1、CENELEC EN*L8b220 93 3404583 0174821 582 m BRITISH STANDARD Harmonized system of quality assessment for electronic components Sectional specification: Connector sets for optical fibres and cables - mpe LSC * m * The European Standard EN 186220 : 1993 has the status of a British Standard ICs 33.180.2
2、0 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 186220 : 1996 _ CENELEC EN*Lb220 93 W 3404583 0174822 419 Amd. No. The following BSI references relate b the work on this Stan- commiaee reference EPL“2 D together with the voting report, circulated as document CECC(Sec)3
3、012 it was approved by CECC as EN 186220 on 13 Februaty 1992. The foliowing dates were fixed: - latestdateof announcement of the EN at latest date of publication of an identical national standard (dop) 19934615 latest date of declaration of national standards obsolescence 1993-06-15 latest date of w
4、ithdrawal of conflicting national standards (dow) 2002-12-15 national level (doa) 1992-12-15 - - - Contents CECC Specification System Section one - General 1 General 1.1 Scope 1.2 Related Documents 1.3 Definitions 1.4 Safety 1.6 Marking Section two - Requirements 2 Requirements 2.1 Classification 2.
5、2 Reference Components 2.3 Gauges 2.4 Mounting Requirements 2.6 QualityGrade Section three - Quality assessment procedures 3 Quality Assessment Procedures 3.1 Qualification Approval 3.2 Quaity Conformance Inspection 3.3 Delayed Deliveries Annexes 1 (informative) Determination of singie limit maling
6、face dimensions (min. or max) for materials with a coefficient of expansion #6.10- K- 2 (informative) Tolerance fields for ferrule and sleeve for clearance gradeOto5 7 7 11 11 11 11 12 12 13 13 14 16 O BSI 1996 CENELEC EN*186220 93 3404583 0374827 TTO EN 186 O01 BLANK DETAIL SPECIFICATION ENVIRONMEN
7、TAL CATEGORY I * Pro-forma for preparation of detail specifications GENERIC SPECIFICATION * General * Requirements * Quality assessment procedures * Measurement and environmental rest procedures CECC 86 221-001 DETAIL SPECIFICATION (Connector style “.) Page 3 EN 186220 : 1993 3. CECC 86 Zu) SECTIONA
8、L SPECIFICATION .1 CECC 86 220 SECTIONAL SPECIFICATION (Connector Set Type LSC) CECC 86 WO SECIIONAL SPECIFICATION * General * Requirements * Quality assessment procedures b- I 1 CECC 86 221-002 DETAIL SPECIFICATION i EN 186 005 BLANK DETAIL SPECIFICATION ENVIRONMENTAL CATEGORY V * Description of st
9、yle * Details of variants, appropriate * Outline rawing(s) Assessment level) * Quality assessment procedures * Test requirements cables, etc. .i CECC 86 221403 DETAIL SPECIFICATION CENELEC EN*386220 93 3q04583 0374828 737 Page 4 EN 186220 : 1993 SECTION ONE - GENERAL 1. 1.1 1.2 13 General scope This
10、 SS covers type LSC fibre optic connector sets. Type LSC defines single way connectors with a bayonet coupliug mechanism and a cylindrical butting ferrule of 2,5 mm nominal diameter. This specification contains the requirements for type LSC connector sets. Detail specifications Ss) shall be prepared
11、 using the following pro forma general blank detail specifications (BDS) associated with the GS: - EN 186 i, environmental category i, When completed, the DSs applicable to this SS shd be renumbered in accordance with CECC M) 700 (Sedion IV) Issue 1, clause 4.2, as follows: CECC 86 m-xxx Type LSC En
12、vironmental Category I Related Documents The following standards contain provisions which, through reference in this text, constitute proVisions of this standard. At the time of publication, the editions indicated were valid Au standards are subject to revision, and parties to agreements based on th
13、is standard are enmuraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of CECC, IEC and IS0 maintain registers of currently vatid international standards. References made to a specific clause or subclause of a standard includes all subcla
14、uses to the reference unless otherwise specified. ENl86OOO-1: IEC825: IS0 8015 : IS0 128: Generic specification (GS) for connector sets for optical fibres and cables. Radiation safety of laser products, equipment classification, require- ments and users guide. Technical drawings; fundamental toleran
15、cing principle. Technical drawings - General principles of presentation. Detnitions For cornparsion of connectors with different accuracy grades with different mechanical and opticai quality grades within the same DS the connectors are specified with a quality grade. This value gives a combination o
16、f the following three subgrades: * clearance grade * eccentricity grade * attenuation grade. CENELEC EN*Lb220 93 M 3404583 0374829 873 Clearance grade Attenuation grade Quaiiy grade Eccentricity grade 13.1 13.2 133 13.4 1.4 1.4.1 1.4.2 1.4.3 1.4.4 Example A Example B O 1 2 1 2 1 Page 5 EN 186220 : 1
