Viavi 8100 V2 Series, MTS 8000, T-BERD 8000, T-BERD 6000A V2, MTS 6000A V2 User Manual

8100 V2 Modules Series

Portable, modular platform
designed for the construction,
validation and maintenance of
optical fiber networks

User Manual

8100 V2 Modules Series

Portable, modular platform designed
for the construction, validation and
maintenance of optical fiber networks

User Manual

Viavi Solutions
1-844-GO-VIAVI

www.viavisolutions.com

iv User Manual XXXXXXXXX Rev. ???

Notice

Every effort was made to ensure that the information in this document was
accurate at the time of printing. However, information is subject to change
without notice, and Viavi reserves the right to provide an addendum to this
document with information not available at the time that this document was
created.

Copyright

© Copyright 2016 Viavi, LLC. All rights reserved. Viavi, Enabling Broad­band and Optical Innovation, and its logo are trademarks of Viavi, LLC. All
other trademarks and registered trademarks are the property of their
respective owners. No part of this guide may be reproduced or transmitted
electronically or otherwise without written permission of the publisher.

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Microsoft, Windows, Windows CE, Windows NT, MS-DOS, Excel, Word
and Microsoft Internet Explorer are either trademarks or registered trade­marks of Microsoft Corporation in the United States and/or other countries.

Specifications, terms, and conditions are subject to change without notice.
All trademarks and registered trademarks are the property of their respec­tive companies.

Manual

This guide is a product of Viavi's Technical Information Development
Department. This manual gives you the main information to install, start
and use the 8100 Module Series.

User Manual 78000010220 Rev. 023 v

WEEE Directive Compliance

Viavi has established processes in compliance with the Waste Electrical
and Electronic Equipment (WEEE) Directive, 2002/96/EC, and the Battery
Directive, 2006/66/EC.

This product, and the batteries used to power the product, should not be
disposed of as unsorted municipal waste and should be collected sepa­rately and disposed of according to your national regulations. In the Euro­pean Union, all equipment and batteries purchased from Viavi after 2005­08-13 can be returned for disposal at the end of its useful life. Viavi will
ensure that all waste equipment and batteries returned are reused, recy­cled, or disposed of in an environmentally friendly manner, and in compli­ance with all applicable national and international waste legislation.

It is the responsibility of the equipment owner to return equipment and
batteries to Viavi for appropriate disposal. If the equipment or battery was
imported by a reseller whose name or logo is marked on the equipment or
battery, then the owner should return the equipment or battery directly to
the reseller.

Instructions for returning waste equipment and batteries to Viavi can be
found in the Environmental section of Viavi’s web site at www.viavisolu-

tions.com. If you have questions concerning disposal of your equipment or

batteries, contact Viavi’s WEEE Program Management team.

vi User Manual 78000010220 Rev. 023

Table of Contents

About this guide xxix

Purpose and scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxx

Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxx

Technical assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxx

Recycling Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxx

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxi

Chapter 1 Principles of measurement 1

Principle of reflectometry measurements . . . . . . . . . . . . . . . . . . . . . . . . . 2

Information yielded by the measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Validity of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Reflectance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Principle of bi-directional measurement . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Principle of the optical power and attenuation measurements . . . . . . . 6

Power measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Attenuation measurements (optical link loss) . . . . . . . . . . . . . . . . . . . . . . . . 6

PMD principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Method used to measure the PMD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Principle of measurement of Chromatic Dispersion (CD ODM) using

phase shift method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Standards and l0 for different types of fiber . . . . . . . . . . . . . . . . . . . . . . 11

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Table of Contents

Chapter 2 Getting started 13

Unpacking the device - Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Installing a module in a receptacle and removing it . . . . . . . . . . . . . . . 14

Inserting a module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Removing a module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Connecting fiber optic cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Inspecting and cleaning connector end faces . . . . . . . . . . . . . . . . . . . . . . . 16

Optical connector types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Connecting Fiber optic cable to test port . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Optical connectors and interchangeable adapters . . . . . . . . . . . . . . . . 20

Adapter types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Switching adapter type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Cleaning the universal connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Display screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Top status bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Mini-trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Signature of the measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Main display zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Soft keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Selection keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Chapter 3 Reflectometry measurements 27

Activating the OTDR function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Selecting the Smart Test function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Principle of the Smart Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Selecting Smart Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Selecting the Expert OTDR function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Principle of the Expert OTDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Selecting Expert OTDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Configuring the reflectometry test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Configuring the unit for Smart Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Selecting the configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Modifying some parameters before the acquisition . . . . . . . . . . . . . . . . . . . 32

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Table of Contents

Configuring the test in Expert OTDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Configuring the Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Configuring the Alarms parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Configuring the Analysis parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Configuring the Link parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Configuring the File parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Configuration in Test Auto mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Saving OTDR configuration in a file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Loading an existing OTDR configuration file . . . . . . . . . . . . . . . . . . . . . . . . 62

Traffic Detection and connection quality indicator . . . . . . . . . . . . . . . . 64

Traffic Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Connection Quality indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Performing OTDR acquisitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Acquisition in Real Time mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Principle of Real Time mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Performing an acquisition in Real Time mode . . . . . . . . . . . . . . . . . . . . . . . 66

Stopping the real time acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

Performing a measurement with Smart Test . . . . . . . . . . . . . . . . . . . . . . . . 67

Performing an acquisition with Expert OTDR . . . . . . . . . . . . . . . . . . . . . . . 69

Performing an acquisition from Results page . . . . . . . . . . . . . . . . . . . . . . . 70

Multi-wavelength acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Actions on trace during acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Results display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Common functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Display of events on the trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Results table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Cursors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Zoom function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Shift function (Expert OTDR only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Display of traces in overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Traces display in double acquisition mode . . . . . . . . . . . . . . . . . . . . . . . . . 90

Advanced functions in Expert OTDR mode . . . . . . . . . . . . . . . . . . . . . . 91

Automatic measurement and detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Addition of events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Relative measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Modifying types of events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Table notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

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Manual measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Measurements of slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Measurement of ORL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Measurement of Reflectance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Splice measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Memorization of the position of events . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Overlay trace function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Overlaying several traces stored in memory . . . . . . . . . . . . . . . . . . . . . . . 106

Display of traces in overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Adding traces in overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Swapping overlay traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Changing the traces position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Removing a trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Quitting the overlay menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Reference Trace function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Using the reference trace function in the Result page . . . . . . . . . . . . . . . . 109

Using the reference trace function in the explorer . . . . . . . . . . . . . . . . . . . 110

Saving the trace(s) and generating a report . . . . . . . . . . . . . . . . . . . . . 111

Saving results and creating a report from results page . . . . . . . . . . . . . . . .111

Opening a report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Recalling OTDR files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

SLM (Smart Link Mapper) option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Show the detailed information of one event . . . . . . . . . . . . . . . . . . . . . . . 118

Event View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Changing the type of an event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120

OptiPulses option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Configuring the OTDR acquisition with OptiPulses mode . . . . . . . . . . . . . 122

Results in OptiPulses mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

FTTA-SLM option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Principle of FTTA-SLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Acceptance Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Troubleshooting Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Configuring the Reflectometry test for FTTA network . . . . . . . . . . . . . . . . 128

FTTA setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Alarms parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Link description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

File parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

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Launching the acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Results page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Trace View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

SmartLink view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Changing the name of an event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145

FTTH-SLM Software option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Principle of FTTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Configuring the Reflectometry test for FTTH network . . . . . . . . . . . . . . . . 147

FTTH setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Alarms parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Link parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

File parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Launching the acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Results page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Trace View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

SmartLink view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Changing the type of an event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162

Smart Link Cable Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Principle of Smart Link Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Configuring the Smart Link Cable project . . . . . . . . . . . . . . . . . . . . . . . . . 165

Configuring the project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Saving the project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Loading an existing project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Starting project test process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Trace saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Results of project cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Description of the table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Deactivate the fiber test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

View Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Files and Project storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Text file content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Chapter 4 Reduced Dead Zone OTDR application 175

Description of the RDZ function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Selecting and configuring the RDZ function . . . . . . . . . . . . . . . . . . . . . 176

Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

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Performing the measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Performing an acquisition from Results page . . . . . . . . . . . . . . . . . . . . . . 180

Results display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

SLM view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Saving the trace(s) and generating a report . . . . . . . . . . . . . . . . . . . . . 184

Saving results and creating a report from results page . . . . . . . . . . . . . . . 185

Opening a report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Chapter 5 Power meter and Source functions of the OTDR Modules

191

Connection to the power meter and the source . . . . . . . . . . . . . . . . . . 192

Configuring the Power meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Configuring the measurement parameters of the power meter . . . . . . . . . 192

Configuring the alarm parameters of the power meter . . . . . . . . . . . . . . . 193

Configuring the Measurement parameters . . . . . . . . . . . . . . . . . . . . . . . . 194

Activating the Source function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Result page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Result page of the Power meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

Table of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

Commands of the power meter parameters . . . . . . . . . . . . . . . . . . . . . . . 197

Result page of the Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Performing the power level measurement . . . . . . . . . . . . . . . . . . . . . . 200

Performing the insertion loss measurement . . . . . . . . . . . . . . . . . . . . 200

Setting the zero value of the power meter . . . . . . . . . . . . . . . . . . . . . . . . 201

Carrying out the reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Carrying out the side by side reference . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Carrying out the reference in loopback mode . . . . . . . . . . . . . . . . . . . . . . 203

Measurements on the fiber under test . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Storing and reloading results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

File Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

Storing results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

Loading results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

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Chapter 6 Bi-directional OTDR 207

Definition of terms used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Description of the measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Summary of the automatic operation procedure . . . . . . . . . . . . . . . . . . . . 210

Configuration of bi-directional measurement . . . . . . . . . . . . . . . . . . . . 210

Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Alarms parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Configuration of files parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Performing a bi-directional measurement . . . . . . . . . . . . . . . . . . . . . . . 213

Process Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Fiber link check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Measurement process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Trace display functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Origin and End traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

OEO trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

OEO Result table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Automatic measurement and addition of markers in OEO page . . . . 222

Key Delete/Auto Meas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Addition of markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Markers display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Test of a cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Saving the traces and generating a report . . . . . . . . . . . . . . . . . . . . . . 224

Saving results and creating a report from results page . . . . . . . . . . . . . . . 224

Opening a report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Recalling OEO traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Warning/errors after pressing the key START . . . . . . . . . . . . . . . . . . 229

Warning/errors resulting from common configurations . . . . . . . . . . . . . . . 230

Chapter 7 FiberComplete Modules 231

General introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Activating the function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

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Establishing References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Reference stage process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Loopback Referencing method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Side-by-Side referencing method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

Factory References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Configuring the units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

Alarms parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

Analysis parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

Link parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

File parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Automatic configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Saving parameters from configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Loading a configuration file FiberComplete . . . . . . . . . . . . . . . . . . . . . . . . 250

Performing the tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Sending a message to the distant Platform . . . . . . . . . . . . . . . . . . . . . . . 251

Starting the test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

Results screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Cable view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Fiber View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Fault Finder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

OTDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Saving results and generating a report . . . . . . . . . . . . . . . . . . . . . . . . . 258

Saving results and creating a report from results page . . . . . . . . . . . . . . . 258

Opening a report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

File management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Storing results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Filenaming convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Chapter 8 Optical Spectrum Measurement 263

Laser safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Cleaning of Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Configuration of the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

