AT&T 518-600-016 User Manual

AT&T

518-600-016

MERLIN II

COMMUNICATIONS SYSTEM

Installation, Administration,

and Maintenance Manual

January, 1990

Issue 2

NOTICE

The information in this document is subject to change without notice. AT&T assumes no responsibility for any-errors that may appear in this document.

MERLIN is a registered trademark of AT&T. HOLADAY is a trademark of Holaday Industries.

Section 1: System Description

What’s in This Manual

Section 1: System Description

Section 2: Installation Section 3: Administration Section 4: Troubleshooting Section 5: Ordering Information

System Overview

System Configuration System Features

System Hardware

MERLIN II System Components

Control Unit Components Module Controls and Indicators Voice Terminals Basic Operation of Voice Terminals System Accessories

1-1

1-1 1-1 1-1

1-1

1-2 1-4

1-7

1-18

1-18 1-18 1-23 1-25 1-29 1-31

Theory of Operation

System Architecture Analog to Digital Signal Processing Digital Switching System Capacity

E&M Signaling

System Connectivity

Simultaneous Voice Data Local Host Computer Access Modem Pools General Requirements for Modems Music-On-Hold

External Loudspeaker Paging

1-36 1-36

1-40

1-42 1-44 1-45

1-52 1-52

1-54 1-54 1-58 1-60 1-60

What's in This Manual

This manual provides information about how to install and maintain a MERLIN II Communications System. It covers the MERLIN II System Feature Module 1, Feature Module 2, and Release 3. For further information on specific

features and options, see the

System System Manual

on data communications options with the MERLIN II system, refer to the

Data Communications Guide

The information in this manual is divided into five sections, as described below.

MERLIN

Communications

for that release. For information

mmunications System

for the release.

SECTION 1: SYSTEM DESCRIPTION

SECTION 2: INSTALLATION

SECTION 3: ADMINISTRATION

SECTION 4: TROUBLESHOOTING

SECTION 5: ORDERING INFORMATION

This section provides a general overview of the system and its components.

This section describes how to wire and install a MERLIN II system.

This section tells you how to customize and administer the system to meet specific business needs.

This section can help you isolate and solve technical

problems that may cause the system to malfunction.

This section tells you how to order MERLIN II system

components and accessories.

What’s in This Manual

1-1

System Overview

The MERLIN® II Communications System is a programmable digital telephone system with many features to make voice and data easy to manage. It

supports up to 56 outside lines and 120 stations, depending on the configuration. Voice terminals allow access to the system for conversations, feature programming, or system administering. By connecting an optional printer to the system, the user can receive a detailed call report of each

station’s activity and a printout of all system administration.

The MERLIN II System is designed to handle integrated voice and data calls without reducing system capacity. It can support various terminal types: analog voice terminals, digital voice terminals, and digital data terminals. It also supports the new 7102A single-he voice terminal, Touch-Tone (2500) telephones, and rotary (500) telephones.

Data and voice options are implemented by selecting the appropriate station module. There are three types of

station modules: analog modules for analog voice terminals, basic telephone modules for 7102A, 2500, or 500 sets, and digitaI modules for digital voice terminals and data devices. Station modules, used with system accessories, allow the user to select from the simplest

method of voice and data communication to complex arrangements such as data calls between two digital stations and modem pooling. Refer to Figure 1-1 for an example of MERLIN II system configuration.

1-2 System Overview

MERLIN II System control unit

Modern pool types

Digital Digital Digital

port port port

MTDM

Modern Modern

2500 Port

MTDM

BTMI

Analog

port

MTDM

Modern

Central

office

line

Analog voice and data

Voice Terminal

General

Purpose Adapter

Power

supply

Local host access

Digital Digital

port port

MPDM MPDM

Host

Computer

Display

Console

34-Button

22-Button

10-Button

Modem

Processor module

Terminal

or PC

Analog station module

Accessories/auxlliary

equipment

Telephone

and Modem

Interface 2

Music

Coupler

Single/Multizone

Paging Alerter

Accessories

MERLIN II

Attendant

Basic

telephone

module

Basic

Tie

line

module

Digital voice and data

PT510D Digital

Voice/Data

7406D

Digital

Voice

Basic voice and data

Modem

Digital station

module

7406D/with display Digital Voice

7406D/with

Data Stand

Digital

Voice/Data

2500 Type

telephone

500 Type

telephone

Terminal

or PC

FIGURE 1-1 MERLIN II system configuration.

