Ericsson F5521gw Instruction Manual

1/8
F5521gw Module Installation and Collocation Guidelines
for Lenovo Portable Host Devices
Document Number : UY610-03-0066-00 Rev.1
January 20, 2011
FCC ID: VV7-MBMF5521GW1
IC: 287AG-MBMF5521GW1
Model: F5521gwTM
ERICSSON AB
Lindholmspiren 11
Gothenburg SE-417 56
Sweden
Revision Histry
Revision Number Date Description
1 01/ 20/ 2011 Initial release

2/8
- Index -
1INTRODUCTION ........................................................................................................................ 3
2HOSTINSTALLATIONGUIDELINES ..................................................................................................... 4
2.1 Label Requirements............................................................................................................................................ 4
2.2 Portable Hosts (WLAN antenna to user separation distance <20cm).................................................................4
2.3 End User Installation .......................................................................................................................................... 4
3COLLOCATEDINSTALLATIONGUIDELINES.......................................................................................... 5
4DOCUMENTATIONREQUIREMENTS .................................................................................................. 6
5INDIVIDUAL WLAN SAR EVALUATION ................................................................................ 7
6SIMULTANEOUS RF EXPOSURE EVALUATION GUIDELINES FOR COLLOCATED
TRANSMITTERS................................................................................................................................. 8
6.1 Portable Hosts: Sum of Total SAR < SAR Limit................................................................................................ 8
6.2 Portable Hosts Max Collocated SAR vs. Distance ............................................................................................. 8

3/8
F5521gw Module Installation and Collocation Guidelines
for Lenovo Portable Host Devices
1Introduction

ThisdocumentprovidesmoduleandantennainstallationandcollocationguidelinesforLenovo
tabletcomputermodelTP00019AtobeauthorizedforusewiththeF5521gwTMmodulein
accordancewiththeSupplementNotetoFCCKDB616217.
ThefollowinginstallationsforPortablehostconfigurationsareaddressedinthisdocument.
1) TheF5521gwTMmodulecanbeinstalledasastandalonetransmitterinaPortable
notebook/netbookorTablet(hereaftercalledPortablenotebook)meetingthefollowing
conditions:
PortablenotebooksthatmeetthetechnicalparametersaredefinedinSection2and
Section3.TheseparametersdefinethePortablenotebookconfigurationusedasthe
baselinehosttoevaluateSAR.Alternatively,amoreconservativehostapproved
throughaClassIIPermissivechangecanalsobereferencedastheconservative
baselinewherenewPortablenotebookswithgreaterantennaseparationdistanceor
lowerSARcanbeincluded.

2) AllowthehostdevicecollocatedtransmissionwiththeF5521gwTMmoduleapproved
underFCCID:VV7‐MBMF5521GW1.Thecollocatedtransmittersmustmeetthetechnical
requirementsdefinedinSection3.

3) Allowend‐userinstallationprovidedmodule/notebookTwo‐WayAuthenticationhasbeen
addressedsothatmodulescanonlybeactivatedinapprovednotebooks.
Otherconfigurationsnotspecificallydescribedinthisdocumentmaybeauthorizedthrough
coordinationwithEricssonABtoverifythatalltechnicalrequirementsdefinedinSupplementNote
toFCCKDB616217orotherrelevantFCCspecificationsareadequatelyaddressed.
TheinstallationandcollocationguidelinesareapplicableonlyforTabletcomputerswhereWWAN
andcollocatedantennasarelocatedinthekeyboardsectionordisplayportionofaTablet
computerwhereSARevaluationiscompletedwiththeproperantennaseparationdistancetothe
keyboardordisplayantennaasdefinedinKDB616217andSection4ofKDB447498.

Anycollocatedtransmitterorantennathatdoesnotmeetthetechnicalrequirementsdefinedin
thisdocumentrequiresaClassIIpermissivechangetoauthorizesimultaneoustransmission.

4/8
2HostInstallationGuidelines

ThissectiondefineshostinstallationlimitationsforPortablenotebooks.  SupportingRFexposure
informationislocatedinSection4.


2.1 LabelRequirements
TheFCCandIndustryCanadaIDsmustbepermanentlyaffixedontheexteriorofthePortable
notebookorreadilyaccessibleunderapanelorbatterypackofthehostdevicethatcannotbe
separatedfromthehostdeviceitself.

2.2 PortableHosts(WLANantennatouserseparationdistance<20cm)
TheF5521gwmodulecanbeinstalledforuseinanyauthenticatedPortablenotebookdevicewith
theWLANantennalimitationsdefinedinTable1inSection3.

2.3 EndUserInstallation
Two‐wayauthenticationdocumentationmustbesubmittedaspartofaClassIIpermissivechange
allowingend‐userinstallationintoPortablenotebooksthatutilizethemethodofauthentication.

