Sierra Wireless MC8775 Multi-Mode & Multi-Band Wireless Network MiniCard User Manual FCC submission HW Integration Guide

Sierra Wireless Inc. Multi-Mode & Multi-Band Wireless Network MiniCard FCC submission HW Integration Guide

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2130114Rev 1.3MC5720, MC5725, MC8755, MC8765, MC8775 MiniCardHardware Integration Guide Proprietary and Confidential

PrefaceRev 1.3 Jul.06 1Limitation of LiabilityTheinformationinthismanualissubjecttochangewithoutnoticeanddoesnotrepresentacommitmentonthepartofSierraWireless.SIERRAWIRELESSANDITSAFFILIATESSPECIFICALLYDISCLAIMLIABILITYFORANYANDALLDIRECT,INDIRECT,SPECIAL,GENERAL,INCIDENTAL,CONSEQUENTIAL,PUNITIVEOREXEMPLARYDAMAGESINCLUDING,BUTNOTLIMITEDTO,LOSSOFPROFITSORREVENUEORANTICIPATEDPROFITSORREVENUEARISINGOUTOFTHEUSEORINABILITYTOUSEANYSIERRAWIRELESSPRODUCT,EVENIFSIERRAWIRELESSAND/ORITSAFFILIATESHASBEENADVISEDOFTHEPOSSIBILITYOFSUCHDAMAGESORTHEYAREFORESEEABLEORFORCLAIMSBYANYTHIRDPARTY.Notwithstandingtheforegoing,innoeventshallSierraWirelessand/oritsaffiliatesaggregateliabilityarisingunderorinconnectionwiththeSierraWirelessproduct,regardlessofthenumberofevents,occurrences,orclaimsgivingrisetoliability,beinexcessofthepricepaidbythepurchaserfortheSierraWirelessproduct.Patents PortionsofthisproductmaybecoveredbysomeorallofthefollowingUSpatents:5,515,013 5,629,960 5,845,216 5,847,553 5,878,2345,890,057 5,929,815 6,169,884 6,191,741 6,199,1686,339,405 6,359,591 6,400,336 6,516,204 6,561,8516,643,501 6,653,979 6,697,030 6,785,830 6,845,2496,847,830 6,876,697 6,879,585 6,886,049 6,968,1716,985,757 7,023,878 D442,170 D459,303andotherpatentspending.Thisproductincludes technologylicensedfrom:LicensedbyQUALCOMMIncorporatedunderoneormoreofthefollowingUnitedStatespatentsand/ortheircounterpartsinothernations:4,901,307 5,056,109 5,101,501 5,109,390 5,228,0545,267,261 5,267,262 5,337,338 5,414,796 5,416,7975,490,165 5,504,773 5,506,865 5,511,073 5,535,2395,544,196 5,568,483 5,600,754 5,657,420 5,659,5695,710,784 5,778,338ManufacturedorsoldbySierraWirelessoritslicenseesunderoneormorepatentslicensedfromInterDigitalGroup.Copyright ©2006SierraWireless.Allrightsreserved.

Rev 1.3 Jul.06 3Table of ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5The Universal Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Required connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Guide organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Related documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Power Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Overview of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Power signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Electrostatic discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Module power states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Disconnected state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Off state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Normal state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Low power mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Usage models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11RF Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13RF connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Ground connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Antenna and cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Interference and sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Power supply noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Interference from other wireless devices . . . . . . . . . . . . . . . . . . . . . . . . . . 16Device-generated RF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

MC5720/5725/8755/8765/8775 Hardware Integration Guide42130114Host/Module Communication Interface . . . . . . . . . . . . . . . . . . . . . 19LED output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Important notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Safety and hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Important compliance information for North American users . . . . . . . . . . . 22Acronyms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Index 27

1Rev 1.3 Jul.06 51: IntroductionSierraWireless’MiniCardmodulesformtheradiocomponentfortheproductsinwhichtheyareembedded.MiniCardsareavailableforuseonCDMAandGSMnetworks,including:•MC5720andMC5725—operatesonCDMAnetworksusingtheIS‐95AandCDMA1X,and1xEV‐DO(IS‐866)networkstandards•MC8755,MC8765,andMC8775—operatesonGSMnetworksusingtheGSM/GPRS/EDGE/UMTS/HSDPAnetworkstandardsPurpose of this guideThisguideaddressesissuesthataffecttheintegrationofSierraWirelessmodulesintohostproducts,andincludesdesignrecommendationsforthehostproducts.Note: An understanding of network technology and experience in integrating hardware components into electronic equipment is assumed.The Universal Development KitSierraWirelessmanufacturesaUniversalDevelopmentKit(UDK)thatfacilitatesallphasesoftheintegrationprocess.ThiskitisahardwaredevelopmentplatformthatisdesignedtosupportmultiplemembersoftheWirelessEmbeddedModuleproductfamily.Itcontainsthehardwarecomponentsthataretypicallynecessaryforevaluatinganddevelopingwiththemodule,including:•Developmentboard•Cables•Antennas•Otheraccessories

