EN IEC 62343:2023

Dynamic modules - Generic specification

IEC 62343:2023 is available as IEC 62343:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62343:2023 applies to all commercially available optical dynamic modules and devices. It describes the products covered by the IEC 62343 series, defines terminology, fundamental considerations and basic approaches. The object of this document is to: - establish uniform requirements for operation, reliability and environmental properties of dynamic modules (DMs) to be implemented in the appropriate DM standard, and - provide assistance to the purchaser in the selection of consistently high-quality DM products for their particular applications, as well as in the consultation of the appropriate specific DM standard(s). This document covers performance templates, performance standards, reliability qualification requirements, hardware and software interfaces and related testing methods. Since a dynamic module integrates an optical module/device, printed wiring board, and software/firmware, the standards developed in the series will mimic appropriate existing standards. On the other hand, since "dynamic module" is a relatively new product category, the dynamic module standards series will not be bound by the existing practices where requirements differ.The safety standards as related to dynamic modules are mostly optical power considerations, which is covered by the IEC 60825 series (see Clause 6). This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - addition of terms and definitions for optical multicast switches (3.8); - revision of Clause 4, listing the requirements for standards in the IEC 62343 series; - addition of Clause 6 (Safety requirements).

Dynamische Module - Fachgrundspezifikation

Modules dynamiques - Spécification générique

IEC 62343:2023 est disponible sous forme de IEC 62343:2023 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.IEC 62343:2023 s’applique à tous les dispositifs et modules dynamiques optiques disponibles dans le commerce. Elle décrit les produits couverts par la série IEC 62343, définit la terminologie, les considérations fondamentales et les approches de base. Le présent document a pour objets: - d’établir des exigences uniformes pour le fonctionnement, la fiabilité et les propriétés environnementales des modules dynamiques (DM) à intégrer dans la norme appropriée sur les modules dynamiques, et - d’aider l’acheteur à choisir des produits à modules dynamiques de haute qualité dans le cadre de ses applications particulières et à consulter les normes appropriées sur les modules dynamiques spécifiques. Le présent document couvre les modèles de performance, les normes de performance, les exigences sur la qualification de la fiabilité, les interfaces matérielles et logicielles et les méthodes d’essais associées. Puisqu’un module dynamique intègre un module ou un dispositif optique, une carte imprimée et un logiciel ou un microprogramme, les normes développées dans la série calquent des normes existantes appropriées. D’autre part, un "module dynamique" étant une catégorie de produit relativement nouvelle, la série de normes sur les modules dynamiques n’est pas limitée par les pratiques existantes dans lesquelles les exigences diffèrent. Les normes de sécurité se rapportant aux modules dynamiques sont principalement des considérations sur la puissance optique, qui sont traitées par la série IEC 60825 (voir l’Article 6). Cette troisième édition annule et remplace la deuxième édition parue en 2017. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: - ajout de termes et de définitions relatifs aux commutateurs optiques multidiffusions (3.8); - révision de l’Article 4 énumérant les exigences relatives aux normes de la série IEC 62343; - ajout de l’Article 6 (Exigences de sécurité).

Dinamični moduli - Splošna specifikacija (IEC 62343:2023)

General Information

• Status: Published
• Publication Date: 16-Feb-2023
• ICS: 33.180.01 - Fibre optic systems in general
• ICS: 33.180.99 - Other fibre optic equipment
• Technical Committee: CLC/SR 86C - Fibre optic systems and active devices
• Drafting Committee: IEC/SC 86C - IEC_SC_86C
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 17-Feb-2023
• Due Date: 29-Sep-2023
• Completion Date: 17-Feb-2023
• Ref Project: SIST EN IEC 62343:2023 - Dynamic modules - Generic specification (IEC 62343:2023)

Relations

• Replaces: EN 62343:2017 - Dynamic modules - General and guidance
• Effective Date: 21-Dec-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 62343:2023
01-april-2023
Dinamični moduli - Splošna specifikacija (IEC 62343:2023)
Dynamic modules - Generic specification (IEC 62343:2023)
Dynamische Module - Allgemeines und Leitfaden (IEC 62343:2023)
Modules dynamiques - Généralités et lignes directrices (IEC 62343:2023)
Ta slovenski standard je istoveten z: EN IEC 62343:2023
ICS:
33.180.01 Sistemi z optičnimi vlakni na Fibre optic systems in
splošno general
SIST EN IEC 62343:2023 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62343:2023
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SIST EN IEC 62343:2023
EUROPEAN STANDARD EN IEC 62343
NORME EUROPÉENNE
EUROPÄISCHE NORM February 2023
ICS 33.180.01; 33.180.99 Supersedes EN 62343:2017
English Version
Dynamic modules - Generic specification
(IEC 62343:2023)

Modules dynamiques - Spécification générique Dynamische Module - Fachgrundspezifikation

(IEC 62343:2023) (IEC 62343:2023)

This European Standard was approved by CENELEC on 2023-02-10. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 62343:2023 E
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SIST EN IEC 62343:2023
EN IEC 62343:2023 (E)
European foreword

The text of document 86C/1803/CDV, future edition 3 of IEC 62343, prepared by SC 86C "Fibre optic

systems and active devices" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel

vote and approved by CENELEC as EN IEC 62343:2023.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2023-11-10

