NEC NDA-24300 User Manual

NDA-24300

ISSUE 1

STOCK # 200787

®

System Operations and Maintenance Manual

OCTOBER, 2000

NEC America, Inc.

LIABILITY DISCLAIMER

NEC America, Inc. reserves the right to change the specifications,
functions, or features, at any time, without notice.

NEC America, Inc. has prepared this document for use by its
employees and custome rs. The information contained herein is
the property of NEC America, Inc. and shall not be reproduced
without prior written approval from NEC America, Inc.

NEAX and D

term

are registered trademarks of NEC Corporation.

Copyright 2000

NEC America, Inc.

Printed in U.S.A.

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NDA-24300

ISSUE 1

OCTOBER, 2000

NEAX2400 IPX

System Operations and Maintenance Manual

TABLE OF CONTENTS

Page

LIST OF FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

CHAPTER 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. HOW TO FOLLOW THIS MANUAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

CHAPTER 2 SYSTEM MAINTENANCE OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Administrative Management Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Summary of This Manual’s Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. BASIC KNOWLEDGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Line Equipment Numbers (LENS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.1 Module Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.2 Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.3 Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2.4 Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3 Local Partition (LP) Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.4 System Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.5 Fault Detecting Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.6 Range of Faults Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.7 Explanation of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3. HOW TO READ PRECAUTIONS, DIAGNOSTIC, AND FAULT REPAIR INFORMATION . . . . . . . . . 26

3.1 Precaution about Diagnostic Procedure/Fault Repair Procedure. . . . . . . . . . . . . . . . . . . . . . . . 26

3.2 How to Follow Diagnostic Procedure/Fault Repair Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4. REPORTING FAULT TO NEC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.1 Fault Reporting Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.2 Forwarding Faulty Circuit Card Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

CHAPTER 3 SYSTEM MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

0-C Reset Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

0-D CPU Clock Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

0-E C-Level Infinite Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

0-F Memory Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

0-G B1-Level Infinite Loop (Permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

0-H B1-Level Infinite Loop (Temporary) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

NDA-24300 TABLE OF CONTENTS

Page i

Issue 1

TABLE OF CONTENTS (CONTINUED)

Page

0-I Mate CPU Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

0-J Abnormal Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

1-A Both TSW Failure (Permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

1-B TSW Failure (Permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1-C Both TSW Write Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

1-D TSW Write Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

1-E Both TSW Clock Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

1-F TSW Clock Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

1-O Both PLO Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

1-P PLO Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

1-S Module Group Down Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

1-T TSW ACT Change Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

1-U DLKC Data Transfer Failure (Permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

1-V DLKC Data Transfer Failure (Temporary) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

1-W PLO Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

3-B C-Level Infinite Loop (Permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

3-C C-Level Infinite Loop (Temporary) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

3-D Lock-Up Failure (Permanent). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

3-E Lock-Up Failure (Temporary). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

3-F -48V Over Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

3-G Ground Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

3-H Digital Line Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

3-I Digital Line Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

3-J Digital Line Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

4-C Both TSW Ready Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

4-D TSW Ready Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

4-Q DLKC Ready Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

4-S MUX Ready Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

4-T Both MUX Ready Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

4-U PCI Card Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

4-V PCI Card Failure Recovered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

6-A System Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6-B RGU & Howler Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

6-C Line Load Control Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

6-D Line Load Control Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

6-H Bad Call Notification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6-I STA-Test Connection Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

6-J Emergency Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

6-L Emergency Control Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

6-M Emergency Control Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

6-N Abnormal Call Duration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

6-O SMDR Output Buffer Overflow Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

6-P SMDR Output Buffer Overflow Release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

7-A System Initialize With Data Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

7-B System Initialize. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

7-C CPU MBR Key Turn ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

7-D CPU MBR Key Turn OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

7-E TSW MBR Key Turn ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

7-F TSW MBR Key Turn OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

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7-G TSW PLO Key Turn ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

7-H TSW PLO Key Turn OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

7-I ALMC MB Key Turn ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

7-J ALMC MB Key Turn OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

7-K PM MB Key Turn ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

7-L PM MB Key Turn OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

7-M NCU MB Key Turn ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

7-N NCU MB Key Turn OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

7-O Cyclic Diagnosis Normal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

7-P Cyclic Diagnosis Information (Error Detected). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

7-U PLO MB Key Turn ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

7-V PLO MB Key Turn OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

13-A CCH Clock Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

13-B CCH C-Level Infinite Loop Failure (Permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

13-C CCH C-Level Infinite Loop Failure (Temporary). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

13-D CCH Lock-Up Failure (Permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

13-E CCH Lock-Up Failure (Temporary) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

13-F CCH B-Level Infinite Loop Failure (Permanent). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

13-G CCH B-Level Infinite Loop Failure (Temporary). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

13-H CCS Link Failure (Permanent). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

13-I CCS Link Failure (Temporary). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

13-J Restoration From CCS Link Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

13-K CCH Reset Interrupt Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

13-N Digital Line Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

13-O Digital Line Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

13-P Digital Line Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

13-Q DRU Battery Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

13-R DRU Line Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

13-Z Power Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

15-A VPS Failure (Temporary). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

15-B VPS Failure (Permanent). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

15-C VPS Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

16-A Inside Trunk All Busy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

16-B Virtual Tie Line Set Report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

16-C Virtual Tie Line Cancel Report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

16-E Virtual Tie Line Set Time Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

16-F Sender Start Time Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

16-K I/O Port Line OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

16-L I/O Port Line Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

16-M Hard Clock Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

16-N Hard Clock Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

16-T IOC Failure (Temporary) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

16-U IOC Failure (Permanent) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

16-X Station Exchanged Report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

17-A CCH MBR Key Turn ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

17-B CCH MBR Key Turn OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

17-C CCH MB Key Turn ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

17-D CCH MB Key Turn OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

17-H Day/Night Change Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

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17-O IOC MB Key Turn ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

17-P IOC MB Key Turn OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

17-Q IOC MBR Key Turn ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

17-R IOC MBR Key Turn OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

23-P DCH Back-Up Automatic Change Start/End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

23-Q DCH Back-Up Manual Change Start/End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

23-Y MUX Clock Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

23-Z Both MUX Clock Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

26-N MAT Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

26-R Call Trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

26-V LAN Interface Error Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

26-W LAN Interface Release Report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

33-A MUX Clock Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

33-B SDT Alarm Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

33-C SDT Alarm Trouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

33-D SDT Alarm Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

33-E SDT Interface Change Notify. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

CHAPTER 4 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

1. LPM ACCOMMODATING UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE . . . . . . . . . . . . . . 239

1.1 Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

1.2 Circuit Card Mounting Face Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

1.3 Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

1.3.1 CPR Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

1.3.2 EMA Card Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

1.3.3 IOC Card Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

1.3.4 Power Supply Unit Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

1.3.5 MISC Card Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

2. TSWM ACCOMMODATING CIRCUIT CARD REPLACEMENT PROCEDURE . . . . . . . . . . . . . . . . . 266

2.1 Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

2.2 Circuit Card Mounting Face Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

2.3 Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

2.3.1 GT Card Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268

2.3.2 TSW Card Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272

2.3.3 DLKC Card Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

2.3.4 PLO Card Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

2.3.5 PWR SW Card Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

2.3.6 MISC Card Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

3. PIM ACCOMMODATING CIRCUIT CARD REPLACEMENT PROCEDURE . . . . . . . . . . . . . . . . . . . 283

3.1 Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

3.2 Circuit Card Mounting Face Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

3.3 Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284

3.3.1 LC/TRK Circuit Card Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

3.3.2 MUX Card Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286

3.3.3 SDT Card Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

3.3.4 PWR Card Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

4. FAN UNIT REPLACEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296

5. CPR COOLING FAN REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

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6. FUSE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

CHAPTER 5 FAULT REPAIR PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

1. LINE FAULT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

1.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

1.2 Line Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

1.3 Line Fault - When Dial Tone (DT) Cannot Be Heard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

1.4 Line Fault - When Dialing Results in Wrong Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

1.5 Line Fault - When Bell Does Not Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

1.6 When Call Cannot Be Answered and Speech Cannot Be Made . . . . . . . . . . . . . . . . . . . . . . . . 317

1.7 D

2. TRUNK FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

2.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

2.2 Trunk Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

2.3 Trunk (ORT, SND, CFT) Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

2.4 Trunk (COT, TLT, DTI) Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

3. ATTCON/DESKCON FAULT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

3.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

3.2 ATTCON/DESKCON Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

3.3 ATTCON/DESKCON Fault. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

4. UNIT FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

4.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

4.2 Unit Fault - Fault Related to Speech . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

4.3 Unit Fault - When Dial Tone (DT) Cannot Be Heard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

4.4 Unit Fault - ACT-Side MUX Card Is Faulty and System Has Changed Over. . . . . . . . . . . . . . . 344

5. SPEECH PATH (TSW) SYSTEM FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

5.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

5.2 Speech Path System Fault - Fault Related to Speech. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349

5.3 Speech Path System Fault - When Dial Tone (DT) Cannot Be Heard. . . . . . . . . . . . . . . . . . . . 353

5.4 Speech Path System Fault - STBY Side Has Become Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . 354

6. CONTROL SYSTEM FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

6.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

6.2 Control System Fault - Fault Occurs Intermittently. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

6.3 Control System Fault - STBY Side Is Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

7. ALARM INDICATION FAULT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

7.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

7.2 Fault of Alarm Indicating Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

7.3 Fault That Cannot Be Detected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

8. POWER SUPPLY FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

8.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

8.2 Fuse Blown Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

8.3 Circuit Breaker OFF Fault in PWR Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372

8.4 Fault of Alarm Lamps on PWR Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

9. FAN UNIT FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

9.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

9.2 Fan Unit Fault. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375

term

Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

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10. TONE FAULT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

10.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

10.2 Tone Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377

11. SYSTEM DOWN FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

11.1 When Cause for Fault Cannot Be Identified. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

11.2 When Faulty Circuit Cards Can Be Assumed From System Message . . . . . . . . . . . . . . . . . . . 382

12. COMMON CHANNEL INTEROFFICE SIGNALING (CCIS) LINE FAULT . . . . . . . . . . . . . . . . . . . . . . 383

12.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

12.2 CCIS Line Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

12.3 Specific CCH/CCT Card Is Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384

12.4 Fault of CCH, DTI and Related Flat Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

13. INTEGRATED SERVICE DIGITAL NETWORK (ISDN) LINE FAULT . . . . . . . . . . . . . . . . . . . . . . . . . 386

13.1 Check Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

13.2 ISDN Line Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

13.3 Specific DCH/PRT Card Is Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387

13.4 Fault of DCH, DTI, and Related Flat Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388

14. HARD TIME CLOCK FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389

CHAPTER 6 SYSTEM OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

1. ALARM INDICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

1.1 Kinds of Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

1.2 How to Stop Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

1.3 Alarm Indications on TOPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

1.4 Variable Alarm Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

2. COLLECTION OF SYSTEM MESSAGES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

2.1 Automatic Printout to System Message Dedicated Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

2.2 Display on MAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

3. INDICATION OF LOCKOUT STATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

3.1 Indicating Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

3.2 Recovery Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

4. LINE LOAD CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

5. IOC LINE MONITOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400

6. LINE MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401

6.1 Make-Busy/Make-Busy Cancel of Station and Data Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . 401

6.2 Class Change and Number Change of Station and Data Terminal . . . . . . . . . . . . . . . . . . . . . . 402

6.3 Make-Busy/Make-Busy Cancel of C.O. Line/Tie Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402

6.4 Line Management Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

7. STATION MESSAGE DETAIL RECORDING SYSTEM (SMDR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

7.1 Transmission Data to SMDR Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

7.2 Details on Transmission Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409

7.2.1 Calling Party Information/Called Party Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409

7.2.2 Call Start/Call End Time Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410

7.2.3 Called Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411

7.2.4 Account Code/Authorization Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412

7.2.5 Route Advance Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413

7.2.6 Condition B Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413

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7.2.7 Call Metering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414

7.2.8 Office Code of Calling (Called) Party and Billing Process Office . . . . . . . . . . . . . . . . . 414

7.2.9 Text Format of Centralized Billing - Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415

7.2.10 Text Format of SMDR - TCP/IP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423

8. TRAFFIC MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425

8.1 Kind of Traffic Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425

8.2 Operating Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

9. OFFICE DATA MANAGEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

9.1 Office Data Stored Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

9.2 Office Data Preservation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

9.3 Office Data Management Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434

9.4 Call Forwarding Data/Individual Speed Calling Data Management . . . . . . . . . . . . . . . . . . . . . . 437

9.5 One-Touch Speed Call Memory Data Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

9.6 Data Management Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

10. TEST OPERATIONS OF VARIOUS KINDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438

10.1 Designated Connection Test (Station) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439

10.2 Designated Connection Test (DESKCON/ATTCON). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449

10.3 Bad Call Notification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451

11. ROUTINE DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452

11.1 Related System Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452

11.2 Routine Diagnosis Result. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454

12. SYSTEM CONTROL PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455

12.1 Changeover/Make-Busy/Make-Busy Cancel of Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455

12.1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455

12.1.2 How to Control CPU Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461

12.1.3 Manual System Changeover of CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463

12.1.4 Forced Changeover of CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465

12.1.5 How to Control Switching Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 466

12.1.6 Manual System Changeover of Speech Path System . . . . . . . . . . . . . . . . . . . . . . . . . 467

12.1.7 Manual System Changeover of PLO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472

12.2 Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474

12.2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474

12.2.2 System Initialization by Turning ON Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . 475

12.2.3 System Initialization by Key Operations on TOPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476

12.2.4 System Initialization by Keys on CPU Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484

12.2.5 System Initialization by SINZ Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485

12.2.6 Peripheral Equipment Initialization (Line/Trunk Initialization) . . . . . . . . . . . . . . . . . . . . 486

12.3 How to Turn ON/OFF Whole System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487

12.3.1 How to Turn On Whole System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487

12.3.2 How to Turn OFF Whole System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488

12.4 System Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489

CHAPTER 7 ROUTINE MAINTENANCE PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495

1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495

1.1 Flow of Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495

1.2 Required Test Equipment and Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 496

2. ROUTINE MAINTENANCE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497

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2.1 Ambient Conditions in Switch Room Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 498

2.2 Alarm Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 499

2.3 MAT/Printer Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500

2.4 Collection of System Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 501

2.5 Display of Locked-out Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502

2.6 Fan Unit Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503

2.7 Alarm Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

2.8 Main Power System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 505

2.9 Trunk RGU Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506

2.10 ATTCON/DESKCON Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 507

2.11 System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 509

3. ROUTINE MAINTENANCE CHECK LISTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 510

CHAPTER 8 MAINTENANCE COMMANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 519

1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 519

ALLC Assignment of Line Load Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522

ALMG Assignment of Alarm Grade Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523

ATRF Assignment of Traffic Measurement Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524

ATRFN Assignment of Traffic Measurement Order for Fusion Network. . . . . . . . . . . . . . . . . . . . . 525

BOSD Back Up One-Touch Speed Call Memory Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 526

CADSD Continuous Assignment of Station Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527

CATK Continuous Assignment of Trunk Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530

CBCN Control of Broadcasting for NDM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537

CCSE Change of Common Signaling Channel Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 538

CDBU Change of Dch Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

CMOD Change of System Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 540

CMWL Control Message Waiting Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541

CMWL_T Control Message Waiting Lamps – Telephone Number . . . . . . . . . . . . . . . . . . . . . . . . . . 542

CPRS Controlled Alternate PRSCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 543

CSCL Continuous Change of Station Class. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544

CSTN Continuous Change of Station Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545

DCBD Display of Call Block Entry Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546

DCEN Display of Connection Trunk LENS Data for LDM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548

DCON Display of Connection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549

DFTD Display of System Message Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550

DISS Display of Program Issue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 551

DLEN Display of LENS Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .552

DLSL Display of Lockout Station - LENS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 554

DLSS Display of Lockout Station - Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 555

DLSS_T Display of Lock Out Station – Number – Telephone Number . . . . . . . . . . . . . . . . . . . . . . 556

DLTEL Display of Telephone Number from LENS for LDM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557

DNTEL Display of Telephone Number from LENS for NDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 558

DPKG Display of Setting Port Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559

DPSW Display Package Switch Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 560