Answering

machine

Printer

System Overview 1-3

SYSTEM CONFIGURATION

The size, type, and features of a MERLIN II system are determined using system planning forms.

System Size

A MERLIN II system can be as small as four outside lines and eight analog voice terminals, or as large as 56 outside

lines and

stations. A MERLIN II system with as many

as eight lines and 20 stations is considered a small system

for administration purposes. Basic and expanded system capabilities are determined by

these system hardware maximum limitations:

●

Thirty-six analog stations with the Simultaneous Voice

and Data feature

●

Sixty-four digital stations with the Simultaneous Voice

and Data feature

● Eleven line pools

●

Seventy-one off-premises devices or Basic Telephone

and Modem Interfaces

System Type

A system can be configured for pooled, square, or behindswitch operation. The MERLIN II system default configuration is pooled with button access.

●

In a square system, each outside line has a dedicated

position on a voice terminal. This arrangement is also known as a key system. In a standard square configuration, outside lines appear on the same buttons on each voice terminal. In a customized square system, different groups of outside lines are assigned

to the same buttons on selected groups of voice terminals.

1-4 System Overview

●

In a pooled system, outside lines can be grouped into

line pools (groups of interchangeable lines). To get an outside line in a pooled system, the user must dial an access number or use a dedicated pool button on the

voice terminal. Access to outside line pools can also be had through Automatic Route Selection (ARS).

●

In a behind-switch system, the MERLIN II system

operates behind a larger system such as a System 25, 75, or 85 PBX. In this configuration, most features of both systems are available to the MERLIN II system user. Refer to Figure 1-2 for an example of a MERLIN II system operating behind a digital PBX.

System Overview 1-5

Central

office

lines

25 Pair cable

Network

interface

66 Type hardware

DIW cable

Digital PBX

(System 25,

System 75,

or System 85)

Jack Field

for outside

lines

Z122C Box

with

Z61OA

Adapters

D2R

cords

Power Supply

408 408 408 408 408

PFT

04 03 02 01

08 07 06 05 04 03 02 01

PFT 08 07 06 05

PFT 12 11 10 09

24 23 22 21 20 19 18 17

PFT 16 15 14 13

26 25

PFT 20

18 17

39 38 37 36 35 34 33

D8W cords

To voice

terminals

and

adjunct

equipment

MERLIN II System

contol unit

FIGURE 1-2 A MERLIN II system behind-switch operation.

1-6 System Overview

SYSTEM FEATURES

Table 1-1 lists the features that are available for MERLIN II System Feature Modules 1 and 2, and Release 3.

NOTE:

The features in Table 1-1 are described fully in

MERLIN II Communications System System

the

Manual.

The following paragraphs describe feature that are either

new in Release 3 or have been significantly modified for Release 3.

●

Disallowed List.

Using a Disallowed List, you can create up to eight lists of numbers, area codes, or exchanges that selected users will not be permitted to dial. Each list can have up to 10 numbers. The administrator may assign one or more of these lists to any station in the system. If a station is assigned so a disallowed list any attempt to dial a number contained in the list wiIl be denied.

●

Extended Station Status.

Extended Station Status (ES Status) indicates the operating status of other stations to the administrator. When ES Status is administered for Hotel/Motel mode, the attendant can put voice terminals into different categories to indicate whether the room is occupied. With Release 3, if the voice terminal is off-hook, the attendant can’t change its status. This ES Status Inhibit feature helps prevent hotel guests from making calls from their room after

they have checked out.

NOTE:

The alternative to Hotel/Motel mode is Call

Management System (CMS) mode. CMS is the automatic call distributor (ACD) for the MERLIN II system, and is available only with Feature Module 1 or 2,

not

Release 3. The CMS component of the MERLIN II system answers calls and connects them to available

agents. CMS is not a system feature and requires a separate software package.