MC5720/5725/8755/8765/8775 Hardware Integration Guide62130114Required connectorsNote: Contact vendors before choosing your connectors — the numbers included here are for reference only. Choose connectors that are appropriate to your design.Whenintegratingthesemodulesintoyourhostdevice,youneedthefollowingconnectortypes:•RFcablethatmateswithHiroseU.FLconnector(modelU.FL#CL331‐0471‐0‐10)•Industry‐standardmatingconnectorfor52‐pinEDGE:SomemanufacturersincludeTyco,Foxconn,andMolex.Forexample,theconnectorusedontheMC5720/MC5725/MC8755/MC8765/MC8775UniversalDevelopmentKitboardisaMolex67910‐0001.•Industry‐standardUSIM/RUIMconnector:TheactualconnectoryouusedependsonhowyourdeviceexposestheUSIM/RUIMsocket.Forexample,theUSIM/RUIMconnectorusedontheMC5720/MC5725/MC8755/MC8765/MC8775UniversalDevelopmentKitisanITTCCM03‐3518.Guide organizationThisguideincludesthefollowingsections:1. Introduction(thissection)2. Power Interface(p.9) Describespowercontrolsignalsusedbythemoduleanddiscussesdesignissuesrelatedtopowersupplyintegration.3. RF Integration(p.13) Describesantennaconnectionmethodsandgroundingissues,RFinterferenceanddesenseissues.4. Host/Module Communication Interface(p.19) DescribestheUSBinterfaceforhost/modulecommunication,andtheUSIM/RUIMinterfaceforhost/moduleintegration.5. Acronyms and Definitions(p.25) Listsacronymsanddefinitionsusedthroughoutthisguide.6. Regulatory Information(p.21) Describesregulatoryapprovalsandregulatoryinformationrequirements.Note: The term "host" always refers to the host device.Related documentsThisguidedealsspecificallywithhardwareintegrationissuesthatareuniquetotheMC5720/5725andMC8755/8765/8775modules.

IntroductionRev 1.3 Jul.06 7Table1‐1listsotherdocumentsreferencedinthisguide.Table 1-1: Related documentation Document title DescriptionAT Command Set for User Equipment (UE) (Release 6) This 3GPP technical specification describes standard AT commands for GSM/UMTS devices.The document (3GPP TS 27.007) can be downloaded from www.3gpp.org.CDMA 1X Standard This standard describes the technical requirements for CDMA systems, including details on sleep cycle index (SCI) values.The document, CDMA 2000 Series Release A (2000) (document # TIA/EIA/IS-2000 Series, Release A) can be ordered from www.tiaonline.org.EM5625/MC5720 CnS Reference (Document 2130643)This document describes the CnS (Control and Status) messages that are available for use with the MC5720 and the MC5725.EMXXXX Embedded Modem Extended AT Command Reference (Document 2130395)This document describes proprietary AT commands for the MC5720. For MC8755/MC8765/MC8775-specific commands, see MC87xx Modem Extended AT Command Reference (Document 2130616)FCC Regulations - Part 15 - Radio Frequency Devices This section of the FCC Code of Federal Regulations, Title 47 deals with radio frequency devices, including EM shielding requirements.The regulation can be downloaded from http://wireless.fcc.gov.IEC-61000-4-2 level 3 This document describes techniques for testing and measuring electrostatic discharge (ESD) immunity.The document can be ordered from www.iec.ch.MC5720 MiniCard Product Specification (Document 2130599) This document describes the mechanical and electrical specifications, and standards compliance of the MC5720.MC5725 MiniCard Product Specification (Document 2130TBD) This document describes the mechanical and electrical specifications, and standards compliance of the MC5725.MC8755/8765 PCI Express MiniCard Product Specification (Document 2130637)This document describes the mechanical and electrical specifications, and standards compliance of the MC8755/MC8765.MC8775 PCI Express MiniCard Product Specification (Document 2130697)This document describes the mechanical and electrical specifications, and standards compliance of the MC8775.

