We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
  • IEC 61280-4-1:2009

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    Add to Watchlist
    This Standard has been added successfully to your Watchlist
    Please visit My Watchlist to see all standards that you are watching.
    Please log in or to add this standard to your Watchlist.
    We could not add this standard to your Watchlist.
    Please retry or contact support for assistance.
    We could not add this standard to your Watchlist.
    Please retry or contact support for assistance.
    You have already added this standard to your Watchlist.
    Visit My Watchlist to view the full list.

    Fibre-optic communication subsystem test procedures - Part 4-1: Installed cable plant - Multimode attenuation measurement

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  31-12-2021

    Language(s):  English, English - French

    Published date:  10-06-2009

    Publisher:  International Electrotechnical Committee

    Add to Watchlist

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    1 Scope
    2 Normative references
    3 Terms, definitions, graphical symbols and acronyms
    4 Measurement methods
    5 Apparatus
    6 Procedures
    7 Calculations
    8 Documentation
    Annex A (normative) - One-cord reference method
    Annex B (normative) - Three-cord reference method
    Annex C (normative) - Two-cord reference method
    Annex D (normative) - Optical time domain reflectometer
    Annex E (normative) - Requirements for the source
                          characteristics for multimode
                          measurement
    Annex F (informative) - Measurement uncertainty examples
    Annex G (informative) - OTDR configuration information
    Annex H (informative) - Test cord insertion loss
                            verification
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 61280-4-1:2009 is applicable to the measurement of attenuation of installed fibre-optic cabling using multimode fibre, typically in lengths of up to 2 000 m. This cabling can include multimode fibres, connectors, adapters and splices. In this standard, the fibre types that are addressed include category A1a (50/125 m) and A1b (62,5/125 m) multimode fibres, as specified in IEC 60793-2-10. The attenuation measurements of the other multimode categories can be made, using the approaches of this standard, but the source conditions for the other categories have not been defined. The main changes with respect to the previous edition are:
    - An additional measurement method based on optical time domain reflectometry (OTDR) is documented, with guidance on best practice in using the OTDR and interpreting OTDR traces.
    - The requirement for the sources used to measure multimode fibres is changed from one based on coupled power ratio (CPR) and mandrel requirement to one based on measurements of the near field at the output of the launching test cord.
    - Highlighting the importance of, and giving guidance on, good measurement practices including cleaning and inspection of connector end faces.

    General Product Information - (Show below) - (Hide below)

