1、 TIA-568-C.3-1 December 2011Optical Fiber Cabling Components Standard Addendum 1, Addition of OM4 Cabled Optical Fiber and Array Connectivity ANSI/TIA-568-C.3-1-2011 APPROVED: OCTOBER 13, 2011 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through elimina
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22、NT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-568-C.3-1 i Optical Fiber Cabling Components Standard Addendum 1, Addition of OM4 Cabled Optical Fiber and Array Connectivity Table of Contents FOREWORD i 1 SCOPE 1 2 Normative r
23、eferences 1 Table 1 Cable transmission performance 1 6.4.3 Array 2 FOREWORD (This foreword is not considered part of this Standard.) TIA standards documents are developed within the Technical Committees of the TIA and the standards coordinating committees of the TIA standards board. Members of the c
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25、IA that have an expressed interest. The viewpoint expressed at the time that this standard was approved was from the contributors experience and the state of the art at that time. Users are encouraged to verify that they have the latest revision of the standard. This addendum has been prepared by th
26、e TR-42.11 Subcommittee and approved by the TR-42 Engineering Committee. There are no annexes in this addendum. Introduction Deleted text is shown as strikethrough. New text is shown as underlined. Clause, figure and table numbering will require updating after subclause 6.4.3.2.6. ANSI/TIA-568-C.3-1
27、 1 1 SCOPE This addendum updates ANSI/TIA-568-C.3 with the addition of 50/125 m laser-optimized OM4 cabled optical fiber and components for array connectivity. 2 NORMATIVE REFERENCES The following reference shall be added to clause 2, “Normative references” within the cable standards section. TIA-49
28、2AAAD-2009, Detail Specification for 850-nm Laser-Optimized, 50 m Core Diameter/125 m Cladding Diameter Class 1a Graded-Index Multimode Optical Fibers Suitable for Manufacturing OM4 Cabled Optical Fiber The following references shall be shall be modified to clause 2, “Normative references” within th
29、e cable standards section. TIA-492AAAA-AB-20022009, Detail Specification for 62.5 m Core Diameter/125 m Cladding Diameter Class Ia Graded-Index Multimode Optical Fibers TIA-492AAAB-A-20022009, Detail Specification for 50 m Core Diameter/125 m Cladding Diameter Class Ia Multimode, Graded-Index Optica
30、l Waveguide Fibers TIA-492AAAC-AB-20032009, Detail Specification for 850-nm Laser-Optimized, 50-m Core Diameter/125-m Cladding Diameter Class 1a Graded-Index Multimode Optical Fibers TABLE 1 CABLE TRANSMISSION PERFORMANCE Modify the title of table 1 as follows, “Optical fiber cable1transmission perf
31、ormance parameters”. The first row of table 1 shall be modified as follows: Optical fiber and cable type 2Wavelength (nm) Maximum attenuation (dB/km) Minimum overfilled modal bandwidth-length product (MHzkm)12Minimum effective modal bandwidth-lengthproduct (MHzkm)12 The following row shall be added
32、to table 1 after the row specifying OM3. 850 nm Laser-Optimized 50/125 m Multimode TIA 492AAAD (OM4) 850 1300 3.5 1.5 3500 500 4700 Not Required The second note of the “NOTES” of table 1, shall be changed to Note 1 and modified as follows: 2 1 - The fiber designations (OM1, OM2, OM3, OM4, OS1 and OS
33、2) corresponds to the designations of used within ISO/IEC 11801 or ISO/IEC 24702. Existing Note 1 of table 1 becomes Note 2. ANSI/TIA-568-C.3-1 2 6.4.3 Array Subclause 6.4.3, “Array” shall be modified as follows: 6.4.3 Array 6.4.3.1 General Array system connectivity methods require a specific combin
34、ation of components (array patch cord, optical fiber transitions, duplex patch cord) to maintain polarity. Some of the components are common to other connectivity methods such as duplex systems. NOTES 1 - The array patch cords and array cables of shown in figures 7, 8 and 9through figure 12 are show
35、n unpinned on both ends for simplicity. In some instances, such as when supporting parallel signals, it may be necessary to use a combination of unpinned and pinned connectors on array cables and array patch cords. At any connection using MPO connectors, it is necessary for one plug to be pinned and