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2026-02-10

document have to be withdrawn

This document supersedes EN 62343:2017 and all of its amendments and corrigenda (if any).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Any feedback and questions on this document should be directed to the users’ national committee. A

complete listing of these bodies can be found on the CENELEC website.
Endorsement notice

The text of the International Standard IEC 62343:2023 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standard indicated:

IEC 60825 (series) NOTE Approved as EN 60825 (series)
IEC 60876-1:2014 NOTE Approved as EN 60876-1:2014 (not modified)
IEC 61000 (series) NOTE Approved as EN IEC 61000 (series)
IEC 61290 (series) NOTE Approved as EN 61290 (series)
IEC 61291 (series) NOTE Approved as EN 61291 (series)
IEC 61300 (series) NOTE Approved as EN 61300 (series)
IEC 61300-3-38 NOTE Approved as EN 61300-3-38
IEC 61753 (series) NOTE Approved as EN 61753 (series)
IEC 62343 (series) NOTE Approved as EN IEC 62343 (series)
IEC 62343-1 (series) NOTE Approved as EN 62343-1 (series)
IEC 62343-2-1 NOTE Approved as EN IEC 62343-2-1
IEC 62343-3 (series) NOTE Approved as EN IEC 62343-3 (series)
IEC 62343-3-1:2016 NOTE Approved as EN 62343-3-1:2016 (not modified)
IEC 62343-3-2:2016 NOTE Approved as EN 62343-3-2:2016 (not modified)
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SIST EN IEC 62343:2023
EN IEC 62343:2023 (E)
IEC 62343-3-3:2020 NOTE Approved as EN IEC 62343-3-3:2020 (not modified)
IEC 62343-3-4:2018 NOTE Approved as EN IEC 62343-3-4:2018 (not modified)
IEC 62343-4 (series) NOTE Approved as EN 62343-4 (series)
IEC 62343-4-1:2016 NOTE Approved as EN 62343-4-1:2016 (not modified)
IEC 62343-5 (series) NOTE Approved as EN IEC 62343-5 (series)
IEC 62368 (series) NOTE Approved as EN IEC 62368 (series)
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SIST EN IEC 62343:2023
EN IEC 62343:2023 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),

the relevant EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available

here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-731 - International Electrotechnical Vocabulary - - -
Chapter 731: Optical fibre communication
IEC/TR 61931 - Fibre optic - Terminology - -
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SIST EN IEC 62343:2023
IEC 62343
Edition 3.0 2023-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Dynamic modules – Generic specification
Modules dynamiques – Spécification générique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.01; 33.180.99 ISBN 978-2-8322-6327-3

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 62343:2023
– 2 – IEC 62343:2023 © IEC 2023
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 7

3.1 General terms and definitions ................................................................................. 8

3.2 Dynamic module terms and definitions .................................................................... 8

3.3 Dynamic channel equalizer (DCE) terms and definitions ......................................... 9

3.4 Tuneable dispersion compensator (TDC) or dynamic chromatic dispersion

compensator (DCDC) terms and definitions ............................................................ 9

3.5 Dynamic gain tilt equalizer (DGTE) terms and definitions ...................................... 10

3.6 Optical channel monitor (OCM) terms and definitions ............................................ 10

3.7 Wavelength selective switch (WSS) terms and definitions ..................................... 14

3.8 Optical multicast switch (MCS) terms and definitions ............................................ 20

4 Requirements ................................................................................................................ 27

4.1 General ................................................................................................................. 27

4.2 Performance standards and performance specification templates ......................... 27

4.3 Quality assessment ............................................................................................... 28

4.4 Control interface standards ................................................................................... 28

4.5 Test methods ........................................................................................................ 28

4.6 Operating, storage and transportation conditions .................................................. 28

4.7 Product identification for storage and shipping ...................................................... 28

5 Electromagnetic compatibility (EMC) requirements ........................................................ 28

6 Safety requirements ...................................................................................................... 29

Bibliography .......................................................................................................................... 30

Figure 1 – Illustration of X-dB bandwidth ............................................................................... 15

Figure 2 – Illustration of adjacent channel crosstalk and adjacent channel isolation .............. 16

Figure 3 – Illustration of non-adjacent channel crosstalk ....................................................... 17

Figure 4 – Illustration of latency, rise, fall, bounce, and switching times ................................ 19

Figure 5 – Functional block diagram of the MCS ................................................................... 21

Figure 6 – Illustration of latency, rise, fall, bounce, and switching times ................................ 26

Table 1 – Document structure of the IEC 62343 series .......................................................... 27

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SIST EN IEC 62343:2023
IEC 62343:2023 © IEC 2023 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DYNAMIC MODULES – GENERIC SPECIFICATION
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their

preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

may participate in this preparatory work. International, governmental and non-governmental organizations liaising

with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence between

any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

rights. IEC shall not be held responsible for identifying any or all such patent rights.

IEC 62343 has been prepared by subcommittee 86C: Fibre optic systems and active devices,

of IEC technical committee 86: Fibre optics. It is an International Standard.

