1、PUBLISHED DOCUMENTPD CLC/TR 50378-2-2:2008Passive components to be used in optical fibre communication systems Product specifications Part 2-2: SC(SC2)-APC connector-type fixed optical attenuators using IEC 60793-2 Category B1.1 singlemode fibreICS 33.180.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g4
2、3g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58PD CLC/TR 50378-2-2:2008This Published Document was published under the authority of the Standards Policy and Strategy Committee on 30 May 200
3、8 BSI 2008ISBN 978 0 580 62889 4National forewordThis Published Document is the UK implementation of CLC/TR 50378-2-2:2008.The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting devices and passive comp
4、onents.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Amendments/corrigenda issued since publicationDate Comme
5、ntsTECHNICAL REPORT CLC/TR 50378-2-2 RAPPORT TECHNIQUE TECHNISCHER BERICHT April 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Bru
6、ssels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. CLC/TR 50378-2-2:2008 E ICS 33.180.20 English version Passive components to be used in optical fibre communication systems - Product specifications - Part 2-2: SC(SC2)-APC co
7、nnector-type fixed optical attenuators using IEC 60793-2 Category B1.1 singlemode fibre This Technical Report was approved by CENELEC on 2008-01-10. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Fran
8、ce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword This Technical Report was prepared by the Technical Committee CENELEC TC 86
9、BXA, Fibre optic interconnect, passive and connectorised components. The text of the draft was submitted to the vote and was approved by CENELEC as CLC/TR 50378-2-2 on 2008-01-10. _ CLC/TR 50378-2-2:2008 2 Passive components to be used in optical fibre communication systems Product specifications Pa
10、rt 2-2: SC(SC2)-APC connector-type fixed optical attenuators using IEC 60793-2 Category B1.1 singlemode fibre Description Performance Type: fixed Application: EN 61753-1:2007 Category UETSI ES 201 286 Style: plug style Operating wavelength: (1 260 1 360) nm and (1 460 1 625) nm Attenuation: 1 dB, 5
11、dB, and 15 dB Coupling mechanism: push pull Configuration: plug-attenuator-adaptor-plugFibre category: special fibres Return loss grades: V: 60 dB References: EN 50377-4-2 1)Connector sets and interconnect components to be used in optical fibre communication systems Product specifications Part 4-2:
12、Type SC-APC simplex 8 and 9 degree terminated on IEC 60793-2 category B1.1 singlemode fibre EN 60793-2 Optical fibres Part 2: Product specifications General (IEC 60793-2) EN 61300 series Fibre optic interconnecting devices and passive components Basic test and measurement procedures (IEC 61300 serie
13、s) EN 61753-1 Fibre optic interconnecting devices and passive components performance standard Part 1: General and guidance for performance standards (IEC 61753-1:2007) EN 61753-051-3 Fibre optic interconnecting devices and passive components performance standard Part 051-3: Single-mode fibre, plug-s
14、tyle fixed attenuators for category U - Uncontrolled environment (IEC 61753-051-3) ETSI ES 201 286 Transmission and Multiplexing (TM); Passive optical components; Connector-type optical fixed attenuators for single-mode optical fibre communications systems; Common requirements and conformance testin
15、g ETSI EN 300 019 (series) Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment Outline and maximum dimensions: 1)At draft stage. CLC/TR 50378-2-2:2008 3 Contents 1 Scope 5 2 Test samples 5 3 Test program 5 3.1 Spectral attenuation loss (accor
16、ding to EN 61300-3-5) 5 3.2 Attenuation at 1 310 nm and 1 550 nm measured with LED source and power meter 5 3.3 Polarisation dependent loss (PDL) (according to EN 61300-3-2 method 1) 5 4 Test laboratories involved in this RRT 5 5 Measurement results 6 5.1 Individual test laboratory results with refe
17、rence connectors . 6 5.2 Overview of all attenuation test results . 15 5.3 Summary of attenuation measurements results 21 5.4 Overview of PDL results . 24 6 Mechanical interface issues with SC/APC plug style attenuators . 24 7 Conclusions 25 Table 1 PDL measurements from Laboratory A . 7 Table 2 PDL
18、 measurements from Laboratory B . 9 Table 3 PDL measurements from Laboratory C . 10 Table 4 PDL measurements from Laboratory D . 12 Table 5 PDL measurements from Laboratory E . 14 Table 6 Pass/fail result . 21 Table 7 Pass/fail result with relaxed performance critera . 21 Table 8 Pass/fail result .