System Overview 1-7

●

MERLIN II Attendant. The MERLIN II Attendant automatically answers and routes incoming calls. The feature is available only when the optional MERLIN II Attendant accessory is installed. Also, to gain access to this feature, you

must

use the517C13 Basic

Telephone (012) Module. The MERLIN II Attendant performs two major

functions (Figure 1-3):

Immediate call handling, in which all incoming

calls are received and routed by the MERLIN II Attendant. Multiple MERLIN II Attendants can be used to handle call groups.

Backup call handling, in which incoming calls are

directed to the MERLIN II Attendant if the receptionist (Station 10) does not answer within a predetermined number of rings.

Each of these functions includes night service call handling in which the MERLIN II Attendant maybe

used for call coverage only after normal business hours.

●

On-Line Module Swap.

The On-Line Module Swap

feature allows you to replace a module in the control

unit without powering the system down. The replacement module must be the same as the one

removed (i.e., a 408 module must be replaced with a 408 module). To use this feature, it is necessary to follow the exact procedures described in “On-Module Swap,w on page 4-7.

●

Page All.

This feature allows you to page all

telephones in the system at once over voice terminal speakers.

1-8 System Overview

●

Posted Message.

The Posted Message feature provides a method of sending one of 20 user-defined messages to another terminal. Each message can be up

to 16 characters long and will appear on the caller’s display.

●

System Speed Dial.

System Speed Dial allows the caller to store frequently used numbers as three-digit codes. For Release 3, the feature has been enhanced to accommodate 130 speed dial numbers.

●

Tie Lines.

The MERLIN II system interfaces to a tie line with E&M signaling through a Tie Line Module. This feature permits the interconnection of a MERLIN II system to another MERLIN II system or to other switches such as a System 25,75, or 85 PBX. (See “E&M Signaling” on page 1-45 for a description of E&M signaling.)

System Overview 1-9

Call transferred to

receptionist;

MERLIN II Attendant

disconnects

▲

MERLIN II Attendant

answers call.

Caller enters route or extension

number.

Route

or extension

valid?

Yes

Route

or extension

answers?

Second

route or extension answers?

MERLIN II Attendant plays Transfer Fail

announcement.

Yes

call transferred; connection

announcement played;

MERLIN II Attendant

disconnects.

Does

caller select another route or extension?

Yes

FIGURE 1-3 MERLIN II Attendant operation.

1-10 System Overview

Repeat process

TABLE 1-1 MERLIN II System Features

Feature

Account Code Entry Allowed List Attendant (Automatic) [MERLIN II Attendant] Attendant Barge-in Attendant Position Setting Auto Answer All Auto Answer-Intercom Auto Intercom Automatic Line Selection (ALS) Automatic Route Selection (ARS)

FM1 FM2

x x

x x x x x

x x

Release 3

x x

x x x

x x

Basic Telephones

x x

Behind-Switch Operation

Bridging on Shared Lines Call Coverage

1 The feature name is "Account Number Entry- for Feautre Module 1. 2 The feature name is ‘Executive Barge-In 3 The feature name is “Bridging” for Feature Module 1 and Feature Module 2

for Release 3 and can be used from any voice terminal.

x x

System Overview 1-11

TABLE 1-1 MERLIN

System Features (continued)

Feature

Call Forwarding and Follow Me Call Park Call Pickup Call Pickup Groups Call Report (SMDR) Call Restriction Camp On Centralized Programming Conference Coverage Inhibit

FM1

FM2

Release 3

x x

x x x

x x

x x x

x x

x Dialing Timeout Internal for Rotary Lines Direct Inward System Access (DISA)

x Disallowed List Display Do Not Disturb Drop

4 This feature in Feature Module 2 and Release 3 is the same as "Line Pickup” in Feature Module 1.

x x x x x

x x x x x x

1-12 System Overview

TABLE 1-1 MERLIN II System Features (continued)

Feature

Executive Barge-In Extended Station Status (ES Status) Flexible Numbering

Follow Me Forced Account Code Entry (FACE) Group Call Distribution (GCD)

Group Listening Group Page

Hold Hold Disconnect Interval

FM1

FM2 Release 3

x x

x x x

x x

x x x

x Intercom Intercom Dial Tone Labels for Lines and Stations Last Number Redial

5 For Feature Module 2, the feature name is “Attendant Barge-In” and it operates only from an attendant

station. 6 For Release 3, the feature name is “Call Forwarding and Follow Me” 7 The information for this feature is found in Section 2, "System Components," of the System Manual for

Release 3.

