes incoming calls directly to the called extension, calling group, or outgoing trunk pool, bypassing...
  • Page 270 Glossary sent to a common QCC queue and wait until a QCC is available to receive a call). (Dialed Number Identification Service) A service provided DNIS by ASN that routes incoming 800 or 900 calls according to customer-selected parameters, such as area code, state, or time of call.
  • Page 271 Glossary (Extended superframe format) A framing format consisting of individual frames of 24 eight-bit slots and 1 signal bit (193 bits) in a 24-frame extended superframe. See also D4 framing format. A carrier added to the control unit when the basic carrier expansion cannot house all the modules needed.
  • Page 272 G l o s s a r y ground-start See GS trunk. trunk Group IV (G4) A fax unit offering 400x 100 dots per inch (DPI) in fine mode, which can operate at any speed for communication Fax machine with a Group Ill (G3) Fax machine or another Group IV (G4) Fax machine, (Ground-start trunk) A trunk on which the communications GS trunk...
  • Page 273 Glossary (in-Range Out-of-Building protector) A surge protection IROB device for off-premises telephones at a location within 1000 feet (305 meters) of cable distance from the communications system control unit. IS II/III (Integrated Solution II/III) A UNIX-based platform of applications for improving voice and data communications and automating office operations.
  • Page 274 Glossary loop-start See LS line/trunk. line/trunk A line/trunk on which a closure between the tip and ring LS line/trunk leads is used to originate or answer a call. High-voltage 20- Hz AC ringing from the central office (CO) signals an incoming call.
  • Page 275 Glossary modem pool A pair, or group of pairs, of modems and data modules with interconnected RS-232 interfaces that converts digital signals to analog, or analog signals to digital, thereby allowing users with digital data stations to communicate with users who have analog stations. module A module in the control unit provides the capability to connect central office trunks and/or telephones to the...
  • Page 276 Glossary Private branch exchange Personal computer Pulse code modulation. A central office line that rings only at the user’s telephone. personal line On a Hybrid/PBX system, a grouping of outside trunks that pool users can choose with multiple pool buttons or by dialing access codes on a System Access button on the telephone.
  • Page 277 Glossary where they wait until a QCC is available to receive a call (unlike the DLC where calls can ring on any of the line buttons, and several calls can ring simultaneously). Queued Call See QCC. Console (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 the memory.
  • Page 278 Glossary (System Programming and Maintenance) A DOS-or UNIX-based application for programming and maintaining the communications system. Square Key A way of configuring the communications system in Key mode so that all lines appear on all telephones. (Switched service network) A network consisting of terminals, transmission lines, and at least one exchange on which a user can communicate with any other user at any time.
  • Page 279 Glossary (Time-division multiplexing) A process by which the transmission channel is divided. Equipment that provides power to an individual telephone. telephone power supply unit tie trunk A private line directly connecting two communications systems. Time-division See TDM. multiplexing timer A built-in timing device in a display telephone. The contacts and associated conductors of a single-fine tip/ring telephone plug or jack.
  • Page 280 Glossary wink-start tie A tie trunk on which the originating end transmits an off- trunk hook signal and waits for the remote end to send back a signal (a wink) that it is ready for transmission. (zero code suppression) A binary coding scheme that ensures a data stream contains at least a minimum number of information bits (1s) for receiver synchronization.
  • Page 281 Index 6386/SX WGS 4-59 705 Multi-tasking terminal 4-59 7101A single-line telephone 1-3 7102A single-line telephone 1-3 008 module, on QCC 2-26, 5-13 7500B Data Module 1-4, 2-37 - 2-41, 008 MLX module 5-8, 5-12 - 5-13, 5-2, 5-4, 5-6 - 5-9, 5-1 2 - 5-1 3, 5-20 - 5-21 5-19, 5-25 008 OPT module 5-4, 5-12...
  • Page 282 Index Adapters and adjuncts 2-28 - 2-30 Call Accounting System Add digits for Direct Inward Dialing (CAS) 4-20 - 4-22 (DID) trunks 3-13 Call Accounting Terminal Address, I/O 1-31 (CAT) 4-23 - 4-25 ADDS (see Automated Document Call Management System Delivery System) (CMS) 4-26 - 4-29 Adjuncts 1-4, 2-28 - 2-30, 2-43...
  • Page 283 Index Automated Document Delivery Built-in modem 1-11, 1-30 System (ADDS) 4-58 - 4-59 Automatic Callback 5-17 Input/output in control unit 1-11, Automatic Number Identification (ANI) with Call Accounting Terminal Time-division multiplexing in control 4-23, 5-15 unit 1-11 Automatic Route Selection (ARS) Busy-hour calls 4-15, 4-19, 4-35 1-14, 4-53 5-16 Busy-out, Power failure for DID...
