Nortel Meridian 1 Option 11C Compact Technical Reference Manual

Page 1

Meridian 1

This Nortel documentation is protected by copyright. It may not be copied in any form or medium except puruant to the Nortel License to Copy Documentation ("License"). If a License has been purchased, it will be enclosed with this copy of Nortel documents.

Option 11C Compact

Technical Reference Guide

Document Number: 553-3121-100 Document Release: Standard 2.0 Date: September , 1998

Year Publish FCC TM

Printed in Canada

Information is subject to change without notice. Nortel reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant. This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules.

Meridian 1, Option 11C and Compact are trademarks of Nortel (Northern Telecom).

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 2

Revision history

September 1998

Release 2.0, Standard

November, 1997

Release 1.0, Standard

Meridian 1 Option 11C Compact Technical Reference Guide

Page 3

553-3121-100 Standard 2.0 September 1998

Page 4

About this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Chapter 1 — Provisioning . . . . . . . . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Provisioning a new system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Forecasting trunk and line growth . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Calculati ng number of trunks required . . . . . . . . . . . . . . . . . . . . . . 2

Calculating number of lines required . . . . . . . . . . . . . . . . . . . . . . . 2

Worksheet A: Trunk Forecast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Worksheet B: Line forecast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Provisioning conference channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Conference channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Assigning equipment and preparing equipment summary . . . . . . . . . . 5

Worksheet C: System cabinet requirements . . . . . . . . . . . . . . . . . . 6

List the card slot assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Worksheet D: Card Slot Assignments . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 2 — Transmission parameters . . . . . . . . . 11

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Loss Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Insertion loss limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Input Impedance and Balance Impedance . . . . . . . . . . . . . . . . . . . . . . 19

Return Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Transhybrid Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Idle Channel Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 5

ii Contents

Impulse Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Total distortion including quantization distortion . . . . . . . . . . . . . . . . 25

Spurious in-band signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Spurious out-of-band signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Discrimination against out-of-band signals . . . . . . . . . . . . . . . . . . . . . 26

Intermodulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Group Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Absolute group delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Group delay distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Longitudinal balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Chapter 3 — Spares planning . . . . . . . . . . . . . . . . . . 31

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Definitions and assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Calculating spares requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Failure rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

NFT values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Chapter 4 — Power supplies . . . . . . . . . . . . . . . . . . .39

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Power Supply features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Ringing Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Power supply LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Under-voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Overvoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Power Fail Transfer (PFT) operation . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Commercial Power Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

553-3121-100 Standard 2.0 September 1998

Page 6

Contents iii

Chapter 5 — NTMW01 Small System Controller . . 45

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

NTMW01 Small System Controller card . . . . . . . . . . . . . . . . . . . . . . . 45

Chapter 6 — SDI ports . . . . . . . . . . . . . . . . . . . . . . . 49

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Small System Controller (SSC) card . . . . . . . . . . . . . . . . . . . . . . . . . . 49

NTMW10 Fiber Receiver card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Connection to external equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Chapter 7 — Meridian Modular Telephones . . . . . . 53

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Peripheral equipment requirements . . . . . . . . . . . . . . . . . . . . . . . . . 53

General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Features and options matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Optional equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Environmental and safety considerations . . . . . . . . . . . . . . . . . . . . 68

Line engineering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Local alerting tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Meridian Programmable Data Adapter . . . . . . . . . . . . . . . . . . . . . . 77

Chapter 8 — M2250 Attendant Console. . . . . . . . . . 79

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Physical details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Keyboard layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Display screen messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Local console controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Busy Lamp Field/Console Graphics Module Busy Lamp Field/Console

Graphics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 7

iv Contents

Chapter 9 — NTMW05 Digital Line Card . . . . . . . . . .93

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Functional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Technical summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Foreign and surge voltage protections . . . . . . . . . . . . . . . . . . . . . . 95

Chapter 10 — NTMW06 Analog Line Card . . . . . . . .97

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Functional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Technical summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Analog line interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Foreign and surge voltage protections . . . . . . . . . . . . . . . . . . . . . . 102

Overload level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Chapter 11 — NTMW07 Trunk/Line Card . . . . . . . .103

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Trunk types supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Slot assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Power Fail Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Foreign and surge voltage protection . . . . . . . . . . . . . . . . . . . . . . . 109

Release control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

PAD switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Loop start operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Ground start operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Direct Inward Dial operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Tie Two-way Dial Repeating operation . . . . . . . . . . . . . . . . . . . . . 113

553-3121-100 Standard 2.0 September 1998

Page 8

Contents v

Tie Outgoing Automatic Incoming Dial operation . . . . . . . . . . . . . 113

Recorded Announc ement operation . . . . . . . . . . . . . . . . . . . . . . . . 113

Paging operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Chapter 12 — NTMW44 Universal Trunk Card . . . 115

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Trunk types supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Slot assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Foreign and surge voltage protection . . . . . . . . . . . . . . . . . . . . . . . 120

Release control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

PAD switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Loop start operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Ground start operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Direct Inward Dial operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Tie Two-way Dial Repeating operation . . . . . . . . . . . . . . . . . . . . . 124

Tie Outgoing Automatic Incoming Dial operation . . . . . . . . . . . . . 124

Recorded Announc ement operation . . . . . . . . . . . . . . . . . . . . . . . . 124

Paging operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Chapter 13 — NTMW04 1.5 Mb DTI/PRI . . . . . . . . . 127

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Foreign and surge voltage protection . . . . . . . . . . . . . . . . . . . . . . . 129

Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Signaling interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Digital pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

D-Channel Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 9

vi Contents

Clock controller interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Mode of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Chapter 14 — NTMW50 RS232 Service Module

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Switch and LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Chapter 15 — Fiber optic cable and interfaces . . . 135

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Fiber optic cable interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

NTDK22 Fiber Expansion da ughter board . . . . . . . . . . . . . . . . . . . 135

NTMW10 Fiber Receiver card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Plastic Fiber Optic cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

553-3121-100 Standard 2.0 September 1998

Page 10

viii

vii

About this guide

This Technical refer ence guide c ontains det aile d t echni cal i nforma tion a bout the Meridian 1 Option 11C Compact system. It includes such things as :

• circuit cards information

• spares planning

• SDI ports information

• transmission parameters

• Meridian modul ar telephone sets

• M2250 attendant console

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 11

viii About this guide

553-3121-100 Standard 2.0 September 1998

Page 12

Page 1 of 136

Chapter 1 — Provisionin

Introduction

This chapter out lines the procedures required to determine equip ment requirements.

Provisioning a new system

Provisioning a new system consists of:

• Defining and forecasting growth.

• Calculating num ber of trunks required.

• Calculating num ber of lines required.

• Assigning equipment and preparing an equipment summary.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 13

Page 2 o f 136 Chapter 1 — Provisioning

Forecasting trunk and line growth

The first step i n provisioni ng a new system is to forecast t he number of trunks and lines require d at two-year and five-year interva ls .

The number of t runks a nd line s re quired whe n the system i s pla ced i n serv ice (cutover) is determined by the customer. If the c us tom er is unable to provide a two-year and five-ye ar growth forecast, then an estimate of an nual growth is used to e stimate the number o f trunks and line s required a t the two-y ear and five-year intervals.

Calculating number of trunks required

Enter the quantity of each type of trunk required in Worksheet A. This determines t he number of trunk cards required at cut over, two-year, and five-year intervals.

Calculating number of lines required

Enter the quantity of each type of analog and digital line required in Worksheet B. This determines the number of Meridian Digital Telephone TNs and Analog (500/2500 ty pe) TNs required at cutover, two-year, and five-year intervals.

553-3121-100 Standard 2.0 September 1998

Page 14

Worksheet A: Trunk Forecast

Customer: ________________________________ Date: _________________

NTMW07 Trunk/Line Card Forecast Worksheet

Trunks Cutover 2 years 5 years

2-way 1-wa y in 1-wa y o ut DID Tie CCSA InWATS OutWATS FX Private line Dial dictation

Chapter 1 — Provisioning Page 3 of 136

Paging RAN AIOD CO

Total

= Number of NTMW07 cards needed

Multiply number of NTMW07 by 4

Each NTMW07 Trunk/Line card is provides four trunk TNs, four analog line TNs and one power fail

Note:

transfer cir cu it. See "Chapt er 11 —NTMW 07 Trunk/Line Card"

= Analog lines available

Divide Total by 4

for details.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 15

Page 4 o f 136 Chapter 1 — Provisioning

Worksheet B: Line forecast

Customer: ________________________________ Date: _________________

Digital Line TN Forecast Worksheet_

Digital Telephone Line TNs

Attendant Con sole TNs (i ncluding TNs for power, see

Digital Telephone Line TNs

= number of NTMW05 cards needed

Note:

See "Chapter 8 —M2250 Attendant Console" for power ing options.

Note

) See

Divide total by 24

Note.

Total

Quantity

at Cutover

Analog Line TN Forecast Worksheet

Quantity

Analog Telephone Line TNs

Analog Telephone line (500/2500-type) TNs

Total

Minus 4 x number of NTMW07 cards in

system

at Cutover

Quantity

in 2 years

Quantity

in 2 years

Quantity

in 5 years

Quantity

in 5 years

= additional analog TNs needed

= number of NTMW06 cards needed

Note:

transfer circuit. See "Chapter 11 —NT MW07 Tr un k/ Line Card "

553-3121-100 Standard 2.0 September 1998

Divide additional TNs by 16

Each NTMW 07 Tru nk/Line card is provides four trunk TNs, four analog line TNs and one power fail

for details.

Page 16

Chapter 1 — Provisioning Page 5 of 136

Provision ing conference channels

Conference channels

The conference function is provided by the NTMW01 Small Syste m Controller (SSC) card. Two conference circuits are always active, a third becomes active when the expansion cabinet is equipped.

Each conference cir cuit supports 16 conferees. Therefore the SSC card supports a total of 32 conferees.

The Fiber Expansion Daughterboard supports an a dditional conference circuit. Therefore a total of 48 conferees are supported when the SSC card is equipped with a Fiber Expansion Daughterboard.

Assigning equipment and preparing equipment summar

Use Worksheet C to record the equipment requirements for the complete system at c utov er. Ass ign the e quipment. The eq uipment s umm ary may h ave to be updated as a result of assignment procedures.