OSA optical spectrum analyzer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 267

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Loading a configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Acquisition Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

Analysis parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275

Channel Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .275

OSNR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Splitter compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

Display Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Zoom Mode (OSA-500) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

Zoom Mode (OSA-110) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Table Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Saving configuration in a file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293

Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Trace display functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Display of the WDM / OSA results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Display functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296

Zoom function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296

Cursors function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297

Full scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298

Shift function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298

Trace /Table key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299

Channel detection threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

Display of a grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

Display of total power between cursors . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

Display of gain Tilt (delta) and gain slope results . . . . . . . . . . . . . . . . . . . 301

Overlay trace function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302

Overlaying several traces stored in memory . . . . . . . . . . . . . . . . . . . . . . . 303

Overlaying the current trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

Display of traces in overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

Swapping overlay traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

Changing the traces position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

Trace resulting from the difference between two traces . . . . . . . . . . . . . . 305

Removing a trace in overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

Quitting the overlay menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306

Table of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306

Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306

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Type of display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

On/Off-OSNR Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Challenge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Principle of "On/Off-OSNR Measurement" . . . . . . . . . . . . . . . . . . . . . . . . 308

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Channel filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Field of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

Using channel filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Drift measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

EDFA results analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

EDFA test configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

EDFA measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

EDFA results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

DFB results analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

DFB test configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

DFB measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

DFB results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Testing ROADM networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Measurement of I-OSNR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

Pre-setting the OSA for an in-band OSNR measurement in I-OSNR mode . .
323

Performing an in-band OSNR test in I-OSNR mode . . . . . . . . . . . . . . . . . 327

File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Storing OSA measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Recalling OSA files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Chapter 9 Polarization Mode Dispersion Measurement 329

Recommended equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

PMD Activation and self calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

Loading a configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

Setup menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

Alarms parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

Analysis parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

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Saving configuration in a file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

Performing a PMD measurement with a PMD test module . . . . . . . . . 339

Remote operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

Local operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Performing a High Resolution PMD measurement . . . . . . . . . . . . . . . . 341

Selecting the HR-PMD function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

Performing the reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342

Performing the measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

Display of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Spectrum/FFT menu key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Display of PMD results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

Cursors, in spectrum display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347

Zoom access, in spectrum display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Trace shift access, in spectrum display . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Statistics results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Table of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349

Graphics display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349

Information messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350

Saving the trace and generating a report . . . . . . . . . . . . . . . . . . . . . . . 351

Saving results and creating a report from results page . . . . . . . . . . . . . . . 351

Opening the report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

Saving PMD results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

Recalling PMD files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

PMD standards and limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

Chapter 10 I-PMD Measurement 357

Recommended equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

I-PMD Activation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Activating the IPMD function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Loading a configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

Analysis parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

OSNR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

Splitter Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

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Saving configuration in a file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

Performing a Zero Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

Performing an In-Band PMD-OSNR measurement with an I-PMD Module
367

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Detection of Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

In band PMD-OSNR measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

Display of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

OSA Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

OSA menu key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

Moving the cursors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Zoom on trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Trace shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Channel key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .374

Advanced key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

PMD results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

Performing a PMD Measurement with BBS and IPMD Module . . . . . . 376

Remote operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377

Local operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377

Display of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378

Functions on trace display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Saving results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Recalling files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

PMD standards and limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

Chapter 11 High Resolution OSA Measurement 383

Cleaning of Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Configuration of the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Loading a configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

OSA optical spectrum analyzer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Acquisition Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388

Analysis parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Saving configuration in a file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

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Trace display functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

Display of the WDM / OSA results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

Display functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

Zoom function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

Cursors function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

Full scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Shift function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Trace /Table key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Channel detection threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400

Display of total power between cursors . . . . . . . . . . . . . . . . . . . . . . . . . . . 400

Overlay trace function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401

Overlaying several traces stored in memory . . . . . . . . . . . . . . . . . . . . . . . 401

Overlaying the current trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402

Display of traces in overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402

Swapping overlay traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

Changing the traces position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

Trace resulting from the difference between two traces . . . . . . . . . . . . . . 403

Removing a trace in overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

Quitting the overlay menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

Table of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

On/Off-OSNR Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407

Challenge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407

Principle of "On/Off-OSNR Measurement" . . . . . . . . . . . . . . . . . . . . . . . . 407

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407

Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409

DFB results analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410

DFB test configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410

DFB measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410

DFB results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411

File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413

Storing HR-OSA measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413

Recalling HR-OSA files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413

Chapter 12 Attenuation profile 415

Recommended equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416

AP Activation and self calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416

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Loading a configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416

Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417

Test Auto configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418

Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418

Acquisition band (with 81DISPAP modules) . . . . . . . . . . . . . . . . . . . . . . . 418

Averaging acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Last Reference / BBS Type / BBS Serial Number . . . . . . . . . . . . . . . . . . . 420

Analysis parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421

Saving configuration in a file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422

AP Reference Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423

Performing the reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423

Saving a reference measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426

Loading existing reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426

Performing a AP measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

Display of AP results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Trace display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Spectrum/Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429

Zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

Trace shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

Cursor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431

Wavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431

Results table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431

Saving the trace and generating a report . . . . . . . . . . . . . . . . . . . . . . . 433

Saving results and creating a report from results page . . . . . . . . . . . . . . . 433

Opening a report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436

Saving Attenuation Profile measurements . . . . . . . . . . . . . . . . . . . . . . . . 436

Recalling AP files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

Chapter 13 CD measurements using phase shift method 439

CD activation and self calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440

Configuring the CD test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440

Loading a configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

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Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443

Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443

Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

Alarms parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

Analysis parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445

Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445

Displ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ay 447

Saving configuration in a file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448

CD Reference measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449

Performing the reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449

Saving a reference measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452

Loading existing reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452

Performing a CD Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453

Performing a CD measurement through amplifiers . . . . . . . . . . . . . . . 454

Display of CD results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455

General display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455

Functions available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456

Delay / Dispersion / Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456

Trace/Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456

Cursor, Zoom and Shift functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458

Wavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 459

Saving the trace and generating a report . . . . . . . . . . . . . . . . . . . . . . . 459

Saving results and creating a report from results page . . . . . . . . . . . . . . . 459

Opening a report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461

File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463

Storing CD measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463

Recalling reference or CD measurement files . . . . . . . . . . . . . . . . . . . . . 464

Chapter 14 Broadband source BBS 465

Function of the BBS module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 466

Activation process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 466

Remote interlock connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 468

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Chapter 15 Multi Test Access Unit 469

Function of the MTAU module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471

Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472

Auto mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472

Chapter 16 Fiber Characterization 475

Inspect and clean connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476

Connect the test modules to the MTAU . . . . . . . . . . . . . . . . . . . . . . . . . 476

Referencing the test functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478

Inspect and clean connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479

IL/ORL referencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479

IL/ORL referencing with the integrated FiberComplete® solution . . . . . . .479

ORL and side by side IL Referencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480

Perform ORL and Loopback IL Referencing . . . . . . . . . . . . . . . . . . . . . . . 482

AP and CD referencing with FC2 Test Kit . . . . . . . . . . . . . . . . . . . . . . . . . 482

Activate the CD or AP function on T-BERD/MTS 8000 V2 . . . . . . . . . . . . 483

Activate the BBS Source on T-BERD/MTS 6000 . . . . . . . . . . . . . . . . . . . .484

Perform the CD/AP referencing on T-BERD/MTS 8000 V2 . . . . . . . . . . . . 484

AP and CD referencing with FC1 Test Kit . . . . . . . . . . . . . . . . . . . . . . . . . 485

Activate the AP/CD function on the T-BERD/MTS 8000 V2 . . . . . . . . . . .486

Activate the AP/CD mode of the OBS5x0 . . . . . . . . . . . . . . . . . . . . . . . . . 486

Perform the AP / CD referencing on the T-BERD/MTS 8000 V2 . . . . . . . . 486

Fiber Characterization Test Sequence in Manual mode . . . . . . . . . . . . 487

Fiber Characterization with FC1 Test Kit (Unidirectional) . . . . . . . . . . . . . 487

Getting started with the "Link Characterization" Script . . . . . . . . . . . . . . . 488

Define the Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488

Define the Job Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489

Define the Link Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489

Configuring the “Results” Summary table . . . . . . . . . . . . . . . . . . . . . . . . . 490

Start the test sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491

OBS-500/550 LightSource Operation for Fiber Characterization Testing . 492

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Fiber Characterization with FC2 Test Kit (Bi-dir.) . . . . . . . . . . . . . . . . . . . 493

Activating the test functions on T-BERD/MTS 8000 V2 . . . . . . . . . . . . . . . 493

Activating the test functions on T-BERD/MTS 6000A V2 . . . . . . . . . . . . . . 493

Creating the storage directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494

Setting the test parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495

Defining the filenaming and fiber description . . . . . . . . . . . . . . . . . . . . . . 497

Starting a test sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497

Testing next fiber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 499

Fiber Characterization Automated Test Sequence using the Link

Characterization Script . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500

Fiber Characterization with FC1 Test Kit (Unidirectional) . . . . . . . . . . . . . 500

Selecting data storage directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500

Launching the Link Characterization script . . . . . . . . . . . . . . . . . . . . . . . . 501

Configuring the Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 501

Configuring the Job Type & Link Description . . . . . . . . . . . . . . . . . . . . . . . 501

Configuring the “Results” Summary table . . . . . . . . . . . . . . . . . . . . . . . . . 502

Starting a test sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503

Fiber Characterization with datalink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

Connecting the Optical Talkset and Datalink . . . . . . . . . . . . . . . . . . . . . . . 504

Setting the OTDR/IL/ORL Pass/Fail criteria . . . . . . . . . . . . . . . . . . . . . . . 505

Selecting data storage directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506

Launching the Link Characterization script . . . . . . . . . . . . . . . . . . . . . . . . 506

Configuring the test sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 507

Configuring the Job Type & Link Description . . . . . . . . . . . . . . . . . . . . . . . 508

Configuring the “Results” Summary table . . . . . . . . . . . . . . . . . . . . . . . . . 508

Starting a test sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 509

Testing next fiber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 510

Fiber Characterization - No datalink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511

Setting the OTDR/IL/ORL Pass/Fail criteria . . . . . . . . . . . . . . . . . . . . . . . 511

Selecting data storage directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512

Launching the Link Characterization script . . . . . . . . . . . . . . . . . . . . . . . . 512

Configuring the test sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 513

Configuring the Job Type & Link Description . . . . . . . . . . . . . . . . . . . . . . . 514

Configuring the “Results” Summary table . . . . . . . . . . . . . . . . . . . . . . . . . 515

Starting a test sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515

Testing next fiber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 518

Results display and saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 518

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Chapter 17 OFI Module 521

OFI module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522

Selection of the OFI module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522

LTS function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522

Connections to the power meter and the source . . . . . . . . . . . . . . . . . . . 522

Configuring the LTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523

Configuring the measurement parameters of the power meter . . . . . . . . . 523

Configuring the alarm parameters of the power meter . . . . . . . . . . . . . . . 525

Configuring and displaying the parameters of the source . . . . . . . . . . . . . 526

Display of results and command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527

Result of the measurement in progress . . . . . . . . . . . . . . . . . . . . . . . . . . . 528

Table of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 528

Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .529

Making a measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530

Power measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530

Optical link loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531

FOX Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 532

Configuration of the FOX automatic measurement . . . . . . . . . . . . . . . . . . 532