    Committee TC 86/SC 86C
    Development Note A Bilingual edition has been published. (07/2010) Supersedes TIA TSB 178. (06/2012) Stability Date: 2017. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    17/30331301 DC : 0 BS ISO/IEC 14763-3 AMENDMENT 1 - INFORMATION TECHNOLOGY - IMPLEMENTATION AND OPERATION OF CUSTOMER PREMISES CABLING - PART 3: TESTING OF OPTICAL FIBRE CABLING
    BS EN IEC 60793-1-47:2018 OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS
    CEI EN 61746-2 : 2012 CALIBRATION OF OPTICAL TIME-DOMAIN REFLECTOMETERS (OTDR) - PART 2: OTDR FOR MULTIMODE FIBRES
    CEI EN 61300-1 : 2012 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - BASIC TEST AND MEASUREMENT PROCEDURES - PART 1: GENERAL AND GUIDANCE
    BS PD IEC TR 61282-15 : 2017 FIBRE OPTIC COMMUNICATION SYSTEM DESIGN GUIDES - PART 15: CABLE PLANT AND LINK - TESTING MULTI-FIBRE OPTIC CABLE PLANT TERMINATED WITH MPO CONNECTORS
    BS EN 60793-1-47 : 2009 OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS
    10/30217980 DC : 0 BS EN 61753-122-2 - FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - PERFORMANCE STANDARDS - PART 122-2: SIMPLEX AND DUPLEX CORDS WITH MULTIMODE FIBRE AND CYLINDRICAL FERRULE CONNECTORS FOR CATEGORY C - CONTROLLED ENVIRONMENT
    BS ISO/IEC 11801-1 : 2017 INFORMATION TECHNOLOGY - GENERIC CABLING FOR CUSTOMER PREMISES - PART 1: GENERAL REQUIREMENTS
    BS PD IEC TR 61282-11 : 2012 FIBRE OPTIC COMMUNICATION SYSTEM DESIGN GUIDES - PART 11: MULTIMODE LAUNCH CONDITIONS
    BS EN 62496-2-1 : 2011 OPTICAL CIRCUIT BOARDS - PART 2-1: MEASUREMENTS - OPTICAL ATTENUATION AND ISOLATION
    I.S. EN 62614:2010 FIBRE OPTICS - LAUNCH CONDITION REQUIREMENTS FOR MEASURING MULTIMODE ATTENUATION
    16/30337880 DC : 0 BS EN 60793-1-47 - OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS
    08/30175854 DC : DRAFT JAN 2008 IEC 61746-2 ED1 - CALIBRATION OF OPTICAL TIME-DOMAIN REFLECTOMETERS (OTDR) - PART 2: OTDR FOR MULTIMODE FIBRES
    11/30247511 DC : 0 BS EN 61753-124-2 - FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - PART 124-2: SIMPLEX AND DUPLEX REFERENCE CORDS WITH MULTIMODE FIBRE AND CYLINDRICAL FERRULE CONNECTORS FOR CATEGORY C - CONTROLLED ENVIRONMENT
    BS EN 62496-2:2017 Optical circuit boards. Basic test and measurement procedures General guidance for definition of measurement conditions for optical characteristics of optical circuit boards
    BS EN 61746-2 : 2011 CALIBRATION OF OPTICAL TIME-DOMAIN REFLECTOMETERS (OTDR) - PART 2: OTDR FOR MULTIMODE FIBRES
    14/30189466 DC : 0 BS IEC/IEEE 62582-5 ED 1.0 - NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - ELECTRICAL EQUIPMENT CONDITION MONITORING METHODS - PART 5: OPTICAL TIME DOMAIN REFLECTOMETRY
    BS EN IEC 61281-1 : 2018 FIBRE OPTIC COMMUNICATION SUBSYSTEMS - PART 1: GENERIC SPECIFICATION
    BS EN 62614 : 2010 FIBRE OPTICS - LAUNCH CONDITION REQUIREMENTS FOR MEASURING MULTIMODE ATTENUATION
    BS IEC/IEEE 62582-5:2015 Nuclear power plants. Instrumentation and control important to safety. Electrical equipment condition monitoring methods Optical time domain reflectometry
    07/30172946 DC : 0 BS EN 60793-1-47 IEC 60793-1-47 - OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS
    EN IEC 60793-1-47 : 2018 OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS (IEC 60793-1-47:2017)
    EN IEC 61281-1 : 2018 FIBRE OPTIC COMMUNICATION SUBSYSTEMS - PART 1: GENERIC SPECIFICATION (IEC 61281-1:2017)
    BS EN 61300-1:2016 (published 2016-12) Fibre optic interconnecting devices and passive components. Basic test and measurement procedures General and guidance
    10/30240040 DC : DRAFT DEC 2010 BS EN 60793-1-54 - OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION
    CEI EN 60793-1-47 : 2010 OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS
    CEI EN 60793-1-54 : 2013 OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION
    12/30266214 DC : 0 ISO/IEC CD 14763-3 - IMPLEMENTATION AND OPERATION OF CPC - PART 3: TESTING OF OPTICAL FIBRE CABLING (2ND EDITION)
    17/30315248 DC : 0 BS EN 62496-2 ED 1.0 - OPTICAL CIRCUIT BOARDS - BASIC TEST AND MEASUREMENT PROCEDURES - PART 2: GENERAL GUIDANCE FOR DEFINITION OF MEASUREMENT CONDITIONS FOR OPTICAL CHARACTERISTICS OF OPTICAL CIRCUIT BOARDS
