IEC TS 62239-2:2017

Process management for avionics - Management plan - Part 2: Preparation and maintenance of an electronic COTS assembly management plan

IEC TS 62239-2:2017(E) applies to the development of COTS assembly management plans for the integration and management of electronic COTS assemblies in electronic systems used in the ADHP markets where reliability is generally critical. Depending on program or product line requirements and/or the technical characteristics of the electronic COTS assemblies and in agreement with the customer, the electronic COTS assembly management plans could consider tailoring the requirements of this document. Although developed for the avionics industry, this document can be applied by other high performance and high reliability industries at their discretion.

General Information

• Status: Published
• Publication Date: 20-Feb-2017
• ICS: 03.100.50 - Production. Production management
• ICS: 31.020 - Electronic components in general
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: TC 107 - Process management for avionics
• Current Stage: PPUB - Publication issued
• Start Date: 21-Feb-2017
• Completion Date: 21-Feb-2017

Standards Content (sample)

IEC TS 62239-2
Edition 1.0 2017-02
TECHNICAL
SPECIFICATION
Process management for avionics – Management plan –
Part 2: Preparation and maintenance of an electronic COTS assembly
management plan
IEC TS 62239-2:2017-02(en)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2017 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from

either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC

copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.
IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC

The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes

International Standards for all electrical, electronic and related technologies.
About IEC publications

The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the

latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org

The stand-alone application for consulting the entire The world's leading online dictionary of electronic and

bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in

Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional

documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical

iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary

The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and

variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of

committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been

and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc

details all new publications released. Available online and If you wish to give us your feedback on this publication or

also once a month by email. need further assistance, please contact the Customer Service

Centre: [e-mail].
---------------------- Page: 2 ----------------------
IEC TS 62239-2
Edition 1.0 2017-02
TECHNICAL
SPECIFICATION
Process management for avionics – Management plan –
Part 2: Preparation and maintenance of an electronic COTS assembly
management plan
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 03.100.50; 31.020; 49.060 ISBN 978-2-8322-3905-6

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

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC TS 62239-2:2017  IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

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

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

3 Terms, definitions and abbreviated terms ........................................................................ 7

3.1 Terms and definitions.............................................................................................. 8

3.2 Abbreviated terms ................................................................................................. 14

4 Technical requirements ................................................................................................. 15

4.1 General ................................................................................................................. 15

4.2 COTS assembly selection ..................................................................................... 16

4.2.1 General ......................................................................................................... 16

4.2.2 Design assurance .......................................................................................... 16

4.3 COTS assembly application .................................................................................. 16

4.3.1 General ......................................................................................................... 16

4.3.2 Functionality .................................................................................................. 17

4.3.3 COTS assembly compatibility ........................................................................ 17

4.3.4 Assembly materials........................................................................................ 17

4.3.5 Heat dissipation and cooling .......................................................................... 17

4.3.6 Integrity analysis ........................................................................................... 17

4.3.7 Reliability analysis ......................................................................................... 18

4.3.8 Useful life ...................................................................................................... 19

4.3.9 Storage life .................................................................................................... 19

4.3.10 Failure modes and effects analysis ................................................................ 19

4.3.11 Maintainability and testability ......................................................................... 19

4.3.12 Markings ........................................................................................................ 20

4.3.13 Safety ............................................................................................................ 20

4.3.14 Acceptance by the plan owner ....................................................................... 20

4.4 Electronic COTS assembly manufacturer selection ............................................... 20

4.4.1 General ......................................................................................................... 20

4.4.2 Electronic COTS assembly manufacturer quality system ................................ 22

4.4.3 Franchised distributor quality system ............................................................. 22

4.4.4 Electronic COTS assembly derating and stress analysis ................................ 22

4.4.5 Electronic COTS assembly qualification/characterization ............................... 22

4.4.6 Electronic components used in electronic COTS assembly:

Selection/qualification and acceptance .......................................................... 23

4.4.7 Electronic COTS assembly manufacturing and handling ................................ 23

4.4.8 Electronic COTS assembly qualification approval .......................................... 23

4.4.9 Electronic COTS assembly final acceptance .................................................. 23

4.4.10 Configuration management and documentation ............................................. 23

4.4.11 Plan owner documentation ............................................................................. 24

4.4.12 Electronic COTS assembly manufacturer documentation ............................... 25

4.4.13 Life cycle management .................................................................................. 25

4.4.14 COTS assembly availability risk management ................................................ 25

4.4.15 Equipment/system corrective action and product (electronic COTS

assembly) change notices ............................................................................. 26

