Broadband Applications & Construction Manual

BOSTM BrightPath

Optical Solutions

TableofContents 0.1 BrightPathInstallationGuide

Tableofcontents

Section1............... Introduction

Section2............... Safetystandards

Section3............... BrightPathcablesandcomponents-asystemoverview 3.1Directsystemoverview 3.3Node-basedsystemoverview 3.5Cables 3.6Components

Section4.............. Beforeinstallation 4.1Movingandstoringreels 4.2Routesurvey

Section5.............. Distributioncable-buriedinstallation 5.1Overview 5.2Vibratoryplowing 5.4Trenchingfor1000feetorlonger 5.6Trenchingfor1000feetorless 5.8Trenchingforanydistance

Section6.............. Distributioncable-aerialinstallation 6.1Overview 6.2Drive-off/movingreelset-up 6.3Drive-off/movingreelandleavingcableatthepole 6.4Overlashing

Tableofcontents

Section7................Opticalnodeinstallation 7.1Nodedescription 7.2Nodeinstallation

Section8...............Opticaltapinstallation 8.1Introduction 8.2Midspanentry 8.3Splicingequipment 8.4Splicing 8.5Fiberarrangementandtesting

Section9...............DropandNID/NIUinstallation 9.1Introduction 9.2Planningthedrop 9.3Attachmentexamples 9.4AttachingandgroundingtheNID 9.5Plowingoverview 9.6Trenchingoverview 9.7Aerialinstallation 9.8Pullingcableandpoleattachment 9.9Attachingthecabletotheresidence 9.10RunningcabletotheNID

Section10.............. Connectorcleaningandcare

Section11.............. BroadbandResourceCenter

0.2 TableofContents BrightPathInstallationGuide

HowtousetheBrightPathInstallationGuide

TheBrightPathInstallationGuideiswrittenforthecableinstallationprofessionalwhoispreparingtheirsystemtobringfiberopticsoverthelastmiletothesubscribersresidence.TheBrightPathFiberToTheHome(FTTH)systemisthenextstepinCommScopesHybridFiberCoax(HFC)architecture.WithBrightPath,opticalfiber(anditsassoci-atedbenefitsofspeed,capacityandlongoperationaldistances)isbroughtdirectlytotheresidence.

BrightPathisacraft-friendlytechnology.Thearchitectureofnodes,tapsandcablesshouldbefamiliartocoaxialinstallationcrews.Thecomponentshavebeendesignedforeaseofinstallation.Techniquesusedforburiedandaerialinstallationofcoaxialcablearealmostidentical.And,whileeasilyinstalledingreenfields,theBrightPathtech-nologycanalsobeadaptedtoupgradeexistingnetworks.

Ofcourse,thedifferencebetweenHFCandBrightPathistheuseoffiberopticcableforthedistributionanddropsegmentsofthenetwork.Likecoaxialtermination,fiberopticsplicingisacraft.TheinstructionsprovidedinthisGuideforsplicingandterminationofopticalfibersaregeneral.CommScopestronglyrecommendsthatyoutakeafiberopticsplicingcoursetofamiliarizeyourselfwiththetoolsandtechnologies.

Itisimpossibletocovereverysinglesituationaninstallermayruninto.Theseguidelinesarenoreplacementforyourgoodcommonsenseandexperience.

Itsalwaysgoodtoknowthatyouhavebackupshouldyourunintoadifficultinstallation.Ifyoufindyouneedadvice,callCommScopesBRC(BroadbandResourceCenter)at866-333-3272from9amto5pmETMondaythroughFriday.Werealwaysgladtohelpoutafellowprofessional.

TableofContents 1.1 Forward

Installationsafetyissues

Constructionofabroadbandcablesystemrequiresasubstantialamountofmanpower,toolsandequipment.Undergroundandaerialconstructionwillexposethemanpower,toolsandequipmenttohazards,dependentonfieldconditionsandcircumstances.

TheOccupationalSafetyandHealthAdministration(OSHA)definesaqualifiedemployeeasanyworkerwhobyrea-sonoftrainingandexperiencehasdemonstratedhisabilitytosafelyperformhisduties.Onlyaqualifiedemployeeshouldbeassigneddutiesthatcouldcauseharmorpotentialharmtotheconstructioncrew,generalpublic,cableplant,andotherutilities.

Thismanualcannotidentifythemanyhazardsthatexistintheconstructionenvironment,norcanitdictatethecautionrequiredwithallofthetools,equipmentandfieldconditions.CommScopecontinuesthismanualwiththeassumptionthattheconstructionpersonnelperformingtheworkarequalifiedemployees.

Threesetsofnationalcodesandstandardsapplytotheconstructionofcablesystems.Section1910.268oftheOSHASafetyandHealthStandardsappliestoworkintelecom-municationscentersandfieldinstallations.TheNationalElectricCode(NEC)appliestobuildingutilizationwiring,i.e.insideplantconstruction.TheNECappliesspecifically,butisnotlimitedto,plantthatiswithinoronpublicandprivatebuildingsorotherstructures.TheNationalElectricSafetyCode(NESC),generallyappliestooutsideplantconstruction.

Municipal,state,county,andlocalcodesareoftenappliedtotheconstructionofcablesystemsorworkthatinvolvestheirrespectivepropertiesandright-of-ways.PoleLeaseAgreementsoftenstipulatespecificpracticesrelatedtosafety.

Thesecodes,regulations,andspecifiedpracticesshouldbeinvestigated,interpreted,com-municatedandobserved.

WARNING!Invisiblelaserradiationmaybepresentonallopticalconnectors.Confirmthatthereisnoopticalsignalpresentpriortodirectlyviewinganyopticalfiberorconnector.

The ability to recognize

and avoid hazards is

required of all

construction personnel

2.1 Safety Overview

BrightPathsystem-directconnectionforupto12.4miles(20km)

TheBrightPathsolutionstartsatthepointwheretheHFCfibernormallytransitionstocoaxialdistributioncable.Ifthedistancefromtheheadendtothefurthestsubscriberis20kmorless,theBrightPathsystemcanbespliceddirectlytothefiberatthetransitionpoint.Theheadendsignalisbidirectional,usingdifferentwavelengthsoflightforupstreamanddownstreamtransmission.Eachheadendfibercanserveasmanyas32subscribers.Pleasenotethattheserv-ingcapacityofthesystemislimitedbythenumberoffibersavailablecomingfromtheheadend.

Buriedoraerialmulti-fiberdistributioncablescarryopticalsignalfromthetransitionpointtoatapenclosure.Theweather-hardenedenclosureprotectstheopticaltapmoduleandismountedeitheronthespanorinaped-estal.Here,thedistributioncableisenteredmid-spananditsfibersaccessed.Onefiberissplicedtotheopticaltapmodulethatsplitsthesignalamongasmanyaseightdropsandthensendsthesignalontothenexttapenclosure.

AerialorburiedsinglefiberdropcableconnectstheopticaltaptotheNetworkInterfaceDevice(NID)attheresidence.TheNIDwillholdtheNetworkInterfaceUnit(NIU)whichconvertstheopticalsignaltoRFfortransmissionoverthehomescoaxnetwork.Low-voltagepowerfortheNIUisprovidedattheresidenceandfedthroughacoaxialconnection.

