Cisco Systems 1600 Network Router User Manual

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

CiscoSystems

Page25of52

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CiscocablescarrythepartnumberAIR‐CAB(AironetCable)andthenalength.Forexample,a20’length

ofLLcablewithRP‐TNCconnectorisCiscoAIR‐CAB‐020LL‐R.TheseheavyblackcablesarenotPlenum

ratedandareprimarilyforuseoutdoorsorinmanufacturingareas.

AccessPointSpacingRecommendations

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IfyouhaveaWi‐FidevicesuchasanAPandwanttouseanotherAPinthevicinityonadifferent

channel,spacetheAPsapproximatelysixfeet(twometers)apart.Thisrecommendeddistanceisbased

ontheassumptionthatbothdevicesoperateintheunlicensedbandand

donottransmitRFenergy

morethan23dB‐thatis,200mW.Ifhigherpowerisused,spacefartherapart.AvoidclusteringtheAPs

ortheantennasfromdifferentAPstogether,sincethiscoulddegradeperformance.

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Ifyouhaveotherdevicesthattransmit,moveorseparatethedevicesas

farapartasreasonable.(Thisis

especially important if  they operate in the same frequency ranges; for example, frequency hopping

legacyAPsorotherdevicesmayoperatejustbeloworabovethe2.4and5GHzband.)Then,checkfor

interference. Test both types of devices at the same time under

 heavy utilization (load), then

characterizeeachsystemindependentlytoseewhetherdegradationexists.

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Warning: In order to comply with FCC, EU, and EFTA RF exposure limits, antennas should be

located at a minimum of 7.9 inches (20 cm) or more from the body of all persons. See the

installationguide

underDeclarationofConformityformoreinformation.

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IDFClosets(TelecommunicationsorOtherElectricalEquipment)

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WheninstallingAPsnearotherelectricalortelecommunicationsequipment,keepallwiringandmetal

awayfromtheantennas,andavoidplacingtheantennasnearelectricallines.Donotrouteelectrical

wiringorEthernetinthenearfield(6‐15inches)oftheantenna,andtrynottoinstalltheAP

inan

electricalcloset.Ifyouremoteantennacablesfromsuch acloset,youmayberequiredtousePlenum

ratedcable,sorefertolocalfireandsafetyregulations.RememberthatthebestplacefortheAPisas

closetotheusersaspractical.

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Formoreinformationon

interference,seetheseURLs:



 http://www.cisco.com/en/US/prod/collateral/wireless/ps9391/ps9393/ps9394/prod_white_pa

per0900aecd807395a9_ns736_Networking_Solutions_White_Paper.html

 http://www.cisco.com/warp/public/cc/pd/witc/ao1200ap/prodlit/wrlan_wp.pdf

 http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps10981/white_paper_c11‐

609300.html

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VeryHighAltitudes

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While not defined in the specificatio n  sheet for the AP 2600 and the AP 3600, these APs passed

functionalchecksafteranon‐operationalaltitudetestof25C@15,000Ftwasperformed.Additionally,

theyfullypassedafunctionaltestduringanoperationalaltitudetestof40C@9,843ft.

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AllunitsinthetestgroupwereconnectedtoatleastoneWLANclientandweremonitoredforcontinual

operationpassingtraffic,withconstant pingtestingthroughouttheoperationalaltitude test . 

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Cisco Systems 1600 Network Router User Manual