4.4.16 Electronic COTS assembly substitution or alternative source ......................... 26

5 Plan administration ........................................................................................................ 26

---------------------- Page: 4 ----------------------
IEC TS 62239-2:2017  IEC 2017 – 3 –

5.1 Plan content and organization ............................................................................... 26

5.2 Plan terms, definitions and abbreviated terms ....................................................... 27

5.3 Plan focal point ..................................................................................................... 27

5.4 Plan references .................................................................................................... 27

5.5 Plan applicability ................................................................................................... 27

5.6 Plan implementation ............................................................................................. 27

5.7 Plan acceptance ................................................................................................... 27

Annex A (informative) Template for tailoring the requirements of IEC TS 62239-2 .............. 28

Annex B (informative) Cross-reference between IEC TS 62239-2 and SAE EIA-933B .......... 29

Annex C (informative) Electronic COTS assembly design guidelines and COTS

assembly manufacturer’s risk assessment ............................................................................ 31

C.1 COTS assembly design guidelines ........................................................................ 31

C.1.1 Open system architecture .............................................................................. 31

C.1.2 Risk assessment and performance ................................................................ 31

C.1.3 Assembly criticality ........................................................................................ 31

C.2 COTS assembly manufacturer’s risk assessment .................................................. 31

Annex D (informative) Typical electronic COTS assembly mitigation methods and

techniques ............................................................................................................................ 46

Annex E (informative) Requirements matrix for IEC TS 62239-2 ......................................... 54

Bibliography .......................................................................................................................... 61

Table 1 – Electronic COTS assembly manufacturer selection recommendations ................... 21

Table A.1 – Template for tailoring requirements of IEC TS 62239-2 ...................................... 28

Table B.1 – Cross-reference between IEC TS 62239-2 and SAE EIA-933B

requirements ......................................................................................................................... 29

Table C.1 – Template for electronic COTS assembly manufacturer’s risk assessment .......... 33

Table C.2 – Template for the plan owner’s mitigation and risk assessment of the

electronic COTS assembly manufacturer analysed in Table C.1 ............................................ 39

Table D.1 – Typical electronics COTS assembly mitigation methods and techniques ............ 46

Table E.1 – Requirements matrix for IEC TS 62239-2 ........................................................... 54

---------------------- Page: 5 ----------------------
– 4 – IEC TS 62239-2:2017  IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PROCESS MANAGEMENT FOR AVIONICS – MANAGEMENT PLAN –
Part 2: Preparation and maintenance of an electronic
COTS assembly management plan
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.

The main task of IEC technical committees is to prepare International Standards. In

exceptional circumstances, a technical committee may propose the publication of a technical

specification when

• the required support cannot be obtained for the publication of an International Standard,

despite repeated efforts, or

• the subject is still under technical development or where, for any other reason, there is the

future but no immediate possibility of an agreement on an International Standard.

Technical specifications are subject to review within three years of publication to decide

whether they can be transformed into International Standards.

IEC TS 62239-2, which is a technical specification, has been prepared by IEC Technical

Committee 107: Process management for avionics.
---------------------- Page: 6 ----------------------
IEC TS 62239-2:2017  IEC 2017 – 5 –
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
107/288/DTS 107/293/RVDTS

Full information on the voting for the approval of this technical specification can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 62239 series, published under the general title Process

management for avionics – Management plan, 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 "http://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.
A bilingual version of this publication may be issued at a later date.
---------------------- Page: 7 ----------------------
– 6 – IEC TS 62239-2:2017  IEC 2017
INTRODUCTION

The purpose of this document is to define the requirements for developing an electronic

commercial off the shelf (COTS) assembly management plan (CAMP), hereinafter also called

the plan, to assure customers that all of the electronic COTS assemblies in the equipment of

the plan owner are selected and applied in controlled processes, and that the technical

requirements detailed in this document are accomplished. In general the owners of an

electronic COTS assembly management plan are original (electronic) equipment
manufacturers (OEMs) and system integrators for the aerospace, defence and high
performance (ADHP) electronics industry.