    EN IEC 60793-1-54 : 2018 OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION (IEC 60793-1-54:2018)
    16/30325971 DC : 0 BS ISO/IEC 11801-1 - INFORMATION TECHNOLOGY - GENERIC CABLING FOR CUSTOMER PREMISES - PART 1: GENERAL REQUIREMENTS
    SAE AS 5675 : 2012 CHARACTERIZATION AND REQUIREMENTS FOR NEW AEROSPACE FIBER OPTIC CABLE ASSEMBLIES - JUMPERS, END FACE GEOMETRY, LINK LOSS MEASUREMENT, AND INSPECTION
    BS EN 60793-1-54 : 2018 OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION
    IEC TR 61282-15 : 1ED 2017 FIBRE OPTIC COMMUNICATION SYSTEM DESIGN GUIDES - PART 15: CABLE PLANT AND LINK - TESTING MULTI-FIBRE OPTIC CABLE PLANT TERMINATED WITH MPO CONNECTORS
    I.S. EN 60793-2-10:2017 OPTICAL FIBRES - PART 2-10: PRODUCT SPECIFICATIONS - SECTIONAL SPECIFICATION FOR CATEGORY A1 MULTIMODE FIBRE
    ISO/IEC 14165-115:2006 Information technology Fibre Channel Part 115: Physical Interfaces (FC-PI)
    CAN/CSA-ISO/IEC 14165-115:2006(R2016) INFORMATION TECHNOLOGY - FIBRE CHANNEL - PART 115: PHYSICAL INTERFACES (FC-PI)
    09/30203828 DC : 0 BS EN 62614 - LAUNCH CONDITION REQUIREMENTS FOR MEASURING MULTIMODE ATTENUATION
    IEC TR 61282-11:2012 Fibre optic communication system design guides - Part 11: Multimode launch conditions
    I.S. EN IEC 60793-1-54:2018 OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION
    CEI EN 62496-2 : 1ED 2017 OPTICAL CIRCUIT BOARDS - BASIC TEST AND MEASUREMENT PROCEDURES - PART 2: GENERAL GUIDANCE FOR DEFINITION OF MEASUREMENT CONDITIONS FOR OPTICAL CHARACTERISTICS OF OPTICAL CIRCUIT BOARDS
    NF EN 62614 : 2011 FIBRE OPTICS - LAUNCH CONDITION REQUIREMENTS FOR MEASURING MULTIMODE ATTENUATION
    CSA ISO/IEC 14165-115 : 2006 INFORMATION TECHNOLOGY - FIBRE CHANNEL - PART 115: PHYSICAL INTERFACES (FC-PI)
    IEC 60793-1-54 : 3.0 OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION
    I.S. EN IEC 60793-1-47:2018 OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS
    IEC 62496-2:2017 Optical circuit boards - Basic test and measurement procedures - Part 2: General guidance for definition of measurement conditions for optical characteristics of optical circuit boards
    ANSI INCITS 450 : 2009 INFORMATION TECHNOLOGY - FIBRE CHANNEL - PHYSICAL INTERFACE-4 (FC-PI-4)
    IEC PAS 62614 : 1.0 FIBRE OPTICS - LAUNCH CONDITION REQUIREMENTS FOR MEASURING MULTIMODE ATTENUATION
    I.S. EN 60793-1-47:2009 OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS
    BIS IS/IEC 60793-1-47 : 2009 OPTICAL FIBRES - PART 1: MEASUREMENT METHODS AND TEST PROCEDURES - SECTION 47: MACROBENDING LOSS
    ANSI INCITS 479 : 2011 INFORMATION TECHNOLOGY - FIBRE CHANNEL - PHYSICAL INTERFACE - 5 (FC-PI-5)
    BS PD IEC/TR 61282-14 : 2016 FIBRE OPTIC COMMUNICATION SYSTEM DESIGN GUIDES - PART 14: DETERMINATION OF THE UNCERTAINTIES OF ATTENUATION MEASUREMENTS IN FIBRE PLANTS
    ANSI INCITS 404 : 2006 INFORMATION TECHNOLOGY - FIBRE CHANNEL - PHYSICAL INTERFACES-2 (FC-PI-2)
    I.S. EN IEC 61281-1:2018 FIBRE OPTIC COMMUNICATION SUBSYSTEMS - PART 1: GENERIC SPECIFICATION
    I.S. EN 62496-2:2017 OPTICAL CIRCUIT BOARDS - BASIC TEST AND MEASUREMENT PROCEDURES - PART 2: GENERAL GUIDANCE FOR DEFINITION OF MEASUREMENT CONDITIONS FOR OPTICAL CHARACTERISTICS OF OPTICAL CIRCUIT BOARDS
    I.S. EN 62496-2-1:2011 OPTICAL CIRCUIT BOARDS - PART 2-1: MEASUREMENTS - OPTICAL ATTENUATION AND ISOLATION (IEC 62496-2-1:2011 (EQV))
    BS ISO/IEC 14763-3 : 2006 INFORMATION TECHNOLOGY - IMPLEMENTATION AND OPERATION OF CUSTOMER PREMISES CABLING - PART 3: TESTING OF OPTICAL FIBRE CABLING
    ISO/IEC 11801-1:2017 Information technology Generic cabling for customer premises Part 1: General requirements
    ISO/IEC TR 14763-3:2000 Information technology Implementation and operation of customer premises cabling Part 3: Acceptance testing for optical cabling
    ISO/IEC 14763-3:2014 Information technology Implementation and operation of customer premises cabling Part 3: Testing of optical fibre cabling
    CEI EN 62496-2-1 : 2012 OPTICAL CIRCUIT BOARDS - PART 2-1: MEASUREMENTS - OPTICAL ATTENUATION AND ISOLATION
    CSA ISO/IEC 14763-3 : 2015 INFORMATION TECHNOLOGY - IMPLEMENTATION AND OPERATION OF CUSTOMER PREMISES CABLING - PART 3: TESTING OF OPTICAL FIBRE CABLING