This third edition cancels and replaces the second edition published in 2017. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) addition of terms and definitions for optical multicast switches (3.8);

b) revision of Clause 4, listing the requirements for standards in the IEC 62343 series;

c) addition of Clause 6 (Safety requirements).
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SIST EN IEC 62343:2023
– 4 – IEC 62343:2023 © IEC 2023
The text of this International Standard is based on the following documents:
Draft Report on voting
86C/1803/CDV 86C/1827/RVC

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/publications.

A list of all parts of the IEC 62343 series, published under the general title Dynamic modules,

can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under webstore.iec.ch in the data related to the

specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST EN IEC 62343:2023
IEC 62343:2023 © IEC 2023 – 5 –
INTRODUCTION

This document applies to dynamic devices as defined in IEC TS 62538. This document contains

general guidance for the IEC 62343 series related to dynamic devices and definitions which

apply to dynamic devices. The dynamic module (DM), or device, has two distinguishing

characteristics: dynamic and module.

"Dynamic" highlights the functions of the products to include "tuning, varying, switching,

configuring, and other continuous optimization," often accomplished by electronics, firmware,

software or their combinations. The dynamic device usually has a certain level of intelligence

to monitor or measure its configuration or settings and make decisions for necessary

(optimization) actions. The behaviour of dynamic modules can be characterized by transient

characteristics as the dynamic module undergoes tuning, switching, configuring, and other

continuous optimization. Characterization of transient characteristics will be considered in

individual dynamic module standards.

"Module" defines that products covered by this document are the integration of active and

passive components (either or both), through interconnecting materials or devices. The

controlling electronics can be inside or outside the optical package that contains all or most of

the optical components and interconnection. The product can be a small printed wiring board

(PWB) or child-board with mounted optical module, or it can be a small box (e.g., housing) with

optical components and electronics enclosed. In the former case, it is more like an assembly

(i.e., generally not packaged in a box or housing) than a module (i.e., generally packaged in a

box or housing).

For historical reasons and convenience, a dynamic module or device is referred to as a dynamic

module in the IEC 62343 series.

The number of dynamic modules and devices is rapidly growing as optical communications

networks evolve. The following list provides some examples of the products covered by the

IEC 62343 series. It should be noted that the list is not exhaustive and the products to be

covered are not limited by the listed examples:
• channel gain equalizer;
• dynamic channel equalizer;
• dynamic gain tilt equalizer;
• dynamic slope equalizer;
• tuneable chromatic dispersion compensator;
• polarization mode dispersion compensator;
• reconfigurable optical add-drop multiplexer;
• switch with monitoring and controls;
• variable optical attenuator with monitoring and controls;
• optical channel monitor;
• wavelength selective switch;
• optical multicast switch.

The IEC 62343 series covers performance templates, performance standards, reliability

qualification requirements, hardware and software interfaces, and related testing methods.

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SIST EN IEC 62343:2023
– 6 – IEC 62343:2023 © IEC 2023

The structure of the IEC 62343 series, under the general title Dynamic modules, is as follows:

• IEC 62343-1 series Part 1: Performance standards
• IEC 62343-2 series Part 2: Reliability qualification
• IEC 62343-3 series Part 3: Performance specification templates
• IEC 62343-4 series Part 4: Software and hardware interface
• IEC 62343-5 series Part 5: Test methods
• IEC 62343-6 series Part 6: Design guidelines

A complete set of standards related to a dynamic module or device should include the following:

• optical performance standards;
• reliability qualification standards;
• optical performance specification templates;
• hardware and software interface standards;
• test methods;
• technical reports.

The safety standards related to dynamic modules are mostly optical power considerations,

which are covered by the IEC 60825 series.

Only those dynamic modules for which standards are complete or in preparation are included

in Clause 3. To reflect the rapidly growing market for dynamic modules, additional terms and

definitions will be added in subsequent revisions as the series expands.

It should be noted that optical amplifiers could be regarded as dynamic modules. They are not

included in the IEC 62343 series but are covered in their own series of IEC standards.

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SIST EN IEC 62343:2023
IEC 62343:2023 © IEC 2023 – 7 –
DYNAMIC MODULES – GENERIC SPECIFICATION
1 Scope

This document applies to all commercially available optical dynamic modules and devices. It

describes the products covered by the IEC 62343 series, defines terminology, fundamental

considerations and basic approaches.
The object of this document is to

• establish uniform requirements for operation, reliability and environmental properties of

dynamic modules (DMs) to be implemented in the appropriate DM standard, and

• provide assistance to the purchaser in the selection of consistently high-quality DM products

for their particular applications, as well as in the consultation of the appropriate specific DM

standard(s).

This document covers performance templates, performance standards, reliability qualification

requirements, hardware and software interfaces and related testing methods.

Since a dynamic module integrates an optical module/device, printed wiring board, and

software/firmware, the standards developed in the series will mimic appropriate existing

standards. On the other hand, since "dynamic module" is a relatively new product category, the

dynamic module standards series will not be bound by the existing practices where

requirements differ.

The safety standards as related to dynamic modules are mostly optical power considerations,

which is covered by the IEC 60825 series (see Clause 6).
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies.

For undated references, the latest edition of the referenced document (including any

amendments) applies.

IEC 60050-731, International Electrotechnical Vocabulary – Chapter 731: Optical fibre

communication (available at www.electropedia.org)
IEC TR 61931, Fibre optic – Terminology
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050-731,

IEC TR 61931, and the following apply.