MC5720/5725/8755/8765/8775 Hardware Integration Guide82130114MC87xx Modem CnS Reference (Document 2130602) This document describes the CnS (Control and Status) messages that are available for use with the MC8755/MC8765/MC8775.MC87xx Modem Extended AT Command Reference (Document 2130616)This document describes proprietary AT commands for the MC8755/MC8765/MC8775. For MC5720-specific commands, see the EMXXXX Embedded Modem Extended AT Command Reference (Document 2130395)Mobile Station (MS) Conformance Specification; Part 4: Subscriber Interface ModuleThis 3GPP technical specification describes SIM testing methods.The document (3GPP TS 11.10-4) can be downloaded from www.3gpp.org.PCI Express Mini Card Electromechanical Specification Revision 1.1The document can be downloaded from www.pcisig.com.Universal Serial Bus Specification, Rev 2.0 The specification can be downloaded from www.usb.org.Table 1-1: Related documentation (Continued)Document title Description

2Rev 1.3 Jul.06 92: Power InterfaceOverview of operationNote: This chapter contains information for both the CDMA (MC5720/5725) and GSM (MC8755/8765/8775) modules. Information that is unique to one module type is clearly identified.Themoduleisdesignedtousea3.3V(nominal)powersupply,providedbythehost.Itisthehost’sresponsibilitytoprovidesafeandcontinuouspowertothemoduleatalltimes;themoduledoesNOThaveanindependentpowersupply,orprotectioncircuitstoguardagainstelectricalissues.Themodule’spowerstateiscontrolledbythehost’sassertion/de‐assertionoftheW_Disable#signal.Themodulealsomonitorsitssupplyvoltageandrequestsshutdownifthesupplyisinsufficient.Power signalsThemodulemustbeconnectedtoa3.3Vpowersupply(asindicatedinPCIExpressMiniCardElectromechanicalSpecifi‐cationRevision1.1).TheMC8755/8765/8775hasmorepowerpinsthantheMC5720/5725duetohigherpeakcurrentrequirementsforGSMdevices.Fordetailedpinoutandvoltage/currentrequirementsofthesemodules,seetheProductSpecificationdocumentforyourMiniCard.Electrostatic discharge (ESD)YouareresponsibleforensuringthatthehosthasadequateESDprotectionondigitalcircuitsandantennaports:•(Operational)RFport(antennalaunchandRFconnector):IEC‐61000‐4‐2—Level(ElectrostaticDischargeImmunityTest)•(Non‐operational)Hostconnectorinterface:JESD22‐A114‐B+/‐1kVHumanBodyModelandJESD22‐C101+/‐125VChargedDeviceModelSpecificrecommendationsareprovidedwhereneededinthisguide,however,thelevelofprotectionrequireddependsonyourapplication.

MC5720/5725/8755/8765/8775 Hardware Integration Guide10 2130114Note: ESD protection is highly recommended for the SIM connector at the point where the contacts are exposed, and any other signals from the host interface that would be subjected to ESD by the user of the end product.Module power statesNote: The module unit defaults to the Normal state when VCC3.3 is first applied in the absence of W_Disable# control.Atanytime,themodulewillbeinoneoffourpowerstates:•Disconnected Nopowertothemodule.•Off Powertothemodule,butthemoduleispoweredoff.•Normal Themoduleisactive.Severalmodesarepossible(Receive,Transmit,Sleep,Shutdown).•Low power (“airplane mode”) Themoduleisactive,butRFisdisabled.Statemachinesareimplementedinthemoduletomonitorthepowersupplyandoperatingtemperature.Disconnected stateNote: The difference between the Disconnected and Off states is that in the Off state, the module is still connected to the power source and draws minimal current.Thisstateoccurswhenthereisnopowertothemodule—thehostpowersourceisdisconnectedfromthemoduleandallvoltagesassociatedwiththemoduleareat0V.Whetherthehostdeviceisalsopoweredoffdependsonthepowerraildesign.Iftheconnectionbetweenthepowerrailandthemoduleiscontrolledbythehost,thehostcanstaypoweredonandcutthepowertoputthemodemintothedisconnectedstate.Ifthepowerrailissharedbetweenthehostdeviceandthemodule,thehostispoweredoffwhenthemoduleispoweredoff.Off stateInthisstate,thehostispoweredupandthemoduleispowereddown(butstillconnectedtothepowersource).Thehostkeepsthemodulepoweredoffbyasserting(drivinglow)theW_Disable#signal.Inthisstate,themoduledrawsminimalcurrent.