    EN 62496-2 : 2017 OPTICAL CIRCUIT BOARDS - BASIC TEST AND MEASUREMENT PROCEDURES - PART 2: GENERAL GUIDANCE FOR DEFINITION OF MEASUREMENT CONDITIONS FOR OPTICAL CHARACTERISTICS OF OPTICAL CIRCUIT BOARDS (IEC 62496-2:2017)
    IEEE 802.3 : 2012 ETHERNET - CORRIGENDUM 1: MULTI-LANE TIMESTAMPING
    EN 60793-2-10:2017 OPTICAL FIBRES - PART 2-10: PRODUCT SPECIFICATIONS - SECTIONAL SPECIFICATION FOR CATEGORY A1 MULTIMODE FIBRES (IEC 60793-2-10:2017)
    BS EN 60793-2-10:2017 (published 2017-12) Optical fibres Product specifications. Sectional specification for category A1 multimode fibres
    IEC 60793-1-47 : 4.0 OPTICAL FIBRES - PART 1-47: MEASUREMENT METHODS AND TEST PROCEDURES - MACROBENDING LOSS
    UNE-EN 61300-1:2017 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance
    I.S. EN 61300-1:2016 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - BASIC TEST AND MEASUREMENT PROCEDURES - PART 1: GENERAL AND GUIDANCE
    CEI EN 62614 : 2012 FIBRE OPTICS - LAUNCH CONDITION REQUIREMENTS FOR MEASURING MULTIMODE ATTENUATION
    IEC 61281-1:2017 Fibre optic communication subsystems - Part 1: Generic specification
    14/30296823 DC : 0 BS EN 61300-1 - FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - BASIC TEST AND MEASUREMENT PROCEDURES - PART 1: GENERAL AND GUIDANCE
    S.R. CLC/TS 50621:2016 GUIDELINE FOR THE REPAIR OF DAMAGED INSTALLED OPTICAL FIBRE CABLES AND MICRODUCTS
    BS EN 61281-1 : 1999 FIBRE OPTIC COMMUNICATION SUBSYSTEMS - PART 1: GENERIC SPECIFICATION
    IEC 60793-1-47:2017 RLV Optical fibres - Part 1-47: Measurement methods and test procedures - Macrobending loss
    ISO/IEC 11801:2002 Information technology Generic cabling for customer premises
    ISO/IEC/IEEE 8802-3:2017 Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 3: Standard for Ethernet
    I.S. EN 60793-1-54:2013 OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION (IEC 60793-1-54:2012 (EQV))
    ISO/IEC 14165-116:2005 Information technology Fibre Channel Part 116: 10 Gigabit (10GFC)
    I.S. EN 61746-2:2011 CALIBRATION OF OPTICAL TIME-DOMAIN REFLECTOMETERS (OTDR) - PART 2: OTDR FOR MULTIMODE FIBRES
    IEC 60793-2-10:2017 Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
    IEC TR 62614-2:2015 Fibre optics - Multimode launch conditions - Part 2: Determination of launch condition requirements for measuring multimode attenuation
    EN 61746-2:2011/AC:2014 CALIBRATION OF OPTICAL TIME-DOMAIN REFLECTOMETERS (OTDR) - PART 2: OTDR FOR MULTIMODE FIBRES
    17/30345069 DC : 0 BS EN 60793-2-10 - OPTICAL FIBRES - PART 2-10: PRODUCT SPECIFICATIONS - SECTIONAL SPECIFICATION FOR CATEGORY A1 MULTIMODE FIBRES
    IEC 62614:2010 FIBRE OPTICS - LAUNCH CONDITION REQUIREMENTS FOR MEASURING MULTIMODE ATTENUATION
    IEC 61746-2:2010 Calibration of optical time-domain reflectometers (OTDR) - Part 2: OTDR for multimode fibres
    IEC 62496-2-1:2011 Optical circuit boards - Part 2-1: Measurements - Optical attenuation and isolation
    IEC 61300-1:2016 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance
    CSA ISO/IEC 14165-116 : 2006 INFORMATION TECHNOLOGY - FIBRE CHANNEL - PART 116: 10 GIGABIT FIBRE CHANNEL (10GFC)
    CSA ISO/IEC 14165-116 : 2006 : INC : AMD 1 : 2010 INFORMATION TECHNOLOGY - FIBRE CHANNEL - PART 116: 10 GIGABIT FIBRE CHANNEL (10GFC)
    CSA ISO/IEC 14165-116 : 2006 : INC : AMD 1 : 2010 : R2016 INFORMATION TECHNOLOGY - FIBRE CHANNEL - PART 116: 10 GIGABIT FIBRE CHANNEL (10GFC)
    IEC 60793-1-47:2017 Optical fibres - Part 1-47: Measurement methods and test procedures - Macrobending loss
    IEC 60793-1-54:2018 OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION
    CLC/TS 50621 : 2016 GUIDELINE FOR THE REPAIR OF DAMAGED INSTALLED OPTICAL FIBRE CABLES AND MICRODUCTS
    EN 61300-1:2016 (edition 4) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance
    EN 62496-2-1 : 2011 OPTICAL CIRCUIT BOARDS - PART 2-1: MEASUREMENTS - OPTICAL ATTENUATION AND ISOLATION (IEC 62496-2-1:2011)
    EN 60793-1-54:2013 OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION (IEC 60793-1-54:2012)
    EN 62614 : 2010 FIBRE OPTICS - LAUNCH CONDITION REQUIREMENTS FOR MEASURING MULTIMODE ATTENUATION