Acquisition parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533

Results screen parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533

File Storage parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534

Establishing a reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535

Establishing a reference for loss measurement . . . . . . . . . . . . . . . . . . . . 535

Taking a side by side reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536

Taking the reference in a loop-back mode . . . . . . . . . . . . . . . . . . . . . . . . .537

Establishing a reference for an ORL measurement . . . . . . . . . . . . . . . . . 538

ORL Emitted power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

ORL Zero adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

Measurement acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 540

Choosing the fiber to be tested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541

Making the measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542

Identifying the distant module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542

Displaying results for a FOX automatic measurement . . . . . . . . . . . . . . . 543

Sending a message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544

Manual ORL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546

Establishing a reference for an ORL manual measurement . . . . . . . . . . . 546

Measurement acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 547

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Making the measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 547

Display of results for an ORL manual measurement . . . . . . . . . . . . . . . . . 548

Generating a pdf report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549

Creating a report from results page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549

Opening a report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549

File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 551

Storing results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 551

Recalling files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 552

Chapter 18 Macros 553

Calling the Macro function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 554

Macro recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 554

Standard macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 555

File macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 556

Adding interaction to your macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 556

Inserting a dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557

Inserting a message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557

Inserting a pause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557

Renaming a macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 558

The «Overwrite Config.» setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 558

Replacing a macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559

Removing a macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559

Default macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559

Using the default macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559

Setting a macro as default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559

Macro playback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 560

Storing a macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 562

Chapter 19 File management 563

Description of the explorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564

Opening the file explorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564

Managing tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 565

File signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 565

Buttons on the right of the screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 567

Storage media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 567

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Directory and files editing function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .568

Saving and loading files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .568

Saving Files from the Explorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .568

Loading files and displaying traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .569

Simple loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 570

Load with configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 570

Loading several traces in overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 570

Exporting files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .571

Explorer/Link Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .571

Editing function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573

Exporting a directory in a txt file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .573

Generating pdf report(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .575

Using the Merge key, with the txt/pdf files . . . . . . . . . . . . . . . . . . . . . . . . .576

Sending files by e-mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .577

Chapter 20 Technical specifications 579

OTDR Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .580

OTDR measurements characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .580

OTDR size and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .582

B, C & D Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .582

A Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .585

CWDM Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .586

UHR Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .587

Distance Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .588

Ranges for OTDR Module A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 588

Ranges for OTDR Module B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 589

Ranges for OTDR Module C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 589

Ranges for OTDR Module D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 590

Ranges for UHR modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 590

Ranges for CWDM modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591

I-PMD and HR OSA Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .591

Dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593

ODM Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593

ODM MR Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .595

High Resolution Dispersion test solution . . . . . . . . . . . . . . . . . . . . . . .596

Dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .598

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BBS Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 598

MTAU modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 599

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 599

Chapter 21 Options and accessories 601

References of measurement modules . . . . . . . . . . . . . . . . . . . . . . . . . . 602

OTDR Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 602

OTDR CWDM Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 605

PMD / I-PMD / HR OSA Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 606

ODM Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 607

ODM MR Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 607

BBS Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 607

MTAU Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608

User manual references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608

References of optical connectors and adapters . . . . . . . . . . . . . . . . . . 608

References of result processing software . . . . . . . . . . . . . . . . . . . . . . 610

Appendix A RoHS Information 611

Concerned products: 8100 V2 modules series . . . . . . . . . . . . . . . . . . . 612

Concerned products: OTDR 8100 V2 Modules Series . . . . . . . . . . . . . 613

Concerned products: OTDR VLR 8100 V2 Modules Series . . . . . . . . . 614

Concerned products: PMD 8100 V2 Modules Series . . . . . . . . . . . . . . 615

Index 617

User Manual 78000010220 Rev. 023 xxvii

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xxviii User Manual 78000010220 Rev. 023

About this guide

The MTS/TBERD series of Viavi provides a portable, modular platform
designed for the construction, validation and maintenance of optical fiber
networks.

The modules described in this document are applicable for the following
platforms:

• MTS 8000

• T-BERD 8000

• MTS 6000A V2

• T-BERD 6000A V2

The topics discussed in this chapter are as follows:

• “Purpose and scope” on page xxx

• “Assumptions” on page xxx

• “Technical assistance” on page xxx

• “Recycling Information” on page xxx

• “Conventions” on page xxxi

xxix

User Manual 78000010220 Rev. 023

About this guide

Purpose and scope

Purpose and scope

The purpose of this guide is to help you successfully use the MTS / T-BERD
features and capabilities. This guide includes task-based instructions that
describe how to install, configure, use, and troubleshoot the Product Name/
Family Brand. Additionally, this guide provides a complete description of
Viavi’s warranty, services, and repair information, including terms and
conditions of the licensing agreement.

Assumptions

This guide is intended for novice, intermediate, and experienced users who
want to use the Product Name/Family Brand effectively and efficiently. We
are assuming that you are familiar with basic telecommunication concepts
and terminology.

Technical assistance

If you require technical assistance, call 1-844-GO-VIAVI. For the latest
TAC information, go to http://www.viavisolutions.com/en/services-and-

support/support/technical-assistance.

Recycling Information

Viavi recommends that customers dispose of their instruments and periph­erals in an environnmentally sound manner. Potential methods include
reuse of parts or whole products and recycling of products components,
and/or materials.

xxx User Manual 78000010220 Rev. 023

Waste Electrical and electronic Equipment (WEEE)
Directive

In the European Union, this label indicates that this product
should not be disposed of with household waste. Il should be
deposited at an appropriate facility to enable recovery and recy­cling.

Conventions

This guide uses naming conventions and symbols, as described in the
following tables.

Tab l e 1 Typographical conventions

Description Example

About this guide

Conventions

xxxi

User interface actions appear in this

typeface.

Buttons or switches that you press on a
unit appear in this T

YPEFACE.

Code and output messages appear in

On the Status bar, click

Start

Press the ON switch.

All results okay

this typeface.

Text you must type exactly as shown
appears in this typeface.

Type: a:\set.exe in the
dialog box.

Variables appear in this typeface. Type the new hostname.

Book references appear in this typeface. Refer to Newton’s Tele-

com Dictionary

A vertical bar | means “or”: only one

platform [a|b|e]

option can appear in a single command.

User Manual 78000010220 Rev. 023

About this guide

Conventions

Table 1 Typographical conventions (Continued)

Description Example

Square brackets [ ] indicate an optional
argument.

Slanted brackets < > group required

login [platform
name]

<password>

arguments.

Table 2 Keyboard and menu conventions

Description Example

A plus sign + indicates simultaneous

Press Ctrl+s

keystrokes.

A comma indicates consecutive key

Press Alt+f,s

strokes.

A slanted bracket indicates choosing a
submenu from menu.

On the menu bar, click

Start > Program Files.

Table 3 Symbol conventions

CAUTION

This symbol represents a general hazard.

DANGER

This symbol represents a risk of electrical shock

xxxii User Manual 78000010220 Rev. 023

NOTE

This symbol represents a Note indicating related information or
tip.

This symbol, located on the equipment or its packaging, indi­cates that the equipment must not be disposed of in a land-fill
site or as municipal waste, and should be disposed of according
to your national regulations.

Tab l e 4 Safety definitions

WARNIN G

Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.

CAUTION

Indicates a a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.

About this guide

Conventions

xxxiii

User Manual 78000010220 Rev. 023

About this guide

Conventions

xxxiv User Manual 78000010220 Rev. 023

1

Chapter1 Principles of measurement

This chapter gives the principles of the measurements made by the reflec­tometer (OTDR)plug-ins, OSA spectrum analyzers (WDM technology) and
PMD analyzers (Polarization mode dispersion).

The topics discussed in this chapter are as follows:

• “Principle of reflectometry measurements” on page 2

• “Principle of bi-directional measurement” on page 5

• “Principle of the optical power and attenuation measurements” on

page 6

• “PMD principle” on page 8

• “Principle of measurement of Chromatic Dispersion (CD ODM) using

phase shift method” on page 10

• “Standards and l0 for different types of fiber” on page 11

User Manual 78000010220 Rev. 023 1

Chapter 1 Principles of measurement

Principle of reflectometry measurements

Principle of reflectometry measurements

Optical time domain reflectometry consists in injecting a light pulse into one
end of the optical fiber to be analyzed and observing, at the same end, the
optical intensity passing through the fiber in the opposite direction to the
propagation of the pulse.
The signal detected is exponentially diminishing in form, typical of the
phenomenon of backscattering, with superimposed peaks due to reflec­tions from the ends of the fiber or other variations in the refractive index.

Figure 1 Trace showing typical backscattering

Information yielded by the measurement

From a backscatter trace it is possible, in particular, to determine the posi­tion of a section of fiber within a link. The measurement result must reveal:

2 User Manual 78000010220 Rev. 023

Chapter 1 Principles of measurement

Principle of reflectometry measurements

• the attenuation

• the location of faults, by their distance from a point of origin,

• attenuation with respect to distance (dB/km)

• the reflectance of a reflective event or a link.

To locate faults, a reflectometer measures only time. Conse­quently, group velocity must be introduced in order to determine
the distance of the location. This is done by introducing the
refractive index of the fiber into the instrument.

Validity of Measurement

UTI-T, in recommendations G.650, G.651 and G.652, give backscatter
measurement as an alternative method for measuring attenuation, the
method of reference being the cut fiber.

The field of application of backscatter is not limited, but the conditions for
application of this method are nevertheless stipulated:

• injection conditions: Fresnel reflections must be limited at fiber input.

• a high-power source (laser) should be used.

• receiver bandwidth should be chosen to achieve a compromise

between pulse rise time and noise level.

• backscatter power should be represented on a logarithmic scale.

Reflectance

Reflectance is a value with which the coefficient of reflection of a reflecting
optical element can be quantified. It is defined as the ratio of the power
reflected by the element over the incident power.

These reflections are due to variations in refractive index all along the
optical link in certain telecommunications applications. If they are not

User Manual 78000010220 Rev. 023 3

Chapter 1 Principles of measurement

Principle of reflectometry measurements

controlled, they may degrade the performance of the system by perturbing
the operation of the emitting laser (especially DFB lasers) or may generate
interference noise in the receiver by multiple reflections.

The reflectometer is particularly well suited to the measurement of discrete
reflectances on an optical fiber link. To calculate the coefficient of reflec­tion, it is necessary to measure the total amplitude of the Fresnel reflection
generated and then to apply a conversion formula to obtain the reflectance
value.

This formula takes into account:

• the total amplitude of the reflection measured by the reflectometer.

• the pulse width used to measure the amplitude of the reflection (in

nanoseconds)

• the backscatter coefficient of the fiber used:

• typical values of the backscatter coefficient for a pulse of 1 ns and

– for a single-mode fiber: -79 dB to 1310 nm

-81 dB to 1550 nm and 1625 nm

– for a multi-mode fiber: -70 dB to 850 nm

-75 dB to 1300 nm

NOTE

To measure the widest range of reflection coefficient, it is neces­sary to insert a variable optical attenuator between the reflectom­eter and the link to be tested. This attenuator enables the level of
the trace to be adjusted so as to avoid saturation of the reflec­tometer by the reflection to be evaluated.

