1、 TIA-568.0-D-1 (Addendum to TIA-568.0-D) July 2017Generic Telecommunications Cabling for Customer Premises Addendum 1: Updated References, Accommodation of New Media Types ANSI/TIA-568.0-D-1-2017 APPROVED: JULY 26, 2017 NOTICE TIA Engineering Standards and Publications are designed to serve the publ
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23、 OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-568.0-D-1 i Generic Telecommunications Cabling for Customer Premises Addendum 1: Updated References, Accommodation of New Media Types Table of Contents FOREWORD . ii 1 SCOPE 1 2 MODIFICATIONS
24、 TO ANSI/TIA-568.0-D 1 2.1 General . 1 2.2 Normative references (clause 2) . 1 2.3 Recognized cabling (subclause 5.8) 1 2.4 Optical fiber cabling maximum cord lengths when a MUTOA is deployed (subclause 5.9.1.4.2) 2 2.5 Consolidation point (subclause 5.9.2) . 2 2.6 Maximum pair un-twist for balanced
25、 twisted-pair cabling (subclause 6.2.3.1) 2 2.7 Optical fiber cords (subclause 6.3.2) . 2 2.8 Optical fiber polarity (subclause 6.3.3) 3 2.9 Optical fiber cabling transmission performance and test requirements (subclause 7.4) . 3 2.10 Balanced twisted-pair cabling supportable distances (subclause C.
26、2) 3 2.11 Optical fiber cabling supportable distances (subclause C.3) . 5 2.12 Bibliography (Annex F) 14 List of Tables Table 2 Maximum pair un-twist for category cable termination 2 Table 5 Maximum supportable distances for balanced twisted-pair cabling applications . 4 Table 6 Maximum supportable
27、distances and channel attenuation for multimode optical fiber applications . 6 Table 7 Maximum supportable distances and channel attenuation for single-mode optical fiber applications . 9 Table 8 Maximum supportable distances and minimum and maximum channel attenuation for single-mode fiber passive
28、optical network (PON) applications 12 ANSI/TIA-568.0-D-1 ii FOREWORD (This foreword is not considered part of this Addendum.) This Addendum was developed by TIA Subcommittee TR-42.1. Approval of this Addendum This Addendum was approved by TIA Subcommittee TR-42.1, TIA Engineering Committee TR-42, an
29、d the American National Standards Institute (ANSI). ANSI/TIA reviews standards every 5 years. At that time, standards are reaffirmed, withdrawn, or revised according to the submitted updates. Updates to be included in the next revision should be sent to the committee chair or to ANSI/TIA. Annexes Th
30、ere are no annexes to this Addendum. Introduction Since the time of publication of ANSI/TIA-568.0-D two documents have been published by TIA TR-42 subcommittees which affect its content. In response, this Addendum revises references and accommodates new media types. Specifically: ANSI/TIA-568-C.2-1
31、specified a new balanced twisted-pair media type, category 8, specified to 2 GHz. Category 8 cabling supports 30-meter, 2 connection channels. ANSI/TIA-568.3-D is published. Cabling transmission performance and test requirements for optical fiber cabling, guidelines for maintaining optical fiber pol
32、arity, and guidelines for field testing of optical fiber cabling are now contained in this revision, eliminating the need to reference ANSI/TIA-568-C.0 for this information. In addition, a new media type, OM5, is specified. OM1, OM2 and OS1 cabling is no longer supported. ANSI/TIA-568.0-D-1 1 1 SCOP
33、E This Addendum updates references and accommodates new media types introduced by ANSI/TIA-568-C.2-1 and ANSI/TIA-568.3-D. 2 MODIFICATIONS TO ANSI/TIA-568.0-D 2.1 General Deleted text is shown as strikethrough. New text is shown as underline. 2.2 Normative references (clause 2) The references within
34、 clause 2, “Normative references,” shall be modified as follows: ANSI/TIA-568-C.0 2009, Generic Telecommunications Cabling for Customer Premises NOTE Cabling transmission performance and test requirements for optical fiber cabling, guidelines for maintaining optical fiber polarity, and guidelines fo
35、r field testing of optical fiber cabling are currently contained in ANSI/TIA-568-C.0. When ANSI/TIA-568.3-D is published these requirements and guidelines will be specified in that document. ANSI/TIA-568-C.2 2009, Balanced Twisted-Pair Telecommunications Cabling and Components Standard NOTE The abov