ISO and IEC maintain terminology databases for use in standardization at the following

addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
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SIST EN IEC 62343:2023
– 8 – IEC 62343:2023 © IEC 2023

NOTE 1 Some terms and definitions included in this document were first published in

the IEC 62343 series. After publication of this document, these terms and definitions will be removed from the

IEC 62343 series when the series is revised, and reference will be made to IEC 62343.

NOTE 2 The terms and definitions listed in Clause 3 refer to the meaning of the terms and definitions used in the

specifications of dynamic modules. Only those parameters listed in the appropriate performance standard in the

IEC 62343-1 series and performance specification templates in the IEC 62343-3 series are intended to be specified.

NOTE 3 The list of parameter definitions for dynamic modules given in Clause 3 is divided into subclauses according

to the type of dynamic module.
3.1 General terms and definitions
3.1.1
optical dynamic device

optical device designed to monitor and control dynamically some characteristics of one or more

optical signals, by means of suitable electronic controls, in order to improve or to maintain

definite performances of the system in which it is intended to be inserted

Note 1 to entry: Said characteristics may include optical paths, optical intensities, spectral characteristics,

polarization states, dispersion, etc.

Note 2 to entry: Optical dynamic devices may comprise optical active and optical passive elements or components.

Note 3 to entry: The control/response time of optical dynamic devices is much larger than the signal time

characteristics and typically may range from few microseconds to tens of seconds.

[SOURCE: IEC TS 62538:2008, 2.1.1]
3.1.2
optical module

packaged integration of optical components and/or elements, accomplishing defined

functionality, typically repairable and re-workable

[SOURCE: IEC TS 62538:2008, 2.2.5, modified – The notes to entry have been omitted.]

3.2 Dynamic module terms and definitions
3.2.1
channel

signal at wavelength, λ, that corresponds to ITU grid (ITU-T Recommendation G.694.1) within

the range of operating wavelength range
3.2.2
operating wavelength range

specified range of wavelengths from λ to λ about a nominal operating wavelength λ ,

imin imax I

within which a dynamic optical module is designed to operate with a specified performance

3.2.3
channel frequency range

frequency range within which a device is expected to operate with a specified performance

Note 1 to entry: For a particular nominal channel central frequency, f , the channel frequency range is from

nomi

f = (f – ∆f ) to f = (f + ∆f ), where ∆f is the maximum channel central frequency deviation.

imin nomi max imax nomi max max
3.2.4
channel spacing

centre-to-centre difference in frequency (or wavelength) between adjacent channels in a device

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SIST EN IEC 62343:2023
IEC 62343:2023 © IEC 2023 – 9 –
3.3 Dynamic channel equalizer (DCE) terms and definitions
3.3.1
dynamic channel equalizer
DCE

device capable of transforming, by internal or external automatic control, a multichannel input

signal with time-varying averaged powers into an output signal in which all working channel

powers are nominally equal or are set for a required level of pre-emphasis

Note 1 to entry: A DCE may also provide the extinction of one or more of the input channels.

3.3.2
channel non-uniformity

difference between the powers of the channel with the most power (in dBm) and the channel

with the least power (in dBm)

Note 1 to entry: The channel non-uniformity applies to a multichannel signal across the operating wavelength range.

Note 2 to entry: Channel non-uniformity is expressed in dB.
3.3.3
in-band extinction ratio

difference, within the operating wavelength range, between the minimum power of the non-

extinguished channels (in dBm) and the maximum power of the extinguished channels (in dBm)

Note 1 to entry: In-band extinction ratio is expressed in dB.
3.3.4
out-of-band attenuation
attenuation of channels that fall outside of the operating wavelength range
Note 1 to entry: Out-of-band attenuation is expressed in dB.
3.3.5
ripple

peak-to-peak difference in insertion loss within a channel frequency (or wavelength) range

3.3.6
channel response time

elapsed time it takes a device to transform a channel from a specified initial power level to a

specified final power level desired state, when the resulting output channel non-uniformity

tolerance is met, measured from the time the actuation energy is applied or removed

3.4 Tuneable dispersion compensator (TDC) or dynamic chromatic dispersion
compensator (DCDC) terms and definitions
3.4.1
tuneable dispersion compensator
TDC
dynamic chromatic dispersion compensator
DCDC

two-port in-line device that is capable of transforming, by internal or external automatic control,

an input signal with time-varying dispersion into an output signal in which an output channel

dispersion value is set for a required level of value
3.4.2
insertion loss ripple

maximum peak-to-peak variation of the insertion loss within a channel frequency (or

wavelength) range
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SIST EN IEC 62343:2023
– 10 – IEC 62343:2023 © IEC 2023
3.4.3
dispersion tuning time

longest elapsed time it takes a module to change a dispersion setting from an arbitrary initial

dispersion value to a desired final dispersion value, when the resulting dispersion target

tolerance is met
3.5 Dynamic gain tilt equalizer (DGTE) terms and definitions
3.5.1
dynamic spectral equalizer
DSE

two port in-line dynamic module that converts an input signal with time-varying spectral shape

into an output signal in which spectral shape is nominally flat, or is set for a required spectral

shape for pre-emphasis
3.5.2
dynamic gain tilt equalizer
DGTE

dynamic spectral equalizer used in an optical amplifier that converts input signals with time-

varying gain tilt into output signals in which gain tilt is nominally flat, or is set for a required gain

tilt
3.5.3
dynamic gain tilt range

difference between the maximum and minimum deviation of attenuation over operating

wavelength range, to which the dynamic gain tilt equalizer can be set
3.5.4
positive slope type
type of DGTE for which dynamic gain tilt range can be set for positive gain tilt
3.5.5
negative slope type
type of DGTE for which dynamic gain tilt range can be set for negative gain tilt
3.5.6
both slope type

type of DGTE to which dynamic gain tilt range can be set for both positive and negative gain tilt

3.5.7
slope linearity

maximum deviation of attenuation between the spectral shape by dynamic gain tilt equalizer

and linear slope over the operating wavelength range
3.5.8
response time
...