Use the finaliz ed equi pment summar y (Workshee t C) to ord er th e equip ment for the system.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 17

Page 6 o f 136 Chapter 1 — Provisioning

Worksheet C: System cabinet requirements

Customer:________________________________________ Date: ______________

Prepare one workshe et for t he syst em at cutover, 2- year , and 5 -year in terval s.

PE Card Ca lculati o ns Worksheet

Number of NTMW05 Digital Line cards Number of NTMW06 Analog Line cards Number of NTMW07 Trunk/Line cards

Cutover 2 years 5 years

Number of NTMW04 DTI cards (See

Note:

See "Chapter 9 —NTMW05 Digital Line Card" for information about the DTI card.

Note

)

Total

553-3121-100 Standard 2.0 September 1998

Page 18

List the card slot assignments

NTMW05, NTMW06

Refer to Figure 1 and Figure 2 for card slot ass ignm ents and list them on Worksheet D.

Figure 1 Card slot assignments in Main Cabi net

Main Cabinet

Chapter 1 — Provisioning Page 7 of 136

NTMW04, NTMW05, NTMW06, NTMW07

1&2 3&4 5&6

NTMW11

Power Supply

NTMW01

SSC

NTMW02

V Mail

CPU

CPU MMail

Card

789

Card

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 19

Page 8 o f 136 Chapter 1 — Provisioning

Card

NTMW05, NTMW 06

Figure 2 Card slot assignments in Expansion Cabinet

Expansion Cabinet

NTMW05, NTMW06, NTMW07

11&12 13&14 15&16

NTMW11

Power Supply

NTMW10

Fiber

Receiver

Empty

Slot

Card

17 18 19

Card

553-3121-100 Standard 2.0 September 1998

Page 20

Chapter 1 — Provisioning Page 9 of 136

Worksheet D: Card Slot Assignments

Main and Expansion

Cabinet

Card Assignment

Slot

Number

1 & 2 11 & 12 3 & 4 13 & 14 5 & 6 15 & 16

7 17 8 18 919

10 Mail 20 Not used

Card Type

Main and Expansion

Cabinet

Card Assignment

Slot

Number

Card Type

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 21

Page 10 of 136 Chapter 1 — Provisioning

553-3121-100 Standard 2.0 September 1998

Page 22

Page 11 of 136

Chapter 2 — Transmission parameters

Introduction

The Meridian 1 Opti on 11C Com p act system uses µ-Law companding to convert signals from analog to digital and from digital to analog.

Transmission characteristics are given in this chapter. Except where indicated otherwise, the design objectives given are met when measured between 2 wire and 4 wire analog input and output interfaces terminated with their nominal impedance.

The reference frequency is 1024 Hz. The reference level is -10 dBmO (as an alternative a reference level of 0 dBmO may be used).

Transmission

Loss Plan

Insertion loss

The insertion loss of a private branch exchange (PBX) conn ection is defined as the differen ce between the power del ivered from the (test) re ference source into the input port and the power at the output port. For insertion loss tests both the signal source and the measurement ins trum ent have impedances of 600 ohms. The test frequency is 1024 Hz.

The insertion losses between various Peripheral Equipment (PE) ports are connection - specific in order to be compatible wit h end-to-end network connection loss requirements. The Op tion 11C Compact loss specifications are in ag r eement with North American standards, which are for mulated to provide satisfactory end-to-end performance for connections within private networks and between private and public networks.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 23

Page 12 of 136 Chapter 2 — Transmission parameters

The los s plan strategy fo r PE combines electrical loss with terminal acoustic parameters for optimum transmission performance. For this reason, some connections have asymmetrical loss in order to conform with network loss plans. This asymmetry is resolved at a remote point (another switch) in the overall connection.

Tables 1

, 2 and 3 provide loss values measured in decibels (dB) for

connections between:

• PE ports (lines and trunks)

• Digital ports (PRI or DTI)

Tables 1

, 2 and 3 are in matrix format; note the direction of the arrows when

searching for a lo ss v alue.

553-3121-100 Standard 2.0 September 1998

Page 24

Chapter 2 — Transmission parameters Page 13 of 136

Table 1 Insertion Loss from PE Ports to PE Ports (measured in dB)

PE Ports

500/2500 Line

Digital Line

CO/FX/WATS

Loop Tie

Trunk

500/2500 Line Digital

Line

2.5

3.5

2.5

-3.5

4 Wire (ESN)

E&M Trunk

-0.5

CO/FX/WATS

Loop Tie

Tr unk

0.5

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 25

Page 14 of 136 Chapter 2 — Transmission parameters

Table 2 Insertion Loss Digital Ports T o PE Ports (measured in dB)

PE Ports

Digital Ports

Tie Trunk

Satell it e Tie

Trunk

(See Note 1

CO/FX/WATS

Loop Tie Trunk

Toll Office

(See Note 2

)

500/2500 Line Digital

Line

8.5

2.5

0.5

2.5

-3

2.5

4.5

CO/FX/WATS

2.5

-0.5

0.5

-1

Loop Tie

Tr unk

-2.5

-0.5

8.5

2.5

Primary Rate

Interface (PRI )

(See Note 3

553-3121-100 Standard 2.0 September 1998

)

6.5

3.5

5.5

2.5

0.5

-2.5`

Page 26

Chapter 2 — Transmission parameters Page 15 of 136

Notes to Table 2

Note 1: A satellite tie trunk connects a satellite or tributary PBX to a main PBX. A t ributary PBX doe s not have its own directory number for incom in g calls.

Note 2: The toll office designation is for a trunk to an office in the public swit ched network wit h a higher rank tha n the local office (clas s 5).

Note 3: The 1.5Mb PRI a nd DTI have digi ta l pads wh ich ar e con trolle d by Option 11C Compact sof tware to provide the inserti on loss given in

Table 2

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 27

Page 16 of 136 Chapter 2 — Transmission parameters

Table 3 Electrical loss Digital ports to Digital ports (measured in dB)

Digital ports

Digital Ports

Tie Trunk

Satell ite Tie

Tr unk

(See Note 1

CO/FX/WATS

Loop Tie Trunk

Toll Office

(See Note 2

)

Tie Trunk

(See Note 1

Satell ite Tie

Trunk

CO/FX/WATS

Loop Tie

Trunk

)

Toll Office

Trunk

(See Note 2

Primary Rate

Interface

(PRI)

)

(See Note 3

)

Primary Rate

Interface (PRI)

(See Note 3

553-3121-100 Standard 2.0 September 1998

)

Page 28

Chapter 2 — Transmission parameters Page 17 of 136

Notes to Table 3

Note 1: A satellite tie trunk connects a satellite or tributary PBX to a main PBX. A t ributary PBX doe s not have its own directory number for incom in g calls.

Note 2: The toll office designation is for a trunk to an office in the public swit ched network wit h a higher rank tha n the local office (clas s 5).

Note 3: The 1.5Mb PRI a nd DTI have digi ta l pads wh ich ar e con trolle d by Option 11C Compact sof tware to provide the inserti on loss given in

Table 3

Insertion loss limits

Table 4 gives the analog insertion los s limits for trunk and line conne ctions.

Table 4 Insertion loss limits

Connection Insertion Loss Variation Limits (dB)

Line — Line +1.0 Line — Analog Trunk + 0.7 Line — Digital Trunk +0.7 Analog Trunk — Analog Trunk +0.7 Analog Trunk — Digital Trun k +0.7 Digital Trunk — Digital Trunk +0.2

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 29

Page 18 of 136 Chapter 2 — Transmission parameters

Freque ncy Response

Frequency Response (Attenuation Dist ortion) at a given frequency is the difference between the loss a t the test frequency and the loss at the refe rence frequency. Table 5

Ta ble 5 Frequency Response

Frequency (Hz) Minimum Maximum

200 0 5

300 -0.5 1.0 3000 -0.5 1 3200 -0.5 1.5 3400 0 3.0

Notes to Table 5

gives the frequency response for 2 wire interfaces.

2 Wire Interface

• The symbol (+) denotes a loss and the symbol (-) denotes a gain.

• Reference Sources: 1024 Hz -10 dBmO

553-3121-100 Standard 2.0 September 1998

Page 30

Chapter 2 — Transmission parameters Page 19 of 136

Input Impedance and Balance Impedance

Input Impedance for a port is the impedance as seen looking into the port from the tip and ring.

The Balance Impeda nce is the output source impedan ce of the port and is designed to match the impedance of the transmission line plus the far end trunk.

Table 6 Input impedance/balance impedance

Connection

500/2500 Line 600 600

DID/DOD/LOOP

TIE Trunk C.O.Trunk 600/900 600/3COM

Input

Impedance

600/900 600/3COM

(3 COM is the EIA termination of 350 + 1000//0.21 µ F)

Balance Impedance

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 31

Page 20 of 136 Chapter 2 — Transmission parameters

Return Loss

The return loss measur es how closely th e input impedanc e matches the required impedance (source impedance). Return loss at an impedance discontinuity in a transmission path is the ratio (in dB) of the power level of an incident signa l to the power level of the resul ting reflected signal .

Echo Ret urn Lo ss (E R L) is a w ei ghted average of the r et u r n loss value ov e r the frequency range of 500 to 2500 Hz.

Single F requency Ret urn Los s (SFRL) i s the l owest valu e of retur n loss in the frequency range of 200 to 3200 Hz.

The return loss is measured against its characteristic input impedance (see Table 7).

Reference Source is 0 dBmO.

Table 7 Return Loss

Interface Echo Return Loss (dB)

2 Wire Line >18 >12

2 Wire Trunk >22 >17

553-3121-100 Standard 2.0 September 1998

Single Frequency

Return Loss (dB)

Page 32

Transhybrid Loss

The source im pedance of a two wire interface mu st match the term inating impedance (line plus telephone set or line plus far end trunk). If the sourc e impedance doe s not m atch, there wil l be a pro ble m with sta bi lity an d li sten er echo.

The values for the transhybrid (return) loss of a 2 wire interface when terminated in its balance impedance is given in Table 8.

Reference Level is 0 dBmO

Table 8 Transhybrid loss

Chapter 2 — Transmission parameters Page 21 of 136

Input Frequency

(Hz)

300 16

500 20 2500 20 3400 16

T ranshybrid Return Loss

(dB)

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 33

Page 22 of 136 Chapter 2 — Transmission parameters

Idle Channel Noise

Idle channel noise is noise in the absence of a sign al. It is the short-term averag e ab so lute no ise po w er, measur e d wi th C- m es sage wei g ht i ng . The 3 k Hz flat measurement uses equal weighting for all f r equencie s in the 20-3000 Hz range. The values are sho wn in Table 9.

Table 9 Idle Chan n e l N o is e

Message

Noise

Connection

Line — Line <20 <29

Line — Trunk <20 <29

Trunk — Tr unk <20 <29

Impulse Noise

Impulse noise is defined as noi se bursts or spikes tha t exceed normal pe aks of idle-channel noise. Impulse noise is measured by counting the number of spikes exceeding a pre-set threshold; it is the number of counts above 55 dBm0 during a five minute interval, under fully loaded busy hour PBX traffic conditions.

dBrnC0

3 kHz dBm0

T able 10 Impul se N o is e

Time Level Counts

5 Minutes >55 dBmO 0

553-3121-100 Standard 2.0 September 1998

Page 34

Chapter 2 — Transmission parameters Page 23 of 136

Variation of gain versus level

The variation of gain verses level (tracking error) measures how closely changes in input levels causes corresponding changes in output levels.

The tracking error is meas ured in decibels and is defin ed as the deviation in gain or loss through a range of input level relati ve to the gain or loss at the reference frequency a nd level of 0 dBmO.

There are two methods of mea suring the tracking err or.

Method 1

When a noise signal as defined in CCITT recommendation 0.131 is applied at the input of any int erface, the gain versus level deviation at the output meets the limits set out in Table 11.

Table 11 Var iation of gain versus level me thod 1

Input Level

dBm0

-55 to -10 +/-0.5

Alternative ly, when a sine wave input in the frequency range 700 - 1100 Hz is applie d at t he inp ut of a ny inter face, t he gai n vs leve l devi ation at th e outpu t meets the limit s gi ven in Table 12.

Gain Variat io n

Reference frequency:

• 700 - 1100 Hz

• 1024 Hz

T able 12 Var iation of gain versus level me thod 1

Input Level

dBm0

-10 to +3 +/-0.5

Meridian 1 Option 11C Compact Technical Refer ence Guide

Gain Variat io n

Page 35

Page 24 of 136 Chapter 2 — Transmission parameters

Method 2

With a sine wave in the frequency rang e of 700-1100 Hz applie d to the input port of any interface, the variation of the gai n versus level at the output port meets the limit s gi ven in Table 13.

Reference frequency:

• 700-1100 Hz

• 1024 Hz

T able 13 Var iation of gain versus level me thod 2

Input Level

dBm0

-37 to -50 +/-1 0 to 37 +/-0.5

Gain Variat io n

553-3121-100 Standard 2.0 September 1998

Page 36

Chapter 2 — Transmission parameters Page 25 of 136

Total distortion including quanti zation dist o rt ion

The quantization distortion is the difference between the original analog signal and the analog signal (signal plus noise) resulting from the decoding process. The re are two methods of measuring the quantization distortion:

Method 1

With a noise signal corresponding to CCITT recomm endation 0.131 applied to the input int erfac e, the tota l di stort ion me asured a t the outp ut i nterfa ce li es above the limit given in Table 14.

T able 14 T otal distortion meth od 1

Input Signal

dBmO

-55 11.1 13.1

-40 26.1 28.1

-34 30.7 32.7

-27 to -6 32.4 34.4

-3 24.0 26.8

Analog — AnalogdBDigital — Analog

Method 2

With a sine wave at the reference frequency is applied to the input inte rface, the total distortion mea sured at the output port interfac e lies above th e limit given in Table 15

Reference frequency:

• 1020 Hz

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 37

Page 26 of 136 Chapter 2 — Transmission parameters

T able 15 T otal distortion meth od 2

Input signal

dBm0

-45 22 24

-40 27 29

-30 to 0 33 35

Analog — Analog

Spurio us in-band signal

When a sine wave signal in th e range of 700-1100 Hz, at a level of 0 dBmO is applie d to the input port, the output level (at any fr equency other than that of the applied signal,) is less than -40 dBmO when measured selectively in the band 300-3400 Hz.

Spuriou s ou t-of-b an d signal

When a sine wave signal in th e range of 300-3400 Hz, at a level of 0 dBmO is applied to the input port, the level of spurious out-of-band image signals measured selectively at the output por t is lower than -25 dBmO.

Discrimi nation against out-of-band signals

With any sine wave signal above 4.6 kHz applied to the input port at -25 dBm0, the leve l of any image frequenc y produced at the output is at lea st 25 dB below the level of the test signal.

Digital — Analog

Intermodulation

When two sine wave signals, f1 and f2, in the range of 450 to 2050 Hz, not harmonically re lated and of equal level in the range -21 to -4 dBmO are applied to the input, they do not create any 2f2-f1 intermodulation product greater than 35 dB below the power level of the input signal.

553-3121-100 Standard 2.0 September 1998

Page 38

Group D ela

Absolute group delay

Group delay distortion

Chapter 2 — Transmission parameters Page 27 of 136

The absolute grou p delay is the minimum group delay measured in the frequency band 500- 2800 Hz. The absolute group delay mee ts the limits given in Table 16.

T able 16 Absolute group delay

Absolute Group

Interface type

Analog — Analog 3000

Analog — Digital 2700

Digital — Digital 2400

Delay Microseconds

The group delay dis tortion is the dif ference bet ween the absolu te group delay (minimum delay) and the group delay in the range 500 to 2800 Hz.

T able 17 Group delay distortion

Group delay distortion

Frequency range

500-600 1800

600-1000 900 1000-2600 300 2600-2800 1500

Meridian 1 Option 11C Compact Technical Refer ence Guide

Microseconds

Page 39

Page 28 of 136 Chapter 2 — Transmission parameters

Longitudinal balance

Longitudinal balance defines the amount of impedance balance that exists between the tip and ring conductor with respec t to ground. Longitudinal balance is measured by injecting a longitudinal signal on the tip and ring conductors with res pect to ground and measuring the amount of si gnal (noise) that is introduced between the tip and ring. The equation for calculating longitudi nal balance is:

Longitudinal Balance = 20 Log Vs/Vm

Vs is the disturbing longitudinal voltage and Vm is the tip to rin g met allic noise voltage. Ideally the metallic noise voltage would be negligible and the longitudinal balance would approach infinity.

T able 18 Longitudinal balance for loop start interfaces

Frequency

200 58 63

500 58 63 1000 58 63 3000 53 58

Minimum balance

Avera ge bal a nce

553-3121-100 Standard 2.0 September 1998

Page 40

Crosstalk

Chapter 2 — Transmission parameters Page 29 of 136

Crosstalk is speech signal (signalling) energy transferred from one voice channel to another. The crosstalk coupl ing loss for every possible ty pe of connections ov er the fr equency range of 2 00 to 3200 Hz is shown in Table 19.

Test Source:

Frequency 200-3200 Hz 0 dBmO.

T able 19 Crosstalk

Minimum Attenuation

Connection type dBm0 dBm0

Line — Line >65 >75 Line — Trun k >65 >75 Trunk — Trunk >65 >75

Design Objective

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 41

Page 30 of 136 Chapter 2 — Transmission parameters

553-3121-100 Standard 2.0 September 1998

Page 42

Chapter 3 — Spares plannin

Introduction

Spares planni ng is used to determine desired inventory levels of spares (replaceable ) it ems. Spare s pla nning is used by repa ir house s and c entral ized depots in order to ensure that there is an adequate sto ck of replaceable ite ms on hand.

This section will provide the information necessary to calculate spares for the Meridian 1 Option 11C Com pact system.

Definitions and assumptions

Failure ra t e: Spares planning is based on the Failure rate of the repla ceable part. The failure rate is defined as the esti mated number of failures for that

item during one million (10

hours of operation.

Page 31 of 136

Sparing interval: the sparing interval is the period of time that the stock of items should la st without being re plenishe d. This period is assumed to be one year after the installation of the system.

Stock confidence level: the stock confidence le vel is the allowed probabil ity of not going out of stock during the sparing interval. This is assumed to be greater than 99.9 percent.

Turnaround time for repair: the turnaround time for re pair is the l ength of time it ta kes to repair a fai led spa r es it em.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 43

Page 32 of 136 Chapter 3 — Spares planning

)

The turnaround t im e from a repair house is estimated to be 10 working days (240 hours). (See Figure 3).

Figure 3 Single depot or repair house ser vice

2345

10-Day Turnaround Time (240 hrs.

Repair House

Depots

The turnaround ti me fr om a cent ralized depot is estimated to be 2 working days (48 hours). (See Figure 4

553-3121-100 Standard 2.0 September 1998

Page 44

Figure 4

Central Depot

)

Repair House

)

Centralized depot service

Chapter 3 — Spares planning Page 33 of 136

2345

2-Day Turnaround Time (48 hrs.

10-Day Turnaround Time (240 hrs.

Depots

Actual turnaround periods will vary in the fie ld. Population range: the population range i s the qua nt ity of Meri dian 1 Opti on

11C Compact systems in the area served by the depot. Spare stock size: the spare stock s ize for a given it em depends on t he sparing

interval, stock confide nce level, failure rate, turnaround time for repai r, a nd population range.

Calculating spares requirements

The quantity of a replaceable item that is required to stock a depot for one year can be calculated using a formula:

N x F x T

The spares planning formula has the following components: N — The number of a spares item in use.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 45

Page 34 of 136 Chapter 3 — Spares planning

F — The failure rate of a particular spares item. T — The turnaround time for repairing a fai led spares item in hours.

The formula produces a n NFT value. The number of spares required for a o ne year period may be found by looking up the NFT value i n Table 21, “ Number

of spares required,” on page 37.

Procedure 1 provides an example of spares planning for th e NTMW07 card.

Procedure 1 Determining spares quantities for a one year spar ing interval

1 Determine the number (N) of the particular item that is being servic ed

by the depot.

For example, a single depot services 10,000 Uni versal Trunk Cards.

2 Determine the failure rate (F) for t he specified item.

From the Failure rates listed in Table 20 Universal Trunk Card is 0.44

3 Determine the turnaround time (T) in hours.

Assume a centrali zed depot with a turnaround time of 48 hours.

4 C a lc ul a te th e NF T valu e b y mu lt ip ly in g N x F x T.

NFT = (10,000 units x 0.44

From the NFT values in Table 21 NFT value 0.21= 4.

Therefore, four NTMW07 cards are needed to last an interval of one year when servicing 10, 000 NTMW07 cards.

x 48 hours)/1,000,000 = 0.21

, the failure rate for the

, the number of spares req uired for

—————————— End of Procedure ——————————

553-3121-100 Standard 2.0 September 1998

Page 46

Failure rates

Chapter 3 — Spares planning Page 35 of 136

The failure rate s in Table 20 are for the Option 11C Compact system components.

Note: Rates for circuit cards are based on 40°C ambie nt temperature.

T able 20 Failure rates for system components

Failure rate per

6 hrs.

NT code Description

Circuit cards:

NTMW01 Small System Controller

card NTMW02 Mail CPU 1.41 NTMW03 4-Port Mail

Daughterboard NTMW04 DTI/PRI card 0.80 NTMW05 Digital Line Card 0.72 NTMW06 Analog Line Card 1.48 NTMW07 Line/Trunk Card 0.44 NTMW10 10 m Receiver card 1.21 NTMW11 Power supply 0. 94 NTMW12 Analo g Line

daughterboard

NTDK21 Software Daughterboard 0.63 NTDK22 10 m Fiber

Daughterboard

—Continued—

1.67

0.69

0.48

1.21

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 47

Page 36 of 136 Chapter 3 — Spares planning

NT code Description

T elephone sets:

NTZK06 M2006 telephone 3. 08 NTZK08 M2008 telephone 3. 10 NTZK16 M2616 telephone 3. 88 NTZK22 M2216ACD-1 telephone 4.68 NTZK23 M2216ACD-2 telephone 5.37

NT6G00 M2250 TCM Console N/A

- End -

Failure rate per

6 hrs.

553-3121-100 Standard 2.0 September 1998

Page 48

NFT values

Chapter 3 — Spares planning Page 37 of 136

Table 21 translates NFT values to the number of spa res required in stock:

N—Number in use F—Failure rate T—Turnaround time (in hours)

T able 21 Number of spares required

Number

NF T values

0 0.0010 1

0.0010 0.0452 2

0.0452 0.1890 3

0.189 0.425 4

0.425 0.734 5

0.734 1.090 6

of spares

1.09 1.50 7

1.50 1.95 8

1.95 2.43 9

2.43 2.94 10

2.94 3.46 1 1

3.46 4.01 12

4.01 4.58 13

4.58 5.16 14

5.16 5.76 15

5.76 6.37 16 —Continued—

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 49

Page 38 of 136 Chapter 3 — Spares planning

NF T values

6.37 6.99 17

6.99 7.62 18

7.62 8.26 19

8.26 8.91 20

8.91 9.57 21

9.57 10.20 22

10.2 10.90 23

10.9 11.50 24 1 1.5 12.20 25

12.2 12.90 26

12.9 13.60 27

13.6 14.30 28

Number

of spares

14.3 15.00 29

15.0 15.80 30

- End -

553-3121-100 Standard 2.0 September 1998

Page 50

Page 39 of 136

Chapter 4 — Power supplies

Introduction

This chapter desc ribes the Meridian 1 Option 11C Compact NTMW11AC Power Supply un it and the operat ion of t he Power Fail Transf er Uni t (PFT U).

Features

Dimensions and weight

The NTMW11 Power Supply measure app r oximately 12.5 in. (305 mm) high, 5 in. (127 mm) wide and 10 in. (245 mm) deep, and weighs approximately 12 lb (5.5 kg).

Power Supply features

The NTMW11 Power Supply has the foll owing features:

Voltage

• A current limiting circuit which limits the surge of current on the input line wh en th e s y ste m is f ir st s w it ch ed on.

• Genera t ion of a system line transfer signal.

• Differentia l mode and common mode EMI filtering of input.

The NTMW11 Power Supply provides +5.1 , +8.5, +15, -15V, -150V, -52V and filtered -48V.

There is a 1.0 second sta r t-up delay on the +5V rail.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 51

Page 40 of 136 Chapter 4 — Power supplies

Ringing Generator

The NTMW11 Power Supply provides the following ringing generator for telephones:

• Ringing voltage : 70, 75, 80, 86V.

• Ringing frequency: 20, 25, 50 Hz, switch selectable.

• Ring sync: A pulse 500 us wide, 6 or 11 ms (±3 ms) before the positive going zero crossing of the ringing waveform (11 ms for 20/25 Hz).

• Power: The output capability is 8VA which is capable of ringing 8CA4 ringers.

Power supply LED

The LED on the power supply faceplate is extinguished when there is a problem with the power supply.

Under-voltage

Under-voltage to the NTMW11 Power Supply resul ts in pa rti al failure of the Optio n 11 C Co mpac t sy stem. The faceplate LED exti n gu i sh es.

Under-volt age, in the case of +5.1V, result s in the complete shutdown of the system.

WARNING

Table 22

Power Supply.

553-3121-100 Standard 2.0 September 1998

outlines the nomi nal and under-voltage lim its of the NTMW11

Page 52

Chapter 4 — Power supplies Page 41 of 136

T able 22 Nominal and under-volt age limits

Nominal

Under-voltage

limit

Power supply status

+5.1V +3.8V Complete Shutdown

8.5V +6.4V Partial failu r e

-150V -100.0V Pa rt ia l fa ilu re +15V +11.2V Partia l fa ilu r e

-15V -11.2V P a rt ia l fa ilu r e

-48V -36.0V Partial failure Ring

70V Partia l fa ilu re

(Pk V)

-52V -45V Partia l fa ilu r e

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 53

Page 42 of 136 Chapter 4 — Power supplies

Overvoltage

An OVP (Over-Voltage Protection) circuit shuts down the power supply when the output voltage exceeds the li mits given in Table 23.

T able 23 Nominal and overvolta ge li mits

Nominal

voltage

+5.1V +6. 4V Complete Shutdown +8.5V +10.6V Complete Shutdown

-150V -187.5V Complete Shutdown +15V +18.7V Complete Shutdown

-15V -18.7V Complete Shutdown

-48V N/A N/A Ring

(Pk V)

-52V -58V Complete Shutdown

All outputs in a shutdown state are reset by the SSC ca r d .

Note: The system power does not automatically reset when there is overvoltage on the -52V DC output. Manual reset is r equired. The manual rese t b ut ton is lo c ated on the fac ep l ate of the SS C card.

Temperature sensor

The NTMW11 Power Supply is sensitive to the temperature of the cabinet and the system power. A thermostat is located at the top of the power supply unit. The input breaker trips for temperatures exceeding 175°F (80°C).

Overvoltage

limit

150V Complete Shutdown

Power supply status

553-3121-100 Standard 2.0 September 1998

Page 54

Chapter 4 — Power supplies Page 43 of 136

Power Fail Transfer (PFT) ope ration

The NTMW07 Line/Trunk card has a built-in Power Failure Transfer (PFT) feature, selectable by Jumper J1. It is designed to operate with a loop start trunk. This feat ure allows the connectin g one trunk on the card to an analog telephone on the same ca rd in the event of a commercial power or system failure.

Note: Ground start trunks require a telephon e s et e quipped with a ground start button to place outgoing calls when in PFT mode.

Power Fail Transfer (PFT) mode oc curs under any of the following conditions:

• The SSC card sends a signa l to activate PFT

• A power failure occurs

• A CPU failure occurs

• The fiber link to an expansion cabinet fails (PFT for that cabinet only)

The Terminal Numbers (TNs) tha t are equi pped to pe rform the PFT funct ion vary depending on the sl ot assignment in the cabinets. When a PFT occurs, the following are conne cted:

• In the Main cabinet

— When the NTMW07 card is in slot 1 & 2

TN 01 03 connects to TN 02 03 (Trunk on Card 01 Unit 03 connects to the telephone on Card 02 Unitþ03)

— When the NTMW07 card is in slot 3 & 4

TN 03 03 connects to TN 04 03 (Trunk on Card 03 Unit 03 connects to the telephone on Card 04 Unitþ03)

— When the NTMW07 card is in slot 5 & 6

TN 05 03 connects to TN 06 03 (Trunk on Card 05 Unit 03 connects to the telephone on Card 06 Unit 03)

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 55

Page 44 of 136 Chapter 4 — Power supplies

• In the Expansion cabinet

— When the NTMW07 card is in slot 11 & 12

TN 11 03 connects to TN 12 03 (Trunk on Card 11 Unit 03 connects to the telephone on Card 12 Unit 03)

— When the NTMW07 card is in slot 13 & 14

TN 13 03 connects to TN 14 03 (Trunk on Card 13 Unit 03 connects to the telephone on Card 14 Unit 03)

— When the NTMW07 card is in slot 15 & 16

TN 15 03 connects to TN 16 03 (Trunk on Card 15 Unit 03 connects to the telephone on Card 16 Unit 03)

Commercial Power Backup

An Un-interruptible Power Supply (UPS) may be connected to the Option 11C Compact system in order to provide a continuous supply of AC-power.

The UPS requirements are based on the following:

• The NTMW11 Power Supply is rated at 750 VA Maximum

• The Real Power is 460 W Maximum

• The Power Factor is approximately 0.6

• The power-up in-rush surge current is 35A maximum (120 VAC) A typical 80-li ne single ca binet syst em (CPU, Voice Mai l, three 24 DLC, one

PRI) will have a UPS load of approximately 360 VA.

Selecting a UPS is a function of the t otal power to be supplied multiplied by the total hold-up time desired.

553-3121-100 Standard 2.0 September 1998

Page 56

Page 45 of 136

Chapter 5 — NTMW01 Small System Controller

Introduction

This chapter describes the NTMW01 Small System Controller (SSC) card used exclusively with Meridian 1 Option 11C Compact systems.

NTMW01 Small System Controller ca rd

The NTMW01 Small Syste m Controll er (SSC) c ard co ntrols call process ing, stores system and c ust omer data, and provides an expansion interface. The NTMW01 SSC card is comprised of the following components and features:

• Flash daughter board memory, DRAM and Backup memory

• A fiber-expansion daughterboard interface

• One PC M CI A so ck et

• Three Serial Data Interface (SDI) ports

• 32 channels of Confere ncing

• One Ethernet (10 Mbps interface) port

• 30 channels of tone and digit switch (TDS) and up to 16 Digitone receivers (DTR)

• Networking and Peripheral Signalling

Memor

The majority of syst em and customer configured data is both controlled and stored on the NTMW01 SSC ca rd’s Flash ROM. An active and backup copy of customer data is also kept on the Flash ROM.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 57

Page 46 of 136 Chapter 5 — NTMW01 Sm all System Controller

Additional memory, referr ed to as DRAM on the NTMW01 SSC card, temporary stores and processes automated routines and user-programmed commands. The NTMW01 SSC ca rd also retains a copy of customer files in the event of data loss, in an area called the Backup flash drive.

The NTMW01 SSC card’s Flash daughterboard performs the significan t portion of system software storage and data processing for the Meridian 1 Option 11C Compact. The 32 Mbyte daughterboard is com prised of Flash ROM and Primary Flash drive.

The Flash ROM holds 24 Mbytes of ROM memory, comprising operating system data and overlay programs. Flash ROM is expandable using an expansion flas h daughterboard.

The Prima ry Flash dri ve co nta ins 8 Mbytes of sto rage sp ace. Most of the da ta storage is allocated to the Primary Flash drive - the main storage area of customer configured data.

Other s y stem dat a such as the Secure Storage Ar ea (SSA) also resides in the Flash drive. The SSA holds data that must survive power-downs.

Boot ROM i s a 2 Mbyte storage device located on the NTMW01 SSC card’s motherboard. It is comprised of boot code, system data, patch data and the backup copy of the Primary Flash drive’s customer database.

The NTMW01 SSC card is equipped with 8 Mbytes of temporary memory space called DRAM. DRAM functions much like RAM on a computer system, whereby system and user fil es are sto red whi le the sys tem is up and running. DRAM on the Meridi an 1 Option 11C Compact system stor es operating system files, overla y data, patch codes, and the active copy of the customer database.

Fiber Ex

ansion daughter board

An NTDK22 Fiber Expansion Daughte r Board mounted on the NTMW01 SSC card allows the installation of an expans ion cabinet up 33 ft (10 m) from the main cabinet. An A0632902 Fi ber Optic (multi-mode) plastic cable is used to connect the cabinets t ogether.

The daughter board also provides an additional 16-channel conferen ce loop and one SDI port at the expans ion cabinet.

553-3121-100 Standard 2.0 September 1998

Page 58

Chapter 5 — NTMW01 Small System Controller Page 47 of 136

Fib er Receiver card.

An NTMW10 Fiber Receiver card installed in the expansion cabinet is used to connect to the A0632902 Fiber Optic cable from the main cabinet.

PCMCIA interface

The NTMW01 SSC card has a PCMCIA interf ace through a socket lo cated on its fa ce pl ate . The PCMCI A so ck et can acco mm oda te a S oft w are Del ive ry card used as backup media.

SDI

orts

The NTMW01 SSC card contains three SDI ports used to connect on-si te terminals or remote terminals through a modem. The defa ult settings on the ports ar e as f o llows:

TTY Port

0 Set by a DIP switch 8 1 None M TC/SCH/BUG 1 1200 8 1 None MTC/SCH/BUG 2 1200 8 1 None MTC/SCH/BUG

Baud rate

Data

bits

Refer to "Chapter 6 —SDI ports"

Stop

bits

Parity Use

on page 49 of this guide for more

information on the SDI ports.

Conferencin

Thirty two confere nce channels are provid ed by the NTMW01 SSC card’s conference devices. Conference capability can be increased by 16 channels by mounting an NDK22 Expansion daughterboard on the NTMW01 SSC card: the maximum number of conference ports is 48.

A conference call can have three to six participants. To illustrate, you can have a maximum of five 3-party c onferences per device, or two 6-party conferences pl us one 3-party conference. I t is not possible to conference between conference devices.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 59

Page 48 of 136 Chapter 5 — NTMW01 Sm all System Controller

Ethernet Interface

The NTMW01 SSC card is equipped with a 10 Mbps Ethernet port. Ext ernal connections to the ethernet port is provided by a 15-pin connector loc ated in the main cabinet. This is a standard 15-pin AUI interface for a MAU.

553-3121-100 Standard 2.0 September 1998

Page 60

Page 49 of 136

Chapter 6 — SDI ports

Introduction

This chapter des cribes the SDI ports on the Meri dian 1 Op tion 11C Com pact system. Serial Data Interfac e (SDI) ports are used to connect devices such as terminals and mode ms to the Option 11C Compact. The two types of SDI ports supported are:

• Data Terminal Equipment (DTE); typically a TTY or computer and

• Data Communication Equipment (DCE); typically a modem Note: Both DTE and DCE ports ad here to either RS232 or RS422

communication standards.

SDI ports are found on the NTMW01 SSC card with an additional port located on the Fiber Receiver card in the expansion cabinet.

Small System Controller (SSC) card

The NTMW01 SSC card is equipped with three SDI ports.

Each port can be used to connect a modem or terminal to the system. If connection t o a te rminal is requir ed, an A037865 2 connector adapte r (NULL modem without hardware handshaking) is needed.

The SDI port connector is located at the bottom rear of the cabinet (An NTBK48 three-por t cable is requir ed to connect to system equipment.)

The Baud r ate f or po rt 0 is sel ected by s etti ng swi tches on t he facep late of the NTMW01 System Core card. Baud rates for ports 1 and 2 are set using overlay programs.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 61

Page 50 of 136 Chapter 6 — SDI ports

The baud rates avail able on all three ports are 300, 600, 1200, 2400, 4800, 9600 and 19200 baud. Table 24 shows the default settings.

T able 24 Default port configur ation

TTY

Number

0 0 0 MTC/SCH/BUG 1200/8/1/NONE 1 0 1 MTC/SCH/BUG 1200/8/1/NONE 2 0 2 CTY 1200/8/1/NONE

Card Port Use Configuration

NTMW10 Fiber Receiver card

The NTMW01 Fibe r Rece iver c ar d lo cate d in the e xpans ion cabi net s uppor ts one Serial Data Interface (SDI) port.

Parameter settings

Baud rates are selected by setting switches locate d in the faceplat e the Fiber Receiv er card. The av ailable se ttings are :

• 150, 300, 600, 1200, 2400, 4800, 9600 and 19200 baud Other RS232 parameters are fixed as shown in Table 25.

T able 25 Fixed parameter settings

Parameter Setting

Parity None

Mode Asynchronous Stop Bits 1 Data Bits 8

The port can be used for MTC/SCH/B UG modes.

553-3121-100 Standard 2.0 September 1998

Page 62

Chapter 6 — SDI ports Page 51 of 136

Connection to external equipment

The connection to external devices (such as TTYs, Modems and so on) is achieved thr ough the nine-pin SDI connector located in the expansion cabinet. It is extended to the external equipment with an NTAK1118 single port SDI cable.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 63

Page 52 of 136 Chapter 6 — SDI ports

553-3121-100 Standard 2.0 September 1998

Page 64

Page 53 of 136

Chapter 7 — Meridian Modular Telephones

Functional description

The Meridian Modular Telephones are designed to provide cost effective integrated voice and data communication capability. They interface with Meridian 1 Option 11C Compact using the Digital Line Card (DLC). No additio nal hardware is required at the line circuit to provide data communicati on.

Meridian Modular Telephones are connected to the system through a two-wire loop carryi ng two independent 64 Kb/s PCM Channels with associate d signaling channels. One of the two PCM channels is dedicated to voice while the other i s dedicat ed to data tra ffic. Li ne cords and h andset cords on all Meridian Dig ital Telephones are equipped with snap-in TELADAPT connectors for easy and quick connecting procedures.

Peripheral equipment requirements

The telephone interfaces with the NTMW05 Digital Line Card (DLC) in Meridian 1 Option 11C Compact. The digi tal line card supports 24 voice port s (units 0 through 23) an d eight Integrated Data ports (units 24 through 31, associated with voice units 8 through 15), ea ch of which supports one data and one voice channe l. A voice TN and a data TN are assigned in the software.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 65

Page 54 of 136 Chapter 7 — Meridian Modular Telephones

General description

This chapter describes the various features and capabilities of the following Meridian Modular Telephones.

M2006—a single line telephone with 6 programmable functi on keys. See Figure 5

M2008—a multi-line telephone with 8 programmable functi on keys. See

Figure 6

M2616—a high performance multi-line telephone wit h 16 pr ogrammable function keys and integrated Handsfree unit. See Figure 7

M2016S—a Telephone Securi ty Group Class II approve d telephone desig ned to provide on-hook se curity. It is similar to the M2616, with 16 programmable function keys, but has no handsfre e ca pability. See Figure 7 on page 57

M2216ACD-1—a multi-line telephone for ACD operations. It has 15 programmable function keys, a special ACD Display Module and two RJ-32 jacks for modular electret headsets. See Figure 8

M2216ACD-2—a multi-line telephone for ACD operations. It has 15 programmable function keys, and a special ACD Display. It is similar to model 1, but with one PJ-327 jack for a c arbon agent headset and one RJ-32 jack for an electret supervisor headset. See Figure 8

on page 55.

on page 56.

on page 57.

on page 58.

553-3121-100 Standard 2.0 September 1998

Page 66

Figure 5

M2006 modular telephone

Chapter 7 — Meridian Modular Telephones Page 55 of 136

Brandline ins ert

Switchook

Hold ke

Volume control

Speaker

Message W aiting lamp

Rls ke

Function keys and LCDs

553-1850

Dimensions:

• Length: 8.42 in. (215 mm)

• Width: 8.42 in. (215 mm)

• Height: 3.61 in. (93mm)

• Weight: approximately 2 lb (1 kg)

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 67

Page 56 of 136 Chapter 7 — Meridian Modular Telephones

Figure 6 M2008 modular telephone

Filler plate

Brandline insert

Switchook

Rls ke

Hold Ke

Volume control

Speaker

Message Waiting lamp

Function keys and LCDs

Prime DN

553-1851

Dimensions:

• Length: 8.42 in. (215 mm)

• Width: 8.42 in. (215 mm)

• Height: 3.61 in. (93 mm)

• Weight: approximately 2 lb (1 kg)

553-3121-100 Standard 2.0 September 1998

Page 68

Chapter 7 — Meridian Modular Telephones Page 57 of 136

(

)

Figure 7 M2016S and M2616 modular telephones

Filler plate

Brandline ins ert

Switchook

Rls ke

Hold ke

Volume control

Dimensions:

• Length: 9.75 in. (250 mm)

• Width: 9.45 in. (235 mm)

553-1852

Speaker

Message Wa iting lamp

16 Function keys with 8 LCDs

Microphone

2616

Prime DN

• Height: 3.64 in. (93 mm)