BrightPathCablesandComponents 3.1 Directsystemoverview

ABrightPathdirectsysteminstallationtypicallyhappensinthreephases:

Distributioncableinstallationandpedestalplacement

Acablingcrewinstallsthedistributioncable/fiberopticcableinconduit(FOCIC)andplacesthepedestals.

Splicingthefiberatthetap

Asplicingcrewfollowsthemandsplicesthefibertotheheadendconnectionandthetaps.

RunningthedropandattachingtheNID/NIU

Assubscriberssignup,dropcableinstallationcrewsvisitindividualhomesandattachtheNID,runthedropandterminateitattheNIU.

Whendirectlyconnectedtotheheadendcable,theBrightPathsystemrequiresnoexternalpowerbetweentheheadendandthefinalconnectiontotheNIU.Andbecauseopticalfiberscarrynoelectricalpower,NECarticle830isnotaconcern.

3.2 BrightPathCablesandComponents Directsystemoverview

BrightPathsystem-node-basedconnectionforupto21.7miles(35km)

TheBrightPathnode-basedsolutionstartsatthepointwheretheHFCfibernormallytransitionstocoaxialdistribu-tioncable.Anopticalnodeamplifiestheopticalsignalcomingfromtheheadendanddistributesittoasmanyaseightfiberports.Eachportdeliversenoughsignaltoserve32homes,foratotalof256subscribers.Thenodesignalisbidirectional,usingdifferentwavelengthsoflightforupstreamanddownstreamtransmission.Thenodecanbemountedonthespanorinavaultandispoweredlikeacoaxamplifier.

Uptotwofour-fiberburiedoraerialdistributioncablescarryopticalsignalfromthenodetoatapenclosure.Theweather-hardenedenclosureprotectstheopticaltapmoduleandismountedeitheronthespanorinaped-estal.Here,thedistributioncableisenteredmid-spananditsfibersaccessed.Onefiberissplicedtotheopticaltapmodulethatsplitsthesignalamongasmanyaseightdropsandthensendsthesignalontothenexttapenclosure.

AerialorburiedsinglefiberdropcableconnectstheopticaltaptotheNetworkInterfaceDevice(NID)attheresidence.TheNIDwillholdtheNetworkInterfaceUnit(NIU)whichconvertstheopticalsignaltoRFfortransmissionoverthehomescoaxnetwork.Low-voltagepowerfortheNIUisprovidedattheresidenceandfedthroughacoaxialconnection.

BrightPathCablesandComponents 3.3 Node-basedsystemoverview

ABrightPathnode-basedsysteminstallationtypicallyhappensinthreephases:

Distributioncableinstallationandpedestalplacement

Acablingcrewinstallsthedistributioncable/fiberopticcableinconduit(FOCIC)andplacesthepedestals.

Splicingthefiberatthetap

Asplicingcrewfollowsthemandattaches/powersthenodeandsplicesthefibertothenodeandtaps.

RunningthedropandattachingtheNID/NIU

Assubscriberssignup,dropcableinstallationcrewsvisitindividualhomesandattachtheNID,runthedropandterminateitattheNIU.

BrightPathsopticaltechnologyoffersseveraloperatingadvantagesovercoaxialcable.Sincesignalscanbecarriedformilesbysinglemodeopticalfiber,thelengthsforthedistributionanddropcablearewithoutpracticallimit.And,becauseopticalfiberscarrynoelectricalpower,NECarticle830isnotaconcern.

3.4 BrightPathCablesandComponents Node-basedsystemoverview

BrightPathcables

Distributioncableoptions

BrightPathDA/BPcable,anarmoredcablewithacentraltubedesign,isusedfordirectburialorinburiedconduit.Thesearerobustcableswithprovenfieldrecord.

BrightPathDF/BPisacentraltubecablewithaflatdesignsupportedbytwinfiber-glass-reinforcedplasticsupportmembers.Itcanbedirectlyburied,buriedinconduitorinstalledaerially.

Optionsforhigh-densitybuildsareCommScopesLAstrandedandarmoredloosetubecable(eachsubunitcanholdupto12fibers)andCommScopesLNall-dielectricloosetubecable.Bothcablescanbeinstalledaerially,buriedinconduitordirectlyburied.

Dropcableoptions

CommScopesDF/BPcableisacentraltubecablewithaflatdesignsupportedbytwinfiberglass-reinforcedplasticsupportmembers.Itcanbedirectlyburiedandisalsoself-supportingforaerialinstallation(pleaseseetheDF/BPdatasheetforspecificinfor-mationonsagandtension).

DA/BP,anarmoredcablewithacentraltubedesign,isavailableinasingle-fiberver-sionfordropapplications.

TheseCommScopecablesmeetorexceedallrelevantstandardsandareRoHScompliant.TheRoHS(RestrictionofHazardousSubstances)directivewasadoptedbytheEuropeanUnionin2006,bysomestatesintheUSandisexpectedtobeadoptedbyChina.RoHSisaimedatreducingtheamountofcertainenvironmen-

tallyhazardoussubstancesincablingcomponents.

DA/BP

DF/BP

LA

LN

DF/BP

DA/BP

BrightPathCablesandComponents 3.5 Cables

BrightPathcomponents

Tapenclosureandopticaltapmodule

Thetapenclosureconsistsofthreemainsections;adistributionsideforcon-nectiontothenetwork,adropsideforconnectiontotheresidenceand,sand-wichedbetweenthem,theopticaltapmodule.Thetapisapassive(non-pow-ered)devicethatcanbeorderedwithanywherefromtwotoeightconnectorizedoutputsandnon-connectorizedfibersthatpermitthesignaltocontinuealongthedistributioncable.Thedistributioncablefibersarefusion-splicedtothetap.Dropcablesareconnectorizedandpluggedintoadaptersinthedropside.

NetworkInterfaceDevice/NetworkInterfaceUnit

TheNIDattachestothesideoftheresidenceandhousestheNIU,apoweredopticalconverter/amplifierthatconvertsthedownstream1550nmsignalintoRFfordistribu-tioninthehome.ItalsoconvertsRFintoa1310nmopticalsignalfortransmissionbackupthesamefibertowardtheheadend.TheNIUdrawslow-voltagepowerattheresidence.TheNIUissecuredintheNIDaftertheNIDisattachedtotheresidence.

Opticalnode(fornode-basedsystems)

Theopticalnodeamplifiesandsplitsheadendsignalsfordownstreamdistribu-tionatthe1550nmwavelengthandupstreamatthe1310nmwavelength.Adiplexerseparatesthesignals.Thenodesignificantlyincreasesthe1550nmsig-nalusinganEDFAamplifieranddividesitintoeightfiberoutputs.Typically,twofour-fiberdistributioncableswillleavethenode.