36、e reference includes the addendum, ANSI/TIA-568-C.2-1 2016. ANSI/TIA-568-C.3 2008, Optical Fiber Cabling Components Standard ANSI/TIA-568.3-D 2016, Optical Fiber Cabling and Components Standard 2.3 Recognized cabling (subclause 5.8) The text of item a) and item b) of 5.8, “Recognized cabling,” shall
37、 be modified as follows: a) 100-ohm balanced twisted-pair cabling (ANSI/TIA-568-C.2), category 5e or higher; NOTES: 1 To support a wide range of applications, Category 6A cabling may be required. See Annex C. 2 At the time of publication category 8 cabling was under development. 2 Category 8 cabling
38、 supports channels with a maximum of 2 connections to a maximum length of 30 m (98 ft). 3 Category 8 components can be used to construct category 6A 100 m (328 ft) channels. See TIA TSB-184-A for power delivery efficiency achievable with category 8 components. b) multimode optical fiber cabling (ANS
39、I/TIA-568-C.3) 2-fiber (or higher fiber count), OM3 or higher recommended; b) multimode optical fiber cabling (ANSI/TIA-568.3-D) 2-fiber (or higher fiber count); The last paragraph in 5.8 shall be modified as follows: Recognized cabling components shall meet applicable requirements specified in ANSI
40、/TIA-568-C.2, ANSI/TIA-568-C.3ANSI/TIA-568.3-D, ANSI/TIA-568-C.4, and, if applicable, the specific premises standard. ANSI/TIA-568.0-D-1 2 2.4 Optical fiber cabling maximum cord lengths when a MUTOA is deployed (subclause 5.9.1.4.2) The text of 5.9.1.4.2, “Optical fiber cabling,” shall be modified a
41、s follows: Optical fiber cords used in the context of MUTOAs and open space areas shall meet the requirements of ANSI/TIA 568-C.3ANSI/TIA-568.3-D. The maximum horizontal cabling length is not affected by the deployment of a MUTOA. 2.5 Consolidation point (subclause 5.9.2) The text of the first parag
42、raph of 5.9.2, “Consolidation point,” shall be modified as follows: The CP is an optional interconnection point within Cabling Subsystem 1 using ANSI/TIA-568-C.2 or ANSI/TIA-568-C.3ANSI/TIA-568.3-D compliant connecting hardware. It differs from the MUTOA in that a CP creates an additional connection
43、 for each Cabling Subsystem 1 cable run. Cross-connections shall not be used at a CP. No more than one CP shall be used within the same Cabling Subsystem 1 cable run. A transition point and CP shall not be used in the same Cabling Subsystem 1 cabling link. Each Cabling Subsystem 1 cable extending to
44、 the equipment outlet space from the CP shall be terminated to an equipment outlet or MUTOA. The cables and connections used at a CP shall meet the requirements of ANSI/TIA-568-C.2 or ANSI/TIA-568-C.3ANSI/TIA-568.3-D and be installed in accordance with the requirements of clause 5 (see figure 6). 2.
45、6 Maximum pair un-twist for balanced twisted-pair cabling (subclause 6.2.3.1) Table 2 of 6.2.3.1, “General,” shall be modified as follows: Table 2 Maximum pair un-twist for category cable termination Category Maximum pair un-twist mm (in) 3 75 (3) 5e 13 (0.5) 6 13 (0.5) 6A 13 (0.5) 8 13 (0.5) NOTE I
46、nformation on category 3 cabling retained to support existing installations 2.7 Optical fiber cords (subclause 6.3.2) The text of 6.3.2, “Cords,” shall be modified as follows: Optical fiber cords shall have the same fiber type as the optical fiber cabling and meet the requirements of ANSI/TIA 568-C.
47、3ANSI/TIA-568.3-D. The minimum inside bend radius for optical fiber cord cable shall be 25 mm (1 in) unless a smaller minimum bend radius is specified by the cord manufacturer. ANSI/TIA-568.0-D-1 3 2.8 Optical fiber polarity (subclause 6.3.3) The text of 6.3.3, “Polarity,” shall be modified as follo
48、ws: To support bi-directional communication systems that use separate optical fibers in each direction, the cabling system shall provide means to maintain correct signal polarity so that the transmitter on one end of the channel will connect to the receiver on the other end of the channel. Maintaini
49、ng the correct transmit-to-receive polarity throughout the cabling system is crucial for system operation. ANSI/TIA-568-C.0ANSI/TIA-568.3-D illustrates some methods for maintaining polarity for these systems. 2.9 Optical fiber cabling transmission performance and test requirements (subclause 7.4) The text of 7.4, “Optical fiber cabling transmission performance and test requirements,” shall be modified as follows: Transmission performance and test requirements for optical fiber cabling are specified in ANSI/TIA-568-C.0ANSI/TIA-568.3-D. 2.10 Balance