Power InterfaceRev 1.3 Jul.06 11Normal stateNote: This is the default state when VCC3.3 is first applied in the absence of W_Disable# control.Thisistheactivestateofthemodule.Whileinthisstate:•Themoduleisfullypowered.•Themoduleiscapableofplacing/receivingcallsorestab‐lishingdataconnectionsonthewirelessnetwork.•TheUSBinterfaceisfullyactive.Low power modeInthispowerstate,RF(bothRxandTx)isdisabledinthemodule,buttheUSBinterfaceisstillactive.Thislowpowermode(ʺairplanemodeʺ)iscontrolledbyasoftwarecommandthroughthehostinterface.Forinstructionsonusingappropriatecommands,refertoATCommandSetforUserEquipment(UE)(Release6)(+CFUN=0command),EM5625/MC5720CnSReference(Document2130643)(CNS_RADIO_POWER[0x1075]),orMC87xxModemCnSReference(Document2130602)(DisableModem).Usage modelsUsagemodelscanbeusedtocalculateexpectedcurrentconsumption.AsampleusagemodelisprovidedinTable2‐1Table 2-1: Power consumption of a sample applicationUsed by a field worker (data only) Used for remote data loggingUpload (module Tx) 1000 kB/day 40 kB/hDownload (module Rx) 500 kB/day 100 kB/dayCoverage / data rate 1X / 80 kbps IS-95 / 14.4 kbpsHours of operation 8 / day (off 16 hrs/day) 24 / dayTotal power consumed over 24 hours60 mAh 200 mAh

MC5720/5725/8755/8765/8775 Hardware Integration Guide12 2130114Thisexamplemodelappliestoabattery‐operateddevice.Inpractice,becausethemodulewillbeisolatedfromthebattery(thehostdevicemanagesthepowersource),themAhratingswilldependonthedevice’ssupplyefficiency.Themoduleautomaticallyentersslottedsleepmodewhenthereisnotransmissionorreceptionoccurring(SCI=2).Transmitpowerisassumedtobe+3dBm.

3Rev 1.3 Jul.06 133: RF IntegrationTheMC8755/8765/8775operatesonthefrequenciesdetailedinTable3‐1.RF connectionConsiderthefollowingwhenattachinganantennatothemodule:Note: To disconnect the antenna, make sure you use the Hirose U.FL connector removal tool (P/N UFL-LP-N-2(01) to prevent damage to the module or coaxial cable assembly.•UseaHiroseU.FLconnector(modelU.FL#CL331‐0471‐0‐10)toattachanantennatoaconnectionpointonthemodule,asshowninFigure3‐1(ThemainRFconnectoronthetopside;thediversityRFconnectoronthebottomside).•Matchcoaxialconnectionsbetweenthemoduleandtheantennato50Ω.•MinimizeRFcablelossestotheantenna;therecommendedmaximumcablelossforantennacablingis0.5dB.Table 3-1: MC8755/8765/8775 — Supported frequenciesProduct Band Frequencies (MHz)MC8755 /MC8765 /MC8775GSM 850 Tx: 824–849 Rx: 869-894EGSM 900 Tx: 880-915 Rx: 925-960DCS 1800 Tx: 1710-1785 Rx: 1805-1880PCS 1900 Tx: 1850-1910 Rx: 1930-1990MC8755 /MC8775 Band I UMTS 2100 Tx: 1920–1980 Rx: 2110–2170MC8765 /MC8775 Band II UMTS 1900 Tx: 1850–1910 Rx: 1930–1990Band V UMTS 850 Tx: 824–849 Rx: 869–894

MC5720/5725/8755/8765/8775 Hardware Integration Guide14 2130114Figure 3-1: Antenna connection points and mountingGround connectionWhenconnectingthemoduletosystemground:•Preventnoiseleakagebyestablishingaverygoodgroundconnectiontothemodulethroughthehostconnector.•Connecttosystemgroundusingthetwomountingholesatthetopofthemodule(asshowninFigure3‐1).•MinimizegroundnoiseleakageintotheRF. Dependingonthehostboarddesign,noisecouldpotentiallybecoupledtothemodulefromthehostboard.Thisismainlyanissueforhostdesignsthathavesignalstravelingalongthelengthofthemodule,orcircuitryoperatingatbothendsofthemoduleinterconnects.

