Introduction to Key Principles of Telecommunications Cabling

Dimitris Filippou Technical Director, Ltd.

IEEE Member, BICSI Country Chair, ELOT Technical Committee TC93 Member,

CENELEC TC215 Delegate of Greek National Committee, CENELEC TC215 WG1, WG2 & WG3 Member dimitrisfilippou@bicsi.org, dfilipp@ieee.org

Dimitris Filippou

Dimitris Filippou

Technical Director

I2QS Ltd.

Tel.: 0030 210 6781087 Mob.: 0030 6945 876240

BICSI E-mail:

dimitrisfilippou@bicsi.org

IEEE E-mail: dfilipp@ieee.org

E-mail:

dfilippou@i2qs.com

Standards Activity

Member TC215 WG1: Cabling Design

TC215 WG2: Cabling Installation – QA and Installation Practices TC215 WG3: Facilities and Infrastructures for Data Centres

Delegate TC215: Electrotechnical Aspects of Telecommunications Equipment

Member TC93: Internal Networks of Electronic Communications for

Houses and Buildings

Country Chair

Member Standard Committee for Cabling Design & Installation

Standards

What are Standards? • Standards represent the minimum required to maintain

compliance.

• Principally about achieving minimum performance from products / standards driven by applications – not end users.

• Standards are considered to be living documents.

• It is important that the region specific standards are quoted in the design and implementation.

Regional Standard Bodies

Who are the national or regional standard bodies? • The International Organization for Standardization (ISO) produces worldwide standards

generated by country members.

• European Committee for Electrotechnical Standardization CENELEC produces European standards generated by EU country members.

• American National Standards Institute (ANSI) produces North American standards.

INTERNATIONAL EUROPE USA

ISO/IEC CENELEC ANSI/TIA

Who Else Is Out There?

Standards and guidance is generated to support Design, Implementation, Methods and Products Interoperability.

There are many ways of doing the job:

Trade Bodies and Standards publication. ETSI (European Telecommunications Standards Institute). ITU (International Telecommunications Union). IEEE (Institute of Electrical and Electronics Engineers, Inc).

Manufacturers recommendations.

Methods Manuals.

Design Guidelines.

Cabling Design Standards

CLC ISO/IEC ANSI/TIA

General Requirements EN 50173-1 11801 568-C.0, C.2, C.3, C.4

Office Premises EN 50173-2 11801 568-C.1

Industrial Premises EN 50173-3 24702 1005-A

Homes EN 50173-4 15018 570-C

Data Centres EN 50173-5 24764 942-A

Distributed Building Services EN 50173-6 862-A

EQP TE

Cabling Link/Channel Configuration

CP TO C C

Link

Channel = 100m

EQP TE CP TO C

Link

Channel = 100m

EQP Cord

EQP Cord

Patch Cord

WA Cord

WA Cord

CP Cable

Horizontal Cable

Horizontal Cable CP

Cable

Interconnect Model

Crossconnect Model

Fundamental Principles

Components Links/Channels

Class A

Class B

Class C

Category 5 Class D

Category 6 Class E

Category 6A Class EA

Category 7 Class F

Category 7A Class FA

ISO/IEC CLC

Frequency

Performance

Components Links/Channels

Category 3 Category 3

Category 5 Category 5

Category 6 Category 6

Category 6A Category 6A

ANSI/TIA

Frequency

Fundamental Principles (cont.) ISO/IEC

CLC ANSI/TIA

Modular Plug/cord

Modular Connector Category

5 6 6A 7 7A

Category 5

Category 6

Category 6A

Category 7

Category 7A

Connection Category

7A

7

6A

6

5

Modular Plug/cord

Modular Connector Category

3 5 6A 6A

Category 3

Category 5

Category 6

Category 6A

Connection Category

6A

6

5

3

Cables and connections of different Categories may be mixed within a channel, however the resultant cabling performance will be determined by the Category of the lowest performing component.

Cabling Installation Standards

CLC ISO/IEC ANSI/TIA

Specification and QA EN 50174-1

14763-2 Partial Coverage in

569-C 758-C

Inside Buildings EN 50174-2

Outside Buildings EN 50174-3

Administration TR 14763-2-1 606-B

Explicit requirements of EN 50173 series but

covering all telecommunications

cabling

Explicit requirements of ISO/IEC 11801

series

Implicit requirements of ANSI/TIA-568 series

Remote Powering CLC TR 50174-99-1

Telecommunications Bonding Standards

CLC ISO/IEC ANSI/TIA

EN 50310:2010 30129:2015 607-B

Application of equipotential bonding and earthing in

buildings with information technology equipment

Information technology – Telecommunications bonding

networks for buildings and other structures

Generic telecommunications bonding and grounding (earthing) for customer

premises

CENELEC

Highlight from EN 50173-1 Introduces the concept of environmental classification M.I.C.E. (Mechanical, Ingress, Climatic and

Chemical, Electromagnetic).

