Transcript TIA TR-42 Telecommunications Cabling Systems Update

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 NEW
568-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– Revised, reaffirmed or withdrawn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
568
942
758
1005
???
Coffee
The Plan
Hot
Chocolate
Solution: A Generic Cabling
Standard
• A new standard for generic cabling - 568C.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.0
Generic
(~60 pgs)
568-C.1
CBC
(~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
Common
Standards
Premises
Standards
ANSI/TIA-568-C.0
Generic
Telecommunications
Cabling for Customer
Premises
ANSI/TIA-568-C.1
Commercial Building
Telecommunications
Cabling Standard
TIA-569-B
Commercial Building
Standard for
Telecommunications
Pathways and
Spaces
ANSI/TIA-606-A
Administration
Standard for
Commercial
Telecommunications
Infrastructure
ANSI-J-STD-607-A
Commercial Building
Grounding (Earthing)
and Bonding
Requirements for
Telecommunications
ANSI/TIA-862
Building Automation
Systems Cabling
Standard for
Commercial
Buildings
ANSI/TIA-570-B
Residential
Telecommunications
Infrastructure
Standard
ANSI/TIA-758-A
Customer-Owned
Outside Plant
Telecommunications
Infrastructure
Standard
ANSI/TIA-942
Telecommunications
Infrastructure
Standard for Data
Centers
ANSI/TIA-1005
Telecommunications
Infrastructure
Standard for
Industrial Premises
Component
Standards
ANSI/TIA-568-C.2
Balanced TwistedPair
Telecommunications
Cabling and
Components
Standard
ANSI/TIA-568-C.3
Optical Fiber Cabling
Components
Standard
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
DC
Cabling
Subsystem 3
Cabling
Subsystem 3
Part 1 of Figure 2
DB
DB
Cabling
Subsystem 2
DA
Cabling
Subsystem 1
DA
Cabling
Subsystem 1
Legend:
EO
Equipment Outlet
DA
Distributor A
DB
Distributor B
DC
Distributor C
Optional cabling
EO
Optional consolidation point
Legend:
EO
Equipment outlet
DA
Distributor A
DB
Distributor B
DC
Distributor C
EO
EO
EO
EO
DC
Cabling
Subsystem 2
EO
EO
DA
DA
Subsystem 1
Cabling
Subsystem 1
568-C.0 - Generic Cabling
Topology
EO
EO
EO
EO
EO
EO
EO
DC
Part 2 of Figure 2
Legend:
EO
Equipment outlet
DA
Distributor A
DB
Distributor B
DC
Distributor C
Optional cabling
Cabling
Subsystem 2
Cabling
Subsystem 1
Optional consolidation point
DA
Cabling
Subsystem 1
EO
EO
EO
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 568C.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)
MC
568-C.1 – Commercial Building
Cabling
Backbone
cabling
Backbone
cabling
IC
IC
Backbone
cabling
MC
HC
Backbone
cabling HC
Part 1 of Figure 4
IC
Horizontal
cabling
TO
Backbone
cabling
Horizontal
cabling
TO
Backbone
TOcabling TO
TO
IC
TO
HC
TO
Horizontal
cabling
HC
MC
Horizontal
cabling
Legend:
TO
HC
IC
MC
TO
Backbone
cabling
TO
TO
TO
Telecommunications outlet (equipment outlet)
Horizontal cross-connect (Distributor A)
Intermediate cross-connect (Distributor B)
Main cross-connect (Distributor C)
TO
MC
Horizontal
cabling
Optional cabling
Optional consolidation point
TO
HC
Legend:
TO
Telecommunications outlet (equipment outlet)
HC
Horizontal cross-connect (Distributor A)
Backbone
cabling
TO
Backbone
cabling
HC
Backbone
cabling
Horizontal
cabling
HC
568-C.1 – Commercial Building
Cabling
IC
IC
Horizontal
cabling
Backbone
cabling
TO
TO
TO
HC
TO
TO
TO
TO
Horizontal
cabling
HC
MC
Part 2 of Figure 4
Horizontal
cabling
TO
Legend:
TO
HC
IC
MC
TO
TO
Backbone
TO
cabling
Telecommunications outlet (equipment outlet)
Horizontal cross-connect (Distributor A)
Intermediate cross-connect (Distributor B)
Main cross-connect (Distributor C)
TO
TO
TO
MC
Horizontal
cabling
Optional cabling
Optional consolidation point
Legend:
TO
HC
IC
MC
Telecommunications outlet (equipment outlet)
Horizontal cross-connect (Distributor A)
Intermediate cross-connect (Distributor B)
Main cross-connect (Distributor C)
HC
Backbone
cabling
Horizontal
cabling
Horizontal
cabling
TO
Optional cabling
HC
Optional consolidation point
Horizontal
cabling
TO
TO
568-C.1 – Technical Changes
• From 568-B.1 Addenda
– Inclusion of category 6 balanced twisted-pair
cabling
– Inclusion of augmented category 6 twistedpair 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 laseroptimized 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
‘568-C.2 Development
• 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 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 table
ii. 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 1.0
Second PN
Ballot
(June)
DRAFT 0.5
First PN
Ballot
(February)
2/08
First
Default
Ballot
(December)
Draft 2.0
First
SP Ballot
(August)
6/08
8/08
Draft 2.2
We are
here
12/08 1/09
Published
TIA-568-C.2
Standard
(August)
Final
Default
Ballot
(May)
5/09
8/09
Stay Tuned!
Planned ‘568-C.2
Comment Resolution
May 5 – 6, 2009
For more information
www.tiaonline.org
www.bicsi.org
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 and
cable type 2
Wavelength
(nm)
Maximum
attenuation
(dB/km)
Minimum overfilled
modal
bandwidth-length
product
(MHzkm) 1
Minimum
effective modal
bandwidth-length
product
(MHzkm) 1
62.5/125 µm Multimode
TIA 492AAAA (OM1)
850
1300
3.5
1.5
200
500
Not Required
Not Required
50/125 µm Multimode
TIA 492AAAB (OM2)
850
1300
3.5
1.5
500
500
Not Required
Not Required
850 nm Laser-Optimized
50/125 µm Multimode
TIA 492AAAC (OM3)
850
1300
3.5
1.5
1500
500
2000
Not Required
Single-mode
indoor-outdoor
TIA 492CAAA (OS1)
TIA 492CAAB (OS2)3
1310
1550
0.5
0.5
N/A
N/A
N/A
N/A
Single-mode
inside plant
TIA 492CAAA (OS1)
TIA 492CAAB (OS2)3
1310
1550
1.0
1.0
N/A
N/A
N/A
N/A
Single-mode
outside plant
TIA 492CAAA (OS1)
TIA 492CAAB (OS2)3
1310
1550
0.5
0.5
N/A
N/A
N/A
N/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 50/125m fiber – aqua
50/125m fiber – black
62.5/125m 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