19、22 Table 9 Pass/fail result with relaxed performance critera . 22 Table 10 LED measurements results at 1 310 nm (green colour = pass) 23 Table 11 LED measurements results at 1 550 nm (green colour = pass) 23 Table 12 SC/APC plug style attenuator behaviour analysis for different working configuration
20、s . 25 Figure 1 Laboratory A results Spectral measurements 6 Figure 2 Laboratory A results LED measurements 7 Figure 3 Laboratory B results Spectral measurements 8 Figure 4 Laboratory B results LED measurements 8 Figure 5 Laboratory C results Spectral measurements 9 Figure 6 Laboratory C results LED
21、 measurements 10 Figure 7 Laboratory D results Spectral measurements 11 Figure 8 Laboratory D results LED measurements 12 Figure 9 Laboratory E results Spectral measurements 13 Figure 10 Laboratory E results LED measurements 14 Figure 11 1 dB attenuators All laboratories results Common reference . 1
22、5 Figure 12 5 dB attenuators All laboratories results Common reference . 17 Figure 13 15 dB attenuators All laboratories results Common reference . 19 Figure 14 Overview of PDL measurements results 24 CLC/TR 50378-2-2:2008 4 1 Scope This document reports the measurement results of a round robin test
23、 program carried out on SC/APC plug style fixed attenuators. The work was initiated at CENELEC CLC/TC 86BXA in November 2004 in order to get a clear understanding on the accuracy and repeatability of the spectral attenuation loss measurements on fixed attenuators. Out of these results some recommend
24、ations are made for attenuation tolerance values that can be used in the performance standards. 2 Test samples In total 18 SC/APC plug style fixed attenuators were collected for this round robin test: 6 attenuators with nominal attenuation of 1 dB (labelled 1, 2, 3, 4, 5, 6); 6 attenuators with nomi
25、nal attenuation of 5 dB (labelled 7, 8, 9, 10, 11, 12); 6 attenuators with nominal attenuation of 15 dB (labelled 13, 14, 15, 16, 17, 18). The attenuators were obtained from various suppliers. The attenuating principle of all devices is based on the use of high attenuating fibre. The performance gra
26、de of these attenuators is defined as operating wavelength range: 1 260 nm - 1 360 nm and 1 460 nm - 1 580 nm, attenuation tolerance: 0,5 dB for attenuators 5 dB, 10 % of nominal attenuation value for attenuators 5 dB. 3 Test program All participating test laboratories measured spectral attenuation
27、and polarisation dependent loss for each attenuator. For the sake of decreasing uncertainty all measurement procedures were specified in necessary details. 3.1 Spectral attenuation loss (according to EN 61300-3-5) The measured values were reported for the discrete wavelengths in the full spectral ra
28、nge from 1 260 nm to 1 650 nm with 5 nm step. The spectral width was set at 2 nm. To minimize uncertainty of measured results, measuring equipment specifications and measurement procedures were clearly stated. Each test laboratory performed the measurements with 2 sets of plugs and adapters: measure
29、ments with common reference plugs and adapter (the same references for all the test laboratories); measurements with own Grade B plugs and own adapter. Estimated measurement uncertainty didnt exceed 0,1 dB for the whole measurement range. 3.2 Attenuation at 1 310 nm and 1 550 nm measured with LED so
30、urce and power meter The measurements were performed with common reference plugs at two wavelengths 1 310 nm and 1 550 nm. 3.3 Polarisation dependent loss (PDL) (according to EN 61300-3-2 method 1) PDL was measured at 1 310 nm and 1 550 nm, with common reference plugs. Selected measurements method w
31、as “all states method”. The accuracy of each PDL measurement was better than 0,1 dB. 4 Test laboratories involved in this RRT The following laboratories were involved in this round robin test (in alphabetical order): Adamant Kogyo Co., Ltd. (Japan); Diamond (Switzerland); CLC/TR 50378-2-2:2008 5 Hub
32、er and Suhner (Switzerland); Telekomunikacja Polska (Poland); Tyco Electronics (the Netherlands). 5 Measurement results 5.1 Individual test laboratory results with reference connectors 5.1.1 Laboratory A results Figure 1 shows the spectral insertion loss measurements results. Figure 2 shows LED inse
33、rtion loss measurements results. Table 1 lists PDL measurements at 1 310 nm and 1 550 nm. Figure 1 Laboratory A results Spectral measurements 1 dB attenuators Lab. A, common reference plugs0,51 1,52 1250 1350 1450 1550 1650Wavelength nm Attenuation dB1234561 dB attenuators Lab A, Lab grade B plugs0,