Upstream1310nmsignalsreturnonthesamefiber.Thenodeconditionsandmultiplexesthemfortransmissionbacktotheheadendoverthesamefeederfiberasthe1550nmsignal.Thenodeispoweredlikeacoaxialamplifier.

distributionside

dropside

3.6 BrightPathCablesandComponents Components

Cableandcomponentsstorageandhandling

Cablestorage

Whileboththecableandfiberopticcableinconduit(FOCIC)arebuilttoworkinburiedenvironments,theyshouldbestoredinacoveredlocationwherethetemperaturerangeisnogreaterthan-40Fto+158F(-40Cto+70C).

Reelsareshippedonpalletsandshouldremainonthemuntilreadytoinstall.

Movingreels

Unpalletedreelscanbemovedbyrollingontheirflangesorwithaforklift.Anarrowonthereelshowsrolldirection.

Usetheforklifttopickupthereelsothatthesideofthereelfacesthedriver.DONOTliftthereelbyplacingthetinesbetweentheflanges.DONOTletthetinestouchthecable.

Components

Theopticalnode,taps,NIDsandNIUsshouldbestoredindoorsuntilthedayofinstallation.Nodesshouldbetestedattheshoppriortofieldinstallation.

Becausetheopticaltapmodulesvarywiththenumberofdropstheyserve,theyshouldbeorderedaftertheinstal-lationplanningiscomplete.Thetaphousingsalsorequiregrommetstomatchthetypeofdistributioncablebeingused(seepage3.5).

BeforeInstallation 4.1 Movingandstoringreels

Routesurvey

Priortoinstallation,acarefulroutesurveyshouldbedonetodeterminethebestpathforthedistributioncableandthelocationfortheopticaltaps.

BrightPathpermitsagreatdealofflexibilityininstallation.Thesinglemodefiberarchitecturepermitsrunsofmileswithouttheneedforamplification.Thetapsarepassivedevices,sopowerisonlyneededattheoptionalnodeandattheresidence.Recallthatadirectfeedinstallationcanserveupto32subscribersperfiber,whileanode-basedsystemcanserveupto256subscribers.

Withthissaid,thelocationsofthetapsmustbecarefullyplanned,especiallyforburiedinstallations.

4.2 BeforeInstallation Routesurvey

BuriedinstallationofBrightPathdistributioncable

BrightPathcablecanbeeitherdirectlyburiedorburiedasfiberopticcableinconduit(FOCIC).Itcanbeplowedintopositionusingavibratoryploworburiedinatrench.BuriedBrightPathcableshouldbeinstalledatleast18in.(45cm)deep,anddeeperifthefrostlineisfartherdown.

Forvibratoryplowinginstructions,seepages5.2to5.3.

Fortrenchinginstructions,seepages5.4to5.8.

Upstream/headendorientation

Whatevermethodyouchoose,keepinmindwhichendofthecable/FOCICistheupstreamend.TheBrightPathtapswillnotworkproperlyiftheyareinstalledback-ward.Alwaysknowwhichendisupstream(thesidepointedtowardtheheadend)andmarkitperinstructions.

HandlingFOCIC

FOCICreelsaresubstantiallylargerthantraditionalcablereels.WorkwithyourCommScopecustomerrepresenta-tivetomakesureyourcarriercanaccommodateFOCICreels.

Cutthecablerestraintbeforeinstallation

Priortoinstallation,removetheFOCICendcapandcutthecablerestraint.Thisrelaxesthecableandtransfersallofthepullingtensiontotheconduit.Replacethecapimmediately.

KeeptheFOCICcapped

Makesurebothendsarecappedduringinstallationtomaintainconduitintegrity.

Leavemorethanenoughcableforsplicingtotheheadendcableornode

INALLCABLEINSTALLATIONSCENARIOS,MAkESURETHATyOULEAVESUFFICIENTCABLEFORATTACH-MENTTOTHEHEADENDCABLEORTHENODE.Thenodemaynotyetbeinplacewhenthecableisbeinginstalled.Confirmtheplannedlocationofthenodebeforeinstallation.

For BrightPath taps to operate, they must have

a correct upstream/

downstream orientation

UndergroundDistributionCableInstallation 5.1 Overview

Vibratoryplowingcable/FOCIC

CommScopestronglyrecommendsaprofessionally-engineeredsingleordoublefeedtubeplowbladewithatubeatleast1/2in.(13mm)largerthanthelargestcablesizeandaradiusof12in.(30cm)orlarger.Atminimum,anoperatorandahelper/feederareneededforaplowinginstallation.Becauseterrainandsoiltypesvary,contactyourplowmanufacturerfortheirequipmentrecommendation.

Digatrenchdeepenoughandatleasttwicethelengthoftheplowblade/chutefortheplowbladetoenteritcomfortably.Asimilartrenchshouldbedugattheotherendoftheinstallationandateverypedestallocation.Thecable/FOCICmaypay-offfromthefrontofthetractororfromastationarycablereel.

Inthetractormethod,makesurethereelisnotrunintoobjectsthatmaydamagethecable.Paythecableoverthetopofthereel.Donotusereelbrakes.

Inthestationaryreelmethod,pullthecableendfromthereeltothestartingtrench.Useconestomarkandprotectthecable/FOCICfrompedestrianandvehicletraffic.

CaptheFOCICortapethecableendtoprotectit.Removethebackplatefromthebladeandinspectthefeedtubeforburrs,roughsurfacesandsharpedges.Cleanoutanydirtorrocks.Carefullyplacethecableinthefeedertube.Reattachthebackplate.PullenoughFOCICtoconnecttothesplicepoint.

5.2 UndergroundDistributionCableInstallation Vibratoryplowing

Vibratoryplowingcable/FOCIC-preparingpedestallocations

Stoptheplowateachpedestallocation.Drawatleast15feet(4.6m)ofcable/FOCICthroughtheplowblade.Twisttheloopsothatthecable/FOCICcrossesitselfatgroundlevel.Thetopoftheloopwillbehead-highonanaverage-sizedperson.Plowingmaynowcontinuetothenextpedestallocation.

IfyourrunexceedsthelengthofareelofFOCIC,startthenextreelatthepedestallocation.Leaveatleast7.5feet(2.3m)ofFOCICaboveground.Capeachopenend.

UndergroundDistributionCableInstallation 5.3 Vibratoryplowing

Trenchingcable/FOCIC-runsof1000feet(304m)orlonger

Thistechniqueisrecommendedforrunsof1000feet(304m)andlonger,butcanbeusedforshorterrunsaswell.Thelengthofthecable/FOCICshouldbethelengthofthetrenchPLUS15feet(4.6m)foreverypedestal.Leavesufficientcable/FOCICattheupstreamendtopermitconnectiontothesplicepoint.keeptrackoftheupstreamendthetapmustbecorrectlyorientedwiththeheadendforthesystemtooperate.

Useatractortomakeatrench18in.(45cm)deepalongtheroute.Makesurethetrenchbendsarenottighterthanthecable/FOCICbendradius.Back-pullthecable/FOCICintothetrench.

Setthecable/FOCICatthepedestallocations

Startingatthefarend,back-pullenoughcable/FOCICateachpedestallocationtocreatealoopofatleast15feet(4.6m)incircumference.Thetopoftheloopwillbehead-highonanaverage-sizedperson.Twisttheloopsothatthecable/FOCICcrossesitselfatgroundlevel.