8 For Feature Module 2, the feature name is "labels for Stations” and it is limited to stations only.

x x

x x x

x x

System Overview 1-13

TABLE 1-1 MERLIN II System Features (continued)

Feature

Leave Word Calling Line Assignments in Behind-Switch Systems Line Assignments in Pooled Systems Line Assignments in Square Systems

Line Pickup Line Representation Setting Line Request

Loudspeaker Page Manual Signaling

Menu Driven Administration

FM1

FM2 Release 3

x x

x x x x

x x x

Message Monitor-on-Hold

9 The feature name is "Line Pools" for Feature Module 1. 10 The feature name is "Square Line Configuration" for Feature Module 1. 11 This feature is called "Call Pickup" for Feature Module 2 and Release 3. 12 The feature name is “System Type” for Feature Module 2 and Release 3. 13 This is not technically a feature of MERLIN II System with Release 3, since menu-driven is the only

administration method for that release. See “Overview” in Section 3, "Reference," of the Release 3 System Manual for information on menu-driven administration.

14 The information for this feature is found in Section 2, "System Components," of the System Manual for

Release 3.

x x x

1-14 System Overview

TABLE 1-1 MERLIN II System Features (continued)

Feature

Music-on-Hold Night Service

Notify On-Hook Dialing On-Line Module Swap

One-Touch Hold with Call Announcement

Outside Auto Dial Page All PBX, Centrex, or Custom Calling Features Personal Speed Dial

FM1

FM2 Release 3

x x x

x x

x x x

x x

Personalized Ringing Posted Message Privacy Reed Recall Timer Interval

Reminder Service

15 The information for this feature is found in Section 2, "System Components," of the System Manual for

Release 3.

x x x x x

x x

x x x

System Overview 1-15

TABLE 1-1 MERLIN II System Features (continued)

Feature

Ringing/Idle Line Preference Ringing-on-Transfer Ringing Options

Saved Number Redial Send Message Simultaneous Voice and Data Calls Special Characters in Programmed Dialing Sequences Stopwatch System Renumbering

System Size

FM1

x x

x x x x

FM2

Release 3

x x x

x x x x x x x x x

x x x x

System Speed Dial System Type

Test

16 The feature name is “Ringing Line Preference” for Feature Module 1. 17 The feature name is “System Size Setting- for Feature Module 1. 18 This feature name is "Line Represention Setting" for Feature Module 1. 19 The information for this feature is found in Section 2, "System Components," of the System Manual for

Release 3.

x x

1-16 System Overview

TABLE 1-1 MERLIN II System Features (continued)

Feature

Tie Lines

Tones Touch-Tone Enable Touch-Tone or Rotary Signaling Transfer

Transfer Return Interval Type of Telephone

Voice Announcement Enable/Disable

Voice Announcement to Busy Telephone

FM1

x x x

FM2

x x

Release 3

20 The information for this feature is found in Section 2, “System Components,” of the System Manual for

Release 3. 21 The feature name is "Touch-Tone or Rotary Setting" for 22 The feature name is "Voice Terminal Type Setting" for Feature Module 1, and "Voice Terminal Type" for

Feature Module 2. 23 The feature name is "Voice Announcement to Busy Voice Terminal" for feature Module 1 and Feature

Module 2.

Feature

Module 1.

System Overview 1-17

System Hardware

MERLIN II SYSTEM

COMPONENTS

CONTROL UNIT COMPONENTS

The MERLIN II system includes the following hardware:

●

Control unit Voice terminals

●

> Analog > Digital

●

Basic Touch-Tone

●

Digital data equipment

●

Modems

●

System accessories/auxiliary devices

The assembly of modules containing a power source, a processor, and jack connections for outside lines, tie lines, MERLIN II system telephones, and other devices mounted on a carrier is called the control unit (Figure 1-4). The individual components are as follows:

●

Basic carrier.

The basic carrier is the main housing for the control unit. Every MERLIN II system must have at least one basic carrier, which houses the Power Supply Module, Processor Module, and up to five line and/or station modules.