4 User Manual 78000010220 Rev. 023

Chapter 1 Principles of measurement

S

S1 S2+

2

-------------------

=

Principle of bi-directional measurement

Principle of bi-directional measurement

If fibers with different mode-field diameters (core size etc.) are joined, the
resulting OTDR trace waveform can show a higher backscattering level.
This is due to the increased level of backscattered signal reflected back to
the OTDR in the downstream fiber.

Figure 2 Normal splice

This phenomenon can occur when jointing different types of fiber in multi­mode or 2 fibers with different backscattering coefficients.

Figure 3 Positive splice (A ->B) / Negative Splice (B -> A)

The sum gives the bi-directional or average splice loss value:

Bi-directionnal measurement consists in performing a measurement from
the extremity of fiber A, then another measurement from the extremity of

User Manual 78000010220 Rev. 023 5

Chapter 1 Principles of measurement

Laser light
source of the

Referenc
e fiber

Link under test

Power meter

1

2

Principle of the optical power and attenuation measurements

fiber B, finally get events of both traces and calculate the average for all
slope, splice and reflectance measurements.

Principle of the optical power and
attenuation measurements

Power measurement

A power meter, is all that is needed to measure emitted or received power:

• to measure emitted power, connect the power meter directly to the
output of the optical emitter;

• to measure the power at the input of an optical receiver, the power
meter is connected to the end of the fiber, at the point where the
optical receiver would be connected.

Attenuation measurements (optical link loss)

For measurement of the attenuation of power in a complete link or in
elements such as sections of fiber, connections or optical components, a
light source and a power meter are required.

This attenuation is usually deduced from the measurement of optical power
at two points:

Attenuation A

6 User Manual 78000010220 Rev. 023

= P1

(dB)

(dBm)

- P2

(dBm)

Chapter 1 Principles of measurement

Principle of the optical power and attenuation measurements

To perform accurate measurements, the following conditions are vital

• Use one of the light sources of the LTS or a light source which is
stable both in time and as a function of temperature.

• Make sure that all connections and fibers and the receiving cell are
perfectly clean.

• Use a reference link between the laser source and the test subject. If
several measurements are to be made under identical light injection
conditions, this reference fiber must not be disconnected during the
period while measurements are taking place.

Insertion loss method

1 The power meter is first connected to the laser source via the refer-

ence fiber: P1 is measured.

2 Then the fiber to be tested is inserted between the reference fiber

and the power meter: P2 is measured.

The difference between P2 and P1 gives the attenuation of the fiber
under test.

It is preferable to use the same type of connector at both ends of the
fiber being tested, to ensure the same connection conditions for
measuring P1 and P2.

Accuracy of measurements

• A high degree of accuracy is often required. It is then necessary to
perform a preliminary calibration without the fiber under test to elimi­nate the losses due to connections as far as this is possible. To do
this, use the «Reference Value» function.

For measurements in the laboratory, where both ends of the fiber are on
the same site, the repeatability of attenuation measurements is better than

0.1 dB. For measurements in the field, where the two ends are on different

sites, variations from one measurement to another are of the order of ± 0.2
dB (using a relative measurement).

User Manual 78000010220 Rev. 023 7

Chapter 1 Principles of measurement

Si

n

g

l

e

-

M

o

d

e

f

i

b

e

r

V

2

V

1

DGD

PMD principle

PMD principle

The transmission rate and range are two of the most important parameters
of fiber optics paths and must therefore be optimized. And, since more and
more paths (including those already installed) are being used for transmit­ting Wavelength Division Multiplex (WDM) signals or for bit rates of 10 Gbit/
s, it is becoming all the more important to determine the Polarization Mode
Dispersion (PMD).

PMD, which is the basic property of single-mode fibers, in particular affects
the magnitude of the transmission rate. It results from the difference in
propagation times of the energy of a given wavelength, which is split into
two polarization layers that are at right angles to each other (as shown in
the below diagram). The main causes of this birefringence are non-circu­larities of the fiber itself and external stress on the fiber (macro-bending,
micro-bending, twist and temperature variations).

Figure 4 Example of a time delay between two polarization layers

The PMD is also referred to as mean value of all Differential Group Delays
(DGD) in picoseconds (ps) or as the DGD coefficient in ps/√km.

The mean DGD causes the transmission pulse to broaden when trans­mitted along the fiber, generating distortion, which in turns increases the
bit-error-rate (BER) of the optical system. The consequence is that the
PMD limits the transmission bit rate on a link. It is then important to know
the PMD values to calculate what are the bit rate limits of the links.

8 User Manual 78000010220 Rev. 023

Chapter 1 Principles of measurement

Broadband
light source

Fixed
Polarizer

Rotatable
Polarizer

Optical
Spectrum

Link under

Method used to measure the PMD

PMD principle

The method used to measure the PMD is based on the Fixed Analyzer
Method

1

which requires a broadband polarized source at one extremity,
and a polarized (variable) Optical Spectrum Analyzer (OSA) at the other
extremity.

Figure 5 Fixed Analyzer Method used to measure the PMD

The method used to measure PMD is the Fast Fourier Transform Method
(FFT).

From the spectrum, the mean period of the amplitude modulation is
measured.

The Fast Fourier Transform Method into a time distribution will give a
Gaussian curve and the mean DGD value is determined from this curve (for
fiber links with strong mode coupling).

It is not necessary to modify the polarization angle of the analyzer when
strong mode coupling is used. For weak mode coupling, an angle could be
selected to get the maximum amplitude of the modulation.

The instrument should have a higher dynamic range than the link itself. A
35 dB dynamic range is usually enough for most of the applications, and 45
dB should be used for very long distance networks.

The measurement range of the PMD should be linked with the transmission
rate. For WDM applications, it should be between 0.1 ps to 60 ps so that
measurement can be carried out for bit rates between 2.5 and 40 Gbit/s.

1.This is standardized by the ANSI/TIA/EIA FOTP-113 Polarization Mode Disper-

sion Measurement for Single-Mode Optical Fibers by the Fixed Analyzer Method.

User Manual 78000010220 Rev. 023 9

Chapter 1 Principles of measurement

Principle of measurement of Chromatic Dispersion (CD ODM) using phase shift method

The table below indicates the maximum permitted PMD values for various
bit rates.

Bit rate (Gbit/s)

2.5 40 < 2

10 10 < 0.5

40 2.5 < 0.125

10Gbps Ethernet 5 -

•

Tables at the end of chapter gives information about the appropriate
standards and limits.

Maximum PMD
(ps)

PMD coefficient (ps/√ km)

400 km cable length

Principle of measurement of Chromatic
Dispersion (CD ODM) using phase shift
method

The Phase shift method

A modulated broadband light is sent over the Fiber Under Test. The phase
of the test signal is compared to the phase of the reference signal. The
measured value is the group delay, corresponding to a wavelength interval
between the reference phase and the test wavelength phase. It is
measured in the frequency domain, by detecting, recording and processing
the phase shift of The modulated signals. The fibre chromatic dispersion is
derived from the measurement of the relative group delay using an approx­imation formula.

10 User Manual 78000010220 Rev. 023

Chapter 1 Principles of measurement

Standards and l0 for different types of fiber

Figure 6 CD ODM measurement using phase shift method

Standards and λ0 for different types of fiber

Fibre

Standard ITU/Y

Standard IEC

Standard TIA/EIA

Approximate λ

0 .

non-offset
dispersion

offset
dispersion

non-zero or
homogeneous offset
dispersion

ITU-T G.652 ITU-T G.653 ITU-T G.655

IEC 60793-1-1
type B1

IEC 60793-1-1
type B2

IEC 60793-1-1
type B3

Iva IVb IVb

1310 nm 1550 nm 1500 nm or indefinite

User Manual 78000010220 Rev. 023 11

Chapter 1 Principles of measurement

Standards and l0 for different types of fiber

Most suitable method of approximation according to
trace zone

Single Mode Fiber
Type

Dispersion unshifted
fiber (standard fiber)

ITU-T Wavelength Range Approximation

G.652 around 1310 nm 3-term Sellmeier

1550 nm region Quadratic

Full wavelength range
(1260 - 1640 nm)

Dispersion shifted
fiber

G.653 1550 nm region Quadratic

Full wavelength range
(1260 - 1640 nm)

Non-dispersion
shifted fiber

G.655 1550 nm region Quadratic

Full wavelength range
(1260 - 1640 nm)

Wideband NZDSF G.656 Full wavelength range

(1260 - 1640 nm)

Mixed fibers including

DCF

1550 nm region Quadratic

Full wavelength range
(1260 - 1640 nm)

5-term Sellmeier

5-term Sellmeier

5-term Sellmeier

5-term Sellmeier

5-term Sellmeier

12 User Manual 78000010220 Rev. 023

2

Chapter2 Getting started

This chapter describes how to start using the T-BERD/MTS 8000 V2 or T­BERD/MTS 6000/6000A V2.

The topics discussed in this chapter are as follows:

• “Unpacking the device - Precautions” on page 14

• “Installing a module in a receptacle and removing it” on page 14

• “Connecting fiber optic cable” on page 16

• “Optical connectors and interchangeable adapters” on page 20

• “Display screen” on page 22

User Manual 78000010220 Rev. 023 13

Chapter 2 Getting started

Captive screws securing the

Unpacking the device - Precautions

Unpacking the device - Precautions

We suggest that you keep the original packing material. It is designed for
reuse (unless it is damaged during shipping). Using the original packing
material ensures that the device is properly protected during shipping.

If another packaging is used (for returning the equipment for example),
Viavi cannot give warranty on good protection of the equipment.

If needed, you can obtain appropriate packing materials by contacting
Technical Assistance Center.

Installing a module in a receptacle and removing it

With the T-BERD/MTS-8000 V2, a module may be inserted into either of
the two slots provided for the purpose. With the T-BERD/MTS-6000/6000A,
only one module may be installed into the Platform.

When a slot is vacant, it is closed by means of a cover-plate fitted with two
captive screws like those on the plug-ins.

Figure 7 Rear view of the 8000 V2 Platform 8000 (example)

14 User Manual 78000010220 Rev. 023

Chapter 2 Getting started

Installing a module in a receptacle and removing it

Inserting a module

The Platform 8000 must be switched off, and if it has a mains

power supply, the adapter cable must be unplugged

1 Slide the module into its slot.

2 When it is fully home, press against the screen-printed surface of the

module while tightening the securing screws. The screen-printed
surface of the plug-in must be flush with that of the receptacle.

3 Make sure that the two large captive screws of the plug-in are

screwed fully home.

NOTE

UHD modules use very powerful lasers: they must be connected
exclusively to optical connectors equipped with zirconium ferules.
Using connectors equipped with metallic ferrules could damage
the plug-in connector.

Removing a module

The Platform 8000 must be switched off, and if it has a mains

power supply, the adapter cable must be unplugged

1 Completely unscrew (up to the stop) the two captive screws securing

the module.

2 Carefully slide the module out of its slot.

User Manual 78000010220 Rev. 023 15

Chapter 2 Getting started

Connecting fiber optic cable

Connecting fiber optic cable

Inspecting and cleaning connector end faces

Always inspect and clean the connector end face of the
optical fiber cable and the test port before mating both
together.

Viavi is not responsible for damage and reduced perfor­mance caused by bad fiber handling and cleaning.

• Optical connector contamination is the #1 source of performance

degradation and test equipment repair

• A single particle mated into the core of a fiber can cause significant
back reflection, insertion loss and equipment damage. Visual inspec­tion is the only way to determine if the fiber connectors are truly clean
before mating them.

Follow this simple "INSPECT BEFORE YOU CONNECT" process to
ensure fiber end faces are clean prior to mating connectors.

