Connected Holdings 2AEB4AC20 User manual

Brand: Connected Holdings

Model: 2AEB4AC20

Category: GPS receiver modules

Type: User manual

ARROW‐CUserManual

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ARROW‐CUserManual

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R1.0

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AuthorRevisionChangesDate

Changyu1.1Initialversion2016‐03‐22

 

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 

ConfidentialMaterial:Thisdocumentcontainsinformationthatisproprietaryand

confidential,readingandcopyingthisdocumentisprohibitedwithout

permission.

ARROW‐CUserManual

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Contents

1Introduction..............................................................................................................................3

IDandToolingDesign......................................................................................错误！未定义书签。

2HardwareDesign.......................................................................................................................4

2.1BasicHardware..................................................................................................................4

2.2BasicRFPerformance........................................................................................................6

2.3CertificationandSafety.....................................................................................................8

3SoftwareFeatures.....................................................................................................................9

3.1BasicSoftware...................................................................................................................9

3.2RemoteUpdate.................................................................................................................9

3.2.1AutoExecute.............................................................................................................9

3.3PowerModes....................................................................................................................9

3.4ATCommand...................................................................................................................10

3.5Report..............................................................................................................................12

3.6Reset................................................................................................................................12

3.6.1ContextPreservation...............................................................................................12

3.7StartupBanner................................................................................................................12

4TestMethod............................................................................................................................13

4.1Hardware.........................................................................................................................13

4.2SoftwareTest...................................................................................................................13

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ARROW‐CUserManual

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1 Introduction

TheARROW‐Cisaself‐containedvehicletrackingdevicethatcombinesGPSlocationwith

CDMAconnectivity.

TheArrow‐Cdeviceserieshas5productions:AR‐2CX/SR‐2CU/S4N‐2CU/S6N‐2CU/KT‐2CU

Logically,theARROW‐Cappearstoauseroraserverapplicationasasingleendpointdevice.

Itcanbequeried,updatedandconfiguredeitherthroughaserialconnection,oranoverthe

airCDMAIPconnection,orthroughSMSmessaging.TheARROW‐Cpresentsitselfoverthese

connectionsasanenhancedcellularmodemwithattachedfunctionalelements.These

elementsinclude:

GPSlocationengine　

2GeneralPurposeBidirectionalI/O(GPIO)pins　

1Relaydrivepinoutput　

SerialUARTport　

Inputvoltagemonitor　(optional)

Timers　

Watchdoglockupprotection　(Dedicatedwatchdogcircuitisoptional)

Factoryl　oadoptionformotiondetection

AccesstotheseelementsandgeneralpurposeinterfacesisdonethroughanextendedAT

commandsetasdefinedherein.

Application scene:



ThisproductwillbedesignedbasedontheVIACBP8.2CDMA1X800M&1900MBaseband

chipset,whichincludesGPSfunctionality,ARMCPUandCDMAprotocol.Thisbaseband

externalconnection256Mserialflash,CDMA800M/1900M/GPSRFTransceiver,andRF

Frontendcircuit.

Thedevicewilluseonedualbandantenna（CDMA800&CDMA1900）andonededicateGPS

antenna.



ARROW‐CUserManual

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Hardware Design

1.1 Basic Hardware

ItemsRequirement

BasebandChipsetVIACBP8.2C

RFTransceiverGRF6416

MemorySerialFlash64Mb

PSRAM128Mb

AirInterfaceCDMA20001x,GPS

FrequencyCDMA20001x:800MHz,1900MHz

AntennaInternalAntenna(800M&1900M)

GPSAntennaDedicatehighperformanceceramicantenna

UIMrequirementNo‐UIMmode,UIMcardconnectoroptional

InterfaceUARTTX

UARTRX

12VDCInput（1Acurrent）

RelayDrive(12VOutput,500mAcurrent)

GPIO1

GPIO2

BatteryMonitorinternalanaloginputscaled(Optional)

BuildinbatterymanagerSupported

DedicateTimersNo

WatchdogSupported(DedicateWatchdogisOptional)

MotionDetectOptional（GPS/Sensor）

LED2LEDSupported

2LEDs(oneisRED，oneisGreen)

BatteryBuild in battery（80MAH Lion）

WorkingTime4hours

PowerswitchNo

PowerCablecolor8 colors

PowerCableconnectortype8 pin

PowerConsumption< 5Watts

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TheARROW‐CprovidessupportforspecializedhardwarefeaturesthroughextendedAT

commands.Thefeaturessupportedincludethefollowing.

GPS

ThemajorfunctionalityoftheGPSmoduleistocomputethecorrelationresultsbetweenthe

incomingsignalandtheselectedPRNcodebasedoncertainCarrierDopplerFrequency,Code

DopplerFrequency,codephase,carrierphase,andtheparticularsatellitethemoduleis

trackingoracquiring.

GPIO

ARROW‐CUserManual

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TwoGPIOpins,GP1andGP2,arepresentedtotheexternalenvironmentonthemain

connector.Theyaregeneralpurposebidirectionallinescapableofprovidingsystem

interruptstogenerateareportordrivelogiclevelstoexternaldevices.Theselinesare2.8V

logiclevelandare15Vtolerant.Thesepinsdefaulttoinput.GP1ispulleddownrepresenting

0whendisconnected;GP2ispulleduprepresentinglogical1whendisconnected.They

shouldbeassertedtoaknownvalueifused.GP1isintendedtouseforIgnitionSensing.