RF IntegrationRev 1.3 Jul.06 15ShieldingThemoduleisfullyshieldedtoprotectagainstEMIandtoensurecompliancewithFCCPart15‐“RadioFrequencyDevices”(orequivalentregulationsinotherjurisdictions).Note: The module shields must NOT be removed.Antenna and cablingWhenselectingtheantennaandcable,itiscriticaltoRFperfor‐mancetomatchantennagainandcableloss.Choosing the correct antenna and cablingConsiderthefollowingpointsforpropermatchingofantennasandcabling:•Theantenna(andassociatedcircuitry)shouldhaveanominalimpedanceof50Ωwithareturnloss≤ 10dBacrosseachfrequencybandofoperation.•Thesystemgainvalueaffectsbothradiatedpowerandregulatory(FCC,IC,CE,etc.)testresults.Developing custom antennasConsiderthefollowingpointswhendevelopingcustom‐designedantennas:•AskilledRFengineershoulddothedevelopmenttoensurethattheRFperformanceismaintained.•Identifythebandsthatneedtobesupported,particularlywhenboththeMC5720/5725andMC8755/8765/8775willbeinstalledinthesameplatform.Inthiscase,youmaywanttodevelopseparateantennasformaximumperformance.Determining the antenna’s locationConsiderthefollowingpointswhendecidingwheretoputtheantenna:•AntennalocationmayaffectRFperformance.Althoughthemoduleisshieldedtopreventinterferenceinmostapplica‐tions,theplacementoftheantennaisstillveryimportant—ifthehostdeviceisinsufficientlyshielded,highlevelsofbroadbandorspuriousnoisecandegradethemodule’sperformance.•Connectingcablesbetweenthemoduleandtheantennamusthave50Ωimpedance.Iftheimpedanceofthemoduleismismatched,RFperformanceisreducedsignificantly.•Antennacablesshouldberouted,ifpossible,awayfromnoisesources(switchingpowersupplies,LCDassemblies,

MC5720/5725/8755/8765/8775 Hardware Integration Guide16 2130114etc.).Ifthecablesarenearthenoisesources,thenoisemaybecoupledintotheRFcableandintotheantenna.Disabling the diversity antenna (MC5720/5725)IfyourhostdeviceisnotdesignedtousetheMC5720/5725’sdiversityantenna,terminatetheinterfacewithano‐connect.Interference and sensitivityNote: These modules are based on ZIF (Zero Intermediate Frequency) technologies; when performing EMC (Electromagnetic Compatibility) tests, there are no IF (Intermediate Frequency) components from the module to consider.SeveralsourcesofinterferencecanaffecttheRFperformanceofthemodule(RFdesense).Commonsourcesincludepowersupplynoiseanddevice‐generatedRF.RFdesensecanbeaddressedthroughacombinationofmitigationtechniquesandradiatedsensitivitymeasurement.Power supply noiseNoiseinthepowersupplycanleadtonoiseintheRFsignal.Thepowersupplyripplelimitforthemoduleisnomorethan200mVp‐p1Hzto100kHz.ThislimitincludesvoltagerippleduetotransmitterburstactivityInterference from other wireless devicesDifferentwirelessdevicesoperatinginsidethehostdevicecancauseinterferencethataffectsthemodule.Todeterminethemostsuitablelocationsforeachantennaonyourhostdevice,evaluateeachwirelessdevice’sradiosystem,consideringthefollowing:•Anyharmonics,sub‐harmonics,orcross‐productsofsignalsgeneratedbywirelessdevicesthatfallinthemodule’sRxrangemaycausespuriousresponseresultingindecreasedRxperformance.•TheTxpowerandcorrespondingbroadbandnoiseofotherwirelessdevicesmayoverloadorincreasethenoisefloorofthemodule’sreceiver,resultinginRxdesense.Theseverityofthisinterferencedependsontheclosenessoftheotherantennastothemodule’santenna.Todeterminesuitablelocationsforeachwirelessdevice’santenna,thoroughlyevaluateyourhostdevice’sdesign.

RF IntegrationRev 1.3 Jul.06 17Device-generated RFNote: The module can cause interference with other devices such as hearing aids and on-board speakers. Wireless devices such as the MiniCard transmit in bursts (pulse transients), for set durations (RF burst frequencies). Hearing aids and speakers convert these burst frequencies into audible frequencies, resulting in audible noise. AllelectroniccomputingdevicesgenerateRFinterferencethatcannegativelyaffectthereceivesensitivityofthemodule(RFdesense).TheproximityofhostelectronicstotheantennainwirelessdevicescancontributetoRFdesense.ComponentsthataremostlikelytocauseRFdesenseinclude:•Microprocessorandmemory•Displaypanelanddisplaydrivers•Switching‐modepowersuppliesThese,andotherhigh‐speeddevices(inparticular,theprocessor)cancauseRFdesensebecausetheyrunatfrequenciesoftensofMHz.Therapidriseandfalloftheseclocksignalsgenerateshigher‐orderharmonicsthatoftenfallwithintheoperatingfrequencybandofthemodule,causingRFdesense.ExampleOnasub‐systemrunningat40MHz,the22ndharmonicfallsat880MHz,whichiswithinthecellularreceivefrequencyband.Note: In practice, there are usually numerous interfering frequencies and harmonics. The net effect can be a series of desensitized receive channels.