36、 the other to be unpinned. 2 - See ANSI/TIA 568 C.0 for guidance on usage of polarity methods. 6.4.3.2 Array patch cords and array cables The Array patch cords and array cables should be clearly identified. 6.4.3.2.1 Type-A:1-1 array patch cord and array cable Type-A:1-1 array patch cords and array
37、cables are used to provide connectivity between array interfaces in which the fibers are arranged in a single row. As shown in figure 7, a Type-A:1-1 array patch cord or array cable has a sequential number assigned to each fiber as follows: a) On one end of the array patch cord or array cable, the f
38、ibers are fixed within the array connector in consecutive number (1,2,3,412) from left to right as viewed looking at the end-face of the array connector with the connector key up (see table 2). b) On the other end of the array patch cord or array cable, the fibers are fixed within the array connecto
39、r also in consecutive number (1,2,3,412) from left to right as viewed looking at the end-face of the array connector with the connector key up (see table 2). Table 2 - Type-A:1-1 array patch cord and array cable fiber sequence Near / Far End Fiber Sequence sequence (viewing the array connector plug
40、end-face of the connector with key up) Near 1 2 3 4 5 6 7 8 9 10 11 12 Far 1 2 3 4 5 6 7 8 9 10 11 12 ANSI/TIA-568-C.3-1 3 Figure 7 - Type-A:1-1 array patch cord and array cable (key-up to key-down) 6.4.3.2.2 Type-A:2-1 array patch cord Type-A:2-1 array patch cords are used to provide connectivity b
41、etween an array interface in which the fibers are arranged in two rows within one array connector plug and two array interfaces in which the fibers are arranged in one row in each of two array connector plugs. As shown in figure 8, a Type-A:2-1 array patch cord has a sequential number assigned to ea
42、ch fiber as follows: a) On one end of the array patch cord, the fibers are fixed within in each of two rows of the array connector plug in consecutive number (1,2,3,412) from left to right as viewed looking at the end-face of the array connector plug with the key up (see table 3). b) On the other en
43、ds of the array patch cord, the fibers are fixed within each array connector plug also in consecutive number (1,2,3,412) from left to right as viewed looking at the end-face of the array connector plug with the key up (see table 3). Table 3 - Type-A:2-1 array patch cord fiber sequence End Fiber sequ
44、ence (viewing the array connector plug end-face with key up) 2-row plug, top row 1 2 3 4 5 6 7 8 9 10 11 12 2-row plug, bottom row 1 2 3 4 5 6 7 8 9 10 11 12 1-row plugs 1 2 3 4 5 6 7 8 9 10 11 12 ANSI/TIA-568-C.3-1 4 Position 12Top Row: Position 1Bottom Row: Position 13Position 1Position 1Position
45、12Top Row: Position 12Bottom Row: Position 24Fibers, Top Row123456789101112Fibers, Bottom Row123456789101112Fibers, Both Plugs123456789101112Key upKey downFigure 8 - Type-A:2-1 array patch cord (key-up to key-down) 6.4.3.2.3 Type-B:1-1 array patch cord and array cable TypeB:1-1 array patch cords and
46、 array cables are used to provide connectivity between array interfaces in which the fibers are arranged in a single row. As shown in figure 89, a Type-B:1-1 array patch cord or array cable has a sequential number assigned to each fiber as follows: a) On one end of the array patch cord or array cabl
47、e, the fibers are fixed within the array connector plug in consecutive number (1,2,3,412) from left to right as viewed looking at the end-face of the array connector with the connector key up (see table 34). b) On the other end of the array patch cord or array cable, the fibers are fixed within the
48、array connector plug in reverse consecutive number (12,11,10,91) from left to right as viewed looking at the end-face of the array connector with the connector key up (see table 34). Table 3 4 - Type-B:1-1 array patch cord and array cable fiber sequence Near / Far End Fiber Sequence sequence (viewin
49、g the array connector plug end-face of the connector with key up) Near 1 2 3 4 5 6 7 8 9 10 11 12 Far 12 11 10 9 8 7 6 5 4 3 2 1 Figure 8 9 - Type-B:1-1 array patch cord and array cable (key-up to key-up) ANSI/TIA-568-C.3-1 5 6.4.3.2.4 Type-B:2-1 array patch cord Type-B:2-1 array patch cords are used to provide connectivity between an array interface in which the fibers are arranged in two rows within one array connector plug and two array interfaces in which the fibers are arranged in one row in each of two array connector plugs. As shown in figure 10, a
