TIA TR-42 Telecommunications Cabling Systems Update

BICSI

January 2009

Introduction

• Herb Congdon– Chair, TIA TR-42

TR-42 Overview

Herb Congdon

TIA

• Telecommunications Industry Association

TIA• A “full service trade

association representing providers of communications and IT products and services for a global marketplace”

• An ANSI-accredited Standards body in information and communications technology (ICT)

• Over 10 main formulating plenary committees and several TAGs for international Standards bodies

• We’re #4!!

TIA - Standards

• Membership– Member Companies– Former Member Companies– Individuals (ECP)– Liaisons– Government

TIA TR-42

• “Original Nine” Subcommittees– 42.1 Commercial Building Cabling– 42.2 Residential– 42.3 Pathways & Spaces– 42.4 Outside Plant– 42.5 Terms, Definitions and Abbreviations– 42.6 Administration– 42.7 Copper Components– 42.8 Optical Fiber Components– 42.9 Industrial

TIA TR-42

• “Additional Five” Subcommittees– Merged from FO-4

• TR-42.11 Optical Systems• TR-41.12 Optical Fibers and Cables• TR-42.13 Passive Optical Devices and

Components• TR-42.15 Fiber Optic Metrology

– New Subcommittee• TR-42.16 Bonding and Grounding

TIA TR-42

• Membership– Consultants– End users– Manufacturers– Press– Government

• Volunteers

• Leadership is elected every 2 years

International De-facto Standardization Organization

How TR-42 Works

Herb Congdon

Process

• New Proposals or Timed Actions• Task Group• Draft Developed• Documents Balloted• Consensus-based Resolution• Re-ballot As Necessary• Documents Released for Publication• Documents Approved for Publication

The NEW568-C.0 Standard

Herb Congdon

568-C – Why?

• ANSI mandates a 5-year life for published standards– Revised, reaffirmed or withdrawn

• TIA-568B published May 2001– >5 years ago

• Many addenda since publication– 6 addenda to 568-B.1– 10 addenda to 568-B.2– 1 addendum to 568-B.3

Improvement Opportunity

• Complaint: Duplicated information– Cause: Synchronizing and updating multiple

documents is complicated– Solution: Centralize common information

Improvement Opportunity

• Complaint: Lengthy development of new Standards– Cause: Creating new premise

Standards is unnecessarily repetitive

– Solution: Establish common information in one document

Improvement Opportunity

• Complaint: Gaps in Standards Coverage– Cause: Standards tend to be too specific– Solution: Start with common information

applicable everywhere, then manage exceptions and allowances specific to the premise

The Plan

Coffee HotChocolate

Solution: A Generic Cabling Standard

• A new standard for generic cabling - 568-C.0, Generic Telecommunications Cabling for Customer Premises– The foundation for future Standards– The cabling Standard when documents specific

to a premises are not available– Consolidates common information in one

document• Content from 568-B.1 & addenda split between C.0

and C.1

Splitting 568-B.1

568-B.1(94 pgs)

568-C.0Generic(~60 pgs)

568-C.1CBC(~35 pgs)

568-C Series Documents

• One New Standard (568-C.0)– 568-C.0 – generic structured cabling

• Three Revisions– 568-C.1 – commercial building cabling

• Office-oriented buildings

– 568-C.2 – copper cabling components– 568-C.3 – fiber cabling components

• Three Document Types– Common Standards

• Generic

• Pathways & Spaces

• Administration, etc.

– Premise Standards• Commercial Building

• Residential

• Data Centers, etc.

– Component Standards• Copper

• Optical Fiber

ANSI/TIA-568-C.2Balanced Twisted-

Pair Telecommunications

Cabling and Components

Standard

ANSI/TIA-568-C.3Optical Fiber Cabling

Components Standard

Premises Standards

Component Standards

Common Standards

ANSI/TIA-568-C.1Commercial Building Telecommunications

Cabling Standard

ANSI/TIA-570-BResidential

Telecommunications Infrastructure

Standard

ANSI/TIA-758-ACustomer-Owned

Outside Plant Telecommunications

Infrastructure Standard

ANSI/TIA-942Telecommunications

Infrastructure Standard for Data

Centers

ANSI/TIA-1005Telecommunications

Infrastructure Standard for

Industrial Premises

ANSI/TIA-568-C.0Generic

Telecommunications Cabling for Customer

Premises

TIA-569-BCommercial Building

Standard for Telecommunications

Pathways and Spaces

ANSI/TIA-606-AAdministration Standard for Commercial

Telecommunications Infrastructure

ANSI-J-STD-607-ACommercial Building Grounding (Earthing)