16 User Manual 78000010220 Rev. 023

Chapter 2 Getting started

Connecting fiber optic cable

Figure 8 "Inspect Before You Connect" process

Optical connector types

There are many optical connectors in the market place. Always ensure to
use a high quality connector that meets the international standards.

Two main types of connectors are deployed in the telecommunication
industry:

1 Straight polished connectors, so called PC or UPC

2 Angled polished connectors, so called APC

The PC or UPC-type test port is identified by a grey cap with the addition
of a "PC" label.

The APC-type test port is identified by a green cap with the addition of a
"APC" label.

User Manual 78000010220 Rev. 023 17

Chapter 2 Getting started

Connecting fiber optic cable

Figure 9 Modules with APC and PC connector

Caution

Never connect a PC connector into an APC test port or vice versa. This will
result in damaging the connector end faces.

Figure 10 PC/APC bad connection

18 User Manual 78000010220 Rev. 023

Chapter 2 Getting started

Connecting fiber optic cable

WARNIN G

Viavi declines responsibilities of connector damages if a poor
quality connector is used or APC to PC connections made. Test
port connector repair will be charged

WARNIN G

All the universal connectors are available on the OTDR Modules,
except on the LA Module.

Connecting Fiber optic cable to test port

After ensuring proper cleaning of both end connectors, follow the below
steps in order to correctly and safely connect the optical fiber into the test
port:

1 Carefully align the connector and test port to prevent the fiber end

from touching the outside of the port and scratching the end face.

NOTE

If your connector features a keying mechanism, ensure that it is
correctly fitted into the test port's insert.

2 Push the connector to firmly place it inside ensuring physical end

face contact.

NOTE

If your connector features a screw-on sleeve, tighten the
connector to firmly maintain the fiber in place. Do not over tighten
as this will damage the fiber and the test port.

User Manual 78000010220 Rev. 023 19

Chapter 2 Getting started

Optical connectors and interchangeable adapters

WARNING

Never force the connector ferrule or insert it with an angle into
the test port adapter. Mechanical stress may permanently dam­age the ceramic sleeve of the adapter or the end face of the con­nector. A new adapter purchase only will get the unit back to
operation.

Optical connectors and interchangeable
adapters

Fiber Optic modules may come equipped with a universal connector and
adapter selected at time of order.

Adapter types

Viavi offers 5 different adapters, all compatible with this connector, allowing
the user to switch from one adapter to another according to which fiber type
he intends to work with.

Adapter types supplied are: FC, SC, DIN, ST and LC.

20 User Manual 78000010220 Rev. 023

Chapter 2 Getting started

FC Adapter (EUFCAD)

DIN Adapter (EUDINAD)

LC Adapter (EULCAD)

ST Adapter (EUSTAD)

SC Adapter (EUSCAD)

Pull out in the direction of
the arrow in order to

To place an adapter, position
the handle as shown in order
to engage with the the lugs,
push hard and pull the

Optical connectors and interchangeable adapters

Figure 11 5 different types of adapters may be mounted on the universal

connector

Switching adapter type

In order to switch from an adapter to another, proceed as shown.

Figure 12 Removing and refitting an adapter

Cleaning the universal connector

Remove the adapter in order to access the ferrule and clean it using a
cotton swab.

User Manual 78000010220 Rev. 023 21

Chapter 2 Getting started

2

1

3

4

5

Display screen

Display screen

The display screen is divided into a number of different zones. Starting from
the top, these are:

1 a status bar in which various icons indicate the current functions:

2 a bar displaying a scaled-down representation of the trace, showing

the zoom zone and the parameters of the measurement on display
(signature of the measurement).

3 the main part of the screen, displaying a menu or the page of results.

4 tabs enabling the user to switch from one function to another (OTDR,

PMD, power meter, etc.), as required.

5 At the right-hand side of the screen, softkeys give access to the

various commands. Their action depends on the current function and
configuration.

Figure 13 Example of display of results (OTDR)

22 User Manual 78000010220 Rev. 023

Chapter 2 Getting started

Display screen

Top status bar

The top status bar on the screen shows, on the right, current date and time,
and in the form of icons:

• the type of power supply: mains or battery, and if the power supply is
on battery the level of charge (see Battery management in chapter 2
from the Platform 8000 manual)

• if the Talkset option is present and the telephone is activated, the
icon .

• if a remote screen is selected, the icon (or if two users or
more are working on the same Platform 8000).

• if transfer of data is in progress, the icon .

• if a printing process is in progress, the icon

• if a data saving is in progress, the icon

• if a USB key is connected onto the Platform, the icon

Mini-trace

The File menu and the Results page can include a scaled-down represen­tation of the trace which may show the location of the zoom zone corre­sponding to the main display. The part of the trace shown in the main
display is boxed on the mini-trace.

This mini-trace will only appear if the trace originated from an Platform

8000. Other Bellcore files read on this instrument do not contain the infor-

mation needed to display it.

In OTDR Mode, the symbol LFD can be displayed with the mini trace, indi­cating the Traffic Detection function has been used.

User Manual 78000010220 Rev. 023 23

Chapter 2 Getting started

Display screen

Signature of the measurement

A status bar repeats the parameters of the measurement, and in some
cases:

• the position of the cursors:

In OTDR results page, the cursors information are displayed only if
Cursor key is active (see page 82).

• a comment

• the name of the file when the result is stored and recalled from a

memory.

Main display zone

The central zone of the screen can display the configuration of the instru­ment or the measurement, the memory explorer of the Platform 8000, the
measurement results, etc. Refer to the chapter dealing with the measure­ment in progress.

Tabs

When the instrument performs several different functions (OTDR, PMD,
Power Meter, etc.), the various configuration or results pages are acces­sible from tabs. To change from one tab to another, the button selecting the
page must be pressed. For example:

• on the Results page, to change from one tab to the other, press the
RESULTS button

• on the measurement configuration page, to change from one tab to

the other, press the

• On the file configuration page, to change from one tab to the other,
press the

24 User Manual 78000010220 Rev. 023

FILE button.

SETUP button

Chapter 2 Getting started

Display screen

NOTE

There is a tab for each different type of measurement: OTDR
SM, OTDR MM, OSA, Power Meter... The tab of a function is dis­played if and only if a module corresponding to this type of mea­surement has been inserted in the instrument, or if a file of the
type of this measurement is open. If two modules of the same
measurement type are present, then only one module is "active",
so only one tab will appear for this measurement. To change the
active module, go to the Home screen and select it there.

A small icon may appear in the left corner of each tab, according to the
status of the corresponding module.

The icon signification is the following:

• No icon: the function is used in a read-only mode (no module), or the
module has not been selected.

• Dark green icon: the function has been selected but the corre­sponding module does not currently perform an acquisition.

• Green icon: the function has been selected and the corresponding
module currently performs an acquisition.

Soft keys

The 7 softkeys at the side depend on the current configuration and the
context.

Their use is symbolized by an icon.

User Manual 78000010220 Rev. 023 25

Chapter 2 Getting started

Display screen

Icons

shows that the action is immediate when the key is pressed.

shows that the key gives access to a sub-menu.

shows that the key will quit the sub-menu.

shows that the function selected by the key will be controlled
by the direction keys

Selection keys

The selection may be exclusive (only one choice possible) or non-exclusive
(more than one option available at the same time):

This key offers two / three exclusive options
tion occurs immediately, the first time the key is pressed.

This key offers two / three non-exclusive options
key repeatedly modifies the choice.

26 User Manual 78000010220 Rev. 023

. The change of func-

. Pressing the

3

Chapter3 Reflectometry measurements

Pressing the START/STOP key is all that is needed to start or stop a
measurement. However, it is necessary to configure the measurement and
the type of results desired.

This chapter describes the different stages in a reflectometry measurement
made using an OTDR module.

The topics discussed in this chapter are as follows:

• “Activating the OTDR function” on page 28

• “Configuring the reflectometry test” on page 31

• “Traffic Detection and connection quality indicator” on page 64

• “Performing OTDR acquisitions” on page 65

• “Results display” on page 75

• “Advanced functions in Expert OTDR mode” on page 91

• “Saving the trace(s) and generating a report” on page 111

• “SLM (Smart Link Mapper) option” on page 116

• “OptiPulses option” on page 122

• “FTTA-SLM option” on page 125

• “FTTH-SLM Software option” on page 146

• “Smart Link Cable Option” on page 164

User Manual 78000010220 Rev. 023 27

Chapter 3 Reflectometry measurements

Activating the OTDR function

Activating the OTDR function

Once the OTDR module is correctly set onto the equipment and the T­BERD/MTS is switched on, the desired OTDR function must be selected
before any OTDR configuration, or measurement.

Selecting the Smart Test function

Principle of the Smart Test

The Smart Test is used to perform OTDR acquisitions using a pre loaded
configuration file (no setup required) and access to essential analysis
features.

Selecting Smart Test

The Smart Test function is available whatever is the OTDR module set onto
the T-BERD/MTS.

To select this function, after the equipment starts:

1 Press the

28 User Manual 78000010220 Rev. 023

HOME button.

Figure 14 Home page

2 Select the Smart Test icon

The icon turns yellow .

After a few seconds, the Results page displays.

Chapter 3 Reflectometry measurements

Activating the OTDR function

NOTE

The selection of Smart Test icon automatically deselects the

Expert OTDR icon and vice-versa.

NOTE

In the case a Singlemode/Multimode module, one line contains
the Multimode icons and a second one the Singlemode icons.

To distinguish both modes, multimode icons contain the MM
mark.

User Manual 78000010220 Rev. 023 29

Chapter 3 Reflectometry measurements

Activating the OTDR function

Selecting the Expert OTDR function

Principle of the Expert OTDR

The Expert OTDR is used to

• perform OTDR acquisitions with full OTDR setup capabilities, and
advanced analysis features.

• create configuration files that can be loaded by Smart Test users.

Selecting Expert OTDR

The Expert OTDR function is available whatever is the OTDR module set
onto the T-BERD/MTS.

To select this function, after the equipment start:

1 Press the

2

Select the Expert OTDR icon

The icon turns yellow .

After a few seconds, the Results page displays.

NOTE

The selection of Expert OTDR icon automatically deselects the
Smart Test icon and vice-versa.

NOTE

In the case a Singlemode/Multimode module, one line contains
the Multimode icons and a second one the Singlemode icons.

To distinguish both modes, multimode icons contain the MM
mark.

30 User Manual 78000010220 Rev. 023

HOME button

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Configuring the reflectometry test

1

Configuring the unit for Smart Test

Once the Smart Test icon is validate, the Results page displays automat­ically.

Before any test in Smart Test:

1 Select the configuration file, which contains all acquisition parame-

ters and file storage setup, and which has been created in Expert
mode

(see “Saving OTDR configuration in a file” on page 61).

2 The user can then configure/modify some parameters before starting

the test

Selecting the configuration file

To load the configuration file to be used for Smart Test test:

1 Press

2 On bottom right of setup page, press Load Config. menu key.

SETUP hard key.

3 In the Explorer, select the desired file configuration (example: Auto

test singlemode)

4 Press Load > Load as SMART Config. menu keys.

A beep is emitted to validate the selection of the configuration file.

1.if an OTDR module is installed

User Manual 78000010220 Rev. 023 31

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Figure 15 Load file as Smart Test Configuration

The software automatically brings you back to setup page.

NOTE

Most of the configuration files are available into the Platform, in

disk/config

.