5/8
3CollocatedInstallationGuidelines

CollocatedtransmitterscanbeoperatedsimultaneouslywiththeF5521gwmodule,providedthe
technicalparameterslistedinTable1aremaintainedandtheinformationspecifiedinSection4is
onfile.AClassIIpermissivechangeisrequiredifthehostdevicedoesnotmeettherequirements
specifiedinTable1andinsection6.

Table1HostDeviceLimitations
ParameterRequirementRFExposureJustification
Co‐locationGuide
sanctioninthisdocument
DevicetypeTablet 
DisplaysizeAny
WWANAntenna
locationsDisplay
Tabletdisplay
orientation
SecondaryLandscape
orientationisdisabled.
ExteriorDisplayMaterialAny
WWANmodulelocationAnywhere
MaximumWWANSAR1.180mW/g(1g)SupplementtoKDB616217
D03Section4Section5
MinimumWWANto
UserDistance15mm SupplementtoKDB616217 D03Section4Section5
MinimumPortable
CollocatedTransmitter
SAR
0.420mW/g(1gram)
SupplementtoKDB616217
D03Section4
KDB447498D01Section3
Section6.1
CollocatedBluetooth
Transmitter
zP≤60/f(GHz)
zAntenna‐to‐antennaor
antenna‐to‐person
distance≥5cm
KDB616217D01Table‐2
KDB447498D01Section3

DistancetoexternalUSB
ports>5cmSupplementtoKDB616217 D03Section2

Otherdevicesmaybeapprovedascollocatedtransmitters,providedthetechnicalrequirementsofKDB
616217aresatisfied.

6/8
4DocumentationRequirements
Thefollowingdocumentationmustbekeptonfiletoallowsimultaneoustransmission.AClassII
permissivechangeisrequiredifthetechnicalrequirementsofKDB616217cannotbemet.
•ListofallcollocatedtransmitterswithFCCandICIDs
•VerificationthatallWWANandWLANantennasare>5cmfromexternalUSB,PCMCIAor
othernotebookI/Oportsthatsupportanexternalplug‐intransmitter.
•Drawingsshowingantennalocationsandseparationdistances
•Antennatypeswithrespectivedimensionsandfarfieldantennagains
•SpecificmoduletoantennaRFcoaxialcablelosses
•RFexposureanalysesdemonstratingcompliancewithSection4)ofKDB616217asshown
below


7/8
5IndividualWLANSAREvaluation
PortableRFexposureevaluationhasbeencompletedbasedonSARmeasurementsonthePortable
notebookcomputer(LenovoModel:TP00019A)thatprovided1.5cmofseparationdistance
betweentheWWANantennaandtheenduserasillustratedinFigure1.Themeasured1‐gSAR
fortheWWANconfigurationwas1.180mW/g(1g)asreportedintheClassIIPermissiveChange
application.

NewPortablenotebookswithgreaterantennaseparationdistanceorlowerSARarecovered
underthisC2PCfiling.
Figure 1 Antenna Locations





23.6mm
SAR
p
robe
Tx Rx
WWANWWAN 15mm
WWAN Tx
WWAN Rx
SAR
p
robe
Secondary Landscape mode
Secondary Portrait mode
Tablet Lap held mode
WWAN transmission is not supported at Secondary
Landscape screen mode.

8/8
6SimultaneousRFExposureEvaluationGuidelinesFor
CollocatedTransmitters
6.1 PortableHosts:SumofTotalSAR<SARLimit
AportablecollocatedtransmittercanbeoperatedsimultaneouslywiththeF5521gwTMWWAN
transmitterprovidedtheindividualSARresultsfortheportablecollocatedtransmitterarelessthan
thevaluespecifiedbelowbasedonSection4)a)oftheSupplementtoKDB616217.The
maximumindividualSARvalueiscalculatedbasedontheWWAN1‐gSARof1.180mW/g.
SARWWAN SARcollocated
1.6 1.6
SARcollocated < 1.6 - SARWWAN
SARcollocated < 1.6 – 1.180
SARcollocated < 0.420 mW/g
6.2 PortableHostsMaxCollocatedSARvs.Distance
IfthesummationofSARexceedstheFCClimit,collocationispermittedprovidedtheminimum
allowableseparationdistancederivedfromtheequationbelowissatisfied.Analternate
equationprovidesthemaximumcollocatedSARbasedonaspecifiedseparationdistanceas
definedinsection4.b)ii)oftheSupplementalnoteofKDB616217.
SAR
WWAN SARcollocated
1.6 1.6
antenna-to-antenna distance
5
+ <
1
5 x (+ )
1
.
5
< antenna-to-antenna distance (cm)
SARcollocated = 1.6 x ()
2/3
- SARWWAN