and Bonding Requirements for

Telecommunications

ANSI/TIA-862Building Automation

Systems Cabling Standard for Commercial

Buildings

Looking Forward

• Over the next 3-5 years– Other premises Standards will be revised to

acknowledge 568-C.0• List appropriate exceptions and allowances

– Existing common Standards modified to broaden scope

• Replace “commercial building” focus and terminology• Become more generic in nature

• New Standards will be built on the foundation of 568-C.0

568-C Series Documents

• 568-C.0 – generic structured cabling – RELEASED (October)

• 568-C.1 – commercial building cabling – RELEASED (October)

• 568-C.2 – copper cabling components – expected in 2009

• 568-C.3 – fiber cabling components - PUBLISHED

568-C.0 Generic Cabling

568-C.0 Generic Cabling

• 568-C.0 Establishes How a Star Network Topology Is Constructed– Does not need to be repeated in every

document– Premise standards define appropriate

allowances and exceptions

568-C.0 Generic Cabling

• 568-C.0 Establishes Cabling Requirements– Applicable to all premise Standards unless

noted as an exception or allowance

568-C.0 Generic Cabling

• 568-C.0 Establishes Generic Cabling Nomenclature– Cabling Subsystem 1, Cabling Subsystem 2

and Cabling Subsystem 3– Distributor A, Distributor B, Distributor C and

Equipment Outlet– Specific nomenclature assigned in premise

Standards

568-C.0 - Generic Cabling Topology

Legend:E O Equipment OutletD A Distributor AD B Distributor BD C Distributor C

Optional cabling

Optional consolidation point

Part 1 of Figure 2

568-C.0 - Generic Cabling Topology

Part 2 of Figure 2

568-C.0 – Generic Cabling• 568-C.0 Incorporates some of the 568-B.1

Addenda– Centralized cabling, patch cord bend radius, etc.

• 568-C.0 Collected Common Information from 568-B.1 and others– Choosing media, Cabling lengths– Bonding and grounding, Polarity– Installation requirements– Application support tables– Optical fiber testing & limits

• NOTE: balanced twisted-pair testing and limits will be in 568-C.2

568-C.0 – Technical Changes

• Installation minimum bend radius for balanced twisted-pair cable– Changed to 4x cable OD for both shielded

and unshielded• Note: Worst case minimum bend radius is now 1.5

inches (not 1.0 inch) since the largest allowable cable OD is 0.354 inches (per 568-B.2-11)

• Adds Augmented Category 6 (shielded and unshielded) as a recognized medium

568-C.0 – Technical Changes

• Patch cable bend radius for balanced twisted-pair cabling– Changed to “1x cable OD” from “0.25 inches”

• Single-mode optical fiber allowed in the horizontal

• Simplex optical fiber

The 568-C.1 Revision

Herb Congdon

568-C.1 – Commercial Building

• Builds on information in 568-C.0

• Contains appropriate allowances and exceptions to 568-C.0 that are specific to office-oriented commercial building cabling

568-C.1 – Commercial Building• Retains use of 568-B.1 nomenclature

– Main Cross-connect (Distributor C in 568-C.0)– Interbuilding backbone cabling (Cabling Subsystem 3

in 568-C.0)– Intermediate Cross-connect (Distributor B in 568-C.0)– Intrabuilding backbone cabling (Cabling Subsystem 2

in 568-C.0)– Horizontal Cross-connect (Distributor A in 568-C.0)– Horizontal cabling (Cabling Subsystem 1 in 568-C.0)– The Telecommunications Outlet (Equipment Outlet in

568-C.0)

568-C.1 – Commercial Building Cabling

Part 1 of Figure 4

568-C.1 – Commercial Building Cabling

Part 2 of Figure 4

568-C.1 – Technical Changes

• From 568-B.1 Addenda– Inclusion of category 6 balanced twisted-pair

cabling– Inclusion of augmented category 6 twisted-

pair cabling– Inclusion of 850 nm laser-optimized 50/125

µm MM fiber– Inclusion of telecommunications enclosures

(TEs)

568-C.1 – Technical Changes

• Inclusion of centralized cabling in the main body of document

• A recommendation to select 850 nm laser-optimized 50/125 µm as the multimode fiber for commercial buildings

568-C.1 – Technical Changes

• Removal of common information (this was moved into 568-C.0)

• Removal of 150-Ohm STP cabling

• Removal of category 5 cabling

• Removal of 50-ohm and 75-ohm coaxial cabling

568-C.1 – Technical Changes

• Removal of balanced twisted-pair cabling performance and test requirements (these will be in the ANSI/TIA-568-C.2 document)– NOTE: optical fiber cabling performance and

test requirements in 568-C.0

The 568-C.2 Revision

• This document addresses:– Category 3, 5e, 6, and 6A– Component specifications– Cabling specification– Mechanical and electrical– Reliability– Field tester specification– Laboratory test methods– STP requirements deleted

‘568-C.2 Development

‘568-C.2 Main Body Structure• Equations for specific

parameters will be listed in a single table for all categories

• The order will be channel, permanent link, and then component requirements.

• Separate annexes for category 3, 5e, 6, and 6A test procedures

‘568-C.2 Parameter Structure• Organize body by

I. cabling/component (e.g. channel)A. parameter (e.g. return loss)

i. all category limits in one tableii. informative table of values

14 Annexes

Normative

A: Connector reliability

B: Measurement requirements

C: Cabling and component test procedures

D: Connector transfer impedance (screened)

14 Annexes, cont.

Informative

E: Connector test fixtures

F: Multiport measurements

G: Higher temperatures

H: Propagation delay derivation

I: Return loss derivation

14 Annexes, cont.

Informative, cont.

J: Modeling configurations

K: Channel and link NEXT loss information

L: PSAACRF and AFEXT loss normalization

M: Category 5 channels

N: Bibliography

Enhancement: Test Procedures

• Separate category 3, 5e, 6, and 6A connecting hardware test methods replaced with one qualified test plug and de-embedding reference jack procedure

Significant Change: Category 5

• Category 5 superseded by category 5e

• Category 5e recommended for 100 MHz operation

• One table of category 5 channel parameters provided

Significant Change: Field Testers

• Field tester requirements removed

• TIA-1152, “Requirements for Field Test Instruments and Measurements for Balanced Twisted-Pair Cabling” pending

New: Coupling Attenuation

• Ratio of transmit power to radiated peak power

• Marked “under study”

• Requirements for category 5e, 6, and 6A screened cable only

• IEC reference measurement

‘568-C.2 Status

• Draft 2.2 available (222 pages!)

• Two committee and one industry ballots complete

• First default ballot circulating– 19 technical changes

– 8 rejected technical comments

‘568-C.2 Publication Timeline

DRAFT 0.5 First PN

Ballot (February)

2/08 6/08 12/08 1/09 5/09

Draft 2.2 We are

here

Draft 1.0 Second PN

Ballot (June)

Published TIA-568-C.2

Standard (August)

First Default Ballot

(December)

Final Default Ballot (May)

Draft 2.0 First

SP Ballot (August)

8/098/08

Planned ‘568-C.2 Comment Resolution

May 5 – 6, 2009

For more informationwww.tiaonline.org

www.bicsi.org

Stay Tuned!

The 568-C.3 Revision: Optical Fiber Cabling Components Standard

Purpose

• Providing component specifications– cable, connectivity and patch cords

• Intended to be used by – Manufacturers– But also end users, designers and installers

• To be used in conjunction with TIA TR-42 premises cabling standards

Documents included in new Standard

• ANSI/TIA/EIA-568-B.3, Optical Fiber Cabling Component Standard

• ANSI/TIA/EIA-568-B.3-1, Additional Transmission Performance Specifications for 50/125 m Optical Fiber Cables

• Parts of ANSI/TIA-568-B.1-7, Guidelines for Maintaining Polarity Using Array Connectors

• “Up to date” changes• And an errata

New nomenclature

• Cabling Subsystems

• Distributors and Equipment Outlet (EO)

• Array connector (multi-fiber connector)

• Array path cords (Type A, B and C)

Cables

• Transmission performance parameters (Table 1)

• Harmonization with ISO nomenclature – OM1, 2 and 3– OS1 and 2

• Optical fiber cables shall contain one or multiple fiber types from Table 1

Optical fiber andcable type 2

Wavelength(nm)

Maximum attenuation

(dB/km)

Minimum overfilled modal

bandwidth-length product

(MHzkm) 1

Minimum effective modal

bandwidth-lengthproduct

(MHzkm) 1

62.5/125 µm MultimodeTIA 492AAAA (OM1)

8501300

3.51.5

200500

Not RequiredNot Required

50/125 µm MultimodeTIA 492AAAB (OM2)

8501300

3.51.5

500500

Not RequiredNot Required

850 nm Laser‑Optimized 50/125 µm MultimodeTIA 492AAAC (OM3)

8501300

3.51.5

1500500

2000Not Required

Single-mode indoor-outdoor

TIA 492CAAA (OS1)TIA 492CAAB (OS2)3

13101550

0.50.5

N/AN/A

N/AN/A

Single-modeinside plant

TIA 492CAAA (OS1)TIA 492CAAB (OS2)3

13101550

1.01.0

N/AN/A

N/AN/A

Single-modeoutside plant

TIA 492CAAA (OS1)TIA 492CAAB (OS2)3

13101550

0.50.5

N/AN/A

N/AN/A

NOTE 1 - The bandwidth-length product, as measured by the fiber manufacturer, can be used to demonstrate compliance with this requirement.NOTE 2 - The fiber designation (OM1, OM2, OM3, OS1 and OS2) corresponds to the designation of ISO/IEC 11801 or ISO/IEC 24702.NOTE 3 - OS2 is commonly referred to as “low water peak” single-mode fiber and is characterized by having a low attenuation coefficient in the vicinity of 1383 nm.

Physical Requirements

• For cable types:– Inside plant cable– Indoor/outdoor cable– Outside plant cable– Drop cable

• For Connectors and Adapters:– Duplex and Array Connectors

• Shall meet the requirements of the corresponding TIA Fiber Optic Connector Intermateability Standard (FOCIS)

– Keying and fiber positions

Strain Relief and Adapter Identification

• Unless color coding is used for some other purpose, the connector strain relief and adapter housing should be identifiable by the following colors:– 850nm laser-optimized 50/125m fiber – aqua– 50/125m fiber – black– 62.5/125m fiber – beige– Single-mode fiber – blue– Angled contact ferrule single-mode connectors –

green

Connector Plug Body Identification

• In addition, unless color coding is used for some other purpose, the connector plug body should be generically identified by the following colors, where possible:– Multimode – beige, black or aqua– Single-mode – blue– Angled contact ferrule single-mode connectors –

green

Connecting Hardware

• Used to join cables in a cabling design

• At the Equipment Outlet (EO)– Minimum capacity of two terminated fibers.– Bend radius not less than 25 mm

• At the Distributors:– Patch Panel

• High-density and ease of management

– Centralized hardware• Should allow for migration

Optical Fiber Patch Cords

• Simplex

• Duplex

A-to-B duplex optical fiber patch cord

Optical Fiber Patch Cord

• Array– three array system connectivity methods are

illustrated in ANSI/TIA-568-C.0– requires a specific combination of

components (array patch cables, transitions, duplex patch cords) to maintain polarity

• Duplex Patch Cords• Type A, B and C Patch Cords• Optical Fiber Transition

Optical Fiber Patch Cords

• Duplex patch cords for Array systems

A-to-B duplex optical fiber patch cord

A-to-A duplex optical fiber patch cord

Optical Fiber Patch Cords

• Type A, B and C Patch Cords

Example of Type-A array patch cord (key-up to key-down)

Optical Fiber Transition

Annex A

• Normative

• Optical fiber connector performance specifications– test samples– performance requirements

Erratum• The erratum is editorial corrections to the

published document– Modification in definitions– References corrections – Copy/paste mistakes

• The erratum is provided to the owners of the original version (June 2008) of the document, free of charge

• For new buyers, an updated document (with the errata incorporated) dated Oct. 31st 2008 is provided