Marktheupstream/headendendofthecable/FOCICwithseveralwrapsoftape.

5.4 UndergroundDistributionCableInstallation Trenchingfor1000feetorlonger

Conduitremovalandplacingthepedestal

Cutandremovetheconduit

IfplacingFOCIC,marktworingcutlocationsontheconduit14feet(4.3m)apartor7feet(2.1m)fromthecenteroftheloop.Usearingcuttertocuttheconduit.Slittheconduitbetweentheringcutswithamechanicalconduitslit-ter.Removethecutconduit.

Placethepedestal

IfplacingFOCIC,leaveabout6in.(15cm)ofeachendofconduitabovegroundlevel.Fillthetrenchandtampdownthedirt.Placethepedestalbaseovertheconduitendsandburyittherecommendeddepthinthedirt.Backfillthetrench.

Loopthecablesothatthepedestalcoverwillfitproperly.Placethepedestalcapinposition.

UndergroundDistributionCableInstallation 5.5 Trenchingfor1000feetorlonger

TrenchingFOCIC-runsoflessthan1000feet(304m)

Thistechniqueisusedforrunsoflessthan1000feet.Thelengthofthecable/FOCICshouldbethelengthofthetrenchPLUS15feet(4.6m)foreverypedestal.Leavesufficientcable/FOCICattheupstreamendtoaccommodateterminationtothesplicepoint.Whenplacingandcuttingthecable/FOCIC,keeptrackoftheupstreamendthetapmusthaveacorrectupstreamorientationforthesystemtooperate.

Useatractortomakeatrench18in.(45cm)deepalongtheroute.MakesurethetrenchbendsarenottighterthantheFOCICbendradius.Back-pullthecable/FOCICintothetrench.

Setthepedestallocations

Placethecable/FOCICinthetrench.Startingattheendawayfromthereel,raiseahalfloopofFOCICwithitscresttwofeetabovethegroundateverypedestallocation.Useasawhorsewithitslegscuttoaheightof25in.(63cm)tosupportthecableatthatheight.

5.6 UndergroundDistributionCableInstallation Trenchingfor1000feetorless

TrenchingFOCIC-runsoflessthan1000ft(304m)

Cutandremovetheconduit

IfplacingFOCIC,ringcuttheconduitatthemidpointofthehalfloop.Marktheupstream/headendendofthecon-duitwithseveralwrapsoftape.

Back-pullatleast15feet(4.6m)ofcableoutoftheconduitorthesameamountofcable.Twistthecableloopsothatthecablecrossesitselfatgroundlevel.NOTE:back-pullingthecablewillcreateemptyconduitatthefarendofthepullthatwillbecutoffafterinstallation.Thisconduitmaybesavedandusedwheretheburieddropemergesattheresidence(seepages9.5and9.6).

Pushtheconduitbackintothetrenchleaving6in.(15cm)ofeachendexposedabovegroundlevel.Fillthetrenchandtampdownthedirt.Placethepedestalbaseovertheconduitendsandburyittherecommendeddepthinthedirt.Backfillthetrench.

Loopthecablesothatthepedestalcoverwillfitproperly.Placethepedestalcapinposition.

UndergroundDistributionCableInstallation 5.7 Trenchingfor1000feetorless

Trenchingcable-runsofanydistance

Thistechniquemayusedforcablerunsofanydistance.ThelengthofthecableshouldbethelengthofthetrenchPLUS15feet(4.6m)foreverypedestal.Leavesufficientcableattheupstreamendtoaccommodateterminationtothesplicepoint.Whenplacingandcuttingthecable,keeptrackoftheupstreamendthetapmusthaveacorrectupstream/headendorientationforthesystemtooperate.

Useatractortomakeatrench18in.(45cm)deepalongtheroute.Makesurethetrenchbendsarenottighterthanthecablebendradius.Back-pullthecableintothetrench.

Setthepedestallocations

Placethecableinthetrench.Startingattheendawayfromthereel,pullandloopatleast15feet(4.6m)ofcable.Marktheupstream/headendendofthecablewithtape.

Fillthetrenchandtampdownthedirt.Placethepedestalbaseoverthecon-duitendsandburyittherecommendeddepthinthedirt.Backfillthetrench.

Loopthecablesothatthepedestalcoverwillfitproperly.Placethepedestalcapinposition.

5.8 UndergroundDistributionCableInstallation Trenchingforanydistance

AerialinstallationofBrightPathdistributioncable

WhileburiedinstallationisthepreferredmethodforplacingBrightPathdistributioncable,aerialinstallationispos-sible.

INSULATEDGLOVESSHOULDBEWORNByALLPERSONNELTHATAREINCONTACTWITHBRIGHTPATHCABLESUNTILTHECONDUCTIVECOMPONENTOFTHECABLEISBONDEDTOTHEGROUNDINGNETWORK.

Takecaretoensurethatconstructionpersonneldonotusebarehandstotouchthemessengerorcable.Constantinspectionandcertificationofinsulatedglovesisrecommended.

AerialDistributionCableInstallation 6.1 Overview

Aerialinstallation-drive-off/movingreelset-upandlashing

Trailerset-up

Paythecableoffthetopofthereelrotatingtowardtherearofthecabletrailer.Useminimalreelbraking.

Attachingthelasher,set-upchuteandcable

Attachalashingwireclamptothestrandfarenoughfromtheinitialpoletoaccommodatethespliceclosureorthenode.Placethelasheronthestrandandattachthelashingwiretothelashingwireclamp.

Positiontheset-upchuteinfrontofthelasherandattachittothelasherwithablockpusher(orshotgun).Attachthepulllinetotheset-upchuteorlasher.

Threadthecablethroughtheset-upchuteandplacethecableinthelasher.Leavesufficientcabletailtoaccommo-datealoop,spliceorequipment.Closethelashergates.

Thecableshouldmoveonlythroughthechute.Ifthepole-lineisoffsetfromthereel,observethecablecloselyasitmovesthroughthechute.Cablereeloffsetmaycausethecabletodragonthereelflangeandthecableinthechutetobind.

6.2 AerialDistributionCableInstallation Drive-off/movingreelset-up

Aerialinstallation-drive-off/movingreel-passingthepole

Passingthepole

Attachalashingwireclampfarenoughfromthepoletoaccommodatethetap.Openthelashergates.Disconnecttheset-upchute,pusherandlasherandpassthemacrossthepole-face.Placethemontheunlashedstrandandreassemblethem.

Closethelashergates.Thelashercannotbepulledbackwardalongthestrandwhilethegatestothelasherareclosed.Cutthelashingwireandsecureittothelashingwireclamp.Makesurethatthelashingwiredoesnotloosenfromaroundthecable.

Attachanotherlashingwireclamptothestrandontheunlashedsideofthepoleallowingenoughroomforatap.Connectthewirefromthelashertothenewclamp.

Placethecableintheset-upchuteandthelasher.

Rotatethecablereeltotakeupanyexcessslack.Continueuntiltheinstallationiscomplete.

