1、 IEC 61280-2-1Edition 2.0 2010-03INTERNATIONAL STANDARD Fibre optic communication subsystem test procedures Part 2-1:Digital systems Receiver sensitivity and overload measurement IEC 61280-2-1:2010(E)LICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK S
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9、1 Fax:+41 22 919 03 00 LICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 61280-2-1Edition 2.0 2010-03INTERNATIONAL STANDARD Fibre optic communication subsystem test procedures Part 2-1:Digital systems Receiver sensitivity and overloa
10、d measurement INTERNATIONAL ELECTROTECHNICAL COMMISSION NICS 33.180.01 PRICE CODEISBN 2-8318-1084-2 Registered trademark of the International Electrotechnical Commission LICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61280-2-1 IEC:2
11、010(E)CONTENTS FOREWORD.3 1 Scope and object.5 2 Terms and definitions.5 3 Apparatus.6 3.1 General.6 3.2 BER test set.6 3.2.1 Data generator.7 3.2.2 Error counter.7 3.3 Optical power meter.7 3.4 Variable optical attenuator.7 3.5 Optical splitter.7 3.6 Test cords.7 3.7 Optical transmit interface.7 4
12、Equipment under test(EUT).8 5 Test procedure.8 5.1 Operating conditions and test environment.8 5.2 Connector end-face cleaning.8 5.3 Measurement of input sensitivity.8 5.3.1 Optical input power calibration.10 5.3.2 BER or EBR determination.10 5.4 Measurement of overload level.11 5.4.1 Power level ca
13、libration.11 5.4.2 Overload level determination.12 5.4.3 Calculation of overload level.12 6 Measurement uncertainties.13 7 Test results.13 7.1 Required information.13 7.2 Available information.13 Bibliography.14 Figure 1 Optical fibre system.5 Figure 2 Setup for the measurement of input sensitivity
14、of a receive terminal.9 Figure 3 Setup for the measurement of input sensitivity of an amplifier or regenerator.9 Figure 4 Setup for the measurement of overload level for a receive terminal.11 Figure 5 Setup for the measurement of overload level for an amplifier or regenerator.12 Table 1 Minimum moni
15、toring time.10 LICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.61280-2-1 IEC:2010(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC COMMUNICATION SUBSYSTEM TEST PROCEDURES Part 2-1:Digital systems Receiver sensitivity and ove
16、rload measurement 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 Speci