SLOVENSKI STANDARD
oSIST prEN IEC 62343:2022
01-oktober-2022
Dinamični moduli - Splošna specifikacija
Dynamic modules - Generic specification
Dynamische Module - Allgemeines und Leitfaden
Modules dynamiques - Généralités et lignes directrices
Ta slovenski standard je istoveten z: prEN IEC 62343:2022
ICS:
33.180.01 Sistemi z optičnimi vlakni na Fibre optic systems in
splošno general
oSIST prEN IEC 62343:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 62343:2022
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oSIST prEN IEC 62343:2022
86C/1803/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62343 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-07-08 2022-09-30
SUPERSEDES DOCUMENTS:
86C/1769/CD, 86C/1788/CC
IEC SC 86C : FIBRE OPTIC SYSTEMS AND ACTIVE DEVICES
SECRETARIAT: SECRETARY:
United States of America Mr Fred Heismann
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of

which they are aware and to provide supporting documentation.
TITLE:
Dynamic modules - Generic specification
PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:

Please note that the title of this document has changed from "Dynamic modules - General and

guidance" to "Dynamic modules - Generic specification"

Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this

electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.

You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without

permission in writing from IEC.
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1 CONTENTS

3 FOREWORD ........................................................................................................................... 3

4 INTRODUCTION ..................................................................................................................... 5

5 1 Scope .............................................................................................................................. 7

6 2 Normative references ...................................................................................................... 7

7 3 Terms and definitions ...................................................................................................... 7

8 3.1 General terms and definitions ................................................................................. 8

9 3.2 Dynamic module terms and definitions .................................................................... 8

10 3.3 Dynamic channel equalizer (DCE) terms and definitions ......................................... 9

11 3.4 Tuneable dispersion compensator (TDC) or dynamic chromatic dispersion

12 compensator (DCDC) terms and definitions ............................................................ 9

13 3.5 Dynamic gain tilt equalizer (DGTE) terms and definitions ...................................... 10

14 3.6 Optical channel monitor (OCM) terms and definitions ............................................ 10

15 3.7 Wavelength selective switch (WSS) terms and definitions ..................................... 14

16 3.8 Optical multicast switch (MCS) terms and definitions ............................................ 21

17 4 Requirements ................................................................................................................ 29

18 4.1 General ................................................................................................................. 29

19 4.2 Performance standards and performance specification templates ......................... 29

20 4.3 Quality assessment ............................................................................................... 30

21 4.4 Control interface standards ................................................................................... 30

22 4.5 Test methods ........................................................................................................ 30

23 4.6 Operating, storage and transportation conditions .................................................. 30

24 4.7 Product identification for storage and shipping ...................................................... 30

25 5 Electromagnetic compatibility (EMC) requirements ........................................................ 30

26 6 Safety requirements ...................................................................................................... 30

27 Bibliography .......................................................................................................................... 31

29 Figure 1 – Illustration of X-dB bandwidth ............................................................................... 15

30 Figure 2 – Illustration of adjacent channel crosstalk and adjacent channel isolation .............. 16

31 Figure 3 – Illustration of non-adjacent channel crosstalk ....................................................... 17

32 Figure 4 – Illustration of latency, rise, fall, bounce, and switching times ................................ 20

33 Figure 5 – Functional block diagram of the MCS ................................................................... 22

34 Figure 6 – Illustration of latency, rise, fall, bounce, and switching times ................................ 28

36 Table 1 – Document structure of IEC 62343 series ............................................................... 29

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38 INTERNATIONAL ELECTROTECHNICAL COMMISSION
39 ____________
41 DYNAMIC MODULES – GENERIC SPECIFICATION
44 FOREWORD

45 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

46 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

47 international co-operation on all questions concerning standardization in the electrical and electronic fields. To

48 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

49 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

50 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

51 in the subject dealt with may participate in this preparatory work. International, governmental and non-

52 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

53 with the International Organization for Standardization (ISO) in accordance with conditions determined by

54 agreement between the two organizations.

55 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

56 consensus of opinion on the relevant subjects since each technical committee has representation from all

57 interested IEC National Committees.

58 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

59 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

60 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

61 misinterpretation by any end user.

62 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

63 transparently to the maximum extent possible in their national and regional publications. Any divergence

64 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

65 the latter.

66 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

67 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

68 services carried out by independent certification bodies.

69 6) All users should ensure that they have the latest edition of this publication.

70 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

71 members of its technical committees and IEC National Committees for any personal injury, property damage or

72 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

73 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

74 Publications.

75 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

76 indispensable for the correct application of this publication.