Modifying some parameters before the acquisition

In Smart Test mode, the user have access to 4 parameters he can modified
before launching the test.

To display and modify i necessary the parameters:

1 Once Results page is displayed, press

The Setup page for acquisition in Smart Test mode displays.

32 User Manual 78000010220 Rev. 023

SETUP hard key

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Figure 16 Smart TestSetup page

• Laser The acquisition will be carried out on the
wavelength(s) selected (for multiple-wavelength modules). In case of
a multi-wavelength module, select All to perform a measurement for
all the wavelengths available (this parameter visible exclusively on
modules with one single OTDR port). The possible values depend on
the module used.

• Fiber Number Modify, if necessary, the number of the fiber using left
and right direction keys.

• Distance unit select the unit to be used for distance (km / kfeet /
miles / meter / feet / inch).

• Config. This parameter displays the configuration file
selected for Smart Test acquisition, and cannot be modified

.

Press R

ESULTS hard key to return to results page and launch the acquisi-

tion (it can be launched directly from the Setup page).

User Manual 78000010220 Rev. 023 33

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Configuring the test in Expert OTDR

Once the Expert OTDR icon is selected, the Results page automatically
displays.

In Expert OTDR, the parameters for acquisition and for file storage can be
configured.

1 To call up the test configuration window, press the

Dialog boxes / menu keys on the same screen enable selection of:

– Acquisition parameters
– Alarms parameters
– Analysis parameters

– Link parameters
– File parameters

Used for the OTDR acquisition

Used for the OTDR results saving

Figure 17 OTDR SETUP screen

SETUP button.

34 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

In these windows, the parameter selected is in video inverse.

Configuring the Acquisition parameters

You can choose the OTDR acquisition parameters.

1 Once the Setup page is displayed, press Acquisition menu key to

configure the Acquisition parameters.

The Acquisition Setup page is divided into two parts: the Acquisition box
and the Launch cable box.

If some acquisition parameters are not accessible (not visible or
displayed in grey), check in the Home page that the Expert
OTDR function is selected (see

function” on page 30

Parameters

Laser

).

“Selecting the Expert OTDR

The acquisition will be carried out on the wavelength(s) selected (for
multiple-wavelength modules). In case of a multi-wavelength module,
select All to perform a measurement for all the wavelengths available (this
parameter visible exclusively on modules with one single OTDR port). The
possible values depend on the module used.

Acquisition

Select the kind of acquisition to be performed:

Manual The acquisition parameters Pulse / Range / Resolution

can be set by user.

Auto The acquisition parameters Pulse / Range / Resolution

are defined automatically and cannot be modified

The Measurement time will be set to Auto, but can be modified (see

“Time” on page 37).

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Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Range

The possible range depends on the pulse length selected. This range is
given for each pulse length in the paragraph “Distance Ranges” on

page 591. This parameter is exclusively configurable if Acquisition

parameter is set to Manual. It depends on the module used

Auto allows to detect automatically the range.

In Auto mode, the range is selected as a function of the end of the fiber.

Pulse

From 3ns to 20µs according to module used. Parameter selectable only if
Acquisition parameter is set to Manual.

In the case of a multi wavelength acquisition:

– you can define a pulse for each wavelength:

a select each wavelength in the Laser line and define a pulse

b Once all lasers are configured, go back to the pulse line and

select Multi.

– you can define a pulse for all lasers:

c select All on the Laser line

d select a pulse, which will be common to all lasers

See “OTDR Specifications” on page 585.

NOTE

According to the value selected for Pulse parameter, the Range
parameter can be automatically modified, and vice-versa.

Resolution

This parameter is exclusively configurable if Acquisition parameter is set
to Manual.

36 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Auto resolution is selected automatically according to the last

two parameters above.

High Resolutionthe highest resolution is applied

High Dynamic the highest dynamic is applied

Time

Real time the equipment performs up to ten acquisitions per second

(see “Performing OTDR acquisitions” on page 65).

NOTE

Whatever is the acquisition mode selected, an acquisition in real
time mode can be launched maintaining the S
pushed for about 2 seconds.

NOTE

If the Acquisition parameter is defined to Auto, then the Time
parameter is defined to Auto, but can be modified.

TART/STOP button

Manual Enter the acquisition time desired (from 5 s. to 5 minutes

max).

Predefined Select one of the acquisition times predefined: 10 seconds

/ 20 seconds / 30 seconds / 1 minute / 2 minutes / 3
minutes.

Smart Acquisition

(not available in Multimode)

This parameter allows to launch a short acquisition before the standard
one.

The first acquisition is performed with the shortest pulse in order to detect
more precisely the events at the beginning of the fiber.

To configure the Smart Acq. parameter:

User Manual 78000010220 Rev. 023 37

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Auto a first short acquisition is performed with the shortest pulse

in the range, before the standard one.

No the standard acquisition is directly launched.

If the option OptiPulse is available, see “Configuring the OTDR acquisition

with OptiPulses mode” on page 122 to configure the OTDR acquisition with

this option.

Otdr Connector test

This parameter allows to choose if a test of the front connector must be
performed when acquisition is launched.

No the OTDR connection is tested with indication Bad/Good.

Yes & Continue

the OTDR connection is tested, and if the state is not
good, the acquisition continues but a warning displays.

Yes & Abort the OTDR connection is tested, and if the state is bad, a

warning displays and the acquisition stops.

Launch cable parameters

Launch Cable End / Receive Cable Start

No All the results are displayed and referenced on the basis of

the board of the module.

Evt 1, 2, 3 The results relating to the launch cable are eliminated from

the table. Attenuation and distances are then measured on
the basis of the marker Evt 1, 2 or 3 selected.

Distance Use the Edit Number key to enter a distance (Min= 0 /

Max=50 km / 164.042 kfeet / 31.075 miles) or affect the
active cursor value, using the Set Cursor Distance key.

38 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

OTDR

Launch Cable Receive Cable

Fiber Under Test

Launch
Cable end

Receive
Cable start

Distance of the
launch cable

Distance of the
receive cable

Configuring the reflectometry test

Figure 18 Launch Cable / Receive Cable

Include Link Start Connector / Include Link End Connector

Defining the Launch Cable End parameter with an event number or a
distance will automatically activate the corresponding parameter Include
Link Start Connector. This parameters can be set to Yes if the budget
must include the connectors loss of the launch cable at end

Defining the Receive Cable Start parameter with an event number or a
distance, will automatically activate the corresponding parameter Include
Link End Connector. This parameters can be set to Yes if the budget must
include the connectors loss of the launch cable at start

If those parameters are set to No, the budget only displays the connector
loss of the fiber.

User Manual 78000010220 Rev. 023 39

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Configuring the Alarms parameters

In the Setup page, press Alarms softkey (if one parameter is selected in
the current screen, press Top Menu soft key to display the right menu keys
and click on Alarms).

Once the Alarms page is displayed, configure the parameters for applying
thresholds to results displayed.

Alarms > Threshold

None The alarm function is not active.

Fail This menu lists possible major alarm thresholds that the

user could select. If results are above those thresholds,
they will be highlighted in red in the table of results, and
the icon will appear at the top right of the screen.

– If Fail is selected, select in the Threshold parameter to defined

values either manually or according to standards:

User: define your own thresholds values for one or several elements:
Splice / Connector / Reflectance / Slope / Fiber Length Min and Max /
Total Loss Min and Max / ORL

TIA-568 C / ISO/IEC 11801 / Default: / G.697/G.98x PON / G.697/
IEEE PON Select one of this parameter to configure the alarm

thresholds with predefined values:

Tab l e 1 Singlemode Modules

Default

G.697/G.98x PON
G.697/IEEE PON

TIA-568C &
ISO/IEC 11801

Splice Loss > 0.20 dB > 0.30 dB > 0.30 dB

Connector

> 0.50 dB > 0.50 dB > 0.75 dB

Loss

1

Slope

40 User Manual 78000010220 Rev. 023

> 1.00 dB/km - > 1.00 dB/km

Table 1 Singlemode Modules

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Default

G.697/G.98x PON
G.697/IEEE PON

Reflectance > - 35 dB > - 35 dB -

ORL < 27 dB

Splitter Alarm

1 X 2 > 5.0 dB > 4.2 dB

1 X 4 > 8.0 dB > 7.8 dB

1 X 8 > 11.0 dB > 11.4 dB

1 X 16 > 14.0 dB > 15.0 dB

1 X 32 > 17.0 dB > 18.6 dB

1 X 64 > 21.0 dB > 22.0 dB

Link Loss
Max

Select: No/ Manual or:

• for G.697/G.98x PON:
20 dB (A) / 25 dB (B) /
30 dB (C)

• for G.697/IEEE PON: 30
dB (C) / 23 dB (PX-10) /
26 dB (PX-20)

1. This parameter is not available in OEO-OTDR configuration

TIA-568C &
ISO/IEC 11801

Tab l e 2 Multimode Modules

Default TIA-568C & ISO/IEC 11801

Splice Loss > 0.20 dB > 0.30 dB

Connector Loss > 0.50 dB > 0.75 dB

Slope 850 nm > 3.50 dB/km > 3.50 dB/km

Slope 1300 nm > 1.50 dB/km > 1.50 dB/km

User Manual 78000010220 Rev. 023 41

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Table 2 Multimode Modules

Default TIA-568C & ISO/IEC 11801

Reflectance > - 35 dB -

ORL < 27 dB -

WarningThis menu lists possible minor alarm thresholds that the
user could select. If results are between those thresholds and the
«fail» thresholds, they will be highlighted in yellow in the table of
results, and the icon will appear at the top right of the screen.

Thresholds can be set for: Splice / Connector / Reflectance.

If all the results lie within the thresholds (no result is in red or yellow),
results are displayed in green in the table and the icon is .

Configuring the Analysis parameters

In the Setup page, press Analysis softkey (if one parameter is selected in
the current screen, press Top Menu soft key to display the right menu keys
and click on Analysis).

The Analysis Setup page is divided into two parts: the Parameters box and
the Measurement box.

Parameters

Section Attenuation

dB/km Displays the section slope in the table of results. When the

fiber is too short to measure the slope accurately, no value
is displayed (empty field).

dB Displays the section Loss in the table of results. With short

fiber where the slope cannot be measured with a good
accuracy, the loss in dB is approximate and displayed.

42 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

None The section attenuation and Loss values are not displayed

in the table of results.

Section Attenuation

Choose to display or not the section length in the table of results.

Index of refraction

Choice of group refraction index of the whole fiber.

User Define for each wavelength (1310 SM, 1360-1510 SM,

1550 SM, 1625 SM) a refraction index of 1.30000 to

1.69999. The selection of an index alters the value of the
section AB (actual distance between cursors A and B).

NOTE

With the CWDM Module, the selection is as follows:

• For lasers 1271, 1291, 1311, 1331 and 1351, select the line
1310 SM.

• For lasers 1371 to 1511, select the line 1360 - 1510 SM

• For lasers 1531, 1551 and 1571, select the line 1550 SM

• For lasers 1591 and 1611, select the line 1625 SM.

or,

If the actual distance between the cursors A and B is
known, enter its value under Section AB to establish the
index of the fiber. Selection of this distance causes the
display of the indices. The extreme distance values are
given by the index values (1.30000 à 1.70000).

Predefined It is possible to choose one of the predefined values given

for certain cables. The corresponding indices given in the
table below are repeated on the screen.