  • Page 284 Index CAT Plus/Hospitality 4-23 Contamination, Airborne requirements for control unit 1-39 Centralized Telephone Programming 1-31 Control unit 1-2, 1-7, 2-1 Backboard dimensions 1-37 Centrex 1-22, 1-27, 4-52 - 4-55 Backboard-mounting hardware Channel Service Unit (CSU) 2-31 - 2-33, 3-1 9 - 3-20 1-38 Backplane assembly 1-9, 2-2 Class of service 4-34...
  • Page 285 Index Delay announcement 2-46 Delay signaling type for tie trunks D4 Framing Format 3-18 - 3-19 Delete digits for Direct Inward Dialing Data communications 5-1 (DID) trunks 3-13 Configuration 5-2 - 5-13 Destination button, on QCC 2-25 Connectivity to LAN 5-13 DFT (see Direct Facility Termination) DHG (see Data hunt group) Connectivity to local host...
  • Page 286 Index Environmental requirements for on QCC 2-26 control unit 1 -37 - 1-39 Page button 2-20 with digital DLC 2-27 ESF, T1 CSU 2-31, 3-19, 5-25 with MLX-20L telephone 2-27 Expansion carrier 1-2, 2-1 - 2-2 2-27 Dimensions 1-37 with MLX-28D telephone Expected digits for Direct Inward Direction for tie trunks 3-4 Direct-Line Console (DLC)
  • Page 287 Index Humidity requirements for control unit 1-38 Hybrid Key system 1-17 Hybrid/PBX mode 1-18 - 1-22 General Purpose Adapter (GPA) 1-4, FCC registration 1-28 - 1-29 1-7, 2-35 - 2-37, 4-58, 5-4 Generic VMI port 4-6 QCC 1-21 Trunk access 1-20 Glare 3-1 - 3-2, 4-54, 5-14 GPA (see General Purpose Trunk pools 1-18, 1-20...
  • Page 288 Index IVP 4 boards 4-39, 4-61 Location of control unit 1-39 Loop-start lines/trunks 1-14, 1-18, IVP 4/6 boards 4-47 1-24, 2-5, 3-1 - 3-2, 5-13 - 5-14 Modules used 5-14 Loop-start pool 1-20 Loop-Start Trunk Adapter 2-33 Loudspeaker Paging system 1-8, 2-44 - 2-45 Join button, on QCC 2-25 Magic On Hold 1-7...
  • Page 289 Index MLX-28D telephone 1-2, 1-8, 2-15, 2-27 Mode, Dial for tie trunks 3-4 Mode codes, Voice messaging Networking, Tie trunk 3-10 Night Service systems 4-6 Modem, Built-in 1-11 button on QCC 2-25 Modem pool 5-10 feature 4-13, 4-14, Configurations 5-12 4-17, 4-36, 4-46 Data call direction 5-11 No Transfer with Automated...
  • Page 290 Index PFT jack 2-60 Power failure alarm 2-58 PFT telephone 2-22, 2-60 Power failure DID busy-out 2-58 Power failure transfer jack 2-60 Pool access 5-17 Pool button 1-21 Power failure transfer (PFT) Pool Status button, on QCC 2-25 telephone 2-60 Pools Power outlet, AC 1-9 Power requirements for control...
  • Page 291 Index Signaling RAM backup 2-3 Recall button 4-53 DID trunks 3-13 DS1 3-21 Release 1.0 operation 1-14, 1-20, 3-18, 4-52 Tie trunks 3-7 - 3-9 Release 1.1 enhancements 1-43 - Type 1 Compatible 3-8 Type 1 Standard 3-8 1-44, 4-52 Release 2.0 enhancements 1-44 - Type 5 3-8 1-46, 3-18, 4-12, 4-53...
  • Page 292 Index Surge protectors 1-41 - 1-42, Types of telephones used 2-24 2-56 - 2-57 System numbering 4-28 146A 2-56 System programming 1-30 147A 2-56 DS1 facilities 3-16 PC requirements 1-30 - 1-31 Switched Network, AT&T (ASN) with built-in modem 1-30 services 3-16 Switches and tie-trunk signaling 3-7 with MLX-20L telephone 1-30...
  • Page 293 Index MERLIN PFC Telephone 1-3, 2-21 Transfer redirect, VMI ports 4-7 MLC-5 Cordless analog Trouble alarm 2-58 multiline 1-3, 1-8, 2-21 Trunk access MLX 1-2 Behind Switch mode 1-26 MLX-10 1-2, 1-8, 2-18 Hybrid/PBX mode 1-20 MLX-10D 1-2, 1-8, 2-17 Key mode 1-15 MLX-20, Jack connection on Trunk pools 1-14 - 1-20...
  • Page 294 Index TTRs required 4-6 - 4-7 Voice messaging interface 4-6 - 4-8 Ventilation requirements for control unit 1-37 - 1-39 Video codec 4-51 Video Conferencing 4-50, 5-25 - 5-26 WATS 1-14, 1-18, 1-24 VMI (see Voice Messaging Wink signaling type for tie trunks 3-5 Interface) Voice announce 5-17 Wink-start type for Direct Inward...

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