IEC 62005-1 pdf download – Reliability of fibre optic interconnecting devices and passive components — Part 1: Introductory guide and definitions

IEC 62005-1 pdf download – Reliability of fibre optic interconnecting devices and passive components — Part 1: Introductory guide and definitions
1 scope
This part of lEC 62005 is a guide for assessing the reliability interconnecting devices andpassive components. lt is intended to be applied to all types of fibre-optic interconnectingdevices and passive optical components. The family of applicable types includes, but is notlimited to，passive devices used for connection，branching，switching，minimization ofreflection，control of powerlattenuation，dispersion compensation，modulation and wavelengthselection or filtering. Closures may be included in the future.
2 Normative references
The following normative documents contain provisions which，through reference in this text,constitute provisions of this part of lEC 62005.For dated references,subsequent amendmentsto,or revisions of，any of these publications do not apply.However，parties to agreementsbased on this part of iEc 62005 are encouraged to investigate the possibility of applying themost recent editions of the normative documents indicated below.For undated references, thelatest edition of the normative document referred to applies.Members of lEC and IS0 maintainregisters of currently valid International Standards.
IEC60050(191):1990，International ElectrotechnicalVocabulary (IEV) – Chapter 191:Dependability and quality of service
IEC 61300 (all parts)， Fibre optic interconnecting devices and passive components – Basic testand measurement procedures
3 overall view of the parts comprising IEC 62005
IEC62005-1 is intended to provide general guidance，with an overview and relevantterminology. It includes normative and informative references.
IEC 62005-2 is an application note to provide guidance in defining the reliability of passiveoptical devices. It provides advice on life testing procedures, the calculation of failure rates andthe presentation of results. In addition to the general guidance, a worked example is givenshowing the method of calculating the hazard rate for a device during its service lifetime, basedon accelerated life tests.
IEC 62005-3 focuses on the failure mechanisms associated with interconnecting devices andpassive optical components. In order to estimate the reliability by acceleration testing ofiEc 62005-2,it is very important to determine the dominant failure mechanism and relatedtests. IEC 62005-3 introduces a choice of relevant tests from the lEC 61300 series of fibreoptic tests for each known failure mechanism and failure effects related to certain failuremodes.
IEC 62005-4 describes the application of a screening process. It notes that a proper screening process is actually a process, not a test. As a process it shall be maintained and constantly validated to ensure that it achieves the purpose for which it was defined. This process is applied to a product in order to induce products with a known failure mechanism to fail in a controlled situation before the product is deployed in the field. IEC 62005-6 is intended to provide guidance on the use of field data for assessing the reliability performance of a device. IEC 62005-7 (under consideration) describes a common set of procedures for calculating the reliability of fibre optic connectors, splices and passive branching devices. The standard deals specifically with component reliability as calculated from life tests which are accelerated in some manner. Without common procedures, the calculation of device reliability is subject to numerous assumptions and approaches. The subsequent stated results may be ambiguous and difficult to interpret and may lead to mistaken conclusions.
4 Reliability approach A reliability approach, outlined in figure 1 , shows a process for defining and improving the reliability aspects of a passive optical component. Each element in the reliability approach plays an important role in the reliability assessment of a passive optical component. In addition, there are several interactions between the elements that lead to improved product and ultimately improved reliability.
Characterization, specification and qualification form minimal requirements of any new product. The product life cycle is an important consideration, particularly for rapidly developing products. Tests that take longer to perform than the current generation of product may have diminished value, but often provide information leading to future improvements. Once a new product has been sufficiently characterized, it is typically subjected to performance testing. The testing is based on specification requirements and the outcome may include product infant mortalities. This leads to pass/fail requirements and the need for standard test and measurement procedures.