Nortel Meridian Meridian 1 Bedienungsanleitung

Meridian 1 Fault clearing

Meridian 1

Fault clearing

Document Number: 553-3001-510

Document Release: Standard 11.00

Date: June 1999

Year Publish FCC TM

Printed in the United States of America

Information is subject to change without notice. Nortel Networks Corporation reserves the right to make

changes in design or components as progress in engineering and manufacturing may warrant. This equipment

has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC

rules, and the radio interference regulations of Industry Canada. These limits are designed to provide

reasonable protection against harmful interference when the equipment is operated in a commercial

environment. This equipment generates, uses and can radiate radio frequency energy, and if not installed and

used in accordance with the instruction manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user

will be required to correct the interference at their own expense.

SL-1 and Meridian 1 are trademarks of Nortel Networks Corporation.

iii

Meridian 1 Fault clearing

Revision history

January 29, 1990 Standard, release 1.0.

February 28, 1990 Standard, release 2.0.

December 1,1991 Standard, release 3.0. This document was reissued to include technical

content updates.

December 31, 1992 Standard, release 4.0. This document was reissued to include hardware

required for X11 release 18 (option 81 is not included in this release).

April 1, 1994 Standard, release 5.0. This document was reissued to include information on

Meridian 1 options 61C and 81.

December 1994 Standard, release 6.0.This document is reissued toinclude information on the

Small systems Multi-Disk Unit (SMDU) and Meridian 1 option 51C.

Changes to technical content are noted by revision bars in the margins.

July 1995 Standard,release7.00.Thisdocumentisreissued toinclude informationfrom

the international NTP to make a global NTP, Meridian 1 option 81C, and

minor text edits. Changes are noted by revision bars in the margins.

December 1995 Standard, release 8.00. This document is reissued to include information on

NT9D19 Call Processor Card.

553-3001-510 Standard 11.00 June 1999

August 1996 Standard, release 9.00. This document is reissued for text edits. Due to the

extent of the changes, revision bars are not used.

October 1997 Standard, release 10.00. This document is reissued to include information on

the NT5D61 Input/Output Disk Unit with CD-ROM (IODU/C) card.

June 1999 Standard, release 11.00. This document is reissued for text edits.

Meridian 1 Fault clearing

Contents

About this document . . . . . . . . . . . . . . . . . . . . . . . 1

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

How to clear faults . . . . . . . . . . . . . . . . . . . . . . . . . 3

Fault clearing process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Using this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Fault indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

System messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Visual fault indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Maintenance display codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

User reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Accessing the system . . . . . . . . . . . . . . . . . . . . . . . 13

Access through the system terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Access through the maintenance telephone . . . . . . . . . . . . . . . . . . . . . 15

Clearing power faults . . . . . . . . . . . . . . . . . . . . . . . 19

Power faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Fault clearing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Main circuit breaker and all LEDs off (option 21A) . . . . . . . . . . . . . . 27

Main circuit breaker on but all LEDs off (option 21A) . . . . . . . . . . . . 28

Green LED off on module power supply (option 21A) . . . . . . . . . . . . 29

Circuit breakers and all column LEDs off (DC power) . . . . . . . . . . . . 30

Circuit breakers on but all column LEDs off (DC power) . . . . . . . . . . 32

vi Contents

553-3001-510 Standard 11.00 June 1999

Green LED off on module power supply (DC power) . . . . . . . . . . . . 33

Defective blower unit indicated (DC power) . . . . . . . . . . . . . . . . . . . . 35

Main circuit breaker and all column LEDs off (AC power) . . . . . . . . 36

Main circuit breaker on but all column LEDs off (AC power) . . . . . . 38

Breaker off on MPDU (AC power) . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Green LED off on module power supply (AC power) . . . . . . . . . . . . 41

Defective blower unit indicated (AC power) . . . . . . . . . . . . . . . . . . . . 43

Clearing common equipment faults . . . . . . . . . . . 45

Common equipment faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Fault clearing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Call processing stopped (options 21A and 21) . . . . . . . . . . . . . . . . . . 49

Call processing stopped (option 21E) . . . . . . . . . . . . . . . . . . . . . . . . . 51

