the operational impact of optical fibre … · contents the enemy within technological change...

P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721

CONTENTS

The Enemy Within

Technological Change

Living with Contamination

The Way Forward

THE OPERATIONAL IMPACT OFHIGH BIT RATE

OPTICAL FIBRE NETWORKS

Mike GilmoreFIA Technical Director

technical@fia-online.co.uk

FIATHE OPERATIONAL IMPACT OFHIGH BIT RATE

Mike Gilmore

CONTENTS

The Enemy Within

The Way Forward

Mike Gilmore

Managing Directore-Ready Building Limited

Mobile: +44 (0) 7860 110563

FIA e-mail: technical@fia-online.co.uk

e-mail: mike.gilmore

@e-readybuilding.com

Standards Activities

MemberJTC1 SC25 WG3: Generic Cabling

Convenor TC215 WG1: Cabling design

Secretary TC215 WG2: Cabling installation - QA and installation practices

Member TC215 WG3: Facilities and infrastructures: Data Centres

Past-ChairmanTCT7: Telecommunications - Installation Requirements

Chairman TCT7/-/1: Cabling: Infrastructure design, planning and commissioning

Secretary TCT7/-/2: Cabling; Installation and UK implementation

TCT7/-/3: Facilities and infrastructures

Technical and Standards DirectorFibreoptic Industry Association

FIAwww.fia-online.co.uk

DirectorTelecommunications Infrastructure

Advisory Board

Leader - Special Task Force 362 Energy Efficiency and Broadband Deployment

www.tiab-online.co.uk

Industry Roles

CONTENTS

The Enemy Within

The Way Forward

The Enemy Within!

Optical fibre has proven itself to be a reliable, hi-bandwidth medium

“Apparent” reliability has allowed bad habits to develop

Significant changes to network demands undermine “apparent” reliability

The absence of “end-caps” is symptomatic of bad practice

End-caps do not “in themselves” prevent contamination

Problems may be more deep-seated

Contamination control presents an administrative challenge

CONTENTS

The Enemy Within

The Way Forward

Network Tolerance - 10/100 Mb/s

Channel length (m)

10/100 Mbit/s

Cable loss

Loss allowedfor connections

Max. length supported

10BASE-F and 100BASE-F - targeted at backbone implementations

Typical campus or building backbone length

CONTENTS

The Enemy Within

The Way Forward

Network Tolerance - 1000 Mb/s

Channel length (m)

1000 Mbit/s

10/100 Mbit/s

Cable loss

1000BASE-SX - targeted at data centre and backbone implementations

Typical campus or building backbone length

CONTENTS

The Enemy Within

The Way Forward

Network Tolerance - 10 Gb/s

Channel length (m)

10 Gbit/s

1000 Mbit/s

10/100 Mbit/s

Cable loss

78% of all data centre “switch-switch” lengths

1000BASE-SX - targeted at data centre and backbone implementations

CONTENTS

The Enemy Within

The Way Forward

Network Tolerance - 40/100 Gb/s

10 Gbit/s

40/100 Gbit/s

Channel length (m)

1000 Mbit/s

10/100 Mbit/s

Cable loss

78% of all data centre “switch-switch” lengths

78% of all data centre “switch-server” lengths

40G/100GBASE-S* - targeted at data centre implementations

CONTENTS

The Enemy Within

The Way Forward

Moving The Goalposts - I

High bit rate applications illuminate only part of the optical fibre

1,25 mm

LED launch

VCSELlaunch

0,05 mm50 m

CONTENTS

The Enemy Within

The Way Forward

Moving The Goalposts - II

Parallel

optics

Simplex

optics

Higher bit rate applications adopt parallel optics

CONTENTS

The Enemy Within

The Way Forward

Customer Premises Cabling

DATA CENTRES

Zone distributioncabling subsystem

Main distributioncabling subsystem

Intermediate distribution cabling

subsystem

Source: ISO/IEC 24764 + A1:2011 andEN 50173-5 + A2:2011

Multiple connections within a channel (saving equipment costs)Forced air cooling

Many unused optical fibre ports (initially) - pragmatic resilience

CONTENTS

The Enemy Within

The Way Forward

Knowledge Transfer

CORE/ACCESS

NETWORKS

CUSTOMER PREMISES

NETWORKS

Core~ 9 m

Small core - susceptible to contamination Larger core Smaller “lit” area

Few de-mates/re-mates Multiple de-mates/re-mates

Simplex optics

Parallel optics

“One out - all out” risk

CONTENTS

The Enemy Within

The Way Forward

ContagionTHIS SLIDE CONTAINS INFORMATION AND IMAGES PROVIDED BY JDSU

FAILURE TO INSPECT UNTIL PROBLEMS OCCURCAN CAUSE PERMANENT DAMAGE

After mated contaminated is removed, pits and chips may remain in the opticalfibre rendering the contamination outcomes permanent

CONTENTS

The Enemy Within

The Way Forward

The Old Ways

INSTALLATION

TESTING

OPERATION

Assume anything that arrives in plastic bag to be “clean”Only inspect on-site termination work

Never inspect

until test results begin to show systematic problems

Assume anything that has an “end-cap” to be “clean”

If a fault occurs following connection:

Give the plug a quick “polish”

Choose a new connection from the paneluntil you find one that works

CONTENTS

The Enemy Within

The Way Forward

The New World

25120130 250 A

BCladding

CAdhesive

DContact

ScratchesDefects

CIRCULARRECTANGULAR

BS EN 61300-3-35:2010

Fibre optic interconnecting devices and passive components - Basic testand measurement procedures - Part 3-35: Examinations and measurements -Fibre optic connector endface visual and automated inspection

ApplicabilityOptical fibre

Connector styles

SINGLEMODEMULTIMODE

Requirements

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The Enemy Within

The Way Forward

Inspect and Clean

BS EN 61300-3-35:2010 Removing human-dependent assessment

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The Enemy Within

The Way Forward

The FIA Initiative

FIA 200 members

Suppliers Installers Users

APPROVED INSTALLER SCHEME

AUDIT AND ARBITRATION SCHEME

TECHNICAL SUPPORT DOCUMENTS

WHITE PAPERS (www.fia-online.co.uk/epaper-FIA.htm)

OpenAccess

CONTAMINATION MANAGEMENT (2012)

Application Support

Testing

“Fair” SpecificationRisk Managed Planning and Installation

SuppliersASSESSMENT

SuppliersCLEANINGPRODUCTS

FIATechnical Directorate

Installation

Testing

Operation

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The Enemy Within

The Way Forward

Practical Connections

10 Gbit/s

40/100 Gbit/s

Channel length (m)

1000 Mbit/s

10/100 Mbit/s

Cable loss

No room to manouevre

The statistical loss of two worst case “clean” connections

EQP EQP

Channel

CONTENTS

The Enemy Within

The Way Forward

We do not fight

Hospital Acquired Infectionby wiping our hands on our clothes

Manage the problem properly

orsuffer the consequences

CONTENTS

The Enemy Within

The Way Forward

The fibre optic cleaning shirt(sleeve)

DOES NOT EXIST!

Manage the problem properly

orsuffer the consequences

CONTENTS

The Enemy Within

The Way Forward

Mike Gilmore

the operational impact of optical fibre … · contents the enemy within technological change...

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