Environmental Class

1 2 3

Mechanical rating M1 M2 M3

Ingress rating I1 I2 I3

Climatic and chemical rating C1 C2 C3

Electromagnetic rating E1 E2 E3

– The requirements of a given classification cover the requirements of a lower classification, i.e. channels designed to operate under environmental conditions defined by M2 shall continue to operate under environmental conditions by M1.

– Specifies Channels for balanced and optical fibre cabling media. – Specifies channels for coaxial cabling. – Specifies the minimum component requirements in support of these cabling elements. – Provides a list of applications supported by generic cabling systems.

Highlights from EN 50173-1

Classes for balanced cabling: Class A: specified up to 0.1MHz; Class B: specified up to 1MHz; Class C: specified up to 16MHz; Class D: specified up to 100MHz; Class E: specified up to 250MHz; Class EA: specified up to 500MHz; Class F: specified up to 600MHz; Class FA: specified up to 1000MHz.

Channels of a given Class will support all applications of a lower Class. Classes for coaxial cabling: Class BCT-B: specified up to 1000MHz. The insertion loss performance of BCT-B cabling is further subdivided into

three sub-Classes, L, M and H.

Highlights from EN 50173-1

Optical fibre: It is important to know that CENELEC cable attenuation specifications are for

cabled optical fibre (finished product) not raw glass optical fibre. Introduction of plastic optical fibre (OP1 & OP2) and plastic clad silica optical

fibre (OH1) cables for the industrial and residential cabling standards. New optical fibre Category OM4. New Singlemode fibre type introduced OS2 (zero water peak fibre). New connecting hardware requirements, defines both a new interfaces for 2

optical fibres, 12 and for 24 fibres. New color for connector identification:

Multimode: beige or black; Singlemode (Physical Contact): blue; Singlemode (Angled Physical Contact): green.

Losses for connectors have more than one value: 50% of mated connections shall be better than 0.35dB loss; 0.5dB for 95% of matings; 0.75dB for 100% of matings.

New EN 50600 Data Center Design Standard

CLC TC215 WG3 has started a new project EN 50600 Data Centre facilities and infrastructures: EN 50600 – Part 1: General concepts. EN 50600 – Part 2-1: Building construction. EN 50600 – Part 2-2: Power distribution. EN 50600 – Part 2-3: Environmental control. EN 50600 – Part 2-4: Telecommunications cabling infrastructure. EN 50600 – Part 2-5: Physical security. EN 50600 – Part 2-6: Management and operational information. EN 50600 – Part 3-1: General design principles. EN 50600 – Part 3-2: Measurements methodologies, test methods and report

formats.

This series of European Standards does not address the selection of information technology and network telecommunications equipment, software and associated configuration issues.

ISO/IEC

Highlights from ISO/IEC 11801 Amd.1

New parameters introduced to cover the Alien Crosstalk terminology: AACR-F, Attenuation to alien crosstalk ratio at the far-end; ACR-F, Attenuation to crosstalk ratio at the far-end; ACR-N, Attenuation to crosstalk ratio at the near-end; ANEXT, Alien near-end crosstalk (loss); AFEXT, Alien far-end crosstalk (loss). ALTCTL, Equal level TCTL. PS AACR-F, Power sum attenuation to alien crosstalk ratio at the far-end. PS AACR-Favg, Average power sum attenuation to alien crosstalk ratio at the

far-end. PS ACR-F, Power sum attenuation to crosstalk ratio at the far-end. PS ACR-N, Power sum attenuation to crosstalk ratio at the near-end. PS AFEXT, Power sum alien far-end crosstalk (loss). PS AFEXTnorm, Normalized power sum alien far-end crosstalk. PS ANEXT, Power sum alien near-end crosstalk (loss). PS ANEXTavg, Average Power sum alien near-end crosstalk (loss).

Highlights from ISO/IEC 11801 Amd.2

Copper Cabling Items Defines the component, Link and Channel performance for balanced twisted pair copper. Cable impedance 100Ω for Classes D to FA or 120Ω for Classes A to C. Class C up to 16MHz; Class D up to 100MHz; Class E up to 250MHz; Class EA up to 500MHz; Class F up to 600MHz; Class FA up to 1000MHz. Component definitions for Category 6A and Category 7A to make Class EA, Class FA Links and Channels. Nominal conductor diameter for copper cabling 0.5 to 0.65mm. Current carrying capacity modified to allow provision for Power over Ethernet Plus and recognition of

the temperature effects where cables are bundled.

Highlights from ISO/IEC 11801 Amd.2

Copper Cabling Items New IEC definitions of cable construction/design with corresponding IEC definitions for

performance.

Highlights from ISO/IEC 11801 Amd.2

Questions

Dimitris Filippou Technical Director, Ltd.

IEEE Member, BICSI Country Chair, ELOT Technical Committee TC93 Member,

CENELEC TC215 Delegate of Greek National Committee, CENELEC TC215 WG1, WG2 & WG3 Member dimitrisfilippou@bicsi.org, dfilipp@ieee.org