LED’s

TwoLEDstatusindicatorsareprovidedtoverifycorrectinstallationandoperation.The

statusLEDsarecolorcodedanddirectlyconveythestatusoftheCDMAandGPSsubsystems

asdescribedinthetablebelow.Theirvalidoperationalsoindicatesoperationalstatusand

power.

LED Function Status

Red GPS On:GPSsatellitesacquiredand

Locked

FlashSlow:GPSsatellitesearchis

inprogress

Off:NopowerorGPSsubsystem

fault

Green CDMA/CDMAConnection On:IndicatesCDMAconnectionis

made

FlashSlow:CDMAsubsystem

initializedbutnoconnection

FlashFast:CDMAinitializationin

process

Off:NopowerorCDMA

subsystemfault

TheARROW‐CprovidesusercontrolallowingtheLEDstobeextinguishedonceinstallationis

verified.ThisfeaturereducespowerandfurtherconcealstheARROW‐CTrackerfrom

untrainedpartieswishingtodefeatitsoperation.

UART

AUARTportisprovidedforATcommandanddatainteractionandoptionallyforapplication

specificcontrol.Wheninpowerdownmode,acharactermustbesenttotheUARTfirstto

wakeitup.Theportwillstayawakefor5secondsafteranycharacterreceived.

RelayDriver

A500mAsinkcapableoutputpinisprovided.Thispinismeanttodrivearelaycoilindented

tointerruptthestartersolenoidrelayfortheignitioncircuittoacar.

BatteryMonitor

ThebatterymonitorisinternalanaloginputscaledsuchthattheDCvalueofthepowerinput

pintotheARROW‐Csystemismeasured.Thisvalueisscaledtospanthemostsignificant8

bitsoftheA/Dandconsequentlycoversascalefrom0to25.5Volts.

Timers

TimersresidentontheCDMAbasebandchipgenerateperiodicinterruptsforpowerdown

wakeup,watchdogsupport,reportgenerationandothertimerrelatedfunctions.Report

timersaresupportedbyrelatedATcommandandcausegenerationofperiodicreports.

ARROW‐CUserManual

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Watchdog

CBP8.2chipsetprovideinternalsoftwareWatchdog,andaphysicallydedicateWatchdog

circuitrequirementisoptional.

MotionDetect(Option)

Afactorypopulatesoptionformotiondetectorisprovided.Ifpopulatedatthetimethe

ARROW‐Cismanufactured,thisoptionwillworkwithfirmwarepowerdownoptionstokeep

theARROW‐Cinaverylowpowerdownstateuntilmotionisdetected.Uponwakening,a

reportcanthenbegenerated.

1.2 Basic RF Performance

ItemsRequirementsRemark

TRPfreespace>=20dBmTRPfreespace

TISfreespace<=‐104dBmTISfreespace

Antennaloss<=‐3dBTRP‐TXPowerConducted

AntennaLoss<=‐3dBRXreceivesensitivityconducted–

TIS



BoardRFSpecification

CellularBandRX

Frequencyrange869MHz～894MHz

Sensitivity‐108dBm(FER≤0.5%)

Dynamicrange‐25～‐108dBm(FER≤0.5%)

SingletoneDesensitization‐102.4dBm(FER≤1%,‐30dBm@±900KHz)

IntermediationSpurious

ResponseAttenuation

‐102.4dBm(FER≤1%,‐43dBm@±900KHz/±1700KHz)

‐91.4dBm(FER≤1%,‐32dBm@±900KHz/±1700KHz)

‐80.4dBm(FER≤1%,‐21dBm@±900KHz/±1700KHz)

ConductedSpurious

Emission

<‐76dBm/1MHz（RXband）

<‐61dBm/1MHz（TXband）

<‐47dBm/30KHz（otherfrequency）



CellularBandTX

Frequencyrange824MHz～849MHz

MaximumFrequencyerror±300KHz

Maximumoutputpower23～30dBm

Minimumcontrolledoutput

power

<‐50dBm

Standbyoutputpower<‐61dBm

Codedomainpower

Thecodedomainpowerineachinactivecodechannel

shallbe23dBormorebelowthetotaloutputpower

measuredonboththeIandQdatachannelcombined.

Timereference±1.0uS

Waveformquality>0.944

Rangeofopenloopoutput（test1：－25dBm/1.23MHz）－47.7±9.5dBm

20 ~ 24.5dBm

ARROW‐CUserManual

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

power（test2：－60dBm/1.23MHz）－7.7±9.5dBm

（test3：－93.5dBm/1.23MHz）20.3±9.5dBm

Conductedspuriousemission

‐42dBc/30Khzor‐54dBm/1.23MHz

（|Δf|:1.25MHz~1.98MHz）

‐50dBc/30Khzor‐54dBm/1.23MHz

（|Δf|:1.98MHz~4.00MHz）

<‐36dBm/1kHz

（|Δf|>4MHz,9KHz<f<150KHz,）

<‐36dBm/10kHz

（|Δf|>4MHz,150kHz<f<30MHz,）

<‐36dBm/100kHz

（|Δf|>4MHz,30MHz<f<1GHz）

<‐30dBm/1MHz

（|Δf|>4MHz,1GHz<f<12.75GHz）



PCSBandRX

Frequencyrange1930MHz~1990MHz

Sensitivity‐108dBm(FER≤0.5%)

Dynamicrange‐25~‐108dBm(FER≤0.5%)

SingletoneDesensitization‐102.4dBm(FER≤1%,‐40dBm@±1250KHz)

IntermediationSpurious

ResponseAttenuation

‐102.4dBm(FER≤1%,