34、511,521250 1350 1450 1550 1650Wavelength nm Attenuation dB1234565 dB attenuators Lab A, common reference plugs4 4,55 5,56 1250 1350 1450 1550 1650Wavelength nm Attenuation dB7891011125 dB attenuators Lab A, Lab grade B plugs44,555,561250 1350 1450 1550 1650Wavelength nmAttenuation dB78910111215 dB a
35、ttenuators Lab. A, common reference plugs13141516171250 1350 1450 1550 1650Wavelength nm Attenuation dB13141516171815 dB attenuators Lab A, Lab grade B plugs13141516171250 1350 1450 1550 1650Wavelength nmAttenuation dB131415161718CLC/TR 50378-2-2:2008 6 Figure 2 Laboratory A results LED measurements
36、 Table 1 PDL measurements from Laboratory A Lab A PDL measurements, common reference plugs 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 310 nm 0,02 0,02 0,12 0,18 0,04 0,16 0,02 0,01 0,11 0,01 0,01 0,25 0,26 0,27 0,26 0,03 0,02 0,04 1 550 nm 0,02 0,03 0,01 0,03 0,04 0,02 0,02 0,02 0,04 0,03 0,03 0
37、,02 0,06 0,03 0,06 0,10 0,05 0,04 5.1.2 Laboratory B results Figure 3 shows the spectral insertion loss measurements results. Figure 4 shows LED insertion loss measurements results. Table 2 lists PDL measurements at 1 310 nm and 1 550 nm. 1 dB attenuators Lab A, common reference plugs0,5 1,0 1,5 2,0
38、 01 2 3456Sample numberAttenuation dB131015505 dB attenuators Lab A, common reference plugs4,04,55,05,56,06 7 8 9 10 11 12Sample number Attenuation dB1310155015 dB attenuators Lab A, common reference plugs13 14 15 16 17 12 13 14 15 16 17 18Sample number Attenuation dB131015501 dB attenuators Lab B,
39、common reference plugs0,51 1,52 1250 1350 1450 1550 1650Wavelength nm Attenuation dB1234561 dB attenuators Lab B, Lab grade B plugs0,511,521250 1350 1450 1550 1650Wavelength nmAttenuation dB123456CLC/TR 50378-2-2:2008 7 Figure 3 Laboratory B results Spectral measurements Figure 4 Laboratory B result
40、s LED measurements 5 dB attenuators Lab B, common reference plugs4 4,55 5,56 1250 1350 1450 1550 1650Wavelength nm Attenuation dB7891011125 dB attenuators Lab B, Lab grade B plugs44,555,561250 1350 1450 1550 1650Wavelength nmAttenuation dB78910111215 dB attenuators Lab B, common reference plugs13141
41、516171250 1350 1450 1550 1650Wavelength nm Attenuation dB13141516171815 dB attenuators Lab B, Lab grade B plugs13141516171250 1350 1450 1550 1650Wavelength nm Attenuation dB1314151617181 dB attenuators, Lab B, common reference plugs0,5 1,0 1,5 2,0 01 2345 6Sample number Attenuation dB1310nm1550nm5 d
42、B attenuators, Lab B, common reference plugs4,04,55,05,56,06 7 8 9101 12Sample number Attenuation dB1310nm1550nm15 dB attenuators, Lab B, common reference plugs13 14 15 16 17 12 13 14 15 16 17 18Sample number Attenuation dB1310nm1550nmCLC/TR 50378-2-2:2008 8 Table 2 PDL measurements from Laboratory
43、B Lab B PDL measurements, common reference plugs 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 310 nm - - - - - - - - - - - - - - - - - - 1 550 nm 0,04 0,02 0,02 0,01 0,02 0,02 0,04 0,01 0,03 0,01 0,01 0,02 0,09 0,04 0,08 0,09 0,04 0,03 5.1.3 Laboratory C results Figure 5 shows the spectral inserti
44、on loss measurements results. Figure 6 shows LED insertion loss measurements results. Table 3 lists PDL measurements at 1 310 nm and 1 550 nm. Figure 5 Laboratory C results Spectral measurements 1 dB attenuators Lab C, common reference plugs0,51 1,52 1250 1350 1450 1550 1650Wavelength nm Attenuation
45、 dB1234561 dB attenuators Lab C, Lab grade B plugs0,511,521250 1350 1450 1550 1650Wavelength nmAttenuation dB1234565 dB attenuators Lab C, common reference plugs4 4,55 5,56 1250 1350 1450 1550 1650Wavelength nm Attenuation dB7891011125 dB attenuators Lab C, Lab grade B plugs44,555,561250 1350 1450 1
46、550 1650Wavelength nmAttenuation dB78910111215 dB attenuators Lab C, common reference plugs13141516171250 1350 1450 1550 1650Wavelength nm Attenuation dB13141516171815 dB attenuators Lab C, Lab grade B plugs13141516171250 1350 1450 1550 1650Wavelength nm Attenuation dB131415161718CLC/TR 50378-2-2:20
47、08 9 Figure 6 Laboratory C results LED measurements Table 3 PDL measurements from Laboratory C Lab C PDL measurements, common reference plugs 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 310 nm 0,02 0,02 0,08 0,07 0,04 0,13 0,03 0,02 0,23 0,01 0,03 0,23 0,26 0,29 0,11 0,10 0,05 0,31 1 550 nm 0,01
48、0,01 0,02 0,01 0,01 0,01 0,02 0,02 0,03 0,02 0,03 0,01 0,10 0,07 0,02 0,03 0,02 0,02 1 dB attenuators Lab C, common reference plugs0,5 1,0 1,5 2,0 01 2345 6Sample number Attenuation dB1310nm1550nm5 dB attenuators Lab C, common reference plugs4,04,55,05,56,06 7 8 9101 12Sample number Attenuation dB1310nm1550nm15 dB attenuators Lab C, common reference plugs13 14 15 16 17 12 13 14 15 16 17 18Sample number Attenuation dB1310nm1550nmCLC/TR 5