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60825-2:2004+AMD1:2006+AMD2:2010 CSV Safety of laser products - Part 2: Safety of optical fibre communication systems (OFCS)
    IEC 61280-1-3:2010 Fibre optic communication subsystem test procedures - Part 1-3: General communication subsystems - Central wavelength and spectral width measurement
    IEC 60793-2-10:2017 Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
    IEC 60793-2:2015 Optical fibres - Part 2: Product specifications - General
    ISO/IEC 24702:2006 Information technology Generic cabling Industrial premises
    ISO/IEC 11801:2002 Information technology Generic cabling for customer premises
    IEC TR 61930:1998 FIBRE OPTIC GRAPHICAL SYMBOLOGY
    IEC 60793-1-40:2001 Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation
    IEC TR 61931:1998 Fibre optic - Terminology
    IEC 61300-3-6:2008 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-6: Examinations and measurements - Return loss
    IEC 61300-3-35:2015 RLV FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - BASIC TEST AND MEASUREMENT PROCEDURES - PART 3-35: EXAMINATIONS AND MEASUREMENTS - VISUAL INSPECTION OF FIBRE OPTIC CONNECTORS AND FIBRE-STUB TRANSCEIVERS
    IEC 60793-2-50:2015 Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres
    IEC 61746:2005 Calibration of optical time-domain reflectometers (OTDR)
    IEC 61315:2005 Calibration of fibre-optic power meters
    IEC TR 62316:2007 GUIDANCE FOR THE INTERPRETATION OF OTDR BACKSCATTERING TRACES FOR SINGLE-MODE FIBRES
    ISO/IEC 14763-3:2014 Information technology Implementation and operation of customer premises cabling Part 3: Testing of optical fibre cabling
    ISO/IEC 24764:2010 Information technology Generic cabling systems for data centres
    IEC 61280-1-4:2009 Fibre optic communication subsystem test procedures - Part 1-4: General communication subsystems - Light source encircled flux measurement method
    IEC 61745:2017 End-face image analysis procedure for the calibration of optical fibre geometry test sets
    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective