1、 TIA-862-B-1 (Addendum to TIA-862-B) November 2017Structured Cabling Infrastructure Standard for Intelligent Building Systems Addendum 1: Updated References, Accommodation of New Media Types ANSI/TIA-862-B-1-2017 APPROVED: OCTOBER 27, 2017 NOTICE TIA Engineering Standards and Publications are design
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23、ENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-862-B-1 i Structured Cabling Infrastructure Standard for Intelligent Building Systems Addendum 1: Updated References, Accommodation of New Media Types Table of Contents FOREWORD
24、 . ii 1 SCOPE . 1 2 MODIFICATIONS TO ANSI/TIA-862-B . 1 2.1 General 1 2.2 Normative references (clause 2) 1 2.3 Recognized media for Cabling Subsystem 1 (subclause 4.7) . 1 2.4 Recognized media for Cabling Subsystem 2 and Cabling Subsystem 3 (subclause 5.3) 1 ANSI/TIA-862-B-1 ii FOREWORD (This forew
25、ord 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, and the American National Standards Institute (ANSI). ANSI/TIA reviews standards e
26、very 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 At that time, standards are reaffirmed, withdrawn, or revised according to the submitted updates.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 There are no annexes to this Addendum. Introduction Since the time of publication
27、of ANSI/TIA-862-B 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 specified a new balanced twisted-pair media type, category 8, specified to 2 GHz.
28、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 polarity, and guidelines for field testing of optical fiber cabling are now contained
29、 in this revision, eliminating the need to reference ANSI/TIA-568-C.0 for this information. In addition, a new media type, OM5 wideband laser-optimized multimode optical fiber cabling, is specified. OM1, OM2 and OS1 cabling is no longer supported. ANSI/TIA-862-B-1 1 1 SCOPE This Addendum updates ref
30、erences and accommodates new media types introduced by ANSI/TIA-568-C.2-1 and ANSI/TIA-568.3-D. 2 MODIFICATIONS TO ANSI/TIA-862-B 2.1 General Deleted text is shown as strikethrough. New text is shown as underline. 2.2 Normative references (clause 2) The references within clause 2, “Normative referen
31、ces,” shall be modified as follows: ANSI/TIA-568-C.2-20142009, Balanced Twisted-Pair Telecommunications Cabling and Components Standard NOTE The above reference includes the addendum, ANSI/TIA-568-C.2-1-2016. ANSI/TIA-568.3-D-20152016, Optical Fiber Cabling and Components Standard 2.3 Recognized med
32、ia for Cabling Subsystem 1 (subclause 4.7) The text of 4.7, “Recognized media,” shall be modified as follows: Recognized media for Cabling Subsystem 1 are: a) 4-pair balanced twisted-pair cabling in compliance with ANSI/TIA-568-C.2, category 6, 6A or 8minimum, category 6A recommended; and b) optical
33、 fiber cabling in compliance with ANSI/TIA-568.3-D, two fibers minimum OM4 or OM5 recommended. NOTES 1 - Category 8 performance can be achieved by channels with a maximum of 2 connections to a maximum length of 30 m (98 ft). 2 Category 8 components can be used to construct a category 6A 100 m (328 f
34、t) channel for transmission and power delivery. 2.4 Recognized media for Cabling Subsystem 2 and Cabling Subsystem 3 (subclause 5.3) The text of 5.3, “Recognized transmission media,” shall be modified as follows: Recognized media for Cabling Subsystem 2 and Cabling Subsystem 3 are: a) 100-ohm balanc
35、ed twisted-pair cabling (ANSI/TIA-568-C.2); and b) multimode optical fiber cabling (ANSI/TIA-568.3-D), 2-fiber (or higher) fiber count; 850nm laser-optimized 50/125 m OM3 or higher is recommended c) single-mode optical fiber cabling (ANSI/TIA-568.3-D) 2-fiber (or higher) fiber count. b) optical fibe
36、r cabling (ANSI/TIA-568.3-D) 2 fiber (or higher) fiber count, OM4 or OM5 recommended. NOTES 1 Category 8 performance can be achieved by channels with a maximum of 2 connections to a maximum length of 30 m (98 ft). 2 Category 8 components can be used to construct a category 6A 100 m (328 ft) channel
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