DSTN Display of Station Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .561

DTELN Display of Telephone Number Data for NDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 562

DTF101 Display of Terminal Traffic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564

DTF102 Display of Route Traffic Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .565

DTF103 Display of Station Peg Count Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 566

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Page

DTF104 Display of Attendant Peg Count Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 567

DTF105 Display of Route Peg Count Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568

DTF201 Display of Service Peg Count Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569

DTF301 Display of UCD Route Peg Count Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 570

DTF302 Display of UCD Group Peg Count Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 571

DTF303 Display of Station Peg Count Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 572

DTF501 Display of Attendant Answering Peg Count Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573

DTF601 Display of Connection Route Peg Count Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 574

DTF602 Display of Connection Route Traffic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 575

DTF101N Display of Terminal Traffic Data for Fusion Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 576

DTF102N Display of Route Traffic Data for Fusion Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 577

DTF103N Display of Station Peg Count Data for Fusion Network. . . . . . . . . . . . . . . . . . . . . . . . . . . 578

DTF104N Display of Attendant Peg Count Data for Fusion Network. . . . . . . . . . . . . . . . . . . . . . . . . 579

DTF105N Display of Route Peg Count Data for Fusion Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . 580

DTF201N Display of Service Peg Count Data for Fusion Network . . . . . . . . . . . . . . . . . . . . . . . . . . 581

DTF301N Display of UCD Route Peg Count Data for Fusion Network . . . . . . . . . . . . . . . . . . . . . . . 582

DTF302N Display of UCD Group Peg Count Data for Fusion Network . . . . . . . . . . . . . . . . . . . . . . . 583

DTF303N Display of UCD Station Peg Count Data for Fusion Network . . . . . . . . . . . . . . . . . . . . . . 584

DTF501N Display of Attendant Answering Peg Count Data for Fusion Network. . . . . . . . . . . . . . . . 585

DTF601N Display of Connection Route Peg Count Data for Fusion Network . . . . . . . . . . . . . . . . . . 586

DTF602N Display of Connection Route Traffic Data for Fusion Network . . . . . . . . . . . . . . . . . . . . . 587

FLINST File Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 588

HDD_FDD Data Control Between HDD and FDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 589

HDD_MAT Data Control Between HDD and MAT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591

HDD_MAT_N Data Control Between HDD and MAT for NDM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 592

HDFP HDD Format of PBX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 593

MBCT Make Busy of Connection Trunk for LDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594

MBLE Make Busy of LENS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 595

MBPM Make Busy of Port Microprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 596

MBRT Make Busy of Route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .597

MBSM Make Busy of System Message Printout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 598

MBST Make Busy of Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .599

MBST_T Make Busy of Station – Telephone Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600

MBTC Make Busy of Trunk-Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 601

MBTK Make Busy of Trunk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .602

MEM_HDD Data Control Between Memory and HDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 603

MEM_HDD_N Data Control Between Memory and HDD for NDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 604

MFCH Make Busy of FCCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 605

PMBU Port Microprocessor Back Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 606

RALM Release Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 607

RALMN Release Alarm for NDM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608

RLST Release Station/Trunk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .609

RLST_T Release of Station/Trunk – Telephone Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610

SINZ System Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 612

SPTS Scanning of Port Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .613

SRTS Scanning of Route Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 618

XHFD X-RAY HD or FDD Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 619

NDA-24300 TABLE OF CONTENTS

Page ix

Issue 1

LIST OF FIGURES

Figure Title Page

Figure 2-1 Flow of Administrative Management Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figure 2-2 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2-3 Face Layout of IMG0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 2-4 Face Layout of IMG1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 2-5 Face Layout of IMG2/3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 2-6 LENS Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 2-7 Module Group Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 2-8 Unit Number Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 2-9 Group Number Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 2-10 Level Number Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 2-11 LP Number Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 2-12 System Message Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 2-13 Fault Detection General Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 2-14 Fault Detection Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 2-15 General System Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 2-16 CPU Controlling Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 2-17 Speech Path Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 2-18 Speech Path Range of Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 2-19 3M

Figure 2-20 How to Hold a Circuit Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 2-21 How to Set the ROM in IC Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 2-22 How to Clean the Connector Portion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 2-23 How to Clean Gold-Plated Terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 2-24 Diagnostic Work Items and Symbols Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 2-25 Recovery Procedure Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 2-26 Circuit Card Version Number, Program Name, and Program Package Version Number . . . . 34

Figure 4-1 Circuit Card Mounting Face Layout of LPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

Figure 4-2 CPR Face Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Figure 4-3 How to Replace the CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

Figure 4-4 Removal of Front Panel and Top Cover from CPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

Figure 4-5 Insertion of ISAGT and LANI Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

Figure 4-6 Reattachment of CPR Top Cover and Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Figure 4-7 Accommodation of New CPR into LPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Figure 4-8 Insertion of New HFD into CPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Figure 4-9 Removal of Front Panel and Top Cover From CPR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Figure 4-10 Insertion of ISAGT and LANI Cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Figure 4-11 Reattachment of CPR Top Cover and Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Figure 4-12 Location of New CPR Into LPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Figure 4-13 Insertion of New HFD Into CPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Figure 4-14 Circuit Card Mounting Face Layout of TSWM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Figure 4-15 System Block Diagram (Connections Between GT and CPU). . . . . . . . . . . . . . . . . . . . . . . . . 268

Figure 4-16 System Block Diagram (TSW and Other Speech Path Echelons). . . . . . . . . . . . . . . . . . . . . . 273

Figure 4-17 LEDs and Switches for TSW Changeover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274

Figure 4-18 Circuit Card Mounting Face Layout of PIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Figure 4-19 FANU Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296

Figure 4-20 Preparation for FANU Replacement (Fans on TOPU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297

Figure 4-21 How to Replace FANU (Fans on TOPU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298

Figure 4-22 Preparation for FANU Replacement (Fans in Fan Box). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Figure 4-23 How to Replace FANU (Fans in Fan Box) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

®

Model 8012 Portable Field Service Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

LIST OF FIGURES NDA-24300
Page x
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LIST OF FIGURES (CONTINUED)

Figure Title Page

Figure 4-24 CPR Face Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

Figure 4-25 Extraction of CPR from LPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302

Figure 4-26 Rear View of CPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302

Figure 4-27 How to Remove the Cooling FAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

Figure 4-28 Fuses Used by System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

Figure 4-29 Blown Fault Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

Figure 4-30 Fuse Locations Within System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

Figure 4-31 Fuse Location Within TSWM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306

Figure 4-32 RGU Fuse Blown Fault Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

Figure 4-33 DC -48V Fuse Blown Fault Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Figure 5-1 Controlling LC/ELC Circuit Cards and Speech Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

Figure 5-2 Controlling Trunk Circuit Cards and Speech Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

Figure 5-3 ATT Connector Cabling and Connector Leads Accommodation. . . . . . . . . . . . . . . . . . . . . . . 330

Figure 5-4 Range of Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

Figure 5-5 Unit Control Block Diagram (Dual Configuration). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

Figure 5-6 Unit Control Block Diagram (Single Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

Figure 5-7 MUX Card Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

Figure 5-8 Speech Path Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

Figure 5-9 CPU Controlling Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

Figure 5-10 Alarm Bus Cable Connections Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

Figure 5-11 Cable Routing for Alarm Indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

Figure 5-12 Cabling Related to Alarm Indicating Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

Figure 5-13 Block Diagram of Power Supply System (IMG0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Figure 5-14 Block Diagram of Power Supply System (IMG1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Figure 5-15 Block Diagram of Power Supply System (IMG2/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Figure 5-16 Power Supply to PIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

Figure 5-17 Power Supply to LPM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

Figure 5-18 Power Supply to TSWM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

Figure 5-19 Circuit Diagram of Fan Unit and Thermal Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

Figure 5-20 Dial Tone Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

Figure 5-21 External Hold Tone Supply Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378

Figure 5-22 System Down Fault Repair Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

Figure 5-23 Controlling CCIS Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Figure 5-24 Controlling ISDN Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Figure 6-1 System Status Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

Figure 6-2 Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

Figure 6-3 Alarm Indications on TOPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

Figure 6-4 Automatic Printout to System Message Dedicated Printer Operating Procedure . . . . . . . . . . 393

Figure 6-5 Recovery Procedure From Lockout Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

Figure 6-6 Line Load Control Operations on ATTCON—Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

Figure 6-7 Line Load Control Operations on ATTCON—Cancelling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397

Figure 6-8 Locations of Lamps (ATTCON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397

Figure 6-9 Line Load Control Key Operations on DESKCON—Setting . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Figure 6-10 Line Load Control Key Operations on DESKCON—Cancelling. . . . . . . . . . . . . . . . . . . . . . . . 398

Figure 6-11 Line Load Control Indication (DESKCON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399

Figure 6-12 Class Change and Number Change of Station and Data Terminal Procedure . . . . . . . . . . . . 402

Figure 6-13 Make-Busy/Make-Busy Cancel of C.O. Line/Tie Line Procedure . . . . . . . . . . . . . . . . . . . . . . 402

Figure 6-14 Message Format for Outgoing Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406

Figure 6-15 Message Format for Incoming Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407

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Figure Title Page

Figure 6-16 Message Format for Station-to-Station Call. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408

Figure 6-17 Message Format for Outgoing Call - Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417

Figure 6-18 Message Format for Incoming Call - Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418

Figure 6-19 Message Format for Station-to-Station Call - Fusion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Figure 6-20 SMDR—TCP/IP Interface Billing Output Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423

Figure 6-21 IPX “MAT Menu” Display Image (Example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Figure 6-22 DTFD Command Display Image (Example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

Figure 6-23 “Listup Report” Window when “View Database” is Selected (Example) . . . . . . . . . . . . . . . . . 431

Figure 6-24 “Export” Dialog for Traffic Report Text File Saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431

Figure 6-25 Office Data Change Procedure (for Release 1 or 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434

Figure 6-26 Office Data Change Procedure (for Release 3 or Later) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

Figure 6-27 Backup Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436

Figure 6-28 Test Operation Method Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438

Figure 6-29 Register Test Procedure/Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440

Figure 6-30 Sender Test Procedure/Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441

Figure 6-31 3-Party Conference Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

Figure 6-32 3-Party Conference Test Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443

Figure 6-33 Tone Test Procedure/Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

Figure 6-34 Interrupt Ringing (IR) Test Procedure/Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 446

Figure 6-35 Trunk Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447

Figure 6-36 Trunk Test Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448

Figure 6-37 Switching Network General Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456

Figure 6-38 How to Check LEDs and SW Keys for System Changeover (IMG0). . . . . . . . . . . . . . . . . . . . 457

Figure 6-39 How to Check LEDs and SW Keys for System Changeover (IMG1). . . . . . . . . . . . . . . . . . . . 458

Figure 6-40 How to Check LEDs and SW Keys for System Changeover (IMG2/3) . . . . . . . . . . . . . . . . . . 459

Figure 6-41 How to Check STATUS LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460

Figure 6-42 System Block Diagram (Switching Network Between CPU and GT). . . . . . . . . . . . . . . . . . . . 462

Figure 6-43 CPU in ACT/STBY Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463

Figure 6-44 GT in ACT/STBY Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463

Figure 6-45 CPU Changeover via MBR Key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464

Figure 6-46 LED Indications Before and After CPU Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464

Figure 6-47 Forced CPU Changeover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465

Figure 6-48 System Block Diagram (Switching Network for Speech Path System) . . . . . . . . . . . . . . . . . . 468

Figure 6-49 TSW/DLKC/MUX in ACT Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469

Figure 6-50 TSW/DLKC/MUX in STBY Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469

Figure 6-51 Speech Path System Changeover via Active GT MBR Key . . . . . . . . . . . . . . . . . . . . . . . . . . 470

Figure 6-52 LED Indications Before and After Speech Path System Changeover . . . . . . . . . . . . . . . . . . . 470

Figure 6-53 Check of Active PLO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471

Figure 6-54 PLO in ACT/STBY Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472

Figure 6-55 PLO Changeover via MB Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 473

Figure 6-56 LED Indications Before and After PLO Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 473

Figure 6-57 Conceptional Diagram of Initial Program Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477

Figure 6-58 Related Keys and LEDs for System Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478

Figure 6-59 How to Turn ON the Whole System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487

Figure 6-60 How To Turn OFF the Whole System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488

Figure 7-1 Flow of Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495

Figure 7-2 Adjusting Time on ATTCON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 507

Figure 7-3 Desk Console. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508

Figure 8-1 Port Status Report (MG) Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 614

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LIST OF FIGURES (CONTINUED)

Figure Title Page

Figure 8-2 Port Status Report (MG, Unit) Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 615

Figure 8-3 Port Status Report (MG, Unit, Group) Display—Designating Group . . . . . . . . . . . . . . . . . . . . 616

Figure 8-4 Port Status Report (MG, Unit, Group) Display—Designating Group-Trunk . . . . . . . . . . . . . . . 617

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Page xiii

Issue 1

LIST OF TABLES

Table Title Page

Table 2-1 Summary of This Manual’s Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Table 2-2 Kinds of Circuit Card Front Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 3-1 System Messages List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 3-2 Error Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Table 3-3 Error Kind (ERRK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Table 4-1 LPM Unit/Circuit Cards and Reference Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

Table 4-2 TSWM Circuit Cards and Reference Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

Table 4-3 PIM Circuit Cards and Reference Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .284

Table 5-1 Fault Repair Procedure Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Table 5-2 Line Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Table 5-3 Trunk Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Table 5-4 Timings for Trunks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Table 5-5 Timings for Senders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

Table 5-6 Unit Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

Table 5-7 Speech Path (TSW) System Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

Table 5-8 Control System Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

Table 5-9 Alarm Indication Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

Table 5-10 PWR Supply Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Table 5-11 CCIS Line Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Table 5-12 ISDN Line Fault Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Table 6-1 Description of Alarm Indications on TOPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .392

Table 6-2 Message Judgment Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400

Table 6-3 ASCII Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

Table 6-4 Centralized Billing—Fusion Kinds of Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415

Table 6-5 Traffic Measurement Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425

Table 6-6 Designated Connection Test (Station) Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439

Table 6-7 Tone Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445

Table 6-8 Changeover of CPU Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461

Table 6-9 Changeover of Switching Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 466

Table 6-10 System Initialization by Turning On Power Supply Procedure . . . . . . . . . . . . . . . . . . . . . . . . 475

Table 6-11 System Initialization Procedure Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476

Table 6-12 System Initialization Without Loading [Procedure #1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479

Table 6-13 System Initialization With Office Data Loading From HD [Procedure #2] . . . . . . . . . . . . . . . . 480

Table 6-14 System Initialization with Program Loading From HD [Procedure #3] . . . . . . . . . . . . . . . . . . 481

Table 6-15 System Initialization With Office Data And Program Loading From HD [Procedure #4] . . . . . 482

Table 6-16 System Initialization by Phase 1 Restart [Procedure #5] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483

Table 6-17 System Initialization by Keys on CPU Front Panel Procedure . . . . . . . . . . . . . . . . . . . . . . . . 484

Table 6-18 System Initialization by SINZ Command Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485

Table 6-19 Line/Trunk Initialization Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486

Table 6-20 Start-Up When Basic & Application Software Is Installed [Procedure #1] . . . . . . . . . . . . . . . . 490

Table 6-21 Start-Up When Basic, Application Software, and Office Data Installed [Procedure #2] . . . . . 492

Table 7-1 Test Equipment and Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 496

Table 7-2 List of Routine Maintenance Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .497

Table 8-1 Command List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 519

Table 8-2 Type of Traffic Measurement Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524

Table 8-3 Type of Traffic Measurement Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525

Table 8-4 Telephone Equipment Number Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 552

LIST OF TABLES NDA-24300
Page xiv
Issue 1

LIST OF TABLES (CONTINUED)

Table Title Page

Table 8-5 Internal Route Number Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553

Table 8-6 Route Number Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 597

Table 8-7 Type of Circuit Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 614

Table 8-8 Route Number Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 617

NDA-24300 LIST OF TABLES

Page xv

Issue 1

This page is for your notes.