Leavecableatplannedtaplocations

Whenpassingthepoleatplannedtaplocation,coil15ft(4.6m)ofcableandstoreitonthepole.Marktheupstreamsideoftheloopwithtape(likeonpage5.8).

AerialDistributionCableInstallation 6.3 Drive-off/movingreelandleavingcableatthepole

Installation-overlashingexistingcable

Overlashcableplacement

Overlashingcablesontoexistingcableplantissimilartoinstallingcableontonewstrand.However,therearesomeuniqueaspects:

Asagandtensionanalysisshouldbeperformedtoseeifthenewcableloadwilloverwhelmthestrand.

Usespecialoverlashcablepullerblocksandcontinuouslymaintainandmonitorthepullinglinetension.Overlashcablepullersdonothaveastrandbrakeandwillbepulledbackwardonthespanbythetensioninthecablesbeingpulled.

Usecableblocksdesignedspecificallyforoverlashapplications.Placethemontothecablebundlewithacableblocklifterandliftthecablewithacablelifter.Duringlashing,removethecableblocksfromthecablebundlewithacableblocklifter.DONOTPUSHTHECABLEBLOCkSINFRONTOFTHELASHERASTHATMAyDAMAGEExISTINGCABLES.

Removeallstrapsandspacersfromtheexistingcablebundleduringlash-up.Newstrapsandspacersmayberequired-checktheoldonescarefullytoseeiftheyneedreplacing.

6.4 AerialDistributionCableInstallation Overlashing

Opticalnodeattachmentfornode-basedsystems

NOTE:ProceedtoSection8ifinstallingadirectsystem.

TheopticalnodesplitsopticalsignalfromtheheadendintoeightportsandamplifiesitfortransmissionalongtheBrightPathcable.Thenodeisconnectedtofiberinputandoutputbyaservicecable.Theservicecableisconnec-torizedatoneendforattachmentinsidethenodecase.Theotherendoftheservicecableissplicedtotheendsoftheinput(headend)andoutput(distributioncable)fibers.

Priortomounting,testthenodeattheshop.

Theopticalnodeispoweredbyaconnectionthrougheitheracoaxialcableorapowersourceatthenode.Thenodecanbesuspendedfromahorizontalcable(strandmount)ormountedinanenclosureorequipmentroom(pedestalorsurfacemount).

Strandmounting

Twostrandclampsareattachedtothetopofthenodeenclosuretomountthenodehorizontallybelowthesuspen-sionstrand.

Usea1/2in.wrenchtoloosentheclampsenoughtoallowtheclampstofitoverthesuspensionstrand.

Hangtheopticalnodefromthestrandbytheclamps.TightenthetwoboltsenoughtoholdtheenclosureonthestrandBUTDONOTtightentheboltsallthewayyet,asyoumayneedtomovethenodeonthestrandtoaccom-modatepowercablesandfiberopticservicecables.

Onlywhenallpowercablesandfiberopticservicecablesareconnectedtothenodeshouldtheclampboltsbefullytightened.Groundtheenclosure,usingasplit-boltgroundingstud.

Pedestalorsurfacemounting

Twothreadedholesarelocatedonthehorizontalcenterlineofthebasehousing.

Removethepedestalmountingplate.Removebothstrandclampbolts-theywillbeusedtofastenthebasetothepedestal/surfacemount.

Laythenodehousingwiththelidsidefacingdown.Placethemountingplateontopofthebasehousingandalignthemountingplateholeswiththetwoholesonthebasehousing.

Securethemountingplatetothenodehousingwithboltsremovedfromthestrandclamps.

OpticalNodeInstallation 7.1 Nodedescription

Opticalnodeinstallationoutline

Groundthenodepriortoopeningit.Asplit-boltgroundingnutisprovided.Forpedestalmounting,thegroundingnutisattachedtoeitherofthestrandclampmountingholes.Forstrandmounting,thegroundingnutisattachedtothebase.

Generalinstructions

Thefollowingisanoutlineforinstallingandpoweringthenode.Thediagramhasbeensimplifiedforclarity.Consulttheinstallationinstructionsthatcamewiththenodefordetailedinformation.

Oncethenodeisattachedandgrounded,thecasemaybeopened.Thepowerchassisneedstoberemovedpriortoattachingthepoweringcableswhichenterthroughtheunitssides.

Thenodeisconnectedtotheheadendanddistributioncablefibersbymeansofaservicecable.Theservicecableistermi-natedwithaneight-fiberlowlossMPOconnectorthatplugsintothenode.Theotherendoftheservicecablehasbarefibersthataresplicedtotheheadendanddistributionfibers.

Splicedfibersneedtobeprotect-edinsideaweatherproofspliceclosure.Refertoinstructionsthatcomewiththespliceclosureforspecificinstallationpractices.

7.2 OpticalNodeInstallation Nodeinstallation

Opticaltapinstallation-introduction

Oncethedistributioncableisplaced,itcanbeenteredandattachedinsidetheopticaltapenclosure.Theenclosurecanbeplacedeitherinapedestalorontheaerialspan.

TheBrightPathtapenclosureisaweather-hardenedunitwherethedistributioncablesendsaresecuredandonefiberisattachedtoanopticaltapmodulethatsplitstheopticalsignalintoasmanyaseightdrops.Theenclosureconsistsofthreesections:

Thedistributionside,whereboththeupstreamanddownstreamendsofthedistributioncablesaresecuredandoneselectedfiberissplicedtothetap,

Thedropside(shownintheillustration),whereuptoeightdropcablesaresplicedtothetapoutputsandsecured,and

Theopticaltapmodule,whichissandwichedbetweenthedistributionanddropsides.Thetapmoduleisalreadyconnectorizedwithbothspliceablefibersexposed;thereisnoneedtoaccessthetapmoduleduringnormalinstallation.Theupstream/inputfiberistaggedwithanIandthedownstream/outputfiberistaggedwithanO.

Upstream/headendorientation

Thisdiagramshowsthedistributionsideofthetapenclosure.NotethatthecableentryareaismarkedINfortheupstream/headendsideofthecableandOUTforthedownstreamside.

Remember,thecablesmustbeorientedcorrectlyforthesystemtooperate.

Cableentrygrommets

Distributioncablescomeindifferentsize/constructionsforthedifferentcable.Makesurethatyouorderthecorrectsizegrommetforyourcable.

OpticalTapInstallation 8.1 Introduction

MidspanentryofBrightPathdistributioncable

DetailsformidspanentryforthesuggestedBrightPathdistributioncablesarecontainedinCommScopesBrightPathTapInstallationdocument.Priortobeginningmid-spanentry,makesurethesetoolsandmaterialsarehandy:

Fiberopticstrippers(e.g.RipleyFO103-S)Roundcablestripper(e.g.RipleyRCS-114)Armoredcablestripper(e.g.RipleyACS-100)Buffertubecutter(e.g.Ideal45-162)Phillipsheadscrewdriver5/16nutdriverScissorsorsnipsUtilityknifeNeedlenosepliersTapemeasure7/16wrenchCabletiesOpticalpowermeterWater-basedlubricant40feetof#6AWGsolidcopperwire

8.2 OpticalTapInstallation Midspanentry

Splicing

Fibersplicingoverview

Oncethefiberhasbeenexposedandthecablesecuredinthehousing,thefibercanbespliced.Fibersplicingrequiresspecializedtoolsandsupplies:

Fibersplicerwithafiberpositioningsystemandtestfunction

Fiberstripper

Fibercleaver

FISspliceprotectionsleeves(F1100240)[drop/branchsplicing]

Smalllint-freetissues(kimwipesorsimilarbrand).