77 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

78 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

79 IEC 62343 has been prepared by subcommittee 86C: Fibre optic systems and active devices,

80 of IEC technical committee 86: Fibre optics. It is an International Standard.

81 This third edition cancels and replaces the second edition published in 2017. This edition

82 constitutes a technical revision.

83 This edition includes the following significant technical changes with respect to the previous

84 edition:

85 a) addition of terms and definitions for optical multicast switches (Clause 3.8);

86 b) revision of Clause 4, listing the requirements for standards in the IEC 62343 series;

87 c) addition of Clause 6 (Safety requirements).
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88 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD

90 Full information on the voting for its approval can be found in the report on voting indicated in

91 the above table.

92 The language used for the development of this International Standard is English.

93 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

94 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,

95 available at www.iec.ch/members_experts/refdocs. The main document types developed by

96 IEC are described in greater detail at www.iec.ch/standardsdev/publications.

97 A list of all parts of the IEC 62343 series, published under the general title Dynamic modules,

98 can be found on the IEC website.

99 The committee has decided that the contents of this document will remain unchanged until the

100 stability date indicated on the IEC website under webstore.iec.ch in the data related to the

101 specific document. At this date, the document will be
102 • reconfirmed,
103 • withdrawn,
104 • replaced by a revised edition, or
105 • amended.
106
107
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108 INTRODUCTION

109 IEC 62343 applies to dynamic devices as defined in IEC TS 62538. This document contains

110 general guidance for the IEC 62343 series related to dynamic devices and definitions which

111 apply to dynamic devices. The dynamic module (DM), or device, has two distinguishing

112 characteristics: dynamic and module.

113 "Dynamic" highlights the functions of the products to include "tuning, varying, switching,

114 configuring, and other continuous optimization," often accomplished by electronics, firmware,

115 software or their combinations. The dynamic device usually has a certain level of intelligence

116 to monitor or measure its configuration or settings and make decisions for necessary

117 (optimization) actions. The behaviour of dynamic modules can be characterized by transient

118 characteristics as the dynamic module undergoes tuning, switching, configuring, and other

119 continuous optimization. Characterization of transient characteristics will be considered in

120 individual dynamic module standards.

121 "Module" defines that products covered by this standard are the integration of active and

122 passive components (either or both), through interconnecting materials or devices. The

123 controlling electronics can be inside or outside the optical package that contains all or most of

124 the optical components and interconnection. The product can be a small printed wiring board

125 (PWB) or child-board with mounted optical module, or it can be a small box (e.g., housing)

126 with optical components and electronics enclosed. In the former case, it is more like an

127 assembly (i.e., generally not packaged in a box or housing) than a module (i.e., generally

128 packaged in a box or housing).

129 For historical reasons and convenience, a dynamic module or device is referred to as a

130 dynamic module in the IEC 62343 series.

131 The number of dynamic modules and devices is rapidly growing as optical communications

132 networks evolve. The following list provides some examples of the products covered by the

133 IEC 62343 series. It should be noted that the list is not exhaustive and the products to be

134 covered are not limited by the listed examples:
135 • channel gain equalizer;
136 • dynamic channel equalizer;
137 • dynamic gain tilt equalizer;
138 • dynamic slope equalizer;
139 • tuneable chromatic dispersion compensator;
140 • polarization mode dispersion compensator;
141 • reconfigurable optical add-drop multiplexer;
142 • switch with monitoring and controls;
143 • variable optical attenuator with monitoring and controls;
144 • optical channel monitor;
145 • wavelength selective switch;
146 • optical multicast switch.

147 The IEC 62343 series covers performance templates, performance standards, reliability

148 qualification requirements, hardware and software interfaces, and related testing methods.

149 The structure of the IEC 62343 series, under the general title Dynamic modules, is as follows:

150 • 62343-1 series Part 1: Performance standards
151 • 62343-2 series Part 2: Reliability qualification
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152 • 62343-3 series Part 3: Performance specification templates
153 • 62343-4 series Part 4: Software and hardware interface standards
154 • 62343-5 series Part 5: Test methods
155 • 62343-6 series Part 6: Design guidelines

156 A complete set of standards related to a dynamic module or device should include the

157 following:
158 • optical performance standards;
159 • reliability qualification standards;
160 • optical performance specification templates;
161 • hardware and software interface standards;
162 • test methods;
163 • technical reports.

164 The safety standards related to dynamic modules are mostly optical power considerations,

165 which are covered by IEC TC 76: Optical radiation safety and laser equipment.

166 Only those dynamic modules for which standards are complete or in preparation are included

167 in Clause 3. To reflect the rapidly growing market for dynamic modules, additional terms and

168 definitions will be added in subsequent revisions as the series expands.

169 It should be noted that optical amplifiers could be regarded as dynamic modules. They are not

170 included in the IEC 62343 series but are covered in their own series of IEC standards.

171
172
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173 DYNAMIC MODULES – GENERIC SPECIFICATION
174
175 1 Scope

176 IEC 62343 applies to all commercially available optical dynamic modules and devices. It

177 describes the products covered by the IEC 62343 series, defines terminology, fundamental

178 considerations and basic approaches.
179 The object of this document is to

180 • establish uniform requirements for operation, reliability and environmental properties of

181 dynamic modules (DMs) to be implemented in the appropriate DM standard, and

182 • provide assistance to the purchaser in the selection of consistently high-quality DM

183 products for his particular applications, as well as in the consultation of the appropriate

184 specific DM standard(s).

