network iq training manual chapter 4 - fibre optic hardware

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Network IQ Training ManualChapter 4 - Fibre Optic Hardware

2© Corning Incorporated 2014Network IQ Programme

Resources | Glossary | Help Fibre Optic Hardware

Common Hardware SelectionPurpose of HardwareLocation of HardwareFibre CountEnvironmental considerations

Common Termination SolutionsPigtail SplicingField Installed connectorsPre-terminated cable assemblies

Recommended Installation PracticesTermination MethodCable ManagementRouting within the cabinet

Summary


Resources | Glossary | Help Purpose of Hardware

Fibre optic hardware is used to:Provide protection to fibre terminations and/or splicesProvide a location where patching and Moves, Adds and Changes (MACs) can take placeProvide an end point to cables for testing purposesIntelligent patching actively monitors physical layer connections


Resources | Glossary | Help

Direct Termination

Hardware with Splice Option

Fibre Count

• Capacity of the hardware should match the fibre count of the cables being terminated

• Capacity of a product is dictated by:– number of ports on the

patching field– number of splices in the

splice trays– number and size of cables

(accessories for grounding and strain relieving)

Fiber Count is 72

Fiber Count is 288


Resources | Glossary | Help Different Choices from small to DataCentre

Data Centre Equipment – High Density in 1U – 4U up to over 3000 ports in 4U

Local Area Network Hardware with low to

medium density

24 – 288 fibre ports



Wall mountable hardwareFloor mountable hardware

Location of Hardware

• Hardware can be installed in a number of different locations

– Inside a rack or cabinet– On a bare wall– Fitted into a wall

mounted raceway or conduit

– Fitted under a raised floor

– Environment: indoor, outdoor, industrial

Rack mountable hardware


Resources | Glossary | Help Environmental considerations Ingress Protection (IP) Rating

• Is the hardware installed inside or outside?– Externally mounted hardware

should be water tight

• Ingress Protection requirements– Defined in EN 60529– e.g. IP67 = ingress protection

from dust and can be placed short-term under water

• IP 69K defined in German DIN 40050-9 high-pressure (80-100bar) and steam (80°C) cleaning

• In US: NEMA rating (National Electrical Manufacturers Association)

1st Digit: Solid objectProtection

2nd Digit: MoistureProtection

0 No protection 0 No Protection

1 Protected against solid objects > 50mm

1 Protected against dripping

2 Protected against solid objects > 12mm

2 Protected against dripping water when tilited < 15°

3 Protected against solid objects > 2.5mm

3 Protected against spraying water

4 Protected against solid objects > 1.0mm

4 Protected against splashing water

5 Dust protection 5 Protected against water jets

6 Dust tight 6 Protected against heavy seas

EN 60529 does not address risk of explosion or moisture condition e.g. caused by condensation, corrosive vapor, fungus, insects

7 Protected against immersion

8 Protected against submersion


Resources | Glossary | Help Installation Recommendations

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• Routing of cable to hardware• Slack storage and management• Cable Management• Installation of cable into hardware

– Pre-terminated cable installation– Field terminated cable installation


Resources | Glossary | Help Routing of Cable to Hardware

Adequate containment for the cables should be provided either overhead or

under the raised floor

Power, fibre and copper cables are usually kept separated

Containment can either be a solid plastic structure which fits together to

create a pathway…..

…or can be a metal mesh framework

that can be cut and shaped to create

the pathway


Resources | Glossary | Help Slack Storage and Management

Service loops

should always be provided on the network

Service loops allow the installer to:

Work at a convenient location

Reconfigure or move the hardware if required

Re-terminate the cable in the event of errors

Service loops should be:

About 1.5m long

In or under the server cabinet

At every third floor in the building riser

Where the main incoming cable enters the building

If possible, service loops should be stored on the containment on dedicated tray work


Resources | Glossary | Help Cable Management

• Most important sellable feature of optical hardware

• Where end-user interface occurs• Helps to maintain fiber radius• Aids the overall management of

the physical layer in the closet


Resources | Glossary | Help Cable Management from this….


Resources | Glossary | Help …to this structure



Cable entry using PG glandHardware specific strain relief

Installation of Cables into Hardware

Cable entry into the hardware is through either a cable gland or a slot in the hardware.

Number, size and type of cable must be taken into account when choosing the hardware.

Cables should be strain relieved to prevent damage to the exposed fibres should the cable be pulled.

Provide strain relief accessories for all cable to be terminated

Armoured cables requires grounding features and accessories


Resources | Glossary | Help Installation of Cables into Hardware


Resources | Glossary | Help Termination Methods

There are three ways of terminating fibres within a piece of hardware

Pigtail SplicingAccessories are required to house the splices

Hardware should have the provision to hold the splice trays

Hardware must have space to store cable or buffer tube slack

Direct-/ Field terminationHardware must have space to store 900µm fibres or buffer tube fan out kits

No additional accessories (eg. Splice trays) are required

Pre-terminated cablesHardware must have a slotted cable entry feature (not glanded)

Hardware must have space to store cable leg length


Resources | Glossary | Help Pigtail Splicing

Field cables prepared and mounted in rear of panel;

field fibres routed to splice cassettes

Pigtail fibres prepared and routed to splice cassettes

Splice cassettes selected with

correct organizers: Heat shrink fusion protectorCrimp fusion protectorMechanical splice

Patching area (adapters)

and pigtailsSelect connector style and

fibre type


Resources | Glossary | Help Direct Termination

Once cables are strain relieved, they can be stripped back to expose the fibres.

Field installable connectors are then fitted and plugged into the adaptors.

Loose tube cables require furcation tubing


Resources | Glossary | Help Pre-terminated, Modular System: Plug & Play/EDGE

• Saves Installation Time• Factory Tested• Consists of 3 modular components

1. Trunk – Small diameter, high fibre count (up to 144f)– Pulling grip protects connectors to 45Kg

2. Harness– Break out MTP connector for direct attach to actives

3. Module– Break out MTP connector to preferred single-fibre connector at patch panel


Resources | Glossary | Help Installation of pre-terminated Cables into Hardware

Furcation of pre-terminated cables requires “epoxy plug”

Epoxy plug is typically strain-relief point of cable

Hardware should have easy-to-install solutions for epoxy plug


Resources | Glossary | Help Closures

Choice of closure determined by: MountingCapacityMid-span possibilityType of cables (accessories)

Mounting:Direct buried/handholeAerialPole/wall (manhole) mounting

Capacity determined by Number of splicesType of splice protectorsNumber and size of cablesNumber of buffer tubes

Type of cables:Armoured (grounding features + grounding kits)

Direct buried(in-line)

Handhole(in-line) (dome)

Aerial (in-line)

Pole mounting (dome)

Splice capacity: ≤ 168 (heat-shrink or crimp)

Cables # ≤ 4; Ø ≤ 21 mm

Buffer tubes ≤ 28 per side


Resources | Glossary | Help Summary - Fibre Optic Hardware

Mounting Options

Wall

Floor

Rack

Termination OptionsPigtail Splicing

Direct Termination

Pre-terminated

Important Considerations During Installation

Strain-relief of cable

Proper fibre/cable routing

Slack storage

Environmental protection

ClosuresSpecial Solutions (see Reference pages)

Intelligent HardwareHigh Density

network iq training manual chapter 4 - fibre optic hardware

Documents

corning incorporated

mounted hardware

ulocal area network

fibre portsnr

fibre optic hardwarestart

solid objects 50mm1protected

solid objects 12mm2protected

water ip