Opticalfibercleaningkit(95-97%isopropylalcoholpacks,cleaningtape)

Opticalpowermeter

Fusionsplicersintegrateaheatsource(usuallyanelectricarc),clampsforholdingthefibers,afiberpositioningsystemandaspliceviewing/lossmeasurementsystem.ThesimplestunitsuseaVgroovetomechanicallymatchthefibersouterdiameters.Moresophisticatedsplicersfeatureautomaticalignmentofthefibercores.

Fiberalignmentistestedforthelowest-losssplicesusingoneofthesetwomethods:

LID(LightInjectionandDetection)systemsinjectlightintothefiberandmeasureitspowerontheoutputside,manually/automaticallyaligningthemforthelowestloss.LIDsystemsmonitorthefibersastheyarebeingfusedandshutoffthearcwhenthelowestsplicelossisdetected.

PAS(ProfileAlignmentSystem)systemsdisplayanimagethatshowsthefibercores,manually/automaticallybringsthemintoalignmentandfusesthem.

OpticalTapInstallation 8.3 Splicingequipment

Splicing

Thefollowinginstructionsaregeneralpracticeforfusionsplicing.Refertotheinstructionsthatcamewiththespliceronhowmuchbuffertostrip,recommendedcleaversandotherspecifics.

Preparethedistributionupstreamfiber

Findthemidpointofthefibertobesplicedintothetapmodule.

Usethefibercleavertocuttheselectedfiberatthemidpoint.Placethespliceprotectionsleeveovertheupstreamendofthefiberandletitslidetowardthebuffertube.

Usethefiberstrippertoremovethefiberbuffer.Cleanthefiberwithalint-freeclothsoakedin95-97%isopropylalcoholtoremovethebuf-ferresidue.Avoidtouchingthebarefiber.

Usethefibercleaveragaintoachieveaperpendicularfaceforthefiber.

Preparethetapupstreamfiber

Strip,cleanandcleavetheopticaltapsupstream/inputfiber(withtheItag)usingthemethodabove.Placebothfiberendsintothesplicerandinitiatethesplicesequence.

Splicethefiberstogether

Thespliceshouldhavealossofnomorethan0.04dB.Ifthelossishigher,cutthefiberandrepeatthesplicingprocess.

Positionthesleeve

Oncethefiberissuccessfullyspliced,placethespliceprotectionsleeveoverthespliceandactivateit.Mostsleevesuseaheat-shrinkplasticreinforcedwithametalrod.(Theunitshownhasanintegratedsleeveheatershownatthebottomofthephoto).

Repeattheprocesswiththedownstreamfiber

Splicethetapmodulesdownstream/outputfiber(withtheOtag)totheremainingfibersegmentusingthissametechnique.

8.4 OpticalTapInstallation Splicing

Arrangingandtestingthefiber

Oncethemechanicalsleeveshavebeenheat-shrunk,snapthemintotheslotstotheleftofthefibermanagementtracks.Then,arrangethefibersinthemanagementtabs,beingcarefultoavoidtightbends.

Thediagramatrightshowsapossiblearrangementwithinthetabs.Anexactroutingisdifficulttorecommendbecauseofvariancesininstallationpractice.However,theinnerandoutertracksprovideanynumberofpossibleroutes.Theonlyessentialsaretoavoidtightbendsandkeepthefiberunderthetabs.

Testingthesplice

Fiberopticsplicesshouldbetestedforcontinuityandattenuation.Ahand-heldpowermeterworkswell.

Totestthesplices,a1550nmsignalissentfromtheheadend,thenodeoralightsourceattheupstreamendofthedistributioncable.

Removethedustcoverfromthetapconnectorandcleanthesurfacewiththeisopropylalcoholsolutionandalint-freewipe.Connectittothepowermeterandactivateit.Themetershouldreadbetween-5dBmand0dBm.

LAandLNcableshaveadditionalbuffertubes.Theycanbecoileduntiltheyfitinsidethecasing.Tietheloopstogetherwithcabletiesandlaythemlooseontopofthemanagementtabs.

Sealtheenclosureandattachit

Thedistributionsideoftheenclosurecannowbeclosedandsealed.Theenclosurecannowbeattachedtotheframeofthepedestalorthepolehardwareattheholesinthetabsateitherthetoporsideoftheenclosure.TheCommScopeuniversalmountingbracketthatcamewiththetapisrecommended.

OpticalTapInstallation 8.5 Fiberarrangementandtesting

Introduction

ThedropcableconnectsthetaptotheNID/NIUlocatedonthestructure.Asoutlinedonpage3.5,thedropcableiseithertheDF/BPflatcableortheDA/BParmoredcentraltubecable.Bothcablescanbeburied;theDFflatcableisself-supportingforaerialinstallations.PleaseconsulttheDFcablespecsheetforspandistances.

Tapenclosureandopticaltapmodule

Thedropsideofthetapenclosurehasuptoeightconnectorizedbulkheadadapters.Dropcablesarethreadedthroughthegrommetsshownatthebottomofthediagram;theyareattachedtotheenclosurebycabletiesandbysecuringtheirstrengthmemberswithretainingscrews.

Withadjustment,thegrommetsfiteitherDF/BPorDA/BPcables.

FibersaresplicedtoSC/APCpigtails(connectorswithfibersattached),placedinthefiberracewaysandpluggedintotheappropriatebulkheadadapter.

NetworkInterfaceDevice(NID)andNetworkInterfaceUnit(NIU)

TheNIDconsistsofaweather-hardenedenclosurethatcontainstheNIU,anelectro-opticalconverter/transmitterandfiberconnection,behindacraft-accessibledoor.

PowerfortheNIUisprovidedfromtheresidence,eitherinsertedovertheRFcoaxorthoughanindependentconnection.Dropcableisterminatedattheenclosureandthepreparedfiberissplicedtoapigtail.Groundingisrequired.

9.1 DropandNID/NIUinstallation Introduction

Planningthedrop

Thetimetakeninexaminingtheroutepriortoinstallationiswellspentandcanhelpyouavoidproblemslateron.youneedtobeawareofissuessuchasright-of-way(ROW),pedestal/taplocationandthedistancecoveredbythedrop.IfusingtheDAarmoredcable,youwillneedtoattachandgroundthecablesarmorattheNID.

KnowyourROW(Right-Of-Way)

Themostdirectroutemaynotbethelegalroute.MakesuretherouteyoureplanningrunsONLyover/underthecustomersproperty.Generally,youcanfollowaparallelpathtopowerorphonelines.NOTE:undernocircum-stanceslashthedroptoanyothercable.