LIST OF TABLES NDA-24300
Page xvi
Issue 1

CHAPTER 1 INTRODUCTION

1. GENERAL

This manual describes routine system mainten ance procedures and faul t repair procedures. Thi s chapter explains
how to follow the manual and provides precautions pertaining to maintenance jobs as a whole. Be sure to read
this chapter thoroughly before starting the required maintenance project.

2. HOW TO FOLLOW THIS MANUAL

If technicians engage in a fault repair with a sufficient amount of knowledge of the system (system
configurations, controlling systems, functions, etc.), the time spent repairing the system is minimized. This
manual provides explanations about the system, while placing emphasis on system configurations, controlling
systems, and functions. If fau lts of all conceivable cas es are to be assumed for the expl anations, the explanat ions
may lack reality and be more difficult to understand. Therefore, this manual provides the explanations on the
basis of the following points:

(1) It is very important to determine whether the fault occurred in the PBX or at any of the peripheral equip-

ment.

(2) In case the PBX is faulty, explanations are provided about the actions to take until the faulty circuit card/

cards are identified.

(3) Explanations will be omitted pertaining to the following faults:

• Fault of peripheral equipment (MAT, telephone sets, etc.)

• Fault due to an error in office data assignment

• Fault due to an error in ins tall atio n proced ure (an er ror i n circ uit ca rd swit ch s etting, c ross- conn ecti on,
etc.)

(4) How to Read This Manual

• When a fau lt is to be repaire d for the first time

See Section 3, How to Read Prec autions, Diagnostic,

Go to Chapter 5.

See Section 4, Reporti ng Fault to NEC, in Chapter 2.

and F a ult Repair Information, Chapter 2.

NDA-24300 CHAPTER 1

Page 1

Issue 1

INTRODUCTION

• When only the contents of a system message needs to be known, or when a fault is to be diagnosed
from a system message

• When the range of faulty conditions has been specified and a faulty circuit card can be assumed

• When investigating the system for the purpose of a fault repair

Chapter 5

Chapter 5

See Section 4, Repo rting Fault to NEC, in Chapter 2.

See Section 2, Basic Knowledge, in Chapter 2.

Chapter 5

• When replacing a unit/circuit card with a spare

Chapter 4

• When performing routine maintenance

Chapter 7

CHAPTER 1 NDA-24300
Page 2
Issue 1

CHAPTER 2 SYSTEM MAINTENANCE OUTLINE

1. GENERAL

1.1 Purpose

This chapter explains the outline of fault diagnosis and duties necessary to maintain the PBX.

1.2 Administrative Management Procedures

Figure 2-1 shows the work flow of the administrative management procedures.

Administrative

Management Procedures

Administrative Procedures

Expansion and Change of
Station Users

See Chapter 6

Traffic Management

Actions on Claims from
Station Users and/or Operators

Management Procedures

Station Message Detail
Recording System (SMDR)

Routine Diagnosis

Diagnosis result, system message displays abnormality

Routine Maintenance

System Status Monitor

Alarm Indications

Collection of System Messages

Indication of Lockout Stations

See Chapter 6

(A)

(B)

Office Data Management and Office
Data Protection

See Chapter 6

(A)

See Chapter 6

See Chapter 6

See Chapter 7

See Chapter 6

Fault Analysis/
Test Operation/
Changeover/
Make-Busy/Circuit
Card Change/
Initialization

Line fault

Circuit card fault
Terminal

(Tel., etc.) fault

Fault cause not
able to be localized

(B)

Refer to

Chapter 5

(Abnormal
Congestion)

Line Load Control

See Chapter 6

Figure 2-1 Flow of Administrative Management Procedures

NDA-24300 CHAPTER 2

Page 3

Issue 1

SYSTEM MAINTENANCE OUTLINE

1.3 Summary of This Manual’s Contents

Table 2-1 provides a brief description of the contents for each chapter in this manual.

Table 2-1 Summary of This Manual’s Contents

CHAPTER DESCRIPTION

2See Section 2, Basic Knowledge.

Explains basic knowledge of fault detection and indi cation, functions and fault range of th e system,
etc.

See Section 3, Ho w to Read Pr ecautions, Diagnos tic , and Fault Repair Information.
Explains the methods of procedure performance and various symbols used in the description.

See Section 4, Reporting Fault to NEC.
Explains the method of f orward ing f ault y circ uit cards, the meth od of creating a hist ory recor d for fu-

ture fault repair, and the method of reporting faults to NEC.

3 Explains how to read and analyze system messages.
4 Explains the method of replacing a unit/circuit card due to a fault.
5 Explains repair procedures corresponding to the faults of processors or equipment.
6 Explains how to control the system in service management functions and precautions required in the

system control process.

7 Explains routine maintenance.
8 Explains the commands used in the system administrative management procedure.

2. BASIC KNOWLEDGE

This section identifi es the information nec essary for the system operations and maintenance procedures.

2.1 System Configuration

2.2 Line Equipment Numbers (LENS)

2.3 Local P artition (LP) Numbe r

2.4 System Messages

2.5 Fault Detecting Function

2.6 Range of Faults Specification

2.7 Explanation of Terms

CHAPTER 2 NDA-24300
Page 4
Issue 1

SYSTEM MAINTENANCE OUTLINE

2.1 System Configuration

Figure 2-2 sho ws t he sys tem configuration of the f ully e xpanded 4-IMG t ype. F or detai ls on e ach modul e

accommodation, see Figure 2-3 through Figure 2-5.

IMG0

TOPU

PIM3

PIM2

FANU

PIM1

PIM0

LPM

BASEU

BASEU: Base U n i t
DUMMY: Dummy Box
FANU: Fan Unit
LPM: Local Processor Module
PIM: Port Interface Module
TOPU: Top Unit
TSWM: Time Division Switch Module

Figure 2-2 System Configuration

IMG1

TOPU

PIM3

PIM2

FANU

PIM1

PIM0

TSWM
BASEU

FRONT VIEW

IMG2

TOPU

PIM3

PIM2

FANU

PIM1

PIM0

DUMMY

BASEU

IMG3

TOPU

PIM3

PIM2

FANU

PIM1

PIM0

DUMMY

BASEU

NDA-24300 CHAPTER 2

Page 5

Issue 1

SYSTEM MAINTENANCE OUTLINE

Figure 2-3 shows the face layout of IMG0.

IMG0

TOPU

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PH-PC36 (MUX)

PH-PC36 (MUX)

PWR0

PWR1

PIM 3

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PH-PC36 (MUX)

PH-PC36 (MUX)

PWR1

PWR0

PIM 2

FANU

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PH-PC36 (MUX)

PWR1

PWR0

PIM 1

Note:

0000010102020303040405 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PH-PC36 (MUX) PH-PC36 (MUX)

PWR1

PWR0

PIM 0

PH-PC40 (E MA)

PH-IO24 (IOC)

Note

LPM

BASEU

Front View

The 2nd IOC card (optional) may be mounted in this slot.

Figure 2-3 Face Layout of IMG0

PH-PC36 (MUX)

CHAPTER 2 NDA-24300
Page 6
Issue 1

SYSTEM MAINTENANCE OUTLINE

Figure 2-4 shows the face layout of IMG1.

TOPU

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PA-PW 55-A (PW R 0)

PA-PW 54-A (PW R 1)

PWR1

PWR0

PIM 3

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PA-PW 55-A (PW R 0)

PA-PW 54-A (PW R 1)

PWR0

PWR1

PIM 2

FANU

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PWR0

PWR1

PIM 1

IMG1

PH-PC36 (MUX)

PH-PC36 (MUX)

PH-PC36 (MUX)

PH-PC36 (MUX)

PH-PC36 (MUX)

PH-PC36 (MUX)

PH-PC36 (MUX)

0000010102020303040405 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 212122

PH-PC36 (MUX) PH-PC36 (MUX)

PH-PC36 (MUX)

PWR0

PWR1

PIM 0

TSWM

BASEU

PWRSW0

05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

PWRSW1

MISC

MISC

MISC

MISC

MISC

DLKC0

DLKC1

GT0

GT1

TSW01

TSW00

TSW02

TSW03

TSW10

TSW11

PLO0

TSW12

TSW13

Front View

PWRSW: PH-PW14 DLKC: PH-PC20 GT: PH-GT09 TSW: PH-SW12
PLO: PH-CK16/17/16-A/17-A

Note:

No circuit card is mounted in Slot 02 of TSWM. Instead, on the backboard of this slot, a
terminal resistor with a total of two in a dual system is fastened.

Figure 2-4 Face Layout of IMG1

22 23

23

PLO1

NDA-24300 CHAPTER 2

Page 7

Issue 1

SYSTEM MAINTENANCE OUTLINE

Figure 2-5 shows the face layout of IMG 2/3.

IMG2/3

TOPU

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PH-PC36 (MUX)

PH-PC36 (MUX)

PWR1

PWR0

PIM 3

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PH-PC36 (MUX)

PH-PC36 (MUX)

PWR1

PWR0

PIM 2

FANU

PIM 1

PIM 0

DUMMY

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 2121222223

PH-PC36 (MUX)

PWR1

PWR0

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PH-PC36 (MUX) PH-PC36 (MUX)

PH-PC36 (MUX)

PWR1

PWR0

BASEU

Figure 2-5 Face Layout of IMG2/3

CHAPTER 2 NDA-24300
Page 8
Issue 1

Front View

SYSTEM MAINTENANCE OUTLINE

2.2 Line Equipment Numbers (LENS)

The Line Equipment Numbers (LENS) are used to specify the location of a circuit (trunk/port) in any of
the PIM universal slots. Refer to the figures in this section, and confirm the LENS format used in the
system.

As shown in Fig ure 2-6, the LENs co nsist s of si x digit s: tw o dig its fo r MG, one digit for U, tw o digi ts fo r
G, and one digi t for Lv.

LENS = XX X XX X

Lv (Level) : 0 - 7

Note:

If an FCH (PA-FCHA) card is used, line gr oups 24-31 can be u sed as the e xtended gr oup numbers.

2.2.1 Module Group

Figure 2-7 explai ns the Module Gr oup (MG). In a full y expande d system, the MG number ranges from

00 to 07.

IMG0

TOPU

PIM3

MG01

PIM2

FANU

G (Group) : 00 - 23
U (Unit) : 0 - 3

MG (Module Group) : 00 - 07

Figure 2-6 LENS Format

IMG1

TOPU

MG03

FANU

MG05

IMG2

TOPU

FANU

Note

IMG3

TOPU

MG07

FANU

PIM1

PIM0

MG00

LPM

BASEU

MG02

TSWM

BASEU

FRONT VIEW

MG04

DUMMY

BASEU

Figure 2-7 Module Group Allocations

NDA-24300 CHAPTER 2

MG06

DUMMY

BASEU

Page 9

Issue 1

SYSTEM MAINTENANCE OUTLINE

2.2.2 Unit

Figure 2-8, which represents a fully expanded system, explains the Unit (U) numbers. The numbers

range from 0 to 3, a nd each u nit r epres ents th e PI M universal sl ots, No. 04-12 ( U 0/2) or No. 15-23 (U
1/3).

On each Module Group (MG: #00 - 07), a total of four Units (U0 - U3) can be assigned.

PIM3

PIM2

PIM1

PIM0

Slots No.

IMG0

TOPU

U2

U3

MG01

U0

U2

FANU

U1

U3

MG00

U0

BASEU

U1

LPM

Unit Number (U = 0/2) Unit Number (U = 1/3)

00 02 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

IMG1

TOPU

U2

MG03

U0

U2

MG02

U0

TSWM

BASEU

U3

U1

FANU

U3

U1

FRONT VIEW

U2

MG05

U0

FANU

U2

MG04

U0

DUMMY

BASEU

IMG2

TOPU

U3

U1

U3

U1

U2

MG07

U0

U2

MG06

U0

DUMMY

BASEU

IMG3

TOPU

U3

U1

FANU

U3

U1

PWR

PWR

Number

of

Time Slots

(16)(16)

16 16 16 16 16 16

Control Control

Figure 2-8 Unit Number Allocations

CHAPTER 2 NDA-24300
Page 10
Issue 1

MUX (PH-PC36) 0

MUX (PH-PC36) 1

192 TS192 TS

PIM

16 16 16 16 16 16 32 32 3216 16 16 16 16 16 32 32 32

SYSTEM MAINTENANCE OUTLINE

2.2.3 Group

The Group (G) numbers are allocated as shown in Figure 2-9. A total of two Groups are assigned on
each universal slots within the PIM. Slot numbers 10, 11, 12, 21, 22, 23 can contain a total of four
Groups as an exception.

A total of two or four Groups (G) can be assig ned on eac h PIM uni ve rsal s lot.

PIM3

PIM2

PIM1

PIM0

IMG0

TOPU

U2

U3

MG01

U0

U2

U0

U1

FANU

U3

MG00

U1

LPM

BASEU

00 02 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PWR

PWR

IMG1

TOPU

U2

MG03

U0

U2

MG02

U0

TSWM

BASEU

U3

U1

FANU

U3

U1

U2

U0

U2

U0

MUX (PH -P C 36) 0

IMG2

TOPU

MG05

FANU

MG04

DUMMY

BASEU

MUX (PH -P C 36) 1

U3

U1

U3

U1

PIM

FRONT VIEW

U2

U0

U2

U0

DUMMY

IMG3

TOPU

MG07

FANU

MG06

BASEU

U3

U1

U3

U1

G = 03

G = 02

Slot No. 05

Slot No. 10

G = 15

16 ports total

G = 14

32 ports total

G = 13

Note:

G = 12

11

10

14
13
12

19
18
17

16

22

20

PIM

21

Group No.

Slot No.

Extended
Group No.

Note

01

00(25)(24)

27 29 31
26 28 30

04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 02

030205040706090811

10

15
14
13
12

19
18
17
16

23
22
21
20

010003020504070609

08

27 29 31
26 28 30

23

15

U = 0 / 2 U = 1 / 3

In addition to Group No. 00 - 23, the system can use No. 24 - 31 as theoretically valid numbers.

Figure 2-9 Group Number Allocations

NDA-24300 CHAPTER 2

Page 11

Issue 1

SYSTEM MAINTENANCE OUTLINE

2.2.4 Level

Figure 2-10 explains the Level (Lv) numbers. There are a total of eight Levels (Lv0 - Lv7) on every

Group number, which ranges from 00 to 31.

A total of eight Levels (Lv0 - Lv7) c an be ass i gned on each Group.

PIM3

PIM2

PIM1

PIM0

U2

MG01

U0

U2

MG00

U0

BASEU

IMG0

TOPU

FANU

LPM

U3

U1

U3

U1

IMG1

TOPU

U2

MG03

U0

FANU

U2

MG02

U0

TSWM

BASEU

U3

U1

U3

U1

FRONT VIEW

IMG2

TOPU

U2

MG05

U0

FANU

U2

MG04

U0

DUMMY

BASEU

U3

U1

U3

U1

U2

MG07

U0

U2

MG06

U0

DUMMY

BASEU

IMG3

TOPU

FANU

U3

U1

U3

U1

Group

(G = Odd No., < 11)

Group

(G = Even No., < 10)

Group No.

Level (Lv)

7
6

5
4
3
2

1
0
7
6
5
4
3
2
1
0

U = 0 / 2

00 02 04 05 06 07 08 09 10 11 12 13 14

0100030205040706090811

(24) (25)

2726292831

15

19

23

14

18

22

13

17

21

10

12

16

20

30

16-port Slot

U = 1 / 3

15 16 17 18 19 20 21 22 23

0100030205040706090811

2726292831

15

19

14

18

13

17

10

12

16

30

32-port Slot

23
22

PIM

21
20

Level (Lv)

7
6
5
4
3

Group

(G = 15/19/23)

2
1
0

7
6
5
4
3

Group

(G = 14/18/22)

2
1
0
7
6
5
4
3

Group

(G = 13/17/21)

2
1
0

7
6
5
4
3

Group

(G = 12/16/20)

2
1
0

Figure 2-10 Level Number Allocations

CHAPTER 2 NDA-24300
Page 12
Issue 1

SYSTEM MAINTENANCE OUTLINE

2.3 Local Partition (LP) Number

The Local Partition (LP) number refers to a logical local processor number, theoretically assigned for each
IMG that consists of four (or less) Port Interface Modules (PIM). Though the local processor does not
actually e xist in any of the IM Gs, ex cept for IMG0, the system can apply the tw o-digit LP number to each
IMG (see Figure 2-11) on its da ta memory program. The LP numbers are used primarily i n t he following
cases:

• Display of system messages

• Assignment of line load control data (ALLC command)

• Backup for Call Forwarding/Speed Calling data (MEM_HDD command), etc.