Fault indicated on memory/peripheral signaling card

(options 21A and 21) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Fault indicated on MSPS card (option 21E) . . . . . . . . . . . . . . . . . . . . 55

Fault indicated on the CPU card (options 21A and 21) . . . . . . . . . . . . 56

Fault indicated on the ICM card (option 21E) . . . . . . . . . . . . . . . . . . . 58

Call processing stopped (option 51) . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Fault indicated on memory card (option 51) . . . . . . . . . . . . . . . . . . . . 63

Fault indicated on a common equipment card (option 51) . . . . . . . . . 65

Call processing stopped (options 61 and 71) . . . . . . . . . . . . . . . . . . . . 68

Fault indicated on a memory card (options 61 and 71) . . . . . . . . . . . . 71

Fault indicated on a common equipment card

(options 61 and 71) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Fault indicated on a common equipment card

(options 51C, 61C, 81, and 81C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Floppy disk unit not operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Multi Drive Unit or Small System Multi Drive Unit not operating . . . 82

Core Multi Disk Unit not operating . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

IOP/CMDU not operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Contents vii

Meridian 1 Fault clearing

IODU/C not operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Clearing network equipment faults . . . . . . . . . . . . 93

Network equipment faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Fault clearing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Disabled loop indicated by OVD message

(NT1P61 Fibre Superloop Network Card) . . . . . . . . . . . . . . . . . . . . . . 97

Disabled loop indicated by OVD message

(NT7R51 Local Carrier Interface Card) . . . . . . . . . . . . . . . . . . . . . . . . 99

Disabled loop indicated by OVD message

(NT8D04 Superloop Network Card) . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Loop disabled without OVD message

(NT8D04 Superloop Network Card) . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Disabled loop indicated by OVD message

(QPC414 Network Card) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Loop disabled without OVD message

(QPC414 Network Card) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Disabled peripheral signaling card indicated by OVD message . . . . . 111

Peripheral signaling card disabled without OVD message . . . . . . . . . 113

Problems with transferring, placing conference calls,

or Music-on-Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Problems placing calls on 2500 telephones and some trunks . . . . . . . 117

Clearing peripheral equipment faults . . . . . . . . . . 119

Peripheral equipment faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Fault clearing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Red LED lit on Fibre Peripheral Controller card . . . . . . . . . . . . . . . . . 122

Red LED lit on Remote Carrier Interface card . . . . . . . . . . . . . . . . . . 124

Red LED lit on Peripheral Controller card . . . . . . . . . . . . . . . . . . . . . . 126

Red LED lit on dual loop peripheral buffer card . . . . . . . . . . . . . . . . . 128

Disabled peripheral equipment card . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

More than one peripheral equipment card disabled . . . . . . . . . . . . . . . 132

viii Contents

553-3001-510 Standard 11.00 June 1999

Clearing trunk faults . . . . . . . . . . . . . . . . . . . . . . . . 135

Trunk faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Fault clearing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Trunk cannot make or receive calls

(OVD message received) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Trunk cannot make or receive calls (no OVD message) . . . . . . . . . . . 142

Clearing attendant console faults . . . . . . . . . . . . . 145

Attendant console faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Fault clearing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Console cannot make or receive calls (OVD message received) . . . . 148

Console cannot make or receive calls (no OVD message) . . . . . . . . . 150

Indicator or digit display not functioning properly . . . . . . . . . . . . . . . 152

Operator cannot hear or be heard properly . . . . . . . . . . . . . . . . . . . . . 154

Clearing telephone faults . . . . . . . . . . . . . . . . . . . . 157

Telephone faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Fault clearing procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Telephone cannot make or receive calls (OVD message received) . . . 160

Telephone cannot make or receive calls (no OVD message) . . . . . . . 162

One end cannot hear or be heard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Noise or low volume on all calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Defective indicator, digit display, or component . . . . . . . . . . . . . . . . . 168

Defective feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Defective add-on module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Cannot dial from 2500 telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

No ring on 500 and 2500 telephones . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Final maintenance procedure . . . . . . . . . . . . . . . . 177

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Contents ix

Meridian 1 Fault clearing

List of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

xContents

553-3001-510 Standard 11.00 June 1999

Andere Handbücher für Meridian Meridian 1

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