The objective is to define and document, as necessary, processes to assure the adequacy of

electronic COTS assemblies selected for use in electronic systems. This document states

objectives to be accomplished; it does not specify how tasks are performed, specific data

collected or reports issued. Those who prepare plans in compliance with this document are

encouraged to document processes that are the most effective and efficient for them in

accomplishing the objectives of this document. In order to allow flexibility in implementing and

updating the documented processes, plan authors are encouraged to refer to their own

internal process documents instead of including detailed process documentation within their

plans.

Organizations that prepare such plans are called the plan owners and may prepare a single

plan, and use it for all relevant products supplied by the organization, or may prepare a

separate plan for each relevant product or customer.
---------------------- Page: 8 ----------------------
IEC TS 62239-2:2017  IEC 2017 – 7 –
PROCESS MANAGEMENT FOR AVIONICS – MANAGEMENT PLAN –
Part 2: Preparation and maintenance of an electronic
COTS assembly management plan
1 Scope

This part of IEC 62239, which is a technical specification, applies to the development of

COTS assembly management plans (CAMPs) for the integration and management of

electronic COTS assemblies (see 3.1.13 and 3.1.20) in electronic systems used in the ADHP

markets where reliability is generally critical.

NOTE 1 Best practices for managing the electronic components within the electronic assemblies are described in

IEC TS 62239-1 and SAE EIA-STD-4899 which describe the electronic component management program (ECMP).

In cases where the electronic components can be identified and managed at the component level, ECMP can be

considered as an option to manage the components.

NOTE 2 The distinction between an electronic component and an electronic assembly is provided by the

definitions in Clause 3. This distinction between an electronic component and an electronic assembly is not always

recognized by industry: for example, filters, contactors, power supply modules, relays, magnetic assemblies, etc.,

can be considered as either components or assemblies. In each application it is considered a best practice for the

user of this document to clarify this distinction.

Depending on program or product line requirements and/or the technical characteristics of the

electronic COTS assemblies and in agreement with the customer, the electronic COTS

assembly management plans (CAMPs) could consider tailoring the requirements of this

document. See Annex A.

Although developed for the avionics industry, this document can be applied by other high

performance and high reliability industries at their discretion.
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.
There are no normative references in this document.
3 Terms, definitions and abbreviated terms

For the purposes of this document, the following terms, definitions and abbreviated terms

apply.

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

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
---------------------- Page: 9 ----------------------
– 8 – IEC TS 62239-2:2017  IEC 2017
3.1 Terms and definitions
3.1.1
analysis

utilization of data, reference materials, actions, or test results previously obtained that can be

utilized for comparison to verify that a requirement, a characteristic, a parameter or a criteria

has been met
Note 1 to entry: Test results and associated data can be part of the analysis.
3.1.2
assembly characterization

process of testing and/or analysis of assembly capability when configuration control of the

assembly's internal details is inadequate to support traditional qualification
Note 1 to entry MIL-STD-1521 provides information on qualification purposes.
3.1.3
assembly manufacturer
organization responsible for the assembly specification and its production
3.1.4
assembly obsolescence management

range of management and engineering actions taken to avoid or resolve the effects of

assemblies not being procurable due to the manufacturer(s) ceasing production
3.1.5
assembly qualification

process used to demonstrate that the assembly is capable of meeting specified requirements

for all required conditions and environments

Note 1 to entry: This may include qualification beyond the assembly manufacturer’s limits for the assembly.

3.1.6
assembly quality assurance

all activities and processes providing adequate confidence that each individual assembly

meets specified requirements
3.1.7
assurance

result of planned and systematic actions necessary to provide adequate confidence and

evidence that a product or process satisfies given requirements
3.1.8
component
piece part

electrical, optical, electro/optical-mechanical or electronic device that is not subject to

disassembly without destruction or impairment of design use

Note 1 to entry: Resistors, capacitors, diodes, integrated circuits, hybrids, busbars, circuit cards/modules,

printers, laptop computers, disk drives, application specific integrated circuits, wound components and relays, etc.

are examples of component.
3.1.9
configuration

performance, functional, and physical attributes of an existing or planned product or a

combination of products

Note 1 to entry: Generally each variation of a product leads to a configuration change.

