Cisco Systems 1600 Network Router User Manual

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CiscoAironetAccessPointDeploymentGuide 

CiscoSystems

Page26of52

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CommonorDistributedAntennaSystem(DAS)

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Duetothe dual‐bandnatureof theantenna systemon theAP 2600and the AP3600, alongwith key

featuressuch asClientLink2.0 beamforming,theAP 2600andtheAP3600 arenotrecommendedfor

deploymentsonDistributedAntennaSystems(DAS).

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Note:Ciscodoesnotcertify,endorse

orprovideRFsupportforWi‐FideploymentsoveranyDAS.

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The DAS vendor and systems integrator are solely responsible for the support of the DAS products,

adequateRFcoverage,andanyRF‐relatedissues.Thissupportincludes,butisnotexclusiveto,location

accuracy,RFcoverage,roamingissuesr elated

toRF,multipathissues,andscalability.

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TheDASvendor andsystemsintegrator arealsoresponsiblefor understandingthatthe deployedDAS

system meets the requirements of all of the customer Wi‐Fi devices and applications over the DAS

system; this statement includes, but is  not exclusive to, all Voice over

WLAN (VoWLAN) and medical

devices.

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WhileCiscoTechnicalAssistanceCenter(TAC)andCiscofieldteamsdonotprovidesupportforRFissues

thatariseinaCiscoWLANusedoveraDAS,theydoprovidesupportfornon‐RFrelatedissuesinCisco

productsaccordingtothecustomersupportagreementwith

CiscoSystems.



Formoreinformation,seethefollowingURL:

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http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps6973/positioning_statement_c07‐

565470_ps10092_Products_Data_Sheet.html

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Elevators

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ElevatorcoveragecansometimesbeaccomplishedbyplacingAPsinthenearfieldoftheelevator,

typicallyoneachfloorneartheelevatordoor.Sinceelevatorsoftenhavemetaldoors,andtheshaftsare

oftenconcreteorcontainothermaterials thatdegradeWi‐Ficoverage,itisimportanttocheck

the

coverageinsidetheelevator.Elevatorcoveragecanbeachallenge,butitisoftenpossible,especiallyif

theelevatoronlyservesafewfloors.

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Inhighriseelevators,roamingissuesaremoreproblematicbecausetheclientcyclesthroughalarge

numberofAPsratherquickly.Somecompaniesputa

patchantennaonthefloorinsidetheshaftanda

patchantennaonthebottomoftheelevatorcar,whileothercompaniesuseleakycoaxialcablealong

thesideoftheshaft.



WheninstallinganyWi‐Fiequipmentinsideelevatorcarsorshafts,followlocalregulations.Some

installationsmaybe

prohibitedbecauseofsafetyreasons,whileotherinstallationsmaybeprohibitedby

thebuildingownerorlocalfiredepartment.Onlyelevatorrepairpersonsorexperiencedcontractors

shouldperformthistypeofwork.

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Cisco Systems 1600 Network Router User Manual