1、 IEC 61753-031-2 Edition 1.0 2014-09 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Performance standard Part 031-2:Non-connectorized single-mode 1 N and 2 N non-wavelength-selective branching devices for Category C Controlled environment IEC 61753-031-2:2014-09(en
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12、led when printed.IEC 61753-031-2 Edition 1.0 2014-09 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Performance standard Part 031-2:Non-connectorized single-mode 1 N and 2 N non-wavelength-selective branching devices for Category C Controlled environment INTERNATIO
13、NAL ELECTROTECHNICAL COMMISSION R ICS 33.180.20 PRICE CODE ISBN 978-2-8322-1818-1 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.Copyrighted material licensed to BR Demo by Thomson Reuters(Scie
14、ntific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 IEC 61753-031-2:2014 IEC 2014 CONTENTS FOREWORD.3 1 Scope.5 2 Normative references.5 3 Test.6 4 Test report.7 5 Performance requirements.7 5.1 Dimensions.7 5.2 Sam
15、ple size.7 5.3 Test details and requirements.7 Annex A(normative)A and U requirements of 1 N and 2 N NWBDs.14 A.1 Attenuation and uniformity requirements of 1 N and 2 N NWBDs calculated by the equations of Tests No.1 and 2.14 A.2 Minimum requirements at room temperature of attenuation values for bal
16、anced bidirectional 1 N and 2 N NWBD.15 Annex B(normative)Sample size.17 Bibliography.18 Table 1 Test details and requirements(1 of 6).8 Table A.1 Attenuation and uniformity requirements of balanced bidirectional NWBD having the most common port configurations for Class A,with the underlying formulas as specified in the Tests 1 and 2 of Table 1.14 Table A.2 Attenuation and uniformity requirements of balanced bidirectional NWBD having the most common port configurations for Class B,with the un