The Local Partition No. (two digits, even number) is assigned on each IMG.

IMG0

TOPU

PIM3
PIM2

FANU

PIM1
PIM0

LPM

BASEU

LP No. = 00 LP No. = 02 LP No. = 04 LP No. = 06

IMG1

TOPU

PIM3
PIM2

FANU

PIM1
PIM0

TSWM

BASEU

FRONT VIEW

IMG2

TOPU
PIM3

PIM2
FANU
PIM1

PIM0

DUMMY

BASEU

IMG3

TOPU

PIM3
PIM2

FANU

PIM1
PIM0

DUMMY

BASEU

Figure 2-11 LP Number Allocations

NDA-24300 CHAPTER 2

Page 13

Issue 1

SYSTEM MAINTENANCE OUTLINE

2.4 System Messages

System messages display during routine diagnosis, system operation status controlling, and fault
occurrence. Figure 2- 12 shows an example of a system message.

Refer to Chapter 3 for details on each message.

(1) SYSTEM MESSAGE 3-E SUP LOCK UP FAILURE (TEMPORARY)
(2) NEC TOKYO JUL 24 09:35

(3) LP00-0-ACT
(4)

Meaning:

1:1102 0000 0000 0000 2:0000 0000 0000 0000 3:0000 0000 0000 0000
4:0000 0000 0000 0000 5:0000 0000 0000 0000 6:0000 0000 0000 0000
7:0000 0000 0000 0000 8:0000 0000 0000 0000 9:0000 0000 0000 0000

(1) : SYSTEM MESSAGE 3-E SUP LOCK-UP FAILURE (TEMPORARY)

Meaning of the message

System Message Level
(Indicated by Alarm Lamp) Note

System Message Number

Note:

There ar e four kin ds of alarm information to be indicated by alarm lamps : MN,
MJ, SUP, and No Indication.

(2) : Office Name, Date and Time

(3) : LP00-0-ACT

ACT/STBY indication for dual systems

No.0/No.1 system indication for dual systems

Faulty processor/Related processor

(4) : Message detail data (notation by hexadecimal numbers)

Figure 2-12 System Message Example

CHAPTER 2 NDA-24300
Page 14
Issue 1

SYSTEM MAINTENANCE OUTLINE

2.5 Fault Detecting Function

The system fin ds a f ault b y its f aul t dete cting c ircui t and th e f aul t detec ting progr am. Once a fa ult occ urs,
the system initiates a remedial action such as system changeover, make-busy setting, or restart processing
by the automatic di agnosis func tion. This ac tion reduces the influe nce of the f ault so t hat system ser vicing
may be minimized. The result of the process taken and the fault situation are indicated for equipment
concerned.

Among the faults, those related to speech path (noise , one-way speech, sp eech inability, etc.) are not
detectable. Since t hese f ault r eports a re to be obtaine d from a s tation o r operator, periodic trunk tests must
be performed without failure to detect the faults related to speech path.

Figure 2-13 show s an out line of fault detecti on, and Figure 2-14 shows a block di agram of f ault det ection.

Fault Occurrence
Indication

Display of
System Messages

Indication of
Alarm Lamps
on TOPU

NEC

Information
Collection and Diagnosis

Example of Faults

IOC

Fault of line/trunk card

CPU

NEAX 2400 IMS

EMA

TSW write failure,
Fault of cloc ks , etc.

Abnormal temperature,
power supply failure ,
fuse blowing, etc., within
the equipment frame

Figure 2-13 Fault Detection General Diagram

NDA-24300 CHAPTER 2

Page 15

Issue 1

SYSTEM MAINTENANCE OUTLINE

Alarm Lamps on TOPU

Symbols

To MAT,
Printer, etc.

: Circuit Card
: Main faults to be detected

: Speech path
: Flow of fault information

IOC

CPU

Firmware
Fault

C-level
monitor

RDY
Clock
etc.

TSWM

Howler
Ringing
Circuit

GT

RDY
Clock
Write
etc.

Ready

Thermal Reed Relay

LC/TRK

MUX

TSW/INT

DLKC

PWR

Note:

MJ, MN fault
Power, Fuse blown fault

Fault
Information

Note

Temperature, CPU fault
Speech Path System fault (SPE)
RGU, Howler fault
PFT fault
CPU Clock fault

SYMBOL NAME SYMBOL NAME

CPU

EMA

IOC

LC/TRK

GT

PWR

Central Processing Unit
Emergency Alarm Controller
I/O Controller
Line/Trunk
Gate
Power Supply

Figure 2-14 Fault Detection Block Diagram

CHAPTER 2 NDA-24300
Page 16
Issue 1

DLKC

TSW

TSWM

INT

MUX

PWR Supply
Failure,
Fuse Blown

EMA

Data Link Controller
Speech Path Control Interface
Time Division S w itch
Multiplexer
Time Division Switch Module

SYSTEM MAINTENANCE OUTLINE

(a) Main Faults

Faults that may o ccur in the syst em can be general ly categor ized into Processo r System F ault, Speech
Path System Fault, Line/Trunk Fault, etc.

• Processor System Fault
The CPU alarm detecting circuit contin uously monitors whether the CPU is working normally. If

a fault is detected, the CPU calls up the diagnostic program, which identifies the cause of the fault
and determines whether the fault is temporary or permanent. When the fault affects system
operations, Active/Standby status of the CPU is changed over (provided that the system has dual
configuration).

• Bus System Fault
The CPU transfers line/trunk card control information to the associated peripheral circuits via IO

Bus. When a parity error is detected in the transfer data or when the required information cannot
be transferred from a circuit card, the CPU identifies the cause of the fault, changes over the CPU
so that system operation is not affected, and executes restart processing.

• Speech Path Fault
The CPU monitors the operating status of the TSW card, the occurrence of errors in writing data

to the switch memory, and the basic clocks suppli ed to the s peech path . Upon detect ing a f ault, th e
CPU identifies the cause of the fault, determines whether the fault is temporary or permanent, and
executes required processing such as changeover of the TSW card.

•Others
The alarm detecting circui t on the EMA card con tinuousl y monitors the occ urrence of fa ults in the

PWR supply cards, such as abnormal temperatures within the equipment frame, and lights the
alarm lamp on the TOPU when a fault is detected.

(b) Lamp Indications on the TOPU

When a fault occurs, the corr esponding lamp on the T OPU indicate s the locati on of the f ault. F or the
meaning of each lamp indication, refer to Chapter 6.

NDA-24300 CHAPTER 2

Page 17

Issue 1

SYSTEM MAINTENANCE OUTLINE

2.6 Rang e of Faults Specification

(1) Upon receiving a fault report from a station user or an operator, the technician can assume a faulty card

exists if the ran ge to be af fected by the fault ca n be determin ed. Fo r the detail ed procedure , refer to Chap-

ter 5. Use the fo llowing actions to check the MDF:

(a) Check the LENS of the reporter (Station or ATTCON/DESKCON).
(b) Check other circuits of the circuit card in which the reporter (station line or ATTCON/DESKCON)

is located.

(c) Check the ot her gr oups ( other circ uit c ards mou nted i n the sa me module) in t he mo dule in which the

reporter is located.

(d) Check lines in each of the other modules on the basis of plural lines.

(2) If the fault cannot be dete cted by the system (a f ault relate d to the speech path s uch as noise duri ng speech,

one-way speech, speech inability), the range of (a) through (d) (itemized above) should be limited.

(3) Wh e n a ma jo r faul t is det e cted i n the du al sys te ms , the C PU or TS W sy st em auto m ati c al ly ch ang es over

if the fault ra nge is (c) an d (d). In th is case, the w hole modul e involved is placed into m ake-busy sta tus
even if the fault is partial, and the station lines currently operating normally become faulty status.
Diagnose the fault from the content of the system message displayed and repair the fault as required.

(4) When limiting the range of faults, consider the system circuitry that consists of the control (see Figur e 2-

16, where CPU 0 is active) and speech path syst ems (se e Figure 2-17).

(5) As seen from the block diagrams in Figure 2-15 through Figure 2-18, if a fault occurs within the common

portions to be controlled, all other associated portions are affected by that fault occurrence. If the range
of faults is outside PIM fault, CPU/TSW system changeover is executed (only when the fault is detectable
by the system).

CHAPTER 2 NDA-24300
Page 18
Issue 1

SYSTEM MAINTENANCE OUTLINE

E1/DS1
with

Fusion Link

IMG0

PM BUS

LC/TRK LC/TRK

PM BUS

LC/TRK LC/TRK

PM BUS

LC/TRK LC/TRK

PM BUS

FCH LC/TRK

DTI

MUX

MUX

MUX

MUX

SERIAL BUS

TSWM

TSW 00

To MUX

TSW 01

To MUX (IMG2)

T
S

W
I

/

O

B

U
S

0

TSW 02

To MUX (IMG3)

TSW 03

PLO 0

MISC I/O BUS MISC I/O BUS

DLKC 0 DLKC 1

TSW 10

To MUX

TSW 11

To MUX (IMG2)

TSW 12

To MUX (IMG3)

TSW 13

MISC

PLO 1

T
S

W
I

/
O

B

U
S

0

MUX

MUX

MUX

MUX

PM BUS

LC/TRK LC/TRK

PM BUS

LC/TRK LC/TRK

PM BUS

LC/TRK LC/TRK

PM BUS

LC/TRK

FCH

DTI

E1/DS1
with

Fusion Link

Symbols

: Circuit Card

GT 1GT 0

G
T

B

LPM

HUB HUB

10 BASE-T 10 BASE-T

EMA: PH-PC40 ISAGT: PZ-GT13 LANI: PZ-PC19 GT: PH-GT09 IOC: PH-IO24
TSW: PH-SW12 DLKC: PH-PC20 M UX: PH-PC36 PLO: PH-CK16/17/16-A/17-A

U
S

ISAGT
CPU 0

LANI LANI

MISC I/O BUS

EMA

01

MISC

IOC

RS-232C

MAT

10 BASE-T

HUB

G

T
B

U
S

ISAGT
CPU 1

LANI LANI

MATAP

Figure 2-15 General System Block Diagram

NDA-24300 CHAPTER 2

Page 19

Issue 1

SYSTEM MAINTENANCE OUTLINE

PIM 3

PIM 2

PIM 1

PIM 0

MUX

MUX

MUX

MUX

IMG0

LC/TRK

LC/TRK

LC/TRK

LC/TRK

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

LC/TRK

LC/TRK

LC/TRK

LC/TRK

MUX

MUX

MUX

MUX

TSWM

PIM 3

PIM 2

PIM 1

PIM 0

M

M

M

M

M

U

U

X

X

003

002

TSW/INT TSW/INT TSW/INTTSW/INT

M

U

U

U

U

X

X

X

X

001

000

013

012

MUX

MUX

MUX

MUX

TSW

M

M

/INT

U

U

X

X

011

010

TSW
02

TSW
/INT

TSW
03

IMG1

LC/TRK

LC/TRK

LC/TRK

LC/TRK

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

M

M

M

U

U

U

X

X

X

100

101

102

LC/TRK

LC/TRK

LC/TRK

LC/TRK

M
U
X

103

MUX

MUX

MUX

MUX

To IMG 2To IMG 3 To IMG 3To IMG 2

TSW

TSW

M

M

M

M

U

U

U

U

X

X

X

X

110

111

112

113

/INT

/INT

TSW

TSW

13

12

TSW 00 TSW 10 TSW 11TSW 01

TSW I/O

DLKC 1

DLKC 1

MISC BUS

BUS

LPM

CPR

CPU clock

PCI BUS

LANI

Note 2

ISAGT 0

CPU 0

MEMORY

T
M

ISA BUS

CPU board

Reset Signal

PWR

MISC BUS

EMA

PWR

IOC /
MISC

MISC BUS

IOP1

Note 3

IOP0

CPR
(ST-BY)

ISAGT 1

GT 0

GT 1

BUS

TSW I/O

MISC BUS

MISC BUS

DLKC 0

MISC BUS

MISC BUS

Note 1

MISC BUS

PLO 0 PLO 1

Symbols
: Controlling Routes of CPU : Cable

: Circuit card (active) : Circuit card (STBY)
: External Cable : Clock Oscillator
: Signral

T

EMA: PH-PC40 ISAGT: PZ-GT13
LANI: PZ-PC19 GT: PH-GT09
IOC: PH-IO24 TSW: PH-SW12
DLKC: PH-PC20 PLO: PH-CK16/17/16-A/17-A
MUX: PH-PC36

Note 1: The circuit cards, drawn by dotted lines, indicate they are in STBY state. These cards (TSW, MUX and
DLKC) are totally changed over to the ACT mode, when the MBR key of the active GT (PH-GT09) card is
once flipped. However, PLO (PH-CK16/17/16-A/17-A) is independent and not affected by the development.

Note 2: If the ACT/STBY of CPU is once changed over, the system of GT (in TSWM) also changes over.
Note 3: Though an external cable is physically connected between ISAGT0 and GT1, the actual control signal is

sent/received only between ISAGT0 and GT0. This is because GT0 and GT1 are having a multiple connection
on the backboard side. (Refer to Chapter 6, Section 12.)

Figure 2-16 CPU Controlling Block Diagram

CHAPTER 2 NDA-24300
Page 20
Issue 1

SYSTEM MAINTENANCE OUTLINE

PIM 3

PIM 2

PIM 1

PIM 0

MUX

MUX

MUX

MUX

IMG2

LC/TRK

LC/TRK

LC/TRK

LC/TRK

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

LC/TRK

LC/TRK

LC/TRK

LC/TRK

MUX

MUX

MUX

MUX

PIM 3

PIM 2

PIM 1

PIM 0

MUX

MUX

MUX

MUX

IMG3

LC/TRK

LC/TRK

LC/TRK

LC/TRK

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

PM BUS

LC/TRK

MUX

LC/TRK

MUX

LC/TRK

MUX

LC/TRK

MUX

To IMG 0To IMG 1 To IMG 1To IMG 0

TSWM

M

M

M

M

U

U

U

U

X

X

X

X

023

022

021

020

TSW/INT TSW/INT TSW/INTTSW/INT

TSW
/INT

TSW
00

TSW
/INT

TSW
01

M

M

M

M

M

M

M

U

U

U

U

X

X

X

X

120

121

122

123

M

U

U

U

U

X

X

X

X

130

131

132

133

M

M

M

M

U

U

U

U

X

X

X

X

033

032

031

030

TSW
/INT

TSW
10

TSW
/INT

TSW
11

TSW 02 TSW 12 TSW 13TSW 03

BUS

TSW I/O

MISC BUS

DLKC 1

DLKC 1

MISC BUS

LPM

CPR

CPU clock

PCI BUS

LANI

Note 2

ISAGT 0

ISA BUS

CPU 0

MEMORY

CPU board

TSW I/O

MISC BUS

BUS

DLKC 0

IOP1

GT 0

Note 3

T

M

MISC BUS

Reset Signal

PWR

EMA

IOC /
MISC

MISC BUS

PWR

IOP0

CPR
(ST-BY)

ISAGT 1

GT 1

T

MISC BUS

MISC BUS

Note 1

MISC BUS

PLO 0 PLO 1

Symbols
: Controlling Routes of CPU : Cable

: Circuit card (active) : Circuit card (STBY)
: External Cable : Clock Oscillator
: Signral

EMA: PH-PC40 ISAGT: PZ-GT13
LANI: PZ-PC19 GT: PH-GT09
IOC: PH-IO24 TSW: PH-SW12
DLKC: PH-PC20 PLO: PH-CK16/17/16-A/17-A
MUX: PH-PC36

Note 1: The circuit cards, drawn by dotted lines, indicate they are in STBY state. These cards (TSW, MUX and
DLKC) are totally changed over to the ACT mode, when the MBR key of the active GT (PH-GT09) card is
once flipped. However, PLO (PH-CK16/17/16-A/17-A) is independent and not affected by the development.

Note 2: If the ACT/STBY of CPU is once changed over, the system of GT (in TSWM) also changes over.
Note 3: Though an external cable is physically connected between ISAGT0 and GT1, the actual control signal is

sent/received only between ISAGT0 and GT0. This is because GT0 and GT1 are having a multiple connection
on the backboard side. (Refer to Chapter 6, Section 12.)

Figure 2-16 CPU Controlling Block Diagram (Continued)

NDA-24300 CHAPTER 2

Page 21

Issue 1

SYSTEM MAINTENANCE OUTLINE

PIM 3

PIM 2

PIM 1

PIM 0

MUX

MUX

MUX

MUX

LC/TRK

LC/TRK

LC/TRK

LC/TRK

IMG0

LC/TRK LC/TRK

LC/TRK LC/TRK

LC/TRK LC/TRK

LC/TRK LC/TRK

MUX

MUX

MUX

MUX

PIM 3

PIM 2

PIM 1

PIM 0

MUX

MUX

MUX

MUX

LC/TRK

LC/TRK

LC/TRK

LC/TRK

IMG1

MUX

LC/TRK LC/T RK

MUX

LC/TRK LC/T RK

MUX

LC/TRK LC/T RK

MUX

LC/TRK LC/T RK

LVDS (Low Voltage Differential Signaling)

TSWM

TSW 00

MUX 003
MUX 002

MUX 001
MUX 000

TSW/INT

TSW 10

MUX 100
MUX 101

MUX 102
MUX 103

TSW/INT

Symbols
: Speech Path

: Circuit Card (active)

Figure 2-17 Speech Path Block Diagram

TSW 01

MUX 013
MUX 012

MUX 011
MUX 010

TSW/INT

TSW 11

MUX 110
MUX 111

MUX 112
MUX 113

TSW/INT

: Cable
: Circuit Card (STBY)

To IMG2

To IMG2

TSW/

TSW/

INT

INT

TSW

TSW

02

12

TSW: PH-SW12
MUX: PH-PC36

To IMG3

TSW/

INT

TSW

03

To IMG3

TSW/

INT

TSW

13

CHAPTER 2 NDA-24300
Page 22
Issue 1

SYSTEM MAINTENANCE OUTLINE

PIM 3

PIM 2

PIM 1

PIM 0

MUX

MUX

MUX

MUX

LC/TRK

LC/TRK

LC/TRK

LC/TRK

IMG2

LC/TRK LC/TRK

LC/TRK LC/TRK

LC/TRK LC/TRK

LC/TRK LC/TRK

MUX

MUX

MUX

MUX

PIM 3

PIM 2

PIM 1

PIM 0

MUX

MUX

MUX

MUX

LC/TRK

LC/TRK

LC/TRK

LC/TRK

IMG3

MUX

LC/TRK LC/T RK

MUX

LC/TRK LC/T RK

MUX

LC/TRK LC/T RK

MUX

LC/TRK LC/T RK

LVDS (Low Voltage Differential Signaling)

TSWM

TSW 02

MUX 023
MUX 022

MUX 021
MUX 020

TSW/INT

TSW 12

MUX 120
MUX 121

MUX 122
MUX 123

TSW/INT

Symbols
: Speech Path

: Circuit Card (Active)

Figure 2-17 Speech Path Block Diagram (Continued)

TSW 03

MUX 033
MUX 032

MUX 031
MUX 030

TSW/INT

TSW 13

MUX 130
MUX 131

MUX 132
MUX 133

TSW/INT

: Cable
: Circuit Card (STBY)

To IMG0

To IMG0

TSW/

TSW/

INT

INT

TSW

TSW

00

TSW: PH-SW12
MUX: PH-PC36

10

To IMG1

TSW/

INT

TSW

01

To IMG1

TSW/

INT

TSW

11

NDA-24300 CHAPTER 2

Page 23

Issue 1

SYSTEM MAINTENANCE OUTLINE

A fault within this range affects two sl ots.

PIM 3

PIM 2

PIM 1

LC/TRK

LC/TRK

A fault within this range
affects the circuit card.

LC/TRK

LC/TRK

A fault within this range
affects the circuit card.

LC/TRK

LC/TRK

32ch

32ch

32ch

MUX

A fault within this range
affects two slots.

MUX

A fault within this range
affects two slots.

MUX

A fault within this range
affects this module.

512ch

A fault within this range
affects this module.

512ch

A fault within this range
affects this module.

512ch

PIM 0

Symbols

A fault within this range
affects the circuit card.

A fault within this range
affects two slots.

LC/TRK

LC/TRK

A fault within this range
affects the circuit card.

TSW

: Circuit Card : Possible fault range to be affected : Speech Path

32ch

MUX

TSW/INT

A fault within this range
affects this module.

512ch

Figure 2-18 Speech Path Range of Fault

CHAPTER 2 NDA-24300
Page 24
Issue 1

2.7 Explanation of Terms

• C-Level Infinite Lo o p
The program repeatedly e xecutes speci fic routines due to a fault of the main memory , data des truction,

etc. The program is not a ble to b e proces se d normall y. This faulty condition is re ferr ed to as Program
Infinite Loop. C-Level infinite loop is a state where a clock-level program, which runs under clock
interrupt disable state, is in an infi nite loop status.

• B-Level Infinite Lo o p
This is a state where a program infinite loop has occurred during a connection processing and the

connection for the ne xt call is not able to be processed.

• Port Microprocessor (PM)
Each line/trunk card mounted in the PIM is equipped with a processor called Port Microprocessor

(PM), which continuously supervi se s the lines /t runks.

• Ready Error
For acknowledging the connection between the CPU and a circuit card, an interface signal called

Ready Signal is used. When the CPU has accessed a specific circuit card and the normality of the
connection is ac kno wledged, th e Ready S ignal is returne d to the CPU wi thin 6 µs. If the Ready signa l
is not returne d to the CPU within 6 µs after access, the situation is referred to as Ready Error.

SYSTEM MAINTENANCE OUTLINE

• Parity Error
For confirming the normality of data transfer between the CPU and the circuit card under the control

of the CPU, parity check is made. When an error is detected in a parity check, it is referred to as Parity
Error. Parity check means to confirm the normality of data by adding an error detecting parity bit to
a set of data to be transferred.

When a set of data is transferred , a parity bit is added to the data so that the data has an even-number
of “1” bits (it is referred to as Even Parity). When there is an odd-number of “1” bits in the received
one set of data, it is detected as an error.

• Monitor Restart
Monitor restart processing suspends current processings in progress without applying any hardware

controlling, allowing the system to restart its operations from th e monitor program.
The system abandons only the processings of the calls being handled by the program, and maintains

all the connections that have already been established.

• Circuit Card Front Initializing Restart
The whole system is forcibly initialized. However, the initialization varies with the setting of the

SENSE switch on the DSP of CPU (see Table 2-2).

NDA-24300 CHAPTER 2

Page 25

Issue 1

SYSTEM MAINTENANCE OUTLINE

Table 2-2 Kinds of Circuit Card Front Restart

SENSE (0~F) KIND OF RESTART REMARKS

1 DM C lear Restart
2 DM Load Restart When the system is in operation
5 OAI Memory Clear Restart

C OFF-line Restart

• PM (Line/Trunk Card) Make-Busy Restart
In this processing, the fault y PM (Line/Trunk Card) is isolated from the system and, at the same ti me,

the calls associated with that faulty PM (Line/Trunk Card) are released. No calls related to the faulty
PM (Line/T runk Card) are processed and t he system normal ly runs without the faulty PM (Line/T runk
Card).

• Data Copy Restart
In a system of dual CPU conf iguration, t he RAM memory (including th e data memory) is copi ed from

the ACT side CPU into the STBY side CPU, and ACT/STBY is changed over and monitor restart is
executed.

In the case of this restart processing, only the ACT side CPU and the STBY side CPU are changed
over without any effect on the current connections. However, no call processings are executed while
the restart processing is in progress (from copying until the end of the changeover).

3. HOW TO READ PRECAUTIONS, DIAGNOSTIC, AND FAULT REPAIR INFORMATION

3.1 Precaution about Diagnostic Procedure/Fault Repair Procedure

When performi ng diagnostic p rocedures/fau lt repair procedures, always adhere to the following actions:

(1) W hen replacing a circuit card with a spare, h andle the circuit card usi ng the Field Servic e Kit.

(a) To protect the circuit card from static electricity, wear a wrist strap before handling the circuit ca rd.
(b) B efore extractin g th e ci rcuit card from its mounting slot, set its MB s witch to the UP side (ON).

(2) When holding a circuit card by hand, wear glov es and be careful not to touch mounted pa r ts , go ld-plated

terminal, etc., on the circuit card.
The 3M



Model 8012 Portable Field Service Kit, shown in Figure 2-19, is recommended as an effective

countermeasure against static electricity.

CHAPTER 2 NDA-24300
Page 26
Issue 1

SYSTEM MAINTENANCE OUTLINE

Connect ground wire to the Earth
terminal of the Module Group.

Place the Circuit
Card on a
conductive sheet.

Note:

Wrist Strap

3M is a registered trademark of Minnesota Mining and Manufacturing, Inc.

Figure 2-19 3M

Circuit Card

8
7
6
5
4

4

3

3

2

2

1

OFF

1

OFF

8
7
6

8

5

7

4

6

3

5

2

4

1

OFF

3
2
1

OFF

Plastic Bag

8
7
6
5
4
3
2
1

OFF

4
3
2
1

OFF

®

Model 8012 Portable Field Service Kit

Gold Plated Terminal

7

4

2

3

8

4

1

2

3

6

1

5

OFF

OFF

4

2

3

7

8

5

6

1

OFF

4

2

3

7

8

5

6

1

OFF

4

2

7

3

8

5

6

1

OFF

Circuit Card

Note

Card Puller Tab

Note:

Do not touch the Gold-Plated Terminal with bare hands.

Figure 2-20 How to Hold a Circuit Card

NDA-24300 CHAPTER 2

Page 27

Issue 1

SYSTEM MAINTENANCE OUTLINE

(3) When a circuit card appears to be faulty, check the following items before replacing it with a spare:

(a) Poor connector contact at the circuit card may be responsible for the fault. Repeat insertion and ex-

traction of the circuit card a few times. Clean the connector portion, and reche ck for proper operation.

(b) C hec k th e le ad w i res o f vert ic al ly- m oun t ed pa rts ( resi s to rs , ca pa cit or s , e tc. ) to ensu re th ey have not

shorted each other or broken.

(c) Check t he back side o f the c ircui t car d to se e i f there i s an y short -cir cuite d solde red por tion, or mod-

ified cross connect ion wires erroneously left unconnected.

(d) Check the ROMs to ensure proper seating in the IC socket. Figure 2-21 shows a leg th at is be nt an d

not set in the socket.

A pin is bent, not
inserted in the socket.

ROM

SOCKET

Figure 2-21 How to Set the ROM in IC Socket

CHAPTER 2 NDA-24300
Page 28
Issue 1

SYSTEM MAINTENANCE OUTLINE

(4) How to clean the connector portion (gold-pl ated terminal):

(a) Dip th e gold-plated terminal port ion in the clea ning fluid for 3 to 5 seconds (on ly PA-XX type circuit

card), as sh own i n Figure 2-22.

Cleaning
Fluid

Circuit

Card

Figure 2-22 How to Clean the Connector Portion

Container

Note 1:

Some of the parts are subject to damage if they come in contact with the cleansing liquid. Be careful
to allow only the connector portion (gold-plated terminal) to contact the cleaning liquid.

Note 2:

Be sure to use fresh cleaning fluid (FREON or isopropyl alcohol).

(b) Using a soft cotton cloth, wipe both s ides of the connector po rtion (gol d-plate d terminal) clean (onl y

PA-XX type circuit card), as shown in Figure 2-23.

gauze

Gold-plated terminal

Figure 2-23 How to Clean Gold-Pl at ed Terminal

Note 1:

Note 2:

Use cloth (gauze, etc.) to clean.

After wiping, be careful not to leave lint on the surface of the circuit card.

(5) When a check on the flat cable or LT cable is directed in the tree, check the following items:

(a) Make a visual check to see if the connector is properly connected.
(b) Poor connector contact may be responsible for the faul t. Repeat connection and disconne ction a fe w

times, and check again to see if the connector is properly connected.

(c) Perform continuity test on the flat cable.

(6) When replacing the circuit card is directed in the tree, replace the circuit card with a spare as per Chapter 4.

(7) When multiple circuit cards a ppear to be faulty, before replacing them with spares, remount them (one at

a time) into their slots , to determine which cards should be replaced.

NDA-24300 CHAPTER 2

Page 29

Issue 1

SYSTEM MAINTENANCE OUTLINE

• The following is an e xample where the fault was recovered after the replacement of circuit cards:

START

Set the 1st circuit card back into its mounting slot

If the fault recurs: Replace the circuit card .

Set the 2nd circuit card back into its mounting slot

If the fault recurs: Replace the circuit card .

Set the 3rd circuit card back into its mounting slot

If the fault recurs: Replace the circuit card .

If a circuit card is found to be faulty, send the faulty circuit card for repair.

The fault may be a temporary one, or due to poor contact of the circuit card. Observe the
situation fo r a while.

END

(8) When a fault recovery is completed, use the RALM command to clear all the alarm indications and

registered sys tem messages. If r equired, rest ore temporary cros s connections and transient data for testi ng
to the origi nal ones.

3.2 How to Follow Diagnostic Procedure/Fault Repair Procedure

(a) Diagnostic Work

A fault diagnost ic pro ced ure by syste m messa ge is e xplai ned in the “TREE” f ormat o n an in dividual
system message basis.

• Proceed with judgment as to whether the fault status coincides with the indicated status, following
the sequence beginning from START.

• How to proceed with the diagnosis work is explained in Figure 2-24.

STEP 1 Determine whether the fault coincides with the fault status (1) in Figure 2-24.

STEP 2 If the fault status does coincide, t he fault is indica ted by (2) . Repair the fault by r eferri ng to the

relevant section in Chapter 5. Otherwise, pro cee d to (3).

STEP 3 Perform the work indicated by (3). The result of the work (3) is broken down as indicated by

(4).

STEP 4 Determine whether the result of work (3) coincides with the status indicated by (5). If so, the

fault(s) is/are indicated either by (6) or by (7). If not, proceed to the next Step.

CHAPTER 2 NDA-24300
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Issue 1

SYSTEM MAINTENANCE OUTLINE

STEP 5 Perform the work indicated by (8), and if the result of the work is the same as the status indi-

cated, the fault is indicated by (9). If the fault repair work indicated by (9) affects another nor­mal line, recheck the work as indicated by (10).

(b) Fault Repair Procedure

A fault repair procedure is explained by means of “TREE” format in Chapter 5. The following ex-
plains how to follow the “TREE” format and proceed with designated work. See Figure 2-25.

• Begin from START and proceed with the necessary repair work following the sequence.

• When a faulty circuit ca rd (or circuit cards) is suspect ed, replace the f aulty circu it card with a spar e
in accorda nc e with the work p r ocedure pertaining to that specific circuit card.

STEP 1 Replace the circuit card indicated by (A) with a spare and check it. Perform the detailed work

as per (B). If the fault status is beyond repair, proceed to the next step.

STEP 2 If the range of the fault or the system configuration is as indicated by (C), perform a check as

indicated by (D). If the fault status is beyond repair, proceed to the next step.

STEP 3 Replace the circuit card indicated by (E) with a spare and check it. The detailed procedure in-

dicated by (G) varies with the system configuration indicated by (F).