User Manual 78000010220 Rev. 023 43

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Figure 19 Predefined index values (Single Mode)

Wavelength (nm) 1310 SM 1360 - 1510 SM 1550 SM 1625 - 1650 SM

Generic G652

1.46750 1.46800 1.46800 1.46850

G657

Generic G653

1.46750 1.46800 1.46800 1.46850

G655

ATT SM 1.46600 1.46700 1.46700 1.46700

Corning SMF-28 1.46750 1.46810 1.46810 1.46810

Corning SMF-DS 1.47180 1.47110 1.47110 1.47110

Corning SMF-LS 1.47100 1.47000 1.47000 1.47000

Corning-Leaf 1.46890 1.46840 1.46840 1.46900

Draka SMF 1.46750 1.46800 1.46800 1.46850

Draka Longline 1.46700 1.46700 1.46710 1.46750

Draka Teralight 1.46820 1.46820 1.46830 1.46850

Draka Benbright 1.46750 1.46750 1.46800 1.46850

Fitel Furukawa 1.47000 1.47000 1.47000 1.47000

OFS Lucent All-

1.46750 1.46750 1.46750 1.46850

wave

Lucent Truewave 1.47100 1.47100 1.47000 1.47000

SpecTran SM 1.46750 1.46810 1.46810 1.46810

Sterlite 1.46700 1.46700 1.46750 1.46750

Sumitomo

1.46600 1.46600 1.46700 1.47000

Litespec

Sumitomo Pure 1.46600 1.46600 1.46700 1.47000

44 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Figure 20 Predefined index values (Multi Mode)

Wavelength (nm) 850 MM 1300 MM

Corning 62.5 1.50140 1.49660

Corning 50 1.48970 1.48560

SpecTran 62.5 1.49600 1.49100

Generic 50 1.49000 1.48600

Generic 62.5 1.49000 1.48700

Generic OM1-62/125 1.49600 1.49100

Generic OM2-3- 4 50/125 1.48200 1.47700

Scatter coefficient

User Selects for each wavelength, the backscatter coefficient of

-99 dB to -50 dB by increments of 0.1dB. Modification of
the backscatter coefficient K changes the measurements
of reflectance and ORL.

Auto Backscatter coefficients are selected automatically for

each wavelength.

In Multimode, two predefined scatter coefficients are available:

– Generic 50: 850 MM - > -66.3 dB

1300 MM -> -73.7 dB

– Generic 62.5: 850 MM -> -66.1 dB

1300 MM -> -70.3 dB

The default values are given in the paragraph “Reflectance” on page 3.

Distance Unit

Define the unit of the distances displayed: km, kfeet, miles, meter, feet,
inch.

User Manual 78000010220 Rev. 023 45

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Results on trace

None the trace alone

All the trace with results and markers.

Graphics the trace with markers only.

If All or Graphics is selected, the reflectometry trace is displayed with a
dotted vertical line set on the end of launch cable (if the Launch Cable
is defined in the S

ETUP menu) and a dotted vertical line on the end of fiber

.

Event Notes

See “Table notes” on page 96

No no display of notes

Notes display of notes entered by the user

Uncertainty display of indicators of the level of confidence in the

measurement result.

Measurement

Otdr Connector Measurement

This parameter allows to choose if a measurement of the front connector
must be performed when acquisition is launched.

No In the results table, the first line corresponds to the first

event detected.

Yes In the results, the first result corresponds to the front

connector measurement, at 0 meter (estimated value).

Number of Splitters

None there is no splitter set onto the network.

Discover Auto-detection and identification of PON splitter types.

46 User Manual 78000010220 Rev. 023

(not available in Multimode)

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

1 to 3 If the number of splitters is known, select it from the list

(from 1 splitter to 3 splitters).

This selection opens a sub menu into which the splitters types must
be defined for all splitters installed.

Splitters types

Splitter 1: define the splitter type among the list:

– Discover

– 1x2 / 1x4 / 1x8 / 1x16 / 1x32 / 1x64

– 2x2 / 2x4 / 2x8 / 2x16 / 2x32 / 2x64

Splitter 2 and Splitter 3: define the splitter type among the list:

– Discover

– 1x2 / 1x4 / 1x8 / 1x16 / 1x32 / 1x64

Detection

Splice Select if a level of detection for splice must be defined.

Press Edit Number soft key and select a value:

– Enter a min level of detection, from 0.01 to 1.99 dB

– No: no splice detection

– Auto: to automatically detect splice

Reflectance Select if level of detection for reflectance must be defined.

Press Edit Number soft key and select a value:

– Enter a min level of detection, from -98 to -11 dB

– None: no reflectance detection

– All: all reflectances are detected

Ghosts Choice (Yes / No / No Analysis) of whether information

relating to ghosts is to be displayed. If ghosts are
displayed, the reflection icon in the table of results appears
dotted and the reflection value is displayed in brackets on
the trace, for example «(R:-50 dB)».

User Manual 78000010220 Rev. 023 47

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Fiber end Once parameter is selected, press Edit Number key to

display the numeric keypad and select the wished value:

Auto (recommended) option in which the T-BERD/MTS auto­matically detects the end of a fiber.

> 3 to > 20 dB (steps of 1 dB): threshold of detection of end of
fiber.

Bend (not available in Multimode) With any dual or triple-wave-

length measurement module, the user will have access to
the macro bend detection function in the test setup. Each
event of the selected wavelengths will then be compared.

Once parameter is selected, press Edit Number key to display the
numeric keypad and select the wished value:

– None: Bend will not be detected.

– Auto: Bend will be automatically detected.

– Define by user: Enter the bend value (in dB), with direction

keys or numeric keypad.

Event After Fiber End

If Yes, the events after the end of the link are detected.

Tota l Loss

Before evt for a given line on table, the total loss result does not

include the splice/connector loss of the corresponding line

After evt on the table, for a given line, the total loss measurement

on the table does include the splice/connector loss of the
corresponding line.

Configuring the Link parameters

In the Setup page, press Link softkey (if one parameter is selected in the
current screen, press Top Menu soft key to display the right menu keys
and click on Link).

48 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

NOTE

The softkey Copy File/Link To all is displayed when one param-
eter is selected in the Link or File Setup page and when the Pow­ermeter or Source function is active.

It allows to apply the Link and File configuration parameters of
the current applications to all the other active Fiber Optic applica­tions (powermeter and source).

The information entered in the Link Description window concerns the
editing and/or the modifications of the cable and fiber parameters. When a
trace is recalled without recall of the configuration, the parameters of this
trace will be present only in its signature.

Fiber ID

Select the parameter Fiber Id and enter a name for the fiber, using the
edition keypad.

Fiber Number / Fiber Code

The parameter Fiber Number becomes Fiber Code if, in the Cable Struc­ture window, the Cable Content parameter is defined on another param-

eter than Fiber (Ribbon/Fiber, Tube/Fiber or Tube/Ribbon/Fiber). See

page 52.

The fiber code corresponds to the fiber number if, in the Cable Structure,
the parameter Color coding is defined on No.

The fiber code corresponds to the fiber color if, in the Cable Structure, the
parameter Color coding is defined on Yes.

Select the parameter Fiber Number/Fiber Code and modify the parameter
using the left and right direction keys.

The fiber number can be automatically incremented/decremented at
each new file save if it has been configured in the File Setup page
(see “Configuring the File parameters” on page 55).

User Manual 78000010220 Rev. 023 49

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

NOTE

The Fiber Code and the fiber number concatenated with

Name

are interdependent: they are incremented or decremented
at the same time. However, the fiber number remains a number
only, while the fiber code is alphanumerical. Whether it includes a
color code or not (see

“Cable structure” on page 52), it may be

composed of one, two or three parts (see figure

page 50

).

Figure 21 Example of incrementation of fiber code

Fiber and cable parameters used in the example:

Fiber Name: ’Fiberx’
Cable Content: ’Tube/Fiber’
Max Tube: 12
Max Fiber: 24
Coding used for the fiber and the tube: TIA

Fiber N Fiber N+1

Fiber

Table 21 on

Color Code Yes No Yes No

<Fiber Name>

<Fiber Code>

Fiberx24 Fiberx24 Fiberx25 Fiberx25

Bl/Aq- 1/24 Gold/Bl 2/1

Change Fiber Nbr

Increment the fiber number is automatically incremented at each new

file-save.

Decrement the fiber number is automatically decremented at each

new file-save

User defined Use Edit Number softkey to enter the increment/decre-

ment value for fiber number.

50 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Note: to decrement the number, enter the sign «-» before the
number. Example: -1.

Min: -999 / Max: 999 / Auto: 0

No the Fiber number must not automatically modified.

Extremities are different

In some cases, it is interesting to save different information for the origin
and the extremity of the cable.

If this option is validated, it is possible, after selecting the extremity to be
edited in the Cable Structure menu, to modify the values specific to the
cable (cable name, color coding, content of the coding), for each of these
extremities. See chapter “Cable structure” on page 52)

To display/modify the data specific to the fiber (name and code), it is neces­sary to change direction temporarily. In the "O->E" direction, the informa­tion on the origin can be edited, and in the "E->O" direction, that on the
extremity.

Cable Id

This parameter allows to enter an identification of the cable, using the
Edition menu.

Direction

The direction shows if the acquisition has been made from the origin to the
extremity (A->B) or from the extremity to the origin (B->A). Changing direc­tion makes it possible, when different extremities are handled, to see the
parameters of the fiber for the other extremity.

Location A

The name of the Location A of the link may be entered here.

Location B

The name of the Location B of the link may be entered here.

User Manual 78000010220 Rev. 023 51

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Cable structure

This line opens a sub-menu, all the parameters of which can be different
for each extremity.

Figure 22 Cable structure menu

NOTE

The Cable Structure window is specific to an extremity. Each
struc-ture keeps its own parameters by default. Modifications
made to the one are not automatically applied to the other. Thus,
after the values relating to the origin have been modified, it is
normal not to find these same values entered for the extremity.

View extremityIf extremities are declared as different (see “Extremities

are different” on page 51), this parameter allows to navi-

gate between the Extremity and Origin parameters.

Cable Id If the extremities are different, you can specify the cable

identification for the origin and the extremity.

Color Coding Choice of whether or not to apply a color coding to the

fiber. This choice is made at link level, as all the fibers of a
given link, for a given extremity, will be coded the same
way. This choice modifies the result of the <Fiber Code>
line. See “Fiber Code / Fiber Num” on page 134.

52 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Cable content Shows how the color code is to be used (see figure “Cable

structure menu” on page 52):

– FiberOnly the color code of the fiber is proposed (example:

«Gold»)

– Ribbon/Fiber The color code of the fiber is preceded by that of

the ribbon, and separated by a ’/’ (example: ’Bl/Or’)

– Tube/Fiber The color code of the fiber is preceded by that of the

tube, and separated by a ’/’ (example: ’Br/Or’)

– Tube/Ribbon/Fiber

The color code of the fiber is preceded by that of the tube, then
by that of the ribbon; the three being separated by a ’/’ (example:
’Br/Bl/Or’). See “Fiber Code / Fiber Num” on page 134.

Max tube Shows the maximum number of tubes in the cable for the

extremity selected. This information influences the auto­matic coding of the fiber. See “Fiber Code / Fiber Num” on

page 134.

Max ribbon Shows the maximum number of ribbons in the cable for

the extremity selected. This information influences the
automatic coding of the fiber. See “Fiber Code / Fiber

Num” on page 134.

Max fiber Shows the maximum number of fibers in the cable for the

extremity selected. This information influences the auto­matic coding of the fiber. See “Fiber Code / Fiber Num” on

page 134.