MC5720/5725/8755/8765/8775 Hardware Integration Guide18 2130114

4Rev 1.3 Jul.06 194: Host/Module Communication InterfaceThischapterprovidesinformationabouttheHost‐Modulecommunicationinterface(USBinterface)andlistsofextendedATcommandsthatmaybeusefulforhardwareintegrationtesting.Note: On any given interface (USB, USIM/RUIM, etc.), leave unused inputs and outputs as no-connects.LED outputThemoduledrivestheLEDoutputaccordingtothePCI‐ExpressMiniCardspecification(summarizedinTable4‐1,below).Table 4-1: LED StatesState Indicates CharacteristicsOFF Module is not powered. Light is turned off.ON Module is powered and connected, but not transmitting or receiving.Light is turned on.Slow Blink Module is powered and searching for a connection.LED is flashing at a steady, slow rate.•250 ms ± 25% ON period•0.2 Hz ± 25% blink rateIntermittent Blink Module is transmitting or receiving. LED is flashing intermittently, proportional to activity on the interface.•50% duty cycle•3 Hz minimum blink rate•20 Hz maximum blink rate

MC5720/5725/8755/8765/8775 Hardware Integration Guide20 2130114Figure 4-1: Example LEDCurrent limiting ResistorLEDVCC 3.3VMIOMiniCard

5Rev 1.3 Jul.06 215: Regulatory InformationImportant noticeBecauseofthenatureofwirelesscommunications,trans‐missionandreceptionofdatacanneverbeguaranteed.Datamaybedelayed,corrupted(i.e.,haveerrors)orbetotallylost.AlthoughsignificantdelaysorlossesofdataarerarewhenwirelessdevicessuchastheSierraWirelessmodemareusedinanormalmannerwithawell‐constructednetwork,theSierraWirelessmodemshouldnotbeusedinsituationswherefailuretotransmitorreceivedatacouldresultindamageofanykindtotheuseroranyotherparty,includingbutnotlimitedtopersonalinjury,death,orlossofproperty.SierraWirelessanditsaffiliatesacceptnoresponsibilityfordamagesofanykindresultingfromdelaysorerrorsindatatransmittedorreceivedusingtheSierraWirelessmodem,orforfailureoftheSierraWirelessmodemtotransmitorreceivesuchdata.Safety and hazardsDonotoperateyourMC5720/MC5725/MC8755/MC8765/MC8775modem:•Inareaswhereblastingisinprogress•Whereexplosiveatmospheresmaybepresentincludingrefuellingpoints,fueldepots,andchemicalplants•Nearmedicalequipment•Nearlifesupportequipment,oranyequipmentwhichmaybesusceptibletoanyformofradiointerference.Insuchareas,theMC5720/MC5725/MC8755/MC8765/MC8775modemMUSTBEPOWEREDOFF.Otherwise,theMC5720/MC5725/MC8755/MC8765/MC8775modemcantransmitsignalsthatcouldinterferewiththisequipment.Inanaircraft,theMC5720/MC5725/MC8755/MC8765/MC8775modemMUSTBEPOWEREDOFF.Otherwise,theMC5720/MC5725/MC8755/MC8765/MC8775modemcantransmitsignalsthatcouldinterferewithvariousonboardsystemsandmaybedangeroustotheoperationoftheaircraftordisruptthecellularnetwork.Useofacellularphoneinanaircraftisillegalinsomejurisdictions.Failuretoobservethisinstructionmayleadtosuspensionordenialofcellulartelephoneservicestotheoffender,orlegalactionorboth.