● Expansion carrier. The expansion carrier provides

slots for an additional Power Supply Module and six line and/or station modules. The expansion carrier does not require a Processor Module.

1-18 System Hardware

Basic carrier

FIGURE 1-4 Control unit components.

●

Power Supply Module. The Power Supply Module

receives an input of 117 VAC and supplies the system with the following dc voltages: +5, -5, and -48 VDC. The Power Supply Module can support up to 45 unit

loads per carrier. (A unit load is a measure of power used to determine the electrical load of the MERLIN II system.) if the system’s power requirements exceed 45 unit loads, an Auxiliary Power Unit must be used. This device supplies an additional 20 unit loads to the system. For more information on unit loads and the Auxiliary Power Unit refer to “Determining Unit Load Requirements” on page 2-57.

If the system uses Basic Telephone (012) Modules, a Frequency (Ring) Generator must be installed in the Power Supply Module.

Expansion

carrier

System Hardware 1-19

Power supply

module

Processor

module (R3)

(with feature

module)

Processor

module

(FM1 and 2)

(with feature

module)

Line/station

module

(408)

Station

module

(000)

Line module

with DTMF

(400)

Line

module

(800)

Tie line module (400EM)

FIGURE 1-4 Control unit components (continued).

1-20 System Hardware

Digital

station-module

(008D)

Basic

telephone

module

(012)

●

Processor Module.

The Processor Module contains the circuitry that controls the system’s programs and features. It houses the Feature Module. Release 3 of the MERLIN II System must use Processor Module

517B7 with Feature Module 517F6.

● Feature Module. The Feature Module contains the

Read Only Memory (ROM) and Random Access Memory (RAM) for the system features. It is housed inside the Processor Module. The MERLIN II Release 3 Feature Module(517F6) must be used only with the 517B7 Processor Module.

● Line and station modules. Line and station modules

provide jacks for the system’s tie lines, outside lines, and stations. Line and station modules can occupy slots 1 through 5 in the basic carrier and slots 6 through 11 in the expansion carrier. There is no required slot assignment for line and/or station modules except that the module in slot 1 of the basic carrier must be a 408 or 008 module. Either of these modules provides the user with an analog station port

(port 01) to administer the system.

> Analog line and station modules:

—

4-Line/8-Analog (408) Module.

module is required for a MERLIN II system minimum configuration. It has four jacks for outside lines and eight jacks for analog stations. The 408 module has a Power Failure Telephone (PFT) jack for connecting a Basic Touch-Tone or rotary telephone for backup during power outages. The system automatically switches service to this jack in the event of a power failure.

Simultaneous voice and data is available but requires you to connect both an odd and even numbered jack to the same voice terminal.

The 408

System Hardware 1-21

– 8-Analog (008) Module. The 008 module has

jacks for eight analog stations. It has no jacks

for outside lines. Simultaneous voice and data

is available but requires you to connect both an odd and even numbered jack to the same voice terminal.

– 4-Line (400) with DTMF Module. The 400

module has jacks for four outside lines and one PFT jack. The board has four Touch-Tone receivers.

– 8-Line (800) Module. The 800 module has

jacks for eight outside lines and two PFT

jacks.

E&M Tie Line (400 EM) Module. A tie line is a transmission facility dedicated to interconnect two private switching systems. The MERLIN II system Tie Line Module may be connected to another system locally or many miles away. Tie lines are provided by the telephone company.

Digital (008D) ModuIe. The 8-station digital module interfaces digital voice and data equipment to the system. Simultaneous Voice and Data is available on every port.

Basic Telephone (012) Module. The Basic Telephone Module permits Touch-Tone or rotary telephones to be used with the MERLIN II system. This module provides 12 station jacks and supplies the tip/ring interface and Touch-Tone circuitry needed for basic telephones. This module requires the installation of the Frequency Generator in the Power Supply Module.

The 517CI 3 Basic Telephone Module must be installed in order to use the MERLIN II Attendant.

1-22 System Hardware

Label

Power indicator

Auxiliary power input jack

On/Off switch

Power connector

Ground lug

Power supply module

FIGURE 1-5 Module controls and indicators.

MODULE CONTROLS AND INDICATORS

The from panel controls, indicators, and special

connectors (excluding line and station jacks) on control unit modules are described below. Refer to Figure 1-5 to locate these items.