17、993 Clearance Grade This describes the tolerance field of the leading diameter of ferrule and sleeve. The clearance grade is given by a number, running from O (tightest tolerance) to 5 (see Annex 2). The allocation of clearance grade and tolerance field is described in the relevant DS. Eccentricity
18、Grade This describes the tolerance field that combines the tolerance of the borehole and its Concentricity to the axis of the plug. This information is only applicable for field mountable connedors. The ecCentnuty grade is given by a number, running from O (iowest tolerance) to 5. The allocation of
19、grade and tolerance field is described in the relevant DS. Attenuation Grade This describes an area of a given attenuation. It is oniy considerable for pigtailed connector sets. The attenuation grade is given by a number, running fiom O (lowest tolerance) to 5. The allocation of the grade and tolera
20、nce field is described in the relevant DS. Quaiity Grade This gives the combination of clearance grade, eccentricity grade and attenuation grade. The quality grade is given by the highest number of the three mentioned subgrades. Example: Pigtailed connector set Example C 3 1 3 Safety Optical fibre c
21、onnectors, when used as part of an optical fibre system, may emit/produce potentially hazardous radiation. The manufacturers of connectors are not obliged to mark them as such, but sufficient infomation should be made avaible in the manufacturers literature to enable the system designer to assess th
22、e degree of hazard. This information shall be given prominence in the DS. The assembly instructions, included in the connector package, shall give a prominent warning to the assembler, of the necessary work practices. The responsibilty for the safe application of the connector lies with the system d
23、esign engineer, who should refer to IEC 825. As there is no safety guide for light emitting diodes (LEDs), iEC 825 shail apply to systems using these also. DSs should give the following information in a prominent position : CENELEC EN1l186220 93 3404583 0374830 595 Page 6 EN 186220 : 1993 WARNING “C
24、are shoul. be taken when handling small diameter optical fibre, to prevent it puncturing the skin, especially in the eye area. Direct viewing of the end of an optical fibre or terminated optical fibre, while it is propagating eneqgy, is not recommended unless prior assurance has been obtained as to
25、the safe energy of the output level“. 15 Marking See 2.6 of EN 186 OOO-1. CENELEC EN*LBb220 93 m 3404583 0174831 421 m Page 7 EN 186220 : 1993 SECTION TWO - REQUIREMENTS 2. Requirements The requirements specified in Section two and Section three of EN 186 OOO-1 apply. The requirements for connector
26、set components covered by this specification are as specined herein and in the relevant DS. 2.1 Classification The connector sets covered by this specication are ciassied as : - typeLsc - bayonet coupling mechanism - configurations: - - plug/socket. plug / adaptor / plug Arrangements: - kit - patchc
27、ord. - pigtail Environmental categories : - categoryI. Assessment leveis : - levelA - 1evelB - levelc. The single limit (maximum or minimum) mating face dimensions for connector set congurations are given in Fies 1,2 and 3, which use first angle projection according to IS0 128. The applicable config
28、uration, arrangement, style, variants, climatic category and assessment levels shail be specified in the DS. CENELEC EN*LBb220 93 3404583 0L7Y832 368 Page 8 EN 186220 : 1993 coupling ring Ref. 0A 0c 0D OE OG J K M N O P Q S Dimensions Illtll mia max. s I, II coupling ring locfcsd Fmi n. = 6N F, = 10
29、 N Notes Notes: 1) The value is valid at room temperature (;io “C) and for fede materiais with a coefficient of 2) For fede materials with a coefficient of expansion u .f; 610 K. the maximum limit of A (A-) -61 expansion a = 6-10 IC . shd be determined from the diagram given in Annex 1. Figure 1 - P
30、lug mating face slngle limit dimensions CENELEC EN*3b220 93 H 3404583 0374833 2T4 Ref. OB 0c OE G H I J OK L M N Page 9 EN 186220 : 1993 Dimensions nml min. niax ;7s 54 397 039 7?8 56 56 13 32 3?4 24?4 - - 6 - Notes: 1) Valid at room temperam (20 OC) and for rigid sleeves made of material with a coe
31、fficient of 2) For sleeve material with a coefficient of expansion $; 610 K- the minimum limit of A (Ada) 3) For resilient sleeve the value of A (A Fax 0181 996 7001. In response to orders for intrnational standards, it is BSI policy to supply the BSI implementation of those that have been published
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