---------------------- Page: 10 ----------------------
IEC TS 62239-2:2017  IEC 2017 – 9 –
3.1.10
configuration change management
configuration control

systematic process which ensures that changes to released configuration documentation are

properly identified, documented, evaluated for effect, approved by an appropriate level of

authority, incorporated and verified

Note 1 to entry: Generally configuration management activity concerns systematic proposal, justification,

evaluation, coordination, and disposition of proposed changes, and implementation of all approved and released

changes into
• applicable configurations of a product,
• associated product information, and
• supporting and interfacing products and their associated product information.
3.1.11
configuration documentation

technical information whose purpose is to identify and define a product’s performance

functional and physical attributes (for example specifications, drawings)
3.1.12
configuration verification

action verifying that the product has achieved its required attributes (for example performance

requirements, functional constraints) and the product’s design is accurately documented

3.1.13
COTS product
commercial off-the-shelf product

one or more components, assembled and developed for multiple commercial consumers,

whose design and/or configuration is controlled by the manufacturer’s specification or industry

standard

Note 1 to entry: COTS products can include electronic components, subassemblies or assemblies, or top level

assemblies. Electronic COTS subassemblies or assemblies include circuit card assemblies, power supplies, hard

drives, and memory modules. Top-level COTS assemblies include a fully integrated rack of equipment such as raid

arrays, file servers to individual switches, routers, personal computers, or similar equipment.

[SOURCE: IEC TS 62668-1:2016, 3.1.3]
3.1.14
COTS assembly management plan
CAMP

document that defines the processes and practices for integrating and managing assemblies

in an equipment or system

Note 1 to entry: Generally, it addresses all relevant aspects of managing assemblies during system design,

development, production, and post-production support.
3.1.15
COTS assembly manufacturer

organization responsible for the specification and the production of the COTS assembly

Note 1 to entry: Generally the COTS assembly manufacturer controls the design and the configuration (even if

subcontracted), but it is not a rule in this market segment which is not fully dedicated to avionics, and the COTS

assembly manufacturer ensures generally also the sale of the product to the commercial market.

3.1.16
dependability

measure of consistency in meeting reliability, availability and obsolescence expectations,

using logistical support methods
---------------------- Page: 11 ----------------------
– 10 – IEC TS 62239-2:2017  IEC 2017
3.1.17
derating

design method which increases the operational margins of items by imposing modified item

usage limitations which are more restrictive than the usual or manufacturer’s item operational

ratings
3.1.18
design process
process of creating an item, equipment or system from a set of requirements

Note 1 to entry: In general, the design process follows a set of sub-processes such as requirements capture,

conceptual design, detailed design, implementation and production transition. Functional and physical verification,

as well as qualification, can be part of the design process which may be called in some organizations “development

process”.
3.1.19
durability analysis

structured analysis of the assembly’s response to the stresses resulting from operation,

maintenance, shipping, storage, and other activities throughout its specified life in order to

estimate its expected life
3.1.20
electronic assembly

electrical or electronic device that is not subject to disassembly without destruction or

impairment of design use

EXAMPLE Electronic circuit cards or modules, displays, storage devices, printers, laptop computer, electro/optical

devices, etc.
3.1.21
electronic equipment

functioning electronic device produced by the plan owner, which incorporates electronic

components

Note 1 to entry: End items, sub-assemblies, line-replaceable units and shop-replaceable units are examples of

electronic equipment.
[SOURCE: IEC TS 62239-1:2015, 3.1.20]
3.1.22
failure
inability of an item to perform a required function within specified limits
Note 1 to entry: A failure may be produced when a fault is encountered.
3.1.23
form

shape, size, dimensions, and other physically measurable parameters that uniquely

characterize a product
3.1.24
franchised distributor or agent

individual or corporate organization that is legally independent from the franchiser (in this

case the electronic component manufacturer or OCM) and agrees under contract to distribute

products using the franchiser’s name and sales network

Note 1 to entry: Distribution activities are carried out in accordance with standards set and controlled by the

franchiser. Shipments against orders placed can be despatched either direct from the OCM or the franchised

distributor or agent. In other words, the franchised distributor enters into contractual agreements with one or more

electronic component manufacturers to distribute and sell the said components. Distribution agreements may be

stipulated according to the following criteria: geographical area, type of clientele

...