NOTE

Certain parameters are not valid in the configuration selected.
Thus, if no tube is selected in

Cable Content, all the lines relat-

ing to the tube concept will be deactivated (grayed out in the
menu).

User Manual 78000010220 Rev. 023 53

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Tube Coding, Ribbon Coding, Fiber Coding

The lines Tube Coding, Ribbon Coding and Fiber Coding
enable selection of the color coding of the tube, the ribbon
and the fiber from 5 different codes described below: TIA,
USER 1, USER 2, USER 3 and USER 4.

Code DefinitionThe Code Definition line opens a sub-menu, with which

the different color codes possible on the instrument can be
displayed and modified (see figure “Color code definition”

on page 54).

Five different codes can be managed by the T-BERD/MTS, including
a standard code.

The standard code (TIA) may be displayed but it cannot be modified.

The other codes, called by default USER1, USER2, USER3 and USER4,
can be entirely personalized.

– Edited codeselects the code for display or modification.

– Code nameto give a new name to the code selected, press the

key, which calls up the edit menu.

– View codesdisplays the color codes 1 to 12, 13 to 24 or 25 to 36.

– Code 1...23Use the arrow to modify the codes if necessary.

Figure 23 Color code definition

54 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Operator

Use the arrow to enter the name of the operator carrying out the
measurement.

Job Id

Use the arrow to enter a description of the measurement to be
performed.

Comment

In contrast to the other data in this menu, the comment is specific to a fiber.
This line is thus used to enter a new comment and not to display it. The
comment appears at the top of the screen, with the other parameters of the
fiber.
This comment will remain available for the next acquisition, unless it is
deleted. It is also saved when a trace is saved with a comment.

Configuring the File parameters

The File storage parameters must be also configured, in order to define
how the results traces will be saved onto the T-BERD/MTS.

In the Setup page, press File softkey (if one parameter is selected in the
current screen, press Top Menu soft key to display the right menu keys
and click on File).

NOTE

The softkey Copy File/Link To all is displayed when one param-
eter is selected in the Link or File Setup page and when the Pow­ermeter or Source function is active.

It allows to apply the Link and File configuration parameters of
the current applications to all the other active Fiber Optic applica­tions (powermeter, and source).

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Chapter 3 Reflectometry measurements

Predefined
parameters for
naming directory

Configuring the reflectometry test

Directory configuration

Dir. Naming

Use the arrow to enter the directory name and path:

In the edition keypad, enter a name manually for the file and/or use
the predefined parameters available (Cable_Id, Fiber_Num...).
Then, press Enter to validate.

Example: disk/OTDR/Test

Figure 24 Directory - Edition keypad

or

Press Default Filename to apply the name by default to the file:

harddisk/[Cable_Id]

Press Clear and validate (Enter key) in order to define the [Current
directory] selected as directory for saving measurements.

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Chapter 3 Reflectometry measurements

Predefined
parameters for
naming files

Configuring the reflectometry test

Dir

This parameter cannot be configured, and display the directory selected by
default into which the file(s) will be saved.

Result storage

Filenaming

Select Filenaming parameter and press the right arrow key to modify the
name of the file for the result trace.

In the edition keypad, enter a name manually for the file and/or use
the predefined parameters available (Cable_Id, Fiber_Num...).
Then, press Enter to validate.

Figure 25 Filenaming - Edition keypad

or

Press Default Filename to apply the name by default to the file:

Fiber

[Cable_Id][Fiber_Num]_[Lambda]_[Direc-

tion][Pulse]

The name of the file is displayed in grey under Filenaming parameter

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Chapter 3 Reflectometry measurements

Configuring the reflectometry test

File Content

In this parameter, select the file content for traces saving:

One Trace in case of traces in overlay, each trace is saved in a

distinct file (.sor extension).

All Traces in case of traces in overlay, all traces are saved in one

single file (.msor extension).

NOTE

This parameter is not available with RDZ application (see

“Reduced Dead Zone OTDR application” on page 175).

Auto Store

Select Yes to store automatically the trace or traces resulting from each
acquisition according to the filenaming rules.

Report Configuration

A report can be generated from the OTDR results page at the same time
as the trace saving (see “Saving the trace(s) and generating a report” on

page 111).

The report configuration is performed form the File Setup page

Report As

Select the report format to be generated: Txt / Pdf or All (pdf + txt format).

Select No if no report must be generated.

Report Layout

This parameter allows to define the report page setting:

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Chapter 3 Reflectometry measurements

Configuring the reflectometry test

Standard in multi-traces display, one report page is generated for

each trace.

Consolidated in multi-traces display, one report page is generated for all

traces

Report naming

Select Report naming parameter and press the right arrow key to modify
the name of the report file for the result trace.

In the edition keypad, enter a name manually for the file and press Enter to
validate.

Include Microscope Image

In the report page, an image of the scope test result can be displayed on
the upper part of the report. Select Yes to include the scope test result
image into the report.

NOTE

This parameter is not available if the report format selected is a
Txt file.

Configuration in Test Auto mode

The Tes t A u t o key imposes the parameters for acquisition, measurement
and display of results defined as default settings in factory.

ACQUISITION Acquisition Laser All

Acquisition Auto

Time Auto

Smart Acq No

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Chapter 3 Reflectometry measurements

Configuring the reflectometry test

OTDR Connector Test Yes & Cont

Launch Cable Launch Cable End No

Launch Cable Start No

ALARMS Alarms Alarm Level None

A

NALYSIS Parameters Section Attenuation dB/km

Section Length Yes

Index of Refraction G652 G657

Scatter Coefficient Auto

Results on trace Graphics

Event Notes No

Measurement OTDR Connector

No

Meas

Number of Splitters None

Splice Auto

Reflectance All

Ghost No

Fiber End Auto

Bend Auto

Event After Fiber End No

Total Loss Before evt.

LINK Link Description Change Fiber Nr Increment

F

ILE Dir. Naming [Current Dir.]

File configura­tion

Filenaming Auto filenam-

ing

Fiber[Cable_Id][Fiber_Num]_[Lambda]_[Direc­tion]

Auto Store Yes

60 User Manual 78000010220 Rev. 023

Chapter 3 Reflectometry measurements

Directory into
which file is saved

Configuring the reflectometry test

Saving OTDR configuration in a file

Once File and Measurement parameters have been configured, those
parameters can be kept in memory and saved in a configuration file.

This configuration file can then be recalled in two cases:

• in order to be applied when acquisition in Smart Test mode is
performed.

• in order to be recalled for future acquisition in Expert OTDR

To save parameters in a configuration file:

Figure 26 Save Configuration file - Edition keypad

1 If necessary, press

SETUP to return to Setup page.

2 Select one parameter in one of the setup page (acquisition, link..)

3 Press Save Config. menu key

4 Enter a name for the configuration file using the edition keypad (max

20 characters).

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Chapter 3 Reflectometry measurements

Configuring the reflectometry test

NOTE

Configuration file is saved in the directory config, into the disk.

5 Press Enter to validate

A sound is emitted to indicate the file is saved.

The configuration file is saved with the extension ".fo_cfg" (icon ) and
can be recalled at any time from the Explorer page.

This configuration file can be selected in Smart Test (see “Selecting the

configuration file” on page 31) or loaded for Expert OTDR.

Loading an existing OTDR configuration file

To load a configuration file previously created or available in the T-BERD/
MTS and apply parameters to new OTDR Expert tests:

From the File Explorer page

1 Press FILE hard key

2 Select the configuration file desired

3 Press Load > Load Config.

• Press

SETUP hard key to display the OTDR acquisition parameters

saved in the selected configuration file.

You can modify some acquisition or file storage parameters, and save
them in a new configuration file (see “Saving OTDR configuration in a file”

on page 61).

From the Setup page

1 Select one header in either Setup page (Acquisition, Link, File...)

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Chapter 3 Reflectometry measurements

Configuration file will
be used for Expert
OTDR acquisition only

Configuration file will be
used for Expert OTDR
and Smart Test
acquisitions

The main parameters available in the selected configuration file are
displayed in the File signature.

Configuring the reflectometry test

2 Press Load Config. menu key.

The file Explorer page displays

3 Select the configuration file desired

4 Press Load Config. to load the configuration file for acquisition in

OTDR Expert mode.

A sound is emitted to confirm the loading.

The Setup screen is displayed again.

If the menu key Load as SMART Config. is pressed, the config­uration is applied for acquisition in OTDR Expert, and in Smart
Test mode too.

NOTE

Some configuration files are available into the equipment, in
disk/config.

Figure 27 Loading a configuration file

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Chapter 3 Reflectometry measurements

Traffic Detection and connection quality indicator

Traffic Detection and connection quality
indicator

Traffic Detection

Traffic on the fiber under test is automatically detected and reported.

1 Press the S

A message indicates there is traffic on the fiber and asks you if you
wish to continue or not:

• If you click on

• If you click on

NOTE

If the measurement is validated despite the traffic (key Y
next measurement will be automatically performed, even if traffic
is still detected on fiber.

If the measurement is cancelled (key N
pushed another time, the box asking if you wish to continue or
not is displayed.

The functioning of Traffic Detection is then indicated in the scaled down
representation of trace, on the upper left part of screen .

TART/STOP key to begin the measurement.

NO, the measurement is not launched.

YES, the measurement is performed, despite the traffic.

ES), the

O), and the START/STOP

Connection Quality indicator

An indicator of the state of the connection (Good / Bad) is given at the
beginning of an acquisition, whatever is the acquisition mode selected.

The connection quality indicator gives the following information:

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Table 3 Quality of connection

Chapter 3 Reflectometry measurements

Performing OTDR acquisitions

State

Good

Bad

Connection

The connection is OK

Possible causes of a bad result:

- There are several connectors close to the external connector of
the T-BERD/MTS.

- One of the connectors is dirty or badly connected. Replace the
launch cable, make the connection again properly or clean the con­nector of the OTDR or of the jumper.

- No fiber is connected.

If the state of the connection is bad, it is still possible to carry out a
measurement, but the results will not be very reliable.

NOTE

If the connection is bad, check and clean the connector / jumpers
(see

“Cleaning the universal connector” on page 21).

Battery saver

When running on battery, if no acquisition has been performed for two
minutes, the power supply of the module is cut off to save the battery.

Performing OTDR acquisitions

Once the configuration for acquisition and file storage has been defined,
the instrument is ready to launch an OTDR measurement.

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Chapter 3 Reflectometry measurements

Performing OTDR acquisitions

Acquisition in Real Time mode

Principle of Real Time mode

Acquisition in real time must not be used if a precise measurement is
required because of the high noise level, but it is sufficient for rapid optimi­zation of a connection and for observing a fiber in process of utilization.

Performing an acquisition in Real Time mode

To carry out an acquisition in real time, after selection of the requisite acqui­sition parameters (see “Configuring the Acquisition parameters” on

page 35):

• Hold the

START key down for about three seconds, to launch the

acquisition in real time, either in Smart Test or Expert OTDR mode,
whatever is the acquisition mode selected.

or If the Time parameter is defined with Real Time in Setup page in
Expert OTDR mode, press

The red

Testing indicator will go on to show that real time acquisition is in

START/STOP hard key.

progress. The trace acquired is displayed in real time.

An indicator of the state of the connection (Good/Bad) is displayed below
the trace.

NOTE

If the connection is bad, check and clean the connector / jump­ers.

Once S

66 User Manual 78000010220 Rev. 023

TART /STOP key is pressed, the acquisition in real time is launched.