• Weight: approximately 2 lb (1 kg)

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 69

Page 58 of 136 Chapter 7 — Meridian Modular Telephones

Figure 8 M2216ACD-1 and -2 modular telephones

Rls ke

Hold ke

Volume control

Displa

Brandline insert

Speaker

Message Waiting lamp

Function keys and LCDs

Prime DN

Dimensions:

• Length: 9.75 in. (250 mm)

• Width: 9.45 in. (235 mm)

• Height: 3.64 in. (93 mm)

• Weight: approximately 2 lb (1 kg)

553-3121-100 Standard 2.0 September 1998

553-1853

Page 70

Chapter 7 — Meridian Modular Telephones Page 59 of 136

M2216ACD-2 (left side)

Figure 9 M2216ACD-1 and -2 left side showing head set jacks

electret supe rvi sor headset jack

M2216ACD-1 (left side)

electret age nt headset jack

Physical charact eristic s

All of the Meridian Modular Telephones are equipped with:

• Hold key

• Release key

• Volume control

electret supervisor headset jack

carbon agent headset jack

553-5060

• Message Waiting lamp

•Speaker

Each modular telep hone also has a numb er of programmabl e key s with LCD indicators that can be assigned to any combination of direct ory numbers and features (only one DN for the M2006). The lower right-hand key (key 0) is reserved for the Primary DN.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 71

Page 60 of 136 Chapter 7 — Meridian Modular Telephones

When equipped with a Displ ay m odule or MPDA, key 07 is automaticall y assigned as the Program key and cannot be changed. Key 05 becomes the Program key on the M2006, if equipped with MPDA.

The M2006 is a single line telephone and accepts only one DN. The remaining five key/lamp pairs can be assigned any feature that is not considered a DN, such as Transfer, Call Forward, or Conference. Features that cannot be assigned are those that are consi d ered DNs: Vo ice Call and 2-way Hotline, for e xam ple. Attempting to assi gn more than one DN to the M2006 causes the telephone to disables itself and all LCDs light steadily. It will return to its normal operating state when service change removes all secondary DNs.

LCD indicators support 4 key/LCD states:

Function LCD state

idle off active on (steady) ringing flash (60 Hz) hold (or feature pending *) fa st flash (120Hz)

* An indicator fast flashes when you have presse d a feature key but have not completed the procedure necessary to acti vate the feature.

Volume control

One key with two toggle pos itions controls volume. Pressin g the right “volume up” or left “v olum e down” side of the key incrementally increases or decreases the volume for the tone or sound which is curr ently active. The volume settings are retained for subsequent calls until new volume adjustments are made. If the telephone is equi pped with a Display Module, volume can be adjusted at any time with the setting displayed on the screen (in Program mode).

Handset volumes can be configured to return to nom inal on a per call basis.

You can adjust the volume of the following tone s, while they are audible:

• ringing

• handsfree (M2616)

• handset/h eadset

553-3121-100 Standard 2.0 September 1998

Page 72

Chapter 7 — Meridian Modular Telephones Page 61 of 136

(

•buzz

• on-hook dialing

When the telephone is disconnected, all volume levels will return to default values upon reconnection.

When the telephone is operating on loop power alone, the highest (eighth) step in volume cannot be reached (as seen when using Displ ay in Pr ogram mode).

Messa

e Waiting lam

Each Meridian Modular Telephone has a red triangle in the upper right-hand corner that lights brightly to indica te a message is wait ing. This LED is the primary mess age waiting indicato r and lets you know a message is wait ing regardless of whether the telephone has a message waiting key/lamp pair. You must have Message Waiting CCOS configured.

If you do assign a message waiting key/lamp pair, there will be two indications of a message waiting:

• the red Message Waiting triangle lights, and

• the LCD associated with the Message Waiting key flashes.

You may assign an Autodial key that dia ls the message center (or voice mail system) to avoid the double indication, or h ave no key/lamp pai r as signed to the mess a g e center.

The Message Waitin g lamp is also used to indicate security of the M2016S. The red LED trian gle lig hts s teadi ly when th e phon e is not s ecure (h andset is off-hook, phone is ringing or any time the handset/piezo relays are connected) . The red LED triangle blinks when a message is waiting.

Handsfree

M2616 onl

Handsfree (if software assigned), allows the user to talk to another party without lifting the handset. Activate Handsfree by depressing the Handsfree/mute ke y (key 15, top left) or by selecting a DN without lif ting the handset. Once Handsfree is activated, it can be deactiva ted by picking up the handset or by ending the call using the Release (Rls) key. If Handsfree is not software assigned, you can assign any other feature to key 15.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 73

Page 62 of 136 Chapter 7 — Meridian Modular Telephones

When the Handsfree/mute key is pres sed during a Handsfree call, the microphone is deactivated while the speaker remains active, preventing the other party from overhearing local conversations. The Handsfree LCD indicator fla shes while the microphone is muted. Pressing the Handsfree/mute key agai n rea ctivates the microphone and the Handsfree LCD lights stea dily.

Features and options matrix

Table 26 lists the distinctive characteristics of each Meridian Modular Telephone and show s th e optional hardware that you ca n add to e ach.

T able 26 Hardware features and options

M2006 M2008 M2016S M2616 M2216ACD-1 M2216ACD-2

Programmable keys

Handsfree microphone

Optional hardware available:

Display Key Expansion

Module Programmable

Data Adapter External

alerter interface

Brandline insert

Note:

In this table, x in dicates available feat ures for the set type listed along the top row.

6 8 16 16 16 16

standard

x x x standard standard

x x x x

x x x x x x

x x x x x

x x x x x x

553-3121-100 Standard 2.0 September 1998

Page 74

Chapter 7 — Meridian Modular Telephones Page 63 of 136

play

Note: If the set is equipped with a Display or Meridian Programmab le Data Adapter, the number of programmable keys is reduced by one, as key 07 (key 05 on M2006) automatically becomes the Program key.

Optional equipment

The modular desi gn of the digital teleph ones described in this document makes adding hardware options easy (see Figure10 list of hardware you ca n add to Meridian Modular Telepho nes.

on page 66). Below is a

Dis

A two line by 24 character Display Module provides system prompts, feedback on active features and valuable calling party information. In addition, you can modify various set features such as volume and screen contrast us ing the Program key (top right function key). You can en able a Call Timer which times calls made or received on the prime DN.

The Display Module requires a Power Supply Board on M2008 (see “Power

requirements” on page 70).

There are two types of Display Module available:

• North American Display—supports normal business features in two

• Special Applications Display—supports the following features :

A Special Appli catio ns Dis play Modul e comes as sta ndard equ ipmen t on the M2216ACD telephones. M2008 or M2616 telephones used as ACD telephones require the Special Applic ations Display.

Module

languages, English and Quebec French.

— Automatic Call Distribution (ACD) — six languages (English, Quebec French, Parisian French, German,

Spanish, Du tch)

Note: It is possible to adjust the Display screen contrast so that it is too light or too dark to rea d. If you cannot read the Display, disconnect and then reconnect the lin e cor d to return to the default settings.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 75

Page 64 of 136 Chapter 7 — Meridian Modular Telephones

Meridia n Programmable Data Adapter

The Meridian Programmable Data Adapter (MPDA) mounts within the telephone (see Figure 11

on page 67) and allows asynchrono us ASCII terminals, personal computers and print ers to be connected to the telephone using an RS-232-D (sub mi niature) interface. The MPDA has multilingual capability. It requires additional power (see “Power requirements” on page 70

For more information, see “Meridian Programmable Data Adapter” on

page 77.

Pro

ram ke

The Program k ey is aut omat icall y as signed to Meri dian Mod ula r Telepho nes with Display or MPDA added . It al lows you to change a variety of display features such as screen form at, contr ast an d languag e. It al so lets yo u change data parameters such as transmission speed and parity.

The upper right-ha nd key (key 05 on M2006, key 07 on all others) automatically becomes the Program key when Display or MPDA is configured wit h the te le phone. The Progra m key is l ocal t o the set and shows blank when you print key assignments in LD20.

External Alerter Inte rface

The External Alerter Board provides an interface to standard remote ringing devices, such as a ringing unit installed in a location separate from the telephone. The External Alerter Interface is not the remote ringer itself, but provides acces s to standard, off-the-sh elf remote ringi ng devices. The Alerter Board requires additional power (see “Power requiremen ts ” on page 70

You can program the External Alerter Interface to activate a ri nger (or light) when the telephone rings or when the telephone is in use (off-hook).

Expansion Module

A modular 22 key unit can be attached to any 16 key Meridian Modular Telephone. The extra keys can be assigned to any combination of lines and features. You can add up to two expansion module s to a single telephone. You will need a se parate fo otstand for the modul e(s), one fo r a sing le m odule, one for a double. The expansion module requires additional power (see “Power

requirements” on page 70).

553-3121-100 Standard 2.0 September 1998

Page 76

Chapter 7 — Meridian Modular Telephones Page 65 of 136

The Key Expa nsion Mod ule c onne cts t o the tel ephone t hrough a r ibbo n cab le running from the base of the telephone. It is physi ca lly connected to the telephone by the footstand.

Brandline Insert

The filler plate on the telephone or Display Module contains a removable insert design ed to accommodate custom labeling. You can order blank Brandline Inserts and have a printer sil k screen your comp any logo on them. Brandline Ins erts snap easily into and out of the filler plate.

Headset

The M2216 A CD t elephones are compatible with three electret headsets:

• Plantronics Polaris

• GN Netcom Profile

• NT Liberat i on

The M2216ACD-2 agent jack is compatible with any standard carbon headset.

The headse t interface o f the M2216ACD-1 is adjustable to allow you to tune the electrical characteristics to optimize performance, while the M2216ACD-2 headset interface is fixed.

Any recording devic e connected to the receive pa th of a Meri dian Modular Telephone must meet these requirements:

• load impedance at le ast 8K ohms across the audio band

• connect in parallel across pins 3 and 4 of the handset/headset jack

• isolate power source from the headset/handset jack

M2006/M2008/M2616

You can use an electre t headset in the handset port of the M2006, M2008 or M2616 telephone . Choose an amplified headset that draws power from a battery or AC transf orm er (power is not provided by the tele phone). The amplifier must draw less than 400 micro amps from the telephone jack .