MC5720/5725/8755/8765/8775 Hardware Integration Guide22 2130114Someairlinesmaypermittheuseofcellularphoneswhiletheaircraftisonthegroundandthedoorisopen.TheMC5720/MC5725/MC8755/MC8765/MC8775modemmaybeusednormallyatthistime.Important compliance information for North American usersTheMC5720/MC5725/MC8755/MC8765/MC8775modemhasbeengrantedmodularapprovalformobileapplications.IntegratorsmayusetheMC5720/MC5725/MC8755/MC8765/MC8775modemintheirfinalproductswithoutadditionalFCC/IC(IndustryCanada)certificationiftheymeetthefollowingconditions.Otherwise,additionalFCC/ICapprovalsmustbeobtained.1. Atleast20cmseparationdistancebetweentheantennaandtheuser’sbodymustbemaintainedatalltimes.2. TocomplywithFCC/ICregulationslimitingbothmaximumRFoutputpowerandhumanexposuretoRFradiation,themaximumantennagainincludingcablelossinamobile‐onlyexposureconditionmustnotexceed:·8dBiintheCellularbandand4dBiinthePCSbandfortheMC8755/MC8765/MC8775·4.65dBiintheCellularbandand3.35dBiinthePCSbandfortheMC5720/MC57253. TheMC5720/MC5725/MC8755/MC8765/MC8775modemanditsantennamustnotbeco‐locatedoroperatinginconjunctionwithanyothertransmitterorantennawithinahostdevice.4. AlabelmustbeaffixedtotheoutsideoftheendproductintowhichtheMC5720/MC5725/MC8755/MC8765/MC8775modemisincorporated,withastatementsimilartothefollowing:·ForMC5720: ThisdevicecontainsTXFCCID:N7N‐MC5720 ThisequipmentcontainsequipmentcertifiedunderIC:2417C‐MC5720·ForMC5725: ThisdevicecontainsTXFCCID:N7N‐MC5725 ThisequipmentcontainsequipmentcertifiedunderIC:2417C‐MC5725·ForMC8755: ThisdevicecontainsTXFCCID:N7NMC8755 ThisequipmentcontainsequipmentcertifiedunderIC:2417C‐MC8755

Regulatory InformationRev 1.3 Jul.06 23·ForMC8765: ThisdevicecontainsTXFCCID:N7NMC8765 ThisequipmentcontainsequipmentcertifiedunderIC:2417C‐MC8765·ForMC8775: ThisdevicecontainsTXFCCID:N7NMC8775 ThisequipmentcontainsequipmentcertifiedunderIC:2417C‐MC87755. AusermanualwiththeendproductmustclearlyindicatetheoperatingrequirementsandconditionsthatmustbeobservedtoensurecompliancewithcurrentFCC/ICRFexposureguidelines.TheendproductwithanembeddedMC5720/MC5725/MC8755/MC8765/MC8775modemmayalsoneedtopasstheFCCPart15unintentionalemissiontestingrequirementsandbeproperlyauthorizedperFCCPart15.Note:Ifthismoduleisintendedforuseinaportabledevice,youareresponsibleforseparateapprovaltosatisfytheSARrequirementsofFCCPart2.1093andICRSS‐102.

MC5720/5725/8755/8765/8775 Hardware Integration Guide24 2130114

ARev 1.3 Jul.06 25A: Acronyms and Definitions.Table 5-1: Acronyms and definitionsAcronym or term DefinitionAGC Automatic Gain ControlBER Bit Error Rate - a measure of receive sensitivityBLER Block Error RateCall Box Base Station Simulator - Agilent E8285A or 8960, Rohde & Schwarz CMU200CDMA Code Division Multiple AccessdB Decibel = 10 x log10 (P1/P2) P1 is calculated power; P2 is reference powerDecibel = 20 x log10 (V1/V2) V1 is calculated voltage, V2 is reference voltagedBm Decibels, relative to 1 mW - Decibel(mW) = 10 x log10 (Pwr (mW)/1mW)DUT Device Under TestEDGE Enhanced Data rates for GSM EvolutionEM Embedded ModuleESD ElectroStatic DischargeFER Frame Error Rate - a measure of receive sensitivityGPRS General Packet Radio ServiceGPS Global Positioning SystemGSM Global System for Mobile communicationsHz Hertz = 1 cycle/secondinrush current Peak current drawn when a device is connected or powered onIS-2000 3G radio standards for voice and data (CDMA only)IS-95 2G radio standards targeted for voice (cdmaONE)LDO Low Drop Out - refers to linear regulatorMC5720 / MC5725 Sierra Wireless MiniCards used on CDMA networks