NDA-24300 CHAPTER 2

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SYSTEM MAINTENANCE OUTLINE

Note:

START

END

(4)

When

Perform

When

(1)

(3)

(5)

When

(5)

When

(8)

with

performed

(2)

FAULT

FAULT SUPERVISION

FAULT

FAULT

: It is the fault of

Section No.

(7)

: It is the fault of

Section No.

(9)

:

CHECK OF WORK
Section No.

(Chapter 5)

(11)

(6)

(Chapter 5)

(11)

(10)

(Chapter 5)

(11)

(1): Judgment of fault status
(2),(6),(7),(9): When the fault status c oincides with the ind ication, t he caus e of the fau lt is indica ted.
(11): When repairing the fault, refer to the relevant section in Chapter 5.
(3): Operating items for diagnosis
(4): Branching of the result of the operation
(5): Judgment of the status of the result of the operation
(8): When operating method is unknown, refer to Chap ter 6.

Figure 2-24 Diagnostic Work Items and Symbols Example

CHAPTER 2 NDA-24300
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Issue 1

SYSTEM MAINTENANCE OUTLINE

START

Check

When

Check

When

When

(A)

(C)

(E)

(F)

(B)

(D)

Check

(G)

(F)

(G)

END

Figure 2-25 Recovery Procedure Example

4. REPORTING FAULT TO NEC

When the cause of a fault is uncertain, make note of the situation involved and report it to NEC. When for­warding faulty circuit cards to NEC, exercise cau tion to protect from static el ectricity.

4.1 Fault Reporting Method

The following three items must be included in the report without fail:

(1) Faulty situation (reports should be similar to “dial tone is not heard only on individual lines,” “incoming

C.O. line calls are not able to be terminated only to a specific ATTCON/DESKCON,” etc.)

• Faulty phenomena
On lifting the handset, d ia l tone is not heard but side tone is heard, etc.

NDA-24300 CHAPTER 2

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SYSTEM MAINTENANCE OUTLINE

• History of fault
When did the fault occu r? What kind of repair procedur e has been executed? Does the fault still exist

or not exist? etc.

• Range of fault
Range of fault sh ould be report ed: Single li ne?, Specif ic trunk? , Specif ic circuit card?, Speci fic PIM?,

Whole system?, etc.

(2) Circuit Card Version Number, Program Name, and Program Package Version Number of the circuit card.

See Figure 2-26.

PA­16LCBE

Circuit Card Name

Circuit Card Version Number

Program Name

SPA­16LCBE

SP 785

A 6A
Program Package
Version Number

Front

9A 91-03

TR 5448

Right View of Circuit Card

Figure 2-26 Circuit Card Version Number, Program Name, and Program Package Version Number

CHAPTER 2 NDA-24300
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SYSTEM MAINTENANCE OUTLINE

4.2 Forwarding Faulty Circuit Card Method

Send the faulty circuit card to the NEC agent to whom a request is made for a replacement card. Adhere
to the following procedure for sending the faulty circuit card:

(1) Insert connector covers onto the circuit card terminals.

(2) Put the circuit card into a static electricity protective bag.

(3) Pack the circuit card with air cap, etc.

(4) Set the circuit card into the cardboard box for that specific circuit card.

(5) If multiple circuit cards are to be sent, set each circuit card in a separate cardboard box and stuff the box

with shock absorbing material.

Note:

When sending a fault y circuit card, put it in a static gua rd bag . To pre vent dama ge , never place the cir-
cuit card in a vinyl bag or ship it without a protective bag.

NDA-24300 CHAPTER 2

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Issue 1

This page is for your notes.

CHAPTER 2 NDA-24300
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Issue 1

CHAPTER 3 SYSTEM MESSAGES

This chapter explains how to read and ana lyze sy stem message s displayed du ring routine diag n osis, syst em op­eration status controlling, and occurrence of a fault within the system. Ta ble 3-1 provides a list of system mes­sages.

Table 3-1 System Messages Lis t

MESSAGE NO. SYSTEM MESSAGE

0-C Reset Interrupt
0-D CPU Clock Down

0-E C-Level Infinite Loop

0-F Memory Failure
0-G B 1-Level Inf inite Loop (Permanent)
0-H B 1-Level Inf inite Loop (Temporary)

0-I Mate CPU Failure

0-J Abnormal Interrupt
1-A B ot h TSW Failure (Permanent)
1-B TSW Failure (Permanent)
1-C Both TSW Writ e Failure
1-D TSW Write Failure

1-E Both TSW Clock F a i l ure
1-F TSW Clock Failure

1-O B ot h PLO Failure

1-P PLO Failure
1-S Module Group Down Failure

1-T TSW ACT Change Report
1-U DLKC Data Transfer Failure (Permanent)
1-V DLKC Data Transfer Failure (Temporary)

1-W PLO Restore

2-T AP-INT Data Transfer Failure (Permanent) Note 4
2-U AP-INT Data Transfer Failure (Temporary) Note 4
2-V IP Data Transfer Failure (Permanent) Note 4

2-W IP Data Transfer Failure (Temporary) Note 4

NDA-24300 CHAPTER 3

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SYSTEM MESSAGES

Table 3-1 System Messages List (Continued)

MESSAGE NO. SYSTEM MESSAGE

3-B C-Level Infinite Loop (Permanent)
3-C C-Level Infinite Loop (Temporary)
3-D Lo ck-Up Failure (Permanent)

3-E Lock-Up Failure (Temporary)

3-F -48V Over Current
3-G Ground Failure
3-H Digital Line Warning

3-I Digital Line Failure

3-J Digital Line Restore
4-C Both TSW Ready F a i l ur e
4-D TS W Ready F ai lure
4-Q DLKC Ready Failure

4-R IO Ready Failure for UAP Note 4

4-S MUX Ready Failure

4-T Both MUX Ready Failure
4-U PCI Card Failure
4-V PCI Card Failure Recovered
6-A System Failure
6-B RGU & Howler Failure
6-C Line Load Control Start
6-D Line Load Control Stop
6-H Bad Call Notification

6-I STA-Test Connection Data
6-J Emergency Call

6-L Emergency Control Start

6-M Emergency Control Stop

6-N Abnormal Call Duration Data
6-O SMDR Output Buffer Overflow Alarm

6-P SMDR Output Buffer Overflow Release
7-A System Initialize With Data Load

CHAPTER 3 NDA-24300
Page 38
Issue 1

Table 3-1 System Messages List (Continued)

MESSAGE NO. SYSTEM MESSAGE

7-B System Initialize
7-C CPU MBR Key Turn ON
7-D CPU MBR Key Turn OFF

7-E TSW MBR Key Turn ON

7-F TSW MBR Key Turn OFF
7-G TSW PLO Key Turn ON
7-H TSW PLO Key Turn OFF

7-I ALMC MB Key Turn ON
7-J ALMC MB Key Turn OFF

7-K PM MB Key Turn ON

7-L PM MB Key Turn OFF

7-M NCU MB Key Turn ON

SYSTEM MESSAGES

7-N NCU MB Key Turn OFF
7-O Cyclic Diagnosis Normal

7-P Cyclic Diagnosis Information (Error Detected)
7-U PLO MB Key Turn ON
7-V PLO MB Key Turn OFF

13-A CCH Clock Failure
13-B CCH C-Level Infinite Loop Failure (Permanent)
13-C CCH C-Level Infinite Loop Failure (Temporary)
13-D CCH Lock-Up Failure (Permanent)
13-E CCH Lock-Up Failure (Temporary)

13-F CCH B-Level Infinite Loop Failure (Permanent)
13-G CCH B-Level Infinite Loop Failure (Temporary)
13-H CCS Link Failure (Permanent)

13-I CCS Link Failure (Temporary)

13-J Restoration From CCS Link Failure
13-K CCH Reset Interrupt Failure
13-N Digital Line Warning
13-O Digital Line Failure

NDA-24300 CHAPTER 3

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Issue 1

SYSTEM MESSAGES

Table 3-1 System Messages List (Continued)

MESSAGE NO. SYSTEM MESSAGE

13-P Digital Line Restore
13-Q DRU Battery Operation
13-R DRU Line Operation
13-Z Power Failure
15-A VPS Failure (Temporary)
15-B VPS Failure (Permanent)
15-C VPS Restore
16-A Inside Trunk All Busy
16-B Virtual Tie Line Set Report
16-C Virtual Tie Line Cancel Report
16-E Virtual Tie Line Set Time Out

16-F Sender Start Time Out
16-K I/O Port Line OFF
16-L I/O Port Line Restore

16-M Hard Clock Failure

16-N Hard Clock Restore
16-T IOC Failure (T emporary)
16-U IOC Failure (Permanent)
16-X Station Exchanged Report
17-A CCH MBR Key Turn ON
17-B CCH MBR Key Turn OFF
17-C CCH MB Key Turn ON
17-D CCH MB Key Turn OFF
17-H Day/Night Change Information
17-O IOC MB Key Turn ON

17-P IOC MB Key Turn OFF
17-Q IOC MBR Key Turn ON
17-R IOC MBR Key Turn OFF

23-J ATM Interface Warning Note 2
23-K ATM Interface Failure Note 2

CHAPTER 3 NDA-24300
Page 40
Issue 1

Table 3-1 System Messages List (Continued)

MESSAGE NO. SYSTEM MESSAGE

23-L ATM Interface Recovered Note 2

23-P DCH Back-Up Automatic Change Start/End
23-Q DCH Back-Up Manual Change Start/End

23-R ATM Interface Change Report Note 2

23-S FCCH Failure Note 1
23-T FCCH Failure Recovered Note 1
23-U FCCH Status Notice Note 1

23-W FCCH Advancing Start Note 1

23-X FCCH Advancing End Note 1

23-Y MUX Clock Failure
23-Z Both MUX Clock Failure

25-J ZT Operation Start Note 3

SYSTEM MESSAGES

25-K ZT Set Up NG Note 3
25-L ZT Fault Note 3

25-M ZT Fault Recovery Note 3

25-N ZT Carrier Fault Note 3

26-N MAT Log
26-R Call Trace
26-V LAN Interface Error Report

26-W LAN Interface Release Report

27-C ATM Interface Port MB Key ON Note 2
27-D ATM Interface Port MB Key OFF Note 2

33-A MUX Clock Restore
33-B SDT Alarm Warning
33-C SDT Alarm Trouble
33-D SDT Alarm Restore
33-E SDT Interface Change Notify

Note 1:
Note 2:
Note 3:
Note 4:

Refer to Fu sion Network System Manu al.
Refer to the manual related to ATM.
Refer to Wireless System Manual.
Refer to the manual related to OAI.

NDA-24300 CHAPTER 3

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Issue 1

SYSTEM MESSAGES

Reset Interrupt

0-C

Default Alarm:

MN

This messag e displays w he n the process or is reset due to a failure in the system.

1: XXXX XX00 XXXX 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀➁ ➂ ➃

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

Self-CPU Restart Information

b7 b6 b4 b3 b1 b0

➁

Mate-CPU Restart Information (FF

H: not mounted)

b7 b6 b4 b3 b1 b0

➂

Related-call Release Result

b7 b0

b0: 0/1 = -/Monitor Restart
b1: 0/1 = -Phase 1 Restart Note 1
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy Restart executed (for Dual-CPU system only)
b6: 0/1 = Program Load not executed/executed
b7: 0/1 = ACT/STBY (active system indication after restart)

b0: 0/1 = -/Monitor Restart
b1: 0/1 = -Phase 1 Restart Note 1
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy Restart executed (for Dual-CPU system only)
b6: 0/1 = Program Load not executed/executed
b7: 0/1 = ACT/STBY (active system indication after restart)

b7: 0/1 = Call Release Processing after rest art ->“Normal End”/“ Abnorm al

End”

Reference: See Chapter 5, Section 6.2 and Section 6.3, for the repair procedure.

CHAPTER 3 NDA-24300
Page 42
Issue 1

➃

Data Load Result after restart
processing

b7 b6 b5 b4 b3 b2 b1 b0

b15 b11 b9 b8

SYSTEM MESSAGES

b0: 0/1 = Office Data Load ->“Normal End”/“Abnormal End”
b1: 0/1 = Data Load ->“Normal End”/“Abnormal End”
b2: 0/1 = Individual Speed Calling data load is “Normal End”/“ Abnormal

End”
b3: 0/1 = PS transfer service data load is “Normal End”/“Abnormal End”
b4: 0/1 = PS Name Display service data load is “Normal End”/“ Abnormal

End”
b5: 0/1 = -/Network DM Load ->“Normal End”/“Abnormal End”
b6: 0/1 = -/Local DM Load ->“Normal End”/“Abnormal End”
b7: 0/1 = -/DM Non Load
b8: 0/1 = User Assign Soft Key data load is “Normal End”/“Abnormal

End”
b9: 0/1 = Number Sharing data load is “Normal End”/“Abnormal End”

Note 2

b11: 0/1 = Call Block data load is “Normal End”/“Abnormal End”

Note 1:

Note 2:

Phase 1 Restart is executed when initializing the system without disrupting the following two-way
connections that have already been established:

• Basic two-way connections (STN-STN, STN-TRK, TRK-TRK)

• Fixed connections

• Two-way connections established on a Fusion link

For more details, see Chapter 6, Section 12.2.3.

Number sharing data load also affects the data load of Dual Station Calling Over-FCCS.

NDA-24300 CHAPTER 3

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Issue 1

SYSTEM MESSAGES

CPU Clock Down

0-D

Default Alarm:

MN

This message displays when a fault has occurred to the clock oscillator in the CPU.

1: XXXX XX00 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

➀

Self-CPU Restart Information

b7 b5 b4 b3 b0

Default Grade:

3

b0: 0/1=-/Monitor Restart
b3: 0/1=-/Initialization
b4: 0/1=Data Copy restart (for Dual-CPU system only)
b5: 0/1=-/MB control
b7: 0/1=ACT/STBY (active system indication after restart)

Grade Modified: Lamp Modified:

➁

Male-CPU Resta rt Informatio n (FF

H: not mounted)

b7 b5 b4 b3 b0

➂

Related Call Informatio n

b0: 0/1=-/Monitor Restart
b3: 0/1=-/Initialization
b4: 0/1=-/Data Copy restart (for Dual-CPU system only)
b5: 0/1=-/MB control
b7: 0/1=ACT/STBY (active system indication after restart)

b7: 0/1=Released/Not released

b7 b0

Reference: See Chapter 5, Section 6.2, for the repa ir procedure.

CHAPTER 3 NDA-24300
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Issue 1

SYSTEM MESSAGES

C-Level Infinite Loop

0-E

Default Alarm:

SUP

C-level infinite loop is a state where a clock-level program, running under clock interrupt disable state, is in
an infinite loop. This message displays when the counter value to check the normality of the processing has
become abnormal.

0-E C-level Infinite Loop
1: XXXX XXXX XXXX XXXX 2: XXXX XXXX XXXX XXXX 3: XXXX XXXX XXXX XXXX

Default Grade:

2

Grade Modified: Lamp Modified:

➀ ➁ ➂ ➃ ➄ ➅ ➆

4: XXXX XXXX XXXX XXXX 5: XXXX XXXX XXXX XXXX 6: XXXX XXXX XXXX XXXX

➇

➇

7: XXXX XXXX XXXX XXXX 8: XX00 0000 0000 0000 9: 0000 0000 0000 0000

➇

➀

Self-CPU Rest art Informatio n after

clock fault occurrence

b7 b5 b4 b3 b0

➁

Mate-CPU Restart Information

b7 b5 b4 b3 b0

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy Restart (for Dual-CPU system only)
b5: 0/1 = -/MBcontrol
b7: 0/1 = ACT/STBY (active system indication after restart)

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy Restart (for Dual-CPU system only)
b5: 0/1 = -/MBcontrol
b7: 0/1 = ACT/STBY (active system indication after restart)

➂

NMI Factor

b7 b6 b5 b4 b3 b2 b1 b0

b0: 0/1 = -/Reset by Power On
b1: 0/1 = -/Watchdog Timer timeout
b2: 0/1 = ISAGT is mounted/ISGAT is not mounted
b3: 0/1 = -/OSC clock interrupt on ISGAT
b4: 0/1 = -/IO parity Alarm
b5: 0/1 = -/IO ready Alarm
b6: 0/1 = -/External NMI

Reference: See Chapter 5, Section 6.2, for the repa ir procedure.