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 77

Page 66 of 136 Chapter 7 — Meridian Modular Telephones

The headset should be designed to work with a telephone jack with these characteristics:

Transmit interface: +5 V through 10K DC bias resistanc e with maximum current of 500 micro amps. The differential input impedance is 10K ohms. Connects to pi ns 2 and 5 of the handset jack.

Receive interface: single ended output with output impedance of 180 ohms. Connects to pi ns 3 and 4 of the handset jack.

Figure 10 M2616 with Display Module and Key Expans ion Module

553-3121-100 Standard 2.0 September 1998

553-1857

Page 78

Chapter 7 — Meridian Modular Telephones Page 67 of 136

Figure 11 Back of telephone showing Meridian Programmable Data Adapter

Flashing

LED

RS232

inte r f ace

553-1897

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 79

Page 68 of 136 Chapter 7 — Meridian Modular Telephones

Specifications

The following specifications govern the performance of the Meridian Modular Telephones under the environmental conditions described.

Environmental and safety considerations

All digital telephones and their associated opti ons meet the requirements of Electroni c Industries Association (EIA) specification PN-1361.

Tem

erature and humidit

Operating state:

• Temperature range:

0° to 50° C (32° to 104° F)

• Relative humidity:

5% to 95% (non-condensing). At temperatures above 34°C (93°F) relative humidity is limited to 53 mbar of water vapor pressure.

Electroma

The radiated and conducted electromagn etic interference meets the requirements of Subpart J of Part 15 of the F CC rules for class A computing devices.

Line engineering

The maximum permissible loop length is 3500 ft. (915 m), assuming 24 AWG (0.5 mm) standard twisted wire with no bridge taps . A 15.5 dB l oss at 256 KHz defines the loop length limit (longer lengths are possible, depending on the wire's gauge and insulati on).

The Meridian Modular Telephones use a 6 conductor line cord (A0346862).

Note: Use only th e line cord provided with the Meridian Modular Telephone. Using a cord designed for other digit al telephones could result in d am age to the cord.

Figure 12

Telephone, MPDA an d DLC in t he Meridia n 1 Option 11C C ompact s yste m.

shows a simplified block diagram of the Meridian Modular

netic interference

553-3121-100 Standard 2.0 September 1998

Page 80

Chapter 7 — Meridian Modular Telephones Page 69 of 136

Figure 12 Block diagram of MPDA and Meridian Modul ar Telephone

Local alerting tones

Each telephone pr ovides four alerting to nes and a buzz sound. The system controls t he ringing cadence by sending t one-ON and tone-OFF messages to the telephone. The alerting tone cadences cannot be changed from the telephone, but ca n be altered for indi vidual Merid ian Modular Tele phones by software controlled adjustments.

Alertin

The tone frequency combinations are given in Table 27

tone characteristics

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 81

Page 70 of 136 Chapter 7 — Meridian Modular Telephones

T able 27 Tone Characteristics

Tone Frequencies Warble Rate (Hz)

1 667 Hz, 500 Hz 10.4 2 667 Hz, 500 Hz 2.6

M2006 and M2008

3 1600 Hz, 2000 Hz 10.4 4 1600 Hz, 2000 Hz 2.6

M2016S, M2616 and M2216ACD

3 333 Hz, 250 H 10.4 4 333 Hz, 250 Hz 2.6

A 500 Hz buzz signal is provided for incoming call notifi ca tion while the receiver is off-hook.

Power requirements

The M2006, M20 08, M2616 (basic configuration and with Display Module) and M2216ACD-1 are loop powered. Loop power consists of a -30 V AC power source and assumes a 3500 ft. (915 m) maximum loop length of 24 AWG wire and a minimum 15.5 V AC at the telephone terminals.

Note: The loop length limit is defined by a 15.5 dB loss at 256 KHz.

The Handsfree feature, which is integrated into the M2616, requires no additional power.

Some configurations of telephones and opt ions need more than basic loop power to operate. Tab le 28 when additiona l power is needed to operate the tel ephone or its optional hardware. Power Supply Boards come installed in factory-assembled configurations which require additional power.

553-3121-100 Standard 2.0 September 1998

lists the Meri dian Modular Telephones and shows

Page 82

T able 28 Power requirements

Chapter 7 — Meridian Modular Telephones Page 71 of 136

If a power failure occurs, configurations which require loop power only continue to work if the Meridian 1 Option 11C Compact is equipped with a backup commercial power source such as an Uninterruptible Power Supply (UPS). Only those options which require additional power will cease to function.

During a power failure , the carbon agent headset on th e M2216ACD-2 will fail and the electre t su pe r v is o r's jack can be u s ed as an ag en t jac k. If no headset was pl ugged in to the e lectret jack at this ti me, the call is dropped, the agent logged off and must log in again once the el ectret heads et is plu gged in. When power is restored, the car bon jack returns automatically.

Telephone type Loop power

M2006 Basic configuration Any option M2008 Basic configuration Any option M2016S No All configurations M2616 Basic configuration (with

Handsfree) and Display

M2216ACD-1 Basic configurati on (with Display) Any option M2216ACD-2 No All configurations

Additional power (Power Supply Board)

Programmable Data Adapter Key Expansion Module External alerter interface

Power Supply Board

The power supply option consists of a Power Supply Boar d which mounts inside the tele phone, coupled with an external wall-mount transformer or closet power supply which provides power to the Power Supply Board. The Power Supply Board re ceive s its powe r thr ough pi ns 1 and 6 of t he l ine cord.

The Power Supply Board connects to t h e telephone through a 14 pin bottom entry connector.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 83

Page 72 of 136 Chapter 7 — Meridian Modular Telephones

plug

The Power Supply Board comes factory installed wit h any configuration of the M2016S and M2216ACD-2. The M2006 and M2008 require the Power Supply Board wi th the addit ion of any optio n. The M2616 re quires the P ower Supply Board with any option except the Display Module.

Local

-in transformer

A single winding transf orm er equipped with a 10 ft. (3 m) cord of 22 AWG two-conductor stranded and twisted wire with a modular RJ-11 duplex adapter (Refer to Figure13

on page 74 ) can provide the additional power

needed to opera te the telephone and its options.

CAUTION

Do not plug any equipment (c omp uter, modem, LAN card) other than the Meridian Modular Telephone into the RJ-11 transform er adapter, as damage to equipment may result.

120 V transformer (AO367335 or equiva lent)

The following minim u m specifications mu st be met by this transfor me r:

• Input volta ge

120 V AC / 60 Hz

• No load output voltage

29 V AC maximum

• Voltage at rated cu rrent

26.7 V AC minimum

• Rated load current

700 mA

240 V transformer (AO367914 or equiva lent)

The following minimum specifications have to be met by this transformer:

• Input volta ge

240 V AC / 50 Hz

• No load output voltage

29 V AC maximum

553-3121-100 Standard 2.0 September 1998

Page 84

Chapter 7 — Meridian Modular Telephones Page 73 of 136

• Voltage at rated current

26.7 V AC minimum

• Rated load current 700 mA

Note: You cannot wall mount the telephone over the wall jack when using a tran sformer, due to th e siz e of the RJ-11 a dapter. Mount it abo ve or to the side of the jack and run the line and power cords to it.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 85

Page 74 of 136 Chapter 7 — Meridian Modular Telephones

Figure 13 Configurati on of local plug-in transformer

553-3121-100 Standard 2.0 September 1998

Page 86

Chapter 7 — Meridian Modular Telephones Page 75 of 136

Closet power suppl

Closet power can be obtai ned from an AC transformer for loops of 100 ft. (30 m) or less, or a DC transformer for loop leng ths of 650 ft. (197 m) or less. An equivalent powe r source can be used but must maintain is olation of outputs to th e terminal. (Ref er to Figure 14

on page 76).

CAUTION

When using closet power, do not plug the TELADAPT connector into any equipment (c ompute r , mo dem, LAN card) oth er th an the Me ridian Modular Telephone , as damage to equipment may result.

All termin als must be isolat ed fro m the input win ding and ea ch termin al must be isolated from all other terminal windings. A separate winding is require d for each terminal , and grounds should not be connected.

Note: The QUT1 closet power supply source is not compatible with Meridian Modular Telephones.

The AC source shoul d be rat ed at 29 V AC, 7 00 mA is olate d. The DC s ource should be rated at 42 V DC, 300 mA isolat ed, with cu rrent lim iting output of 1 amp.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 87

Page 76 of 136 Chapter 7 — Meridian Modular Telephones

Figure 14 Closet power supply configuration

553-3121-100 Standard 2.0 September 1998

Page 88

Chapter 7 — Meridian Modular Telephones Page 77 of 136

Meridian Programmable Data Adapter

When a Meridian Modular Telephone is equipped with the Meridian Programmable Data Adapter (MPDA), you can make a data call using keyboard diali ng from your attached terminal. You can carry on voice and data communi cation simultan eously without causing any mutua l interference.

The MPDA communicates with Dat a Terminal Equipment (DTE) having characterist ics as shown in Table 29:

T able 29 MPDA data characteristics

Data type ASCII

Synchronization Asynchronous, Start-Stop Number of Bits 8 bits Parity none (unchecked) Data rate 110, 150, 300, 1200, 2400, 4800,

9600, 19200 bits per second (autobaud)

Stop bits 2 bits for 110 bits per second;

1 bit for all other speeds

Transmission Full duplex

Note: The MPDA configuration of data parameters is stored locally (although you can set the configuration in the Meridian 1 Option 11C Compact system). You ca nnot set the data paramet ers in the system before installing the MPDA in the telephone (the configuration information will be lost).

The keyboard dialing routine may vary with the data equipment being used and reference to the use r's data terminal manual may be necessary. For more detailed in format ion, see Meridi an Programmable Dat a Adapter User Guide (PO705986).

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 89

Page 78 of 136 Chapter 7 — Meridian Modular Telephones

The MPDA can establish either data cal ls o r v oice calls. You can make data calls using keyboard dialing, keypad dialing or the AT command dialing feature. The AT dialing features lets you originate data calls to local and remote Data Terminal Equip ment (DTE) directly from a data ter minal keyboard or personal computer. You can make voice calls using AT dialing from your terminal.

Users of person al compute rs al ready e quip ped with a Hayes Smar tmodem or users who have a stand-alone Hayes Smartmodem can substitute the MPDA for data integration. The Hayes dialing feature, when used with third party communication software and the digital telephone, will support most of the Hayes Smartmodem features. Third party terminal emulation packages can also be used with Hayes dialing.