185 This document covers performance templates, performance standards, reliability qualification

186 requirements, hardware and software interfaces and related testing methods.

187 Since a dynamic module integrates an optical module/device, printed wiring board, and

188 software/firmware, the standards developed in the series will mimic appropriate existing

189 standards. On the other hand, since "dynamic module" is a relatively new product category,

190 the dynamic module standards series will not be bound by the existing practices where

191 requirements differ.

192 The safety standards as related to dynamic modules are mostly optical power considerations,

193 which is covered by IEC TC 76: Optical radiation safety and laser equipment (see Clause 6).

194 2 Normative references

195 The following documents are referred to in the text in such a way that some or all of their

196 content constitutes requirements of this document. For dated references, only the edition

197 cited applies. For undated references, the latest edition of the referenced document (including

198 any amendments) applies.

199 IEC 60050-731, International Electrotechnical Vocabulary – Chapter 731: Optical fibre

200 communication
201 IEC TR 61931, Fibre optic – Terminology

202 IEC Guide 107, Electromagnetic compatibility – Guide to the drafting of electromagnetic

203 compatibility publications
204 3 Terms and definitions

205 For the purposes of this document, the terms and definitions given in IEC 60050-731, IEC TR

206 61931, and the following apply.

207 ISO and IEC maintain terminological databases for use in standardization at the following

208 addresses:
209 • IEC Electropedia: available at http://www.electropedia.org/
210 • ISO Online browsing platform: available at http://www.iso.org/obp
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211 NOTE 1 Some terms and definitions included in this document were first published in

212 IEC 62343 (all parts). After publication of this document, these terms and definitions will be removed from

213 IEC 62343 (all parts) when the series is revised, and reference will be made to IEC 62343.

214 NOTE 2 The terms and definitions listed in Clause 3 refer to the meaning of the terms and definitions used in the

215 specifications of dynamic modules. Only those parameters listed in the appropriate performance standard in

216 IEC 62343-1 (all parts) and performance specification templates in IEC 62343-3 (all parts) are intended to be

217 specified.

218 NOTE 3 The list of parameter definitions for dynamic modules given in Clause 3 is divided into subclauses

219 according to the type of dynamic module.
220 3.1 General terms and definitions
221 3.1.1
222 optical dynamic device

223 optical device designed to monitor and control dynamically some characteristics of one or

224 more optical signals, by means of suitable electronic controls, in order to improve or to

225 maintain definite performances of the system in which it is intended to be inserted

226 Note 1 to entry: Said characteristics may include optical paths, optical intensities, spectral characteristics,

227 polarization states, dispersion, etc.

228 Note 2 to entry: Optical dynamic devices may comprise optical active and optical passive elements or

229 components.

230 Note 3 to entry: The control/response time of optical dynamic devices is much larger than the signal time

231 characteristics and typically may range from few microseconds to tens of seconds.

232 [SOURCE: IEC TS 62538:2008, 2.1.1]
233 3.1.2
234 optical module

235 packaged integration of optical components and/or elements, accomplishing defined

236 functionality, typically repairable and re-workable

237 [SOURCE: IEC TS 62538:2008, 2.2.5, modified – The notes to entry have been omitted.]

238 3.2 Dynamic module terms and definitions
239 3.2.1
240 channel

241 signal at wavelength, λ, that corresponds to ITU grid (ITU-T Recommendation G.694.1) within

242 the range of operating wavelength range
243 [SOURCE: IEC 62343-3-3:2014, 3.4]
244 3.2.2
245 operating wavelength range

246 specified range of wavelengths from λ to λ about a nominal operating wavelength λ ,

imin imax I

247 within which a dynamic optical module is designed to operate with a specified performance

248 3.2.3
249 channel frequency range

250 frequency range within which a device is expected to operate with a specified performance

251 Note 1 to entry: For a particular nominal channel central frequency, f , this frequency range is from

nomi

252 f = (f - ∆f ) to f = (f + ∆f ), where ∆f is the maximum channel central frequency deviation.

imin nomi max imax nomi max max
253 3.2.4
254 channel spacing

255 centre-to-centre difference in frequency (or wavelength) between adjacent channels in a

256 device
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257 3.3 Dynamic channel equalizer (DCE) terms and definitions
258 3.3.1
259 dynamic channel equalizer
260 DCE

261 device capable of transforming, by internal or external automatic control, a multichannel input

262 signal with time-varying averaged powers into an output signal in which all working channel

263 powers are nominally equal or are set for a required level of pre-emphasis

264 Note 1 to entry: This device may also provide the extinction of one or more of the input channels.

265 3.3.2
266 channel non-uniformity

267 difference between the powers of the channel with the most power (in dBm) and the channel

268 with the least power (in dBm)

269 Note 1 to entry: This applies to a multichannel signal across the operating wavelength range.

270 Note 2 to entry: Channel non-uniformity is expressed in dB.
271 3.3.3
272 in-band extinction ratio

273 within the operating wavelength range, the difference between the minimum power of the non-