Diagnostic 96-pin connector

SMDR port

Application port

Warning light

ocessor module (517B7)

for Release 3

Power Supply Module.

The controls and indicators for

this module are the following:

●

Power indicator. Its light goes on when power is

supplied to the module.

●

Auxiliary power input jack This jack provides the interface for the Auxiliary Power Unit.

System Hardware 1-23

Label

SMDR port

Application port

Status indicators (LEDs)

DIP switch (S2)

Port 4

Port 3

Port 2

Port 1

DIP switch (S1)

Tie line module (517A14)

Warning iight

label

Diagnostic 96-pin connector

Processor module (517A7)

for Feature Moduies 1 and 2

FIGURE 1-5 Module controls and indicators (continued).

●

On/off switch. This switch applies or removes power

to the earner.

●

Power connector. This is a male connector for the ac

power cord.

●

Ground lug. This connects the control unit chassis to

an approved ground for the building.

1-24 System Hardware

Processor Module.

This module has the following port

and light:

● SMDR port. This port is an interface to Station

Message Detail Recording (SMDR) for call reports on call activity or a printout of system administration.

●

Warning light. When this red light is lit it indicates

that there is a problem with either the Feature Module, line or station module, or the Processor Module.

Tie Line Module. The controls and indicators for this module are the following:

●

Status indicators (LEDs). The three status indicators

show the condition of the Tie Line Module.

Green = test condition Amber = busy Red = standby mode

●

Dual In-Line Package (DIP) switch (S2). This switch

controls the signaling format for tie line ports 3 and 4.

VOICE TERMINALS

●

DIP switch (S1). This switch controls the signaling

format for tie line ports 1 and 2.

●

Ports 4 through 1. These ports are jacks for tie lines.

Voice terminals are the user’s link to the MERLIN II system. They are designed to allow easy access to system features, and have various buttons and indicators to facilitate operation The buttons on a voice terminal can function as line buttons or feature buttons. There are fixed feature buttons for the transfer, hold, recall, conference and drop features.

Each analog voice terminal has a Test/Program (T/P) switch that allows testing, programming, and normal operation. Digital voice terminals are programmed using a dial code. Other controls on a voice terminal include a message button, speaker volume control, speaker ON/OFF button, and red and green lights to indicate status of lines and features.

System Hardware 1-25

Voice terminals work like special input/output (I/O) devices. The control unit performs all the decision making for the system while voice terminals act as the system’s sensors. Voice terminals inform the control unit of button depressions and feature status. They also inform the user of specific conditions by flashing lights or generating tones.

Voice terminals are connected to the control unit by a 4-pair wire. Each pair has a specific function:

●

Voice 1 pair. The control unit uses this pair of wires for the primary audio path to and from the voice terminal. The control unit selects this pair to complete the path for outgoing, incoming, and intercom calls.

●

Control pair. The control unit receives information on voice terminal status and user input on this pair of wires. It also uses this path to send ringing and lighting instructions to the voice terminal.

●

Power pair. This pair provides power to the voice terminal.

●

Voice 2 pair. The control unit uses this pair of wires for the secondary audio path to and from the voice terminals. This pair is used with the analog voice terminal to provide the Voice Announcement to Busy Voice Terminal and the Simultaneous Voice and Data features.

Voice terminals used with the MERLIN II system are listed here. Refer to Figure 1-6 for examples of analog

voice terminals, including the MERLIN II Display Console. Figure 1-7 shows digital voice terminals.

1-26 System Hardware

● Analog voice terminals

7102A

5-Button

10-Button

10-Button HFAI

10-Button with Built-In Speakerphone (BIS-10)

BIS-22

BIS-22 with Display

> >

34-Button

34-Button Deluxe

34-Button (SP-34)

34-Button (SP-34D)

BIS-34

BIS-34 with Display

Display Console (used to administer a system with Release 3)

NOTE:

The new 7102A single-line voice terminal

(not illustrated) has been certified for the MERLIN II system. It is the same as a basic telephone and must be connected to a 012 module.

●

Digital voice terminals

> 7406D > 7406D with Display > 7406D with Data Stand

> 7406D with Display and Data Stand

System Hardware 1-27

+ 374 hidden pages