New features supported by the MPDA include:

• enhanced Hayes commands, including upper- and lower case dialing, voice call origination through AT dialing, hang up data call, a nd on-line disconnect of voice call

• script file capabilities allow you to program multiple data resources for automatic resource access

• Vo ic e Call O ri g in atio n ( V C O )

553-3121-100 Standard 2.0 September 1998

Page 90

Page 79 of 136

Chapter 8 — M2250 Attendant Console

Introduction

The M2250 Attendan t Console is to assist i n placing and extending calls in and out of the Meridian 1 Option 11C Compact system. It is opera ted by an attendant as the human interface between the system and the use rs.

This chapter describes the M2250 attendant console. The M2250 is driven and powered by a digit al line card.

Description

Features

The M2250 has the following features:

• A four-line, 40 c harac ter, l iquid c rys tal displ ay (LCD) wit h back lig hting and adjustable viewing angle. Power, including backlighting, is maintained during building power failu r es through the system battery backup, if equipped.

• In shift mode, the M2250 can have up to 20 TGB keys.

• Up to 10 extra flexibl e fea ture keys (total of 20) in shift mode

• An optional supporting stand that can be adjusted to nine different positions.

• A handset and headset volume adjustment slider control, situated below the dial pad.

• A physical c onnection to a s erial data port throug h a submin iature D-t ype female connector on the console back wall. This pe rmits connection of the console to the serial port of a personal computer.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 91

Page 80 of 136 Chapter 8 — M2250 Attendant Console

• An optional Busy Lamp Fi eld/Console Graphics Module (BLF/CGM), which displays the st atus of up to 150 conse cut ive ext ensions (SBLF) or any group of 100 extensions within the system (EBLF), and has many text and graphics capabilities.

• The M2250 provides f or transmission level adjustment to meet international requirements by accepting and processing downloaded information from the system (when this messaging is supported in software). The transm ission level can be adjusted to one of 16 different levels.

• Angle adjust ment of the display screen, which can be tilted through 90° from horizontal to fully vertical

• Scrolling control of lines 2 and 3 of the display sc reen

• Multi-langua ge s election

• Menus for local console features (options menu) and diagnostics (diagnostics menu)

• Code-blue or emergency relay (associated with ICI 0)

• Time and date system download

• Alert tone volume and frequency selection

• Electret or carbon transmitter support

• Power Fail Transfer switch

•Keyclick

Figure 1 5

on page 82 shows the top view of the layout of the attendant console with the user-accessibl e components labeled us ing a row/column grid arrangement.

Figure 16

on page 88 shows rear, left-hand side, and bottom views of the console. These illustrations show where to find the various components as you read th i s ch ap t er .

553-3121-100 Standard 2.0 September 1998

Page 92

Physical details

The attendant console dimensio ns are as follows:

• Width

16.75 in. (425 mm)

•

Depth

9.5 in. (245 mm)

•

Height (front) 1 in. (25 mm)

•

Height (back)

2.5 in. (65 mm)

• Height (with display screen panel up)

4.5 in. (115 mm)

• Weight approximately 6 lb (2.75 kg)

Chapter 8 — M2250 Attendant Console Page 81 of 136

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 93

Page 82 of 136 Chapter 8 — M2250 Attendant Console

Figure 15 M2250 attendant console—top view

553-3121-100 Standard 2.0 September 1998

Page 94

Keyboard layout

Refer to Figure 15 on page 82 and Table 30 on page 84 for the location of keys and switches.

Chapter 8 — M2250 Attendant Console Page 83 of 136

Function ke

There are eight function ke ys on the atte ndant cons ole, loc ated directl y below the display sc ree n. Refer to Table 30 and markings of these keys.

on page 84 for the positions, fu nctions,

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 95

Page 84 of 136 Chapter 8 — M2250 Attendant Console

T able 30 Function key definiti ons and functions

Key number

(as shown in

Figure 15

)

Key Function of key

Centralized Att endant Service (CAS) or History Feature key

(1)

Note:

Meridian 1 Option 11C Compact.

Prime function: Position Busy f eature

The History feature is not available with

(2)

(3)

(4)

Level 1 functi on (nor m al): Night Service feature

Function key 1 (F1) Prime functi on (normal):

Selects display screen line 2 for scrolling. Level 1 functi on (Shi ft):

Selects the Options menu on the display screen.

Function key 2 (F2) Prime functi on (normal):

Scrolls the currently selected line to the left Level 1 functi on (Shi ft):

Decreases the alert speaker volume.

553-3121-100 Standard 2.0 September 1998

Page 96

Key number

(as shown in

Figure 15

)

(5)

Chapter 8 — M2250 Attendant Console Page 85 of 136

Key Function of key

Function key 3 (F3) Prime functi on (normal):

Scrolls the currently selected line to the right Level 1 functi on (Shi ft):

Increases the al ert speaker volume .

Refer al s o to Table 1

page 14

Function key 4 (F4)

Prime functi on (normal): Selects display screen line 3 for scrolling.

(6)

(7)

(8)

Note:

Keys are numbered for id entification purpos es from 1 to 8 (left to right).

Level 1 functi on (Shi ft): Selects th e Diagnos tics menu on t he displ ay screen (On the M2250 console, the Diagnostics menu is password-protected. The user must firs t ent er a 4-digit password and press * before the Diagnostics menu is displayed)

Prime functi on (normal): Signal Source fe atur e key

Level 1 functi on (Shi ft): Used with the Busy Lamp Field/Console Graphics Module, as CGM key.

Prime functio n (normal): Signal Destination feature key

Level 1 function (Shift): Used with the Busy Lamp Field/Console Graphics Module, as the Mode key.

page 13 and 2

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 97

Page 86 of 136 Chapter 8 — M2250 Attendant Console

Switches

A slider switch, located in the bottom row of keys, between columns DI/EI and FI (see Figure 15 volume leve l.

The Power Fail Transfer (P FT) switch is located in the baseplate. Both the line connector and the RS-232 connector for the PC port are located at the back of the attendant console.

Shift ke

The shift key, me ntioned earlier, is positioned in column FK, row 1, just above the Hold key. It is used to access Level 1 mode functions.

on page 82), controls the handse t and he adset receive

Handset and headset

Two jack-pairs ar e provided for plugging in handsets or headsets. The jacks are locat ed on both sides of the console beneath the face plate in the re ce ssed area shown by the arrows. The conso le a cc epts both carbon and electret headsets and automatically adapt s itself to each type.

Note: Electre t hea ds ets and handsets are polarity sensitive and must be correctly inserte d into the jack.

LCD indicat ors

The LCD indicators used on the M2250 are half-diamond shape d symbols which normally point towards the key with which they are associated, except in the QMT2 mode of o perati on a nd the l oop keys where t here ar e t wo LCDs associ at ed wi t h ea ch key .

Every LCD can flash at 30, 60, and 120 impulses per minute (ipm) .

Display screen mes sage s

The following messages may appear on the display screen:

• Source and destination information (line 2 and line 3 respectively)

• MN ( minor alar m)

• MJ (major alarm )

acks

553-3121-100 Standard 2.0 September 1998

Page 98

Chapter 8 — M2250 Attendant Console Page 87 of 136

• C/H(CAS/History File)

• CW (Call Waiting)

• BUSY (Po sition Busy )

• NIGHT(Night Service)

•IDLE(Idle)

• ACTIVE(lpk has been selecte d)

• S (Shift mode)

The first four status me ssages appear as MN, MJ, C/H, and CW on line 4 of the displ ay screen panel. BUS Y and NIGHT are combined with the status of the Release la mp to indicate the cons ole status as shown in Table 31.

T able 31 Release lamp indicator status

Display screen stat us

QCW-type

Night Busy Re lease

ON X X NIGHT OFF ON X BUSY OFF OFF ON IDLE OFF OFF OFF ACTIVE X X X EMERGENCY

Indicator Status

(line 4)

If the emergency power fail transfer feature is activated, the console status will be displayed as EMERGENCY.

Meridian 1 Option 11C Compact Technical Refer ence Guide

Page 99

Page 88 of 136 Chapter 8 — M2250 Attendant Console

)

(

)

(

)

Figure 16 M2250 attendant console—rear, left side, and bottom views

Display Panel (can be tilted upwards

Handset/Headset Jacks

........

.......

Protective plastic cover to be installed when

.......

25-pin subminiature D-type male con nector for cable connecting console to distributing frame

connector is not in use

RS-232 female connector for connection to PC with Monitor

Data Port

Rear View

Handset/Headset Jacks

Handset/Headset jacks

same on opposite side

Backlighting ON/OFF Slider Switch

Left Side View

Front Edge of Console

Backlighting Slider Switch

Off

Handset/Headset Jacks

Adjustable standscrew mounting point (total of 4)

Knockout for access to J4 connector

Bottom View

553-3121-100 Standard 2.0 September 1998

Power Fail Transfer Switch (PFT)

RS-232 female connector

pe male connector

25-pin D-t

553-2045

Page 100

Chapter 8 — M2250 Attendant Console Page 89 of 136

Connectio ns

The line cord connects to the rear of the attenda nt console through a 25-pin subminiature D-type connector. The jack connector is attached to the line cord for user sa fety and equ ipment protec tion (pi ns are not expo sed). Having the plug connector mo unted in the console also prevents interchanges between the line cord and the se rial data port con nec tors (the serial data port in the console has a jack connector).

A two-prong G3 type conn ector is pr ovided on both s ides of the co nsole body to permit handse t or hea dset connection at either side of the console. The attendant console is compatible with both carbon and elec tret handsets. The electret hands et plug is orientation-dependent and is labeled accordingly.

The M2250 attendant console is connected to the system through two TNs (primary and secondary) with two additional TNs for powerin g. Two additional units may be used for long line loop powering.

The M2250 console requires a Digital Line Card (DLC).

Local console controls

The displ ay screen c ontrast o n the att endant con sole can be adjuste d using th e Contrast option on the Options menu.

The pitch a nd volume of the buzz tone on the console can be adjusted by the user.

You can choose any one of eight la nguages (English, Fre nch, Spanish, German, Italian, Norwegian, Gaelic, or Turkish) for the console screen displays.

The attendant console is equipped with a real time clock/ca lendar. The time of day (hour s, minutes, and seconds) and the date (day, month, and year) are displayed on line 1 of the display screen.

The user can t urn the sound of ke y click on o r off. On the M2250, the u ser can adjust the pitch and volume of the key click.

Meridian 1 Option 11C Compact Technical Refer ence Guide