NDA-24300 CHAPTER 3

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Issue 1

SYSTEM MESSAGES

➃

System Controlling Port B

b7 b6 b5 b4 b3 b2 b1 b0

➄

CPU Alarm

b7 b6 b5 b4 b3 b2 b1 b0

➅

CPU Changeover Factors

b7 b6 b5 b4 b3 b2 b1 b0

b0: 0/1 = Timer 2 Gate ON/OFF
b1: 0/1 = Speaker Gate ON/OFF
b2: 0/1 = Parity Check Enable/MASK
b3: 0/1 = Channel Check Enable/MASK
b4: 0/1 = -/RAM Refresh Pulse Output State
b5: 0/1 = -/Timer 2 Outp ut St ate
b6: 0/1 = -/Channel Check Error Detected
b7: 0/1 = -/Parity Error Detected

b0: 0/1 = -/ACT-side Processor CLK Alarm
b1: 0/1 = -/ACT-side Processor COP Alarm
b2: 0/1 = -/ACT-side Processor MEM Alarm
b3: 0/1 = -/ACT-side Processor Emergency Timer Overflow
b4: 0/1 = -/STBY-side Processor CLK Alarm
b5: 0/1 = -/STBY-side Processor COP Alarm
b6: 0/1 = -/STBY-side Processor MEM Alarm
b7: 0/1 = -/STBY-side Processor Emergency Timer Ov erflow

b0: 0/1 = -/CLK Alarm
b1: 0/1 = -/Emergenc y Timer Overflow
b2: 0/1 = -/SOFT EMA
b3: 0/1 = -/SOFT changeover
b4: 0/1 = -/Emergency Counter Overflow
b5: 0/1 = STBY/ACT
b6: 0/1 = Dual/Single
b7: 0/1 = CPU #0/CPU#1

➆

System AL M

b7 b6 b5 b4 b3 b2 b1 b0

➇

Data Analyzed by NEC Engineers

CHAPTER 3 NDA-24300
Page 46
Issue 1

b0: 0/1 = -/Main Power Alarm
b1: 0/1 = -/Power Alarm
b2: 0/1 = -/FUSE Alarm
b3: 0/1 = -/TEMP MJ Alarm
b4: 0/1 = -/TEMP MN Alarm
b5: 0/1 = -/Parity Alarm
b6: 0/1 = Card is not mounted/ mou nt e d
b7: 0/1 = -/EMA CLK Ala rm

SYSTEM MESSAGES

Memory Failure

0-F

Default Alarm:

SUP

This message displays when a CPU memory read/write error occ urs.

0-F Memory Failure
1: XXXX XXXX XXXX XXXX 2: XXXX XXXX XXXX XXXX 3: XXXX XXXX XXXX XXXX

Default Grade:

3

Grade Modified: Lamp Modified:

➀ ➁ ➂ ➃ ➄ ➅ ➆

4: XXXX XXXX XXXX XXXX 5: XXXX XXXX XXXX XXXX 6: XXXX XXXX XXXX XXXX

➇

➇

7: XXXX XXXX XXXX XXXX 8: XX00 0000 0000 0000 9: 0000 0000 0000 0000

➇

➀

Information on Self-CPU Restart
after detection of a clock fault

b7 b5 b4 b3 b0

➁

Mate-CPU Restart Information

b7 b5 b4 b3 b0

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy Restart (for Dual-CPU system only)
b5: 0/1 = -/MBcontrol
b7: 0/1 = ACT/STBY (active system indication after restart)

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy Restart (for Dual-CPU system only)
b5: 0/1 = -/MBcontrol
b7: 0/1 = ACT/STBY (active system indication after restart)

➂

NMI Factor

b7 b6 b5 b4 b3 b2 b1 b0

b0: 0/1 = -/Reset by Power On
b1: 0/1 = -/Watchdog Timer timeout
b2: 0/1 = ISGAT is mounted/ISGAT is not mounted
b3: 0/1 = -/OSC clock interrupt on ISGAT
b4: 0/1 = -/IO parity Alarm
b5: 0/1 = -/IO ready Alarm
b6: 0/1 = -/External NMI

Reference: See Chapter 5, Section 6.2, for the repa ir procedure.

NDA-24300 CHAPTER 3

Page 47

Issue 1

SYSTEM MESSAGES

➃

System Controlling Port B

b7 b6 b5 b4 b3 b2 b1 b0

➄

CPU Alarm

b7 b6 b5 b4 b3 b2 b1 b0

b0: 0/1 = Timer 2 Gate ON/OFF
b1: 0/1 = Speaker Gate ON/OFF
b2: 0/1 = Parity Check Enable/MASK
b3: 0/1 = Channel Check Enable/MASK
b4: 0/1 = -/RAM Refresh Pulse Output State
b5: 0/1 = -/Timer 2 Outp ut St ate
b6: 0/1 = -/Channel Check Error Detected
b7: 0/1 = -/Parity Error Detected

b0: 0/1 = -/ACT-side Processor CLK Alarm
b1: 0/1 = -/ACT-side Processor COP Alarm
b2: 0/1 = -/ACT-side Processor MEM Alarm
b3: 0/1 = -/ACT-side Processor Emergency Timer Overflow
b4: 0/1 = -/STBY-side Processor CLK Alarm
b5: 0/1 = -/STBY-side Processor COP Alarm
b6: 0/1 = -/STBY-side Processor MEM Alarm
b7: 0/1 = -/STBY-side Processor Emergency Timer Ov erflow

➅

CPU Changeover Factors

b7 b6 b5 b4 b3 b2 b1 b0

➆

System AL M

b7 b6 b5 b4 b3 b2 b1 b0

➇

Data Analyzed by NEC Engineers

b0: 0/1 = -/CLK Alarm
b1: 0/1 = -/Emergenc y Timer Overflow
b2: 0/1 = -/SOFT EMA
b3: 0/1 = -/SOFT changeover
b4: 0/1 = -/Emergency Counter Overflow
b5: 0/1 = STBY/ACT
b6: 0/1 = Dual/Single
b7: 0/1 = CPU #0/CPU #1

b0: 0/1 = -/Main Power Alarm
b1: 0/1 = -/Power Alarm
b2: 0/1 = -/FUSE Alarm
b3: 0/1 = -/TEMP MJ Alarm
b4: 0/1 = -/TEMP MN Alarm
b5: 0/1 = -/Parity Alarm
b6: 0/1 = Card is not mounted/ mou nt e d
b7: 0/1 = -/EMA CLK Ala rm

CHAPTER 3 NDA-24300
Page 48
Issue 1

SYSTEM MESSAGES

B1-Level Infinite Loop (Permanent)

0-G

Default Alarm:

MN

This message displays when a B-leve l inf inite loop failure occurs.

0-F Memory Failure
1: XXXX XXXX XXXX XXXX 2: XXXX XXXX XXXX XXXX 3: XXXX XXXX XXXX XXXX

Default Grade:

2

Grade Modified: Lamp Modified:

➀ ➁➂

4: XXXX XXXX XXXX XXXX 5: XXXX XXXX XXXX XXXX 6: XXXX XXXX XXXX XXXX

➃

➃

7: XXXX XXXX XXXX XXXX 8: XX00 0000 0000 0000 9: 0000 0000 0000 0000

➃

➀

Information on Self-CPU Restart
after detection of a clock fault

b7 b5 b4 b3 b0

➁

Mate-CPU Restart Information

b7 b5 b4 b3 b0

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy restart (for Dual-CPU system only)
b5: 0/1 = -/MB control
b7: 0/1 = ACT/STBY (active system indication after restart)

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy Restart (for Dual-CPU system only)
b5: 0/1 = -/MBcontrol
b7: 0/1 = ACT/STBY (active system indication after restart)

➂

B-level Infinite Loop

b7 b1 b0

➃

Data Analyzed by NEC Engineers

b0: 0/1 = -/B-le vel Infinite Loop
b1: 0/1 = -/Task Timer Timeout

Reference: See Chapter 5, Section 6.2, for the repa ir procedure.

NDA-24300 CHAPTER 3

Page 49

Issue 1

SYSTEM MESSAGES

B1-Level Infinite Loop (Temporary)

0-H

Default Alarm:

SUP

This message displays when, in the CPU program processing, the counter value to check the normality of the
processing has become abnormal.

1: XXXX XXXX XXXX XXXX 2: XXXX XXXX XXXX XXXX 3: XXXX XXXX XXXX XXXX

➀ ➁ ➂ ➃ ➃ ➃

4: XXXX XXXX XXXX XXXX 5: XXXX XXXX XXXX XXXX 6: XXXX XXXX XXXX XXXX

➃➃➃

7: XXXX XXXX XXXX XXXX 8: XX00 0000 0000 0000 9: 0000 0000 0000 0000

➃➃

Default Grade:

1

Grade Modified: Lamp Modified:

➀

Self-CPU Restart Information

b7 b5 b4 b3 b0

➁

Mate-CPU Resta rt Informatio n (FF

H: not mounted)

b7 b5 b4 b3 b0

➂

b7 b1 b0

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy restart (for Dual-CPU system only)
b5: 0/1 = -/MB control
b7: 0/1 = ACT/STBY (active system indication after restart)

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy restart (for Dual-CPU system only)
b5: 0/1 = -/MB control
b7: 0/1 = ACT/STBY (active system indication after restart)

b0: 0/1 = -/B-le vel Infinite Loop
b1: 0/1 = -/Task Timer Timeout

➃

Data Analyzed by NEC Engineers

Reference: See Chapter 5, Section 6.2 and Section 6.3, for the repair procedure.

CHAPTER 3 NDA-24300
Page 50
Issue 1

SYSTEM MESSAGES

Mate CPU Failure

0-I

Default Alarm:

SUP

This message displays when a fault, such as the Clock down or C-level infinite loop error, has occurred.

1: XX00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

➀

Mate-CPU Restart Information

b7 b3 b2 b1 b0

Default Grade:

3

b0: 0/1 = -/CPU clock down
b1: 0/1 = -/C-level infinite loop
b2: 0/1 = -/Memory error, Parity alarm
b3: 0/1 = -/Emergenc y Timer Overflow

Grade Modified: Lamp Modified:

Reference: See Chapter 5, Section 6.2 and Section 6.3, for the repair procedure.

NDA-24300 CHAPTER 3

Page 51

Issue 1

SYSTEM MESSAGES

Abnormal Interrupt

0-J

Default Alarm:

SUP

This message displays when the system is interrupting abnormally in the processing.

1: XXXX XXXX XXXX XXXX 2: XXXX XXXX XXXX XXXX 3: XXXX XXXX XXXX XXXX

➀ ➁ ➂ ➃ ➃ ➃ ➃

4: XXXX XXXX XXXX XXXX 5: XXXX XXXX XXXX XXXX 6: XXXX XXXX XXXX XXXX

➃➃➃

7: XXXX XXXX XXXX XXXX 8: XX00 0000 0000 0000 9: 0000 0000 0000 0000

➃➃

➀

Self-CPU Restart Information

b7 b5 b4 b3 b0

Default Grade:

2

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy restart (for Dual-CPU system only)
b5: 0/1 = -/MB control
b7: 0/1 = ACT/STBY (active system indication after restart)

Grade Modified: Lamp Modified:

➁

Mate-CPU Resta rt Informatio n (FF

H: not mounted)

b7 b5 b4 b3 b0

➂

b7 b3 b0

➃

Data Analyzed by NEC Engineers

b0: 0/1 = -/Monitor Restart
b3: 0/1 = -/Initialization
b4: 0/1 = -/Data Copy restart (for Dual-CPU system only)
b5: 0/1 = -/MB control
b7: 0/1 = ACT/STBY (active system indication after restart)

b0: 0/1 = -/Abnormal Interrupti on (Hardware)
b3: 0/1 = -/Program Exception

Reference: See Chapter 5, Section 6.2 and Section 6.3, for the repair procedure.

CHAPTER 3 NDA-24300
Page 52
Issue 1

SYSTEM MESSAGES

Both TSW Failure (Permanent)

1-A

Default Alarm:

MN

This message displays when link information cannot be written into the switch memory of the TSW in both
systems.

1: XXXX XXXX XXXX XXXX 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

TSW system in which a fault is
detected

b7 b0

➁

Status at the time of fault detection

b7 b6 b0

➂

Data Analyzed by NEC Engineers

Reference: See Chapter 5, Section 5.3, for the repa ir procedure.

b0: 0/1 = TSW No. 0/TSW No. 1

b0: 0/1 = TSW No. 0 system/TSW No. 1 system
b6: Speech Path in ACT status

0/1 = No. 0 system/No. 1 system

NDA-24300 CHAPTER 3

Page 53

Issue 1

SYSTEM MESSAGES

TSW Failure (Permanent)

1-B

Default Alarm:

MN

This message displays when link information cannot be written into the switch memory of the TSW card in
one of the dual systems.

1: XXXX XXXX XXXX XXXX 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

TSW system in which a fault is
detected

b7 b0

➁

Status at the time of fault detection

b7 b6 b0

➂

Data Analyzed by NEC Engineers

Reference: See Chapter 5, Section 5.4, for the repa ir procedure.

b0: 0/1 = TSW No. 0/TSW No. 1

b0: 0/1 = TSW No. 0/TSW No. 1
b6: 0/1 = Speech Path in ACT status

No. 0 system/N o. 1 system

CHAPTER 3 NDA-24300
Page 54
Issue 1

SYSTEM MESSAGES

Both TSW Write Failure

1-C

Default Alarm:

MN

This message displa ys when the li nk informatio n cannot be writ ten into th e switch memory of th e TSW in both
systems.

1: XXXX XXXX XXXX XXXX 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

2

Grade Modified: Lamp Modified:

➀

TSW system in which a fault is
detected

b7 b0

➁

b7 b6 b0

➂

Data Analyzed by NEC Engineers

Reference: See Chapter 5, Section 5.2 and Section 6.2, for the repair procedure.

b0: 0/1 = TSW No. 0/TSW No. 1

b0: 0/1 = TSW No. 0/TSW No. 1
b6: 0/1 = Speech Path in ACT status

No. 0 system/N o. 1 system

NDA-24300 CHAPTER 3

Page 55

Issue 1

SYSTEM MESSAGES

TSW Write Failure

1-D

Default Alarm:

MN

This message d ispl ays whe n the li nk in form atio n canno t be wr itte n into th e swit ch me mory of the TS W card
in one of the dual systems.

1: XXXX XXXX XXXX XXXX 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

Default Grade:

2

Grade Modified: Lamp Modified:

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

➀

TSW system in which a fault is
detected

b7 b0

➁

Status at the time of fault detection

b7 b6 b0

➂

Data Analyzed by NEC Engineers

Reference: See Chapter 5, Section 5.2, Section 5.4, and Section 6.2, for the repair procedure.

b0: 0/1 = TSW No. 0/TSW No. 1

b0: 0/1 = TSW No. 0/TSW No. 1
b6: 0/1 = Speech Path ACT status

TSW No. 0 system is ACT/TSW No. 1 system is ACT

CHAPTER 3 NDA-24300
Page 56
Issue 1

SYSTEM MESSAGES

Both TSW Clock Failure

1-E

Default Alarm:

MN

This message displays when the system detects a clock failure, such as TSW internal clock down or Frame
Head down, in both systems.