Locatethetap

TheBrightPathtapcanaccommodateasmanyaseightdrops.Thelengthofthedropisrarelyanissue.TheBrightPathsinglemodesignalcantravelahalfamileormore,solongpathsthatavoidarchitecturaldetailsorland-scapingareeasilyhandled.

Selectyourattachmentpointforeaseofgroundingandaccess

Ifreplacinganoldercoaxialinstallation,theexistingentrypointshouldalreadybegrounded.Inanewinstallation,thehomemayalreadyhaveanaccesspointchosen.

Ifyouareselectingtheaccesspoint,trytoattachthecabletothewallorcornernearestthemeter.Ifthatcantbereached,anexteriorcoldwaterpipe(iftheplumbingthroughoutthebuildingandbacktothemainisentirelymetal)oranexistinggroundrodwilldo.Iftheseareimpractical,youwillhavetohammerinagroundrod.

Inshort,keepgroundingissuesinmindwhenplacingtheNID.

DropandNID/NIUinstallation 9.2 Planningthedrop

Attachmentexamplesforrunningthedrop

PedestalandNID/NIUlocationsshouldbeconsideredwithbothROWandgroundingissues.Thetopexampleshowsastraightfor-wardinstallation.Theelectricmeterisontheoppositesideofthebuildingfromthespan,soattachmentnearthecoldwatertapisacceptable.

Themiddleexampleshowsthatthemostdirectroutewouldtrespassonneighboringproperty.Therefore,thedropshouldbebur-ied(orrunalongthespan)andthenangledtothebuilding,eventuallyrunningtowardthemeterandthenbacktothepointofentry.

Thebottomexampleisatoughcall.Itsmarginallyshortertoattachnearthepointofentry,runtothemeterforgroundingpur-posesanddoublebacktothepointofentry.

Inallcases,checkyourlocalcoderequire-mentsandsystemdesignspecificationsforyourprescribedgroundingrequirements.

TipsforgroundingtheNIU

AttachtheNID/NIUascloseaspossibletotheelectricalmeter.Thegroundwireshouldrunhorizontally.Thegroundingwire(14-6AWGinmostcases)shouldbeasstraightaspossible.

Ifgroundingtothemeterisnotpossible,youmaygroundtoanexteriormetalcoldwaterpiperunningintotheearth.Asalastresort,youmaydrivean8groundrodintotheearthandattachthebondingwiretothat,butyouwillneedtogroundALLofthegroundsoftheresidencetothatrod.

9.3 DropandNID/NIUinstallation Attachmentexamples

AttachingandgroundingtheNID

SpecificinstructionsforattachingandinstallingtheNID/NIUarecontainedintheBrightPathNIUInstallationdocument.Priortoinstallation,makesurethesetoolsandmaterialsarehandy:

Fiberopticstrippers(e.g.RipleyFO103-S)Roundcablestripper(e.g.RipleyRCS-114,RipleyACS)Buffertubecutter(e.g.Ideal45-162)Pigtail(e.g.CommScopeZFT-01BF09-8WSCA-01-Bk)Phillipsheadscrewdriver5/16in.nutdriverScissorsorsnipsUtilityknifeNeedlenosepliersTapemeasureCoaxialcable(e.g.CommScopeF677TSVV)CoaxstripperCoaxcrimptool7/16in.wrenchCabletiesRFpowermeterWater-basedlubricantMaterialstoconnecttheNIUtothemaingroundingsystemperNEC820Misc.toolsneededtoattachtheNIDtothecustomerpremisedependentonthetypeofmaterial(i.e.wood,brick,stucco,etc.)

NOTE:TheNIDcanbeattachedtotheresidencepriortoplacingthedropcable.Asmentionedintheinstallationdocument,donotattachthedropcableuntiltheNIUhasbeengrounded.

DropandNID/NIUinstallation 9.4 AttachingandgroundingtheNID

Buriedinstallation-plowfromthepedestal

BrightPathdropcablemaybeinstalledbytrenchingorplowing.BrightPathdropcablesshouldbeburiedtoaminimumdepthof12in.(30cm)or18in.(45cm)incolderclimates.STARTPLOWEDINSTALLATIONSATTHEPEDESTAL.

Useaplowchutewitharadiusequalto(andpreferablylarger)thantheminimumbendradiusofthedropcable.Thechutewidthshouldbeatleast1/2in.(13mm)largerindiameterthanthecable.

Atthepedestalandresidence,digreceivingpitsbetween12and18in.(30and45cm)indepth,6in.(15cm)wide,18in.(45cm)longandinthedirectionofplannedlineoftheinstallation.Theplowbladeshouldbeabletofiteasilyinthesepits.(TheresidencepitmayneedtobelongerastheplowmaynotbeabletogetclosetotheNID).

Removethepedestalcapanddigaholetomeetthereceivingpit.Placetheplowbladecompletelyintheground.CAREFULLyfeedthedropcablethroughtheplowbladeandrunittothebottomofthepitandupthroughtheped-estalbase.Storeatleast7.5feet(2.3m)ofcableinthepedestal.

Thecablemaypay-offfromthefrontofthewalk-behindploworfromastationaryreelalongtheroute.Inthewalk-behindplowmethod,paythecableoverthetopofthereel.Donotusereelbrakes.Inthestationaryreelmethod,pullthecableendfromthereeltothestartingtrench.

Attheresidence,CAREFULLyfeedthedropcablethroughapieceofconduit18in.(45cm)long.ThiswillbeusedtoprotectthecablewhenitisattachedtotheNID.

Thedropcablecannowbeattachedandsplicedper CommScopesBrightPathtapandNIUinstallationdocuments.

9.5 DropandNID/NIUinstallation Plowingoverview

Buriedinstallation-trenchfromtheresidence

BrightPathdropcablesshouldbeburiedtoaminimumdepthof12in.(30cm)or18in.(45cm)incoldercli-mates.STARTTRENCHEDINSTALLATIONSATTHERESIDENCE.

Digthetrenchasstraight,levelandrock-freeaspossible.

Dropcablescanbeplacedinthetrench.Ifthecableisonareel,mountthereelsothatpay-offisunderneathtowardthedirectionofthepull.

Pullandplacethecableinthetrenchwhilewalkingtowardthepedestal.Removethepedestalcapanddigaholetomeetthetrench.

CAREFULLyfeedthedropcablefromthetrenchandupthroughthepedestalbase.Storeatleast7.5feet(2.3m)ofcableinthepedestal.Fillafewfeetofthetrenchtoholdthecableinposition.

GobacktotheresidenceandCAREFULLyfeedthedropcablethroughapieceofconduit18in.(45cm)long.ThiswillbeusedtoprotectthecablewhenitisattachedtotheNID.

ThedropcablecannowbeattachedandsplicedperCommScopesBrightPathtapandNIUinstallationdocuments.

DropandNID/NIUinstallation 9.6 Trenchingoverview

Aerialinstallation

AerialinstallationisanalternatemethodtoruntheBrightPathdrop.Ifconsideringthismethod,makesurethattherearenolocalcovenantsagainstaerialinstallationsofcable.

CommScopeDF/BPflatdropcableworkswellforaerialinstallations.