MC5720/5725/8755/8765/8775 Hardware Integration Guide26 2130114MC8755 / MC8765 / MC8775 Sierra Wireless MiniCards used on GSM networksMHz MegaHertz = 10E6 Hertz (Hertz = 1 cycle/second)MIO Module Input/OutputMPE Maximum Permissible Exposure — the level of radiation to which a person may be exposed without hazardous effect or adverse biological changesOTA Over The Air or Radiated through the antennaPCS Personal Communication System - PCS spans the 1.9 GHz radio spectrumRF Radio FrequencyRMS Root Mean SquareRUIM Removable User Identity ModuleSA Selective AvailabilitySensitivity (Audio) Measure of lowest power signal that the receiver can measureSensitivity (RF) Measure of lowest power signal at the receiver input that can provide a prescribed BER/BLER/SNR value at the receiver output.SIM Subscriber Identity ModuleSNR Signal to Noise RatioSOF Start of Frame - a USB functionUART Universal Asynchronous Receiver TransmitterUDK Universal Development KitUMTS Universal Mobile Telecommunications SystemUSB Universal Serial BusUSIM Universal Subscriber Identity ModuleVCC3.3 3.3 V supply voltageWCDMA Wideband Code Division Multiple Access — In this document, the term “UMTS” is used instead of “WCDMA”.XIM In this document, XIM is used as part of the contact identifiers for the USIM/RUIM interface (XIM_VCC, XIM_CLK, etc.). It indicates either RUIM or USIM.Table 5-1: Acronyms and definitionsAcronym or term Definition

Rev 1.3 Jul.06 27IndexAacronymsanddefinitions 25–26airplanemode 11antennaconnectionandmountingpoints 14connectionconsiderations 13custom,considerations 15diversityantenna,disabling 16limit,matchingcoaxialconnections 13location,considerations 15matching,considerations 15maximumcableloss 13ATcommands3GPPspecification,details 7extended,MC5720/5725 7extended,MC8755/8765/8775 8lowpowermode,setting 11Ccablelossantenna,maximum 13CnSMC5720reference,details 7MC8755/8765/8775reference,details 8connectiongrounding 14connectors,requiredEDGEmating(52‐pin) 6host‐module 6RF,Hirose 6USIM/RUIM 6currentconsumptionusagemodels 11DDCS1800RFparameters,MC8755/8765/8775 13defaultstate(Normal),module 11desense.SeeRFdisconnected,modulepowerstate 10diversityantennadisabling 16EEGSM900RFparameters,MC8755/8765/8775 13electrostaticdischarge.SeeESDESDprotectionrequirements 9–10testingtechniquesdocument(IEC‐61000‐4‐2) 7FFCCregulations,relevantsection 7Ggroundingconnectionconsiderations 14groundloops,avoiding 15GSM850RFparameters,MC8755/8765/8775 13HHost⁄Moduleinterface 19–20Iinterferencedevicegenerated 17powersupplynoise 16wirelessdevices 16LLEDexample 20stateintermittentblink 19off 19on 19slowblink 19lowpowermodesetting,ATcommands 11lowpower,modulepowerstate 11MMC5720CnSreference,details 7productspecification 7MC5720/5725extendedATcommands 7MC8755/8765productspecification 7MC8755/8765/8775CnSreference,details 8extendedATcommands 8RFparameters 13

MC5720/5725/8755/8765/8775 Hardware Integration Guide28 2130114MC8775productspecification 7minicardPCIExpressSpecification,details 8SeealsoMC5720⁄5725;MC8755⁄8765⁄8775modulepowerstates 10–11module,defaultpowermode(Normal) 11Nnoiseleakage,minimizing 14RFinterference,powersupply 16normal,modulepowerstate 11Ooff,modulepowerstate 10PPCIExpressminicardspecificationdetails 8PCS1900RFparameters,MC8755/8765/8775 13powerdisconnected,characteristics 10normal,characteristics 11off,characteristics 10signals,overview 9state,disconnected 10state,lowpower 11state,normal 11state,off 10states,module 10–11supply,RFinterference 16powerinterface 9–12ProductSpecificationDocument.SeePSDPSDMC5720⁄5725,details 7MC8755/8765,details 7MC8775,details 7RregulatoryinformationFCC 22limitationofliability 21safetyandhazards 21RFantennacableloss,maximum 13antennaconnection,considerations 13cabletype,required 6desensedevice‐generated 17integration 13–17interferenceotherdevices 17powersupply 16wirelessdevices 16parametersDCS1800 13EGSM900 13GSM850 13MC8755/8765/8775 13PCS1900 13UMTS1900 13UMTS2100 13UMTS850 13Sshieldingmodule,compliance 15SIM.SeeUSIM/RUIMTtestingESDimmunity,techniquesdocument(IEC‐61000‐4‐2) 7UUDK.SeeUniversalDevelopmentKitUMTS1900RFparameters,MC8755/8765/8775 13UMTS2100RFparameters,MC8755/8765/8775 13UMTS850RFparameters,MC8755/8765/8775 13UniversalDevelopmentKitcomponents,included 5UniversalSerialBus.SeeUSBusagemodelscurrentconsumption 11USBspecification,details 8USIM/RUIMconnectortype,required 6

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