274 extinguished channels (in dBm) and the maximum power of the extinguished channels (in

275 dBm)
276 Note 1 to entry: In-band extinction ratio is expressed in dB.
277 3.3.4
278 out-of-band attenuation
279 attenuation of channels that fall outside of the operating wavelength range
280 Note 1 to entry: Out-of-band attenuation is expressed in dB.
281 3.3.5
282 ripple

283 peak-to-peak difference in insertion loss within a channel frequency (or wavelength) range

284 3.3.6
285 channel response time

286 elapsed time it takes a device to transform a channel from a specified initial power level to a

287 specified final power level desired state, when the resulting output channel non-uniformity

288 tolerance is met, measured from the time the actuation energy is applied or removed

289 3.4 Tuneable dispersion compensator (TDC) or dynamic chromatic dispersion
290 compensator (DCDC) terms and definitions
291 3.4.1
292 tuneable dispersion compensator
293 TDC
294 dynamic chromatic dispersion compensator
295 DCDC

296 two-port in-line device that is capable of transforming, by internal or external automatic

297 control, an input signal with time-varying dispersion into an output signal in which an output

298 channel dispersion value is set for a required level of value
299 3.4.2
300 insertion loss ripple

301 maximum peak-to-peak variation of the insertion loss within a channel frequency (or

302 wavelength) range
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303 3.4.3
304 dispersion tuning time

305 longest elapsed time it takes a module to change a dispersion setting from an arbitrary initial

306 dispersion value to a desired final dispersion value, when the resulting dispersion target

307 tolerance is met
308 3.5 Dynamic gain tilt equalizer (DGTE) terms and definitions
309 3.5.1
310 dynamic spectral equalizer
311 DSE

312 two port in-line dynamic module that converts an input signal with time-varying spectral shape

313 into an output signal in which spectral shape is nominally flat, or is set for a required spectral

314 shape for pre-emphasis
315 3.5.2
316 dynamic gain tilt equalizer
317 DGTE

318 dynamic spectral equalizer used in an optical amplifier that converts input signals with time-

319 varying gain tilt into output signals in which gain tilt is nominally flat, or is set for a required

320 gain tilt
321 3.5.3
322 dynamic gain tilt range

323 difference between the maximum and minimum deviation of attenuation over operating

324 wavelength range, to which the dynamic gain tilt equalizer can be set
325 3.5.4
326 positive slope type

327 type of DGTE for which dynamic gain tilt range can be set for positive gain tilt

328 3.5.5
329 negative slope type

330 type of DGTE for which dynamic gain tilt range can be set for negative gain tilt

331 3.5.6
332 both slope type

333 type of DGTE to which dynamic gain tilt range can be set for both positive and negative gain

334 tilt
335 3.5.7
336 slope linearity

337 maximum deviation of attenuation between the spectral shape by dynamic gain tilt equalizer

338 and linear slope over the operating wavelength range
339 3.5.8
340 response time

341 longest elapsed time it takes a dynamic gain tilt equalizer to change a gain tilt setting from an

342 arbitrary initial gain tilt value to a desired final gain tilt value, when the resulting gain tilt target

343 tolerance is met
344 3.6 Optical channel monitor (OCM) terms and definitions
345 3.6.1
346 input channel plan
347 entire set of ITU channels on which the optical channel monitor is reporting
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348 3.6.2
349 input channel frequency spacing tolerance

350 centre-to-centre difference in frequency (or wavelength) between adjacent channels in a

351 device
352 3.6.3
353 input channel power dynamic range

354 full range of input power per channel between the saturation and sensitivity limits

355 3.6.4
356 input channel non-uniformity

357 difference between the powers of the channel with the most power (in dBm) and the channel

358 with the least power (in dBm) during one measurement within the response time

359 Note 1 to entry: This applies to a multichannel signal across the operating wavelength range.

360 Note 2 to entry: Input channel non-uniformity is expressed in dB.
361 3.6.5
362 input adjacent channel non-uniformity

363 difference between the powers of adjacent channels present during one measurement within

364 the response time

365 Note 1 to entry: This applies to a multichannel signal across the operating wavelength range.

366 Note 2 to entry: In-band extinction ratio is expressed in dB.
367 3.6.6
368 input channel non-uniformity for channel identification

369 difference between the powers of the channel with the most power and the channel with the

370 least power during one measurement within the response time for positively identifying all

371 channels present and not falsely identifying channels that are not present

372 Note 1 to entry: This applies to a multichannel signal across the operating wavelength range.

373 Note 2 to entry: In-band extinction ratio is expressed in dB.
374 3.6.7
375 input adjacent channel non-uniformity for channel identification

376 difference between the powers of adjacent channels present during one measurement within

377 the response time for positively identifying all channels present and not falsely identifying

378 channels that are not present

379 Note 1 to entry: This applies to a multichannel signal across the operating wavelength range.

380 Note 2 to entry: In-band extinction ratio is expressed in dB.
381 3.6.8
382 input total band power dynamic range for channel measurements

383 full range of input total band power between the saturation or sensitivity limits of channel

384 measurements
385 3.6.9
386 input total band power dynamic range for total band power measurements

387 full range of input total band power between the saturation or sensitivity limits of total band

388 power measurements
389 3.6.10
390 input optical signal-no
...