1: XXXX XX00 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

TSW card in which a fault is
detected

b0: 0/1 = -/TSW No. 0 system
b1: 0/1 = -/TSW No. 1 system

b7 b1 b0

➁

Clock status of No. 0 TSW

b7 b6 b2 b0

➂

Clock status of No. 1 TSW

Note:

Refer to the meaning of ➁.

b2: 0/1 = -/DTG output do wn
b6: 0/1 = -/External 32 ch Clock (PLO) No. 0 System down
b7: 0/1 = -/External 32 ch Clock (PLO) No. 1 System down

Reference: See Chapter 5, Section 5.3, for the repa ir procedure.

NDA-24300 CHAPTER 3

Page 57

Issue 1

SYSTEM MESSAGES

TSW Clock Failure

1-F

Default Alarm:

MJ

This message displays when the system detects a clock failure, such as TSW internal clock down or Frame
Head down, in one of the dual systems.

1: XXXX XX00 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

TSW card in which a fault is
detected

b0: 0/1 = -/TSW No. 0
b1: 0/1 = -/TSW No. 1 system

b7 b1 b0

➁

Clock status of No. 0 TSW

b7 b6 b2 b0

➂

Clock status of No. 1 TSW

Note:

Refer to the meaning of ➁.

b2: 0/1 = -/DTG output down
b6: 0/1 = -/External 32 ch Clock (PLO) No. 0 System down
b7: 0/1 = -/External 32 ch Clock (PLO) No. 1 System down

Reference: See Chapter 5, Section 5.4, for the repa ir procedure.

CHAPTER 3 NDA-24300
Page 58
Issue 1

SYSTEM MESSAGES

Both PLO Failure

1-O

Default Alarm:

MJ

This message displays when the system detects a fault, such as input clock all down or output clock down in
the PLO cards, at both sides.

1: XXXX XXXX XX00 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂ ➃ ➄

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

Detected PLO number

b7 b0

➁

Valid Information bit for Scan Data

1

b7 b6 b5 b4 b3 b2 b1 b0

➂

Valid Information bit for Scan Data

2

b7 b6 b5 b4 b3 b2 b1 b0

Reference: See Chapter 4, Section 2.3.2 and Section 2.3.4, for the cir cuit card replacement proce dure.

b0: 0/1 = No. 0 PLO/No. 1 PLO

b0-b7: Bit position corresponding to the detected information in Scan Data 1

( ) is flagged “1”.

➃

b0-b7: Bit position corresponding to the detected information in Scan Data 2

( ) is flagged “1”.

➄

NDA-24300 CHAPTER 3

Page 59

Issue 1

SYSTEM MESSAGES

➃

Scan Data 1: Current Status of PLO

card

b7 b6 b5 b4 b3 b2 b1 b0

➄

Scan Data 2: Current Status of PLO

card

b7 b4 b1 b0

b0: Clock status at time of detection

0/1 = STBY/ACT
b1: Circuit Card status at time of detection

0/1 = PLO synchronizing/PLO self runn in g or drift abnormal
b2: 0/1 = -/Input clock down
b3, b4:Route of Input clock

b4 b3 DCS Input Route Route Of Input Clock

00 0 0
01 1 1
10 - 2
11 - 3

b5: 0/1 = -/PLO input all down
b6: 0/1 = -/PLO output down
b7: 0/1 = -/Drifting

b0: 0/1 = -/5msec Burst Clock down
b1: 0/1 = -/Frame Synchronization from SY NC card is d ow n
b4: 0/1 = -/Internal OSC clock down

CHAPTER 3 NDA-24300
Page 60
Issue 1

SYSTEM MESSAGES

PLO Failure

1-P

Default Alarm:

MN

This message displays whe n the system detects all the fa ilures concerned with input clock down or output cloc k
down in the PLO card at the ACT side. Whe n this message is indicated, the PLO card changeover executes.

Default Grade:

3

Grade Modified: Lamp Modified:

Note:

The No. 0 PLO card automatically changes over to No. 1. The changeover of No. 1 to No. 0 is not
automatic.

1: XXXX XXXX XX00 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂ ➃ ➄

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

➀

Self-CPU Restart Information

b7 b0

➁

Valid Information bit for Scan Data

1

b0: 0/1 = No. 0 PLO/No. 1 PLO

b0-b7: Bit position corresponding to the detected information in Scan Data 1

( ) is flagged “1”.

➃

b7 b6 b5 b4 b3 b2 b1 b0

➂

Valid Information bit for Scan Data

2

b7 b6 b5 b4 b3 b2 b1 b0

Reference: See Chapter 4, Section 2.3.2 and Section 2.3.4, for the cir cuit card replacement proce dure.

b0-b7: Bit position corresponding to the detected information in Scan Data 2

( ) is flagged “1”.

➄

NDA-24300 CHAPTER 3

Page 61

Issue 1

SYSTEM MESSAGES

➃

Scan Data 1: Status of PLO card

b7 b6 b5 b4 b3 b2 b1 b0

➄

Scan Data: Status of PLO card

b7 b4 b1 b0

b0: Clock status at time of detection

0/1 = STBY/ACT
b1: Circuit card at time of detection

0/1 = PLO synchronizing/PLO self runn ing or dri ft ing
b2: 0/1 = -/Input clock down
b3, b4:Route of Input clock

b4 b3 DCS Input Route Route Of Input Clock

00 0 0
01 1 1
10 - 2
11 - 3

b5: 0/1 = -/PLO input all down
b6: 0/1 = -/PLO output down
b7: 0/1 = -/Drifting

b0: 0/1 = -/5msec Burst Clock down
b1: 0/1 = -/Frame Synchronization from SY NC card is d ow n
b4: 0/1 = -/Internal OSC clock down

CHAPTER 3 NDA-24300
Page 62
Issue 1

SYSTEM MESSAGES

Module Group Down Failure

1-S

Default Alarm:

MJ

This message displays when a fault of the speech path system has occurred in a specific Module Group. The
specific Module Group is placed into make-busy state.

1: XXXX XX00 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

MG number of fault detection

b0: 0/1 = Even-numbered MG/Odd-numbered MG

b7 b0

➁

Kind of failure

b0-b7: 00H/01H = -/ACT side TSW fault

b7 b6 b5 b4 b3 b2 b1 b0

➂

Speech Path/Clock System

b7 b1 b0

b0: ACT side speech path

0/1 = No. 0 system/No. 1 system
b1: ACT side clock

0/1 = No. 0 system/No. 1 system

Reference: See Chapter 4, Section 2.3.2, for the circuit card replacement procedure.

NDA-24300 CHAPTER 3

Page 63

Issue 1

SYSTEM MESSAGES

TSW ACT Change Report

1-T

Default Alarm:

NON

This message displays when the changeover of the TSW sys tem is exec ute d.

1: XXXX 0000 XXXX XXXX 2: 0000 0000 0000 0000 3: 0000 0000 XXXX XXXX

➀ ➁ ➂ ➃ ➄ ➅ ➆ ➇ ➈ ➉

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

➀

ACT side Speech Path (TSW) after
changeover

Default Grade:

2

b0: 0/1 = No. 0 system/No. 1 system

Grade Modified: Lamp Modified:

b7 b0

➁

Reason for changeover

b7 b6 b5 b4 b3 b2 b1 b0

b7-b4 b3-b0 Card Contents

01TSWI/O Alarm

2 32ch Clock down, FH down
3 24ch Clock down, FH down
6 TSW SW Memory write failure
9 I/O Alarm release

10 32ch Clock down recovered,

FH down recovered

11 24ch Clock down recovered,

FH down recovered
13 TSW MBR key OFF
15 TSW ACT/STBY changeov er by CMOD

command

6 1 MUX MUX circuit card Ready failure

2 MUX circuit card clock failure

CHAPTER 3 NDA-24300
Page 64
Issue 1

➅

➂~

➆~➉

Status of ACT side TSW card

b7 b6 b5 b4 b3 b2 b1 b0

Status of ST-BY side TSW card

b7 b6 b5 b4 b3 b2 b1 b0

SYSTEM MESSAGES

➂
➃
➄
➅

b0-b3, b4-b7: The status of TSW card in each MG (00~07)

➆
➇
➈
➉

MG00 MG01
MG02 MG03
MG04 MG05
MG06 MG07

b7-b4 b3-b0

0000 = Normal
0001 = Abnormal (Impossible to make links)

MG00 MG01
MG02 MG03
MG04 MG05
MG06 MG07

b7-b4 b3-b0

b0-b3, b4-b7: The status of TSW card in each MG (00~07)

0000 = Normal
0001 = Abnormal (Impossible to make links)

NDA-24300 CHAPTER 3

Page 65

Issue 1

SYSTEM MESSAGES

DLKC Data Transfer Failure (Permanent)

1-U

Default Alarm:

MN

This message displays when DLKC data transfer failure (temporary), shown in message [1-V], occurs more
than 16 times an hour. At this time, the faulty DLKC card is down and its switching network automatically
changes over.

1: XXXX XX00 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

System status of faulty DLKC card

b7 b0

➁

Error Code

b7 b6 b5 b4 b3 b2 b1 b0

➂

Details on Switching Network

b7 b1 b0

b0: 0/1 = No. 0 sy st e m / No. 1 system

01H: Firmware fault
02H: Data transfer time out to DLKC
03H: No answer time out (at DLKC)
04H: Data parity error

b0: Status of Speech Path System (including DLKC)

0/1 = No. 0 system is ACT/No . 1 system is ACT

b1: Status of ba sic clock

0/1 = No. 0 system is ACT/No . 1 system is ACT

CHAPTER 3 NDA-24300
Page 66
Issue 1

SYSTEM MESSAGES

DLKC Data Transfer Failure (Temporary)

1-V

Default Alarm:

SUP

This message displays when a data sending error or no answer error occurs at the time of data transfer from
CPU to DLKC card.

1: XXXX XX00 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

1

Grade Modified: Lamp Modified:

➀

System status of faulty DLKC card

b7 b0

➁

Error Code

b7 b6 b5 b4 b3 b2 b1 b0

➂

Details on Switching Network

b7 b1 b0

b0: 0/1 = No. 0 sy st e m / No. 1 system

01H: Firmware fault
02H: Data transfer time out to DLKC
03H: No answer time out (at DLKC)
04H: Data parity error

b0: Status of Speech Path System (including DLKC)

0/1 = No. 0 system is ACT/No. 1 system is ACT

b1: Status of basic clock

0/1 = No. 0 system is ACT/No. 1 system is ACT

b7: Information on Reset of STBY DLKC Note

0/1 = - /STBY DLKC card was reset

Note:

This data displays when the STBY DLKC card is detected as faulty.

NDA-24300 CHAPTER 3

Page 67

Issue 1

SYSTEM MESSAGES

PLO Restore

1-W

Default Alarm:

NON

This message displays when a fail ure such as internal clock down occurr ed to PLO is restored.

1: XXXX XX00 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁ ➂

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

➀

Restoration of PLO fault

Default Grade:

3

b0: 0/1 = PLO No. 0 system/PLO No. 1 sys tem

Grade Modified: Lamp Modified:

b7 b0

➁

Current Status of PLO card

b7 b6 b5 b4 b3 b2 b1 b0

b0: 0/1 = Clock is in STBY si de/ A CT side
b1: 0/1 = PLO synchronizing / PLO sel f running or drifting
b2: 0/1 = -/Input clock down
b3, b4:Route of input clock (see the table below)

b4 b3

0 0 No. 0 M-OSC Route 0
0 1 No. 1 M-OSC Route 1
10 – Route 2

b5: 0/1 = -/PLO input all down
b6: 0/1 = -/PLO output down
b7: 0/1 = -/Drifting

Connected With Primary

Oscillator (M-OSC)

–Route 3

Connected With

External Clock

➂

Current Status of PLO card

b7 b4 b1 b0

CHAPTER 3 NDA-24300
Page 68
Issue 1

b0: 0/1 = -/5msec clock down
b1: 0/1 = -/Frame Synchronization from SY NC card is d ow n
b4: 0/1 = -/Internal OSC clock down

SYSTEM MESSAGES

C-Level Infinite Loop (Permanent)

3-B

Default Alarm:

MN

This message displays when a C-level program abnormal state is detected as permanent. When the Port Mi­croprocessor (PM) on an LC/TRK c ard detects t he abnor mal sta te, the PM plac es the c ard int o make-b usy sta ­tus. If the failure occurs more tha n 15 times an hou r, th e syste m judges the failu re as perma nent and i ssues th e
this system message.

1: XX00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

Faulty Circuit Card Mounting
Location

b7 b6 b5 b4 b3 b2 b1 b0

b0-b4: Group
b5-b6: Unit (0-3)
b7: Module Group (0/1)

NDA-24300 CHAPTER 3

Page 69

Issue 1

SYSTEM MESSAGES

C-Level Infinite Loop (Temporary)

3-C

Default Alarm:

SUP

This message displays when C-level program is detec ted as abnormal by the Por t Microprocessor (PM) mount­ed on an LC/TR K card. If the fai lure o ccurs le ss than 15 times /hour , and a B-m onito r/Init ial resta rt exe cutes
as the result, the failure is judged as temporary and this message is created.

1: XX0X 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

1

Grade Modified: Lamp Modified:

➀

Faulty Circuit Card Mounting
Location

b7 b6 b5 b4 b3 b2 b1 b0

➁

PM Restart Type

b7 b0

Note:

B-monitor Restart: Ports whose link has already been established remain connected. Ports processing
a call-origination may be released.

Initial Res tart: All ports on the circuit card are forcibly released to be placed in id le state.

b0-b4: Group
b5-b6: Unit (0-3)
b7: Module Group (0/1)

b0: 0/1 = B-monitor/Initial Restart Note

CHAPTER 3 NDA-24300
Page 70
Issue 1

SYSTEM MESSAGES

Lock-Up Failure (Permanent)

3-D

Default Alarm:

MN

At the periodic interval, the CPU sends diagnosis data to the Port Microprocessor (PM) on LC/TRK cards in
order to monitor the PM. If th e CPU cannot receive the return data within a predetermined period of time, the
system displays this data. When the failure is detected more than 15 times per hour, the failure is judged as
permanent.

1: XX00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

3

Grade Modified: Lamp Modified:

➀

Faulty Circ uit Card Location

b7 b6 b5 b4 b3 b2 b1 b0

b0-b4: Group
b5-b6: Unit (0-3)
b7: Module Group

0/1 = Even-numbered MG/Odd-numbered MG

Reference: See Chapter 5, Section 6.2, for the repa ir procedure.

NDA-24300 CHAPTER 3

Page 71

Issue 1

SYSTEM MESSAGES

Lock-Up Failure (Temporary)

3-E

Default Alarm:

SUP

At the periodic interval, the CPU sends diagnosis data to the Port Microprocessor (PM) on LC/TRK cards in
order to monitor the PM. If th e CPU cannot receive the return data within a predetermined period of time, the
system displays this data. When the fai lure is det ected les s than 15 times per hour, the fa ilure is judged as tem­porary.

1: XX00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀ ➁

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

Default Grade:

1

Grade Modified: Lamp Modified:

➀

Faulty Circ uit Card Location

b7 b6 b5 b4 b3 b2 b1 b0

➁

PM Restart Type

b7 b0

b0-b4: Group
b5-b6: Unit (0-3)
b7: Module Group

0/1 = Even-numbered MG/Odd-numbered MG

b0: 0/1 = B-monitor/Initial Restart

CHAPTER 3 NDA-24300
Page 72
Issue 1

3-F

Default Alarm:

SUP

-48V Over Current

Default Grade:

3

SYSTEM MESSAGES

Grade Modified: Lamp Modified:

This message displ ays whe n over curre nt of the o perat ing powe r (DC-4 8V) is sup plied from t he ATI/ ELC cir ­cuit card to the Atten da nt Console/D

term

. When thi s fault occurs, the related circu it card is pl aced into ma ke-

busy state and stops supplying power.

1: XX00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➀

4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000

7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000

➀

Location of faulty PM

b7 b6 b5 b4 b3 b2 b1 b0

b0-b4: Group
b5, b6:Unit
b7: 0/1 = Even-numbered MG/Odd-numbered MG

NDA-24300 CHAPTER 3

Page 73

Issue 1