Atypicalinstallationisshownbelow.DropcablerunsfromthetaptotheattachmentpointontheresidenceandcontinuestotheNIDandthegroundblock.Dropwireclampsattachtohooksatthepoleandtheresidence.IfyouareusingDAarmoredcable,itwillrequiregroundingattheNID/NIU.

Becarefultoobserveminimumdistancesabovethegroundorobjects.

9.7 DropandNID/NIUinstallation Aerialinstallation

Aerialinstallation-pullthecableandattachthecable

Startingfromtheresidence,walkthecableendtowherethetapwillbelocated.Dontletthecablekink,scrape,tangleorgethungupasyouwalk.Pullenoughcabletoalloweasyaccesstothetap.Withthecorrectly-sizeddrop,thereshouldbeenoughcableattheresidencetopermitconnectiontotheNID.Repeatthisforeverydroprunningtothistap.

Attachthedropwireclamp

AttachaQ-hooktothepoleorspan.DF/BPflatcablecanbeattachedtothehookusingadropwireclampnormallyspecifiedfortelephonewire.Modelsinclude:SeniorIndustries#SI-0972Thomas&Betts#23-44441or23-88881MacLeanPowerSystems#2PRMS

Thesedesignsuseashimtotrapthecableintheclampsshell,andthenuseawedgetotightentheshim.Theweightofthecableproducestensionthattightensthewedgeintheshelltosecurethecable.

DropandNID/NIUinstallation 9.8 Pullingcableandpoleattachment

Attachthecabletotheresidence

Usingaladderoralifttruck,climbuptotheattachmentpointandscrewordriveaP-hookorQ-hookintotheresi-dence.Agoodattachmentpointisthecornerofthehouseunderthesoffit.NEVERattachtoanantenna,raingutter,chimney,powermastorlightningrod.Thehookshouldbeparalleltotheground.Theattachmentpointshouldnotbeanycloserthan4in.(10cm)fromatelephonecableor1foot(30cm)fromapowerline.Makecertainyoumeetallclearancerequirements.

Takingthecableinhand,climbuptotheattachmentpoint.Pullthecabletautuntilthesagis1%oftheoveralllengthofthedrop(examples:fora100run,thesagshouldbe1foot;fora50footrun,thesagshouldbe1/2foot).Useyourhandtomarktheplaceonthecablewherethecableandthehookmeetwhilemaintainingpropersag.DONOTpullthecablethroughthehookorattachittothehook.

Attachthedropwireclamp

Selectapointonthecablewherethedropwireclampswedgewouldmeetthecableiftheclampwereattachedtothehook.Usethetechniquedescribedonpage9.8totrapthecableintheclampsshellwiththeshim.Slidethewedgeintotheclamp.Thecablesagcanbeadjustedbyfreeingthewedgeandmovingtheshellandshimalongthecable.

9.9 DropandNID/NIUinstallation Attachingthecabletotheresidence

RunthecabletotheNID

RoutethecablefromtheattachmentpointtotheentrypointfortheNID.Thepathshouldfollowthearchitecturaldetailsoftheresidence,runningdownatthecorners,acrossatbeamsandseamsinthesiding.

Usecableclipstoattachcabletothehouse.Avarietyofscrew-inornail-inclipsareavailableforwoodandmason-ry.Specialsnap-inclipsareavailableforvinylandaluminumsiding.Neverstaplecable.

Placeyourfirstclipsoastoallowforasmalldriploop.Thenplacetheclipsaboutevery3feet(1m)forverticalrunsandnofurtherapartthan18in.(0.5m)onhorizontalruns.

Makesureyoudonotkinkorbendthecabletighterthantherecommendedbendradius(usually10xitsouterdiameter-checkyourcablespecstobecertain).

ThedropcablecannowbeattachedandsplicedperCommScopesBrightPathtapandNIUinstallationdocuments.

DropandNID/NIUinstallation 9.10 RunningcabletotheNID

ConnectorCleaning

CleanconnectorsareessentialtotheproperoperationoftheBrightPathsystem.Evenasmalldustparticlecancausetransmissionproblems.Allconnectorsandadaptersshouldbecleanedpriortomating.

ThoroughinstructionsforfiberinspectionandcleaningarecontainedinCommScopesBrightPathFiberCleaningdocument.Somefibercleaningbasicsarelistedbelow.

Inspectingtheconnector

Removetheconnectordustcap(ifpresent)orremovetheconnectorfromthebulkheadasrequired.Allconnectorsshouldbeinspectedwithafiberscope,aprobe-stylemicroscopewithadapterstoaccommodateBrightPathsSC/APCconnectors.WARNING!Invisiblelaserradiationmaybepresentonallopticalconnectors.Confirmthatthereisnoopticalsignalpresentpriortodirectlyviewinganyopticalfiberorconnector.

Ifforeignmaterialispresent,theconnectorshouldbedrycleanedandre-inspected.Ifaninspectionshowsthatfor-eignmaterialisstillpresent,theconnectorshouldbewetcleaned,drycleanedandre-inspected.Repeatthesestepsasnecessaryuntiltheconnectorisclean.

Drycleaning

Useadrycassette-styleorcard-stylecleaner.SeeCommScopesBrightPathFiberCleaningdocumentforexamplesofdryconnectorcleaners.Placetheconnectorfaceagainstafreshcleaningclothandlightlywipethefaceinthedirectionofthearrow.Donotallowthefacetocontacttheframearoundthecleaningcloth.Anothermethodistorubalint-freeclothovertheconnectorfaceinafigure-eightmotion.

Re-inspecttheconnector.Ifforeignmaterialisstillthere,trywetcleaning.

Wetcleaning

Foldalint-freewipeuntilitisfourtoeightpliesthick.Placeadropof95-97%isopropylalcoholsolutiononthewipe,leavingaportionofthewipedry.

Holdingthewipeinyourhand,placetheconnectorfaceagainstthewetportionofthewipe.Lightlymovethecon-nectorfromthewetareatothedryarea.Donttouchthefacewithanysurfaceexceptthelint-freewipe.Ifthecon-nectorcannotberemovedfromthebulkhead,useaswabslightlymoistenedwithadropoftheisopropylsolution.Drythefacewithafreshwipe.Drycleantheconnectortoremoveresidualmoisture.Re-inspecttheconnector.

10.1 ConnectorCleaningandCare Cleaning

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Buildingareliable,future-proofbroadbandnetworkrequiresnotonlythebesttechnology,butalsoexperienceandassistanceindeployingthattechnology.CommScopesBroadbandResourceCenterstandsreadytoassistyouinyourgoalthetimelyandcosteffectivedeploymentofstate-of-the-artbroadbandservices.

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BroadbandResourceCenter 11.1

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Front CoverTable of ContentsSection 1 - Table of Contents (Foward)Section 2 - SafetySection 3 - BrightPath Cables & ComponentsSection 4 - Before InstallationSection 5 - Underground Distribution Cable InstallationSection 6 - Aerial Distribution Cable InstallationSection 7 - Optical Node InstallationSection 8 - Optical Tap InstallationSection 9 - Drop & NID/NIU InstallationSection 10 - Connector Cleaning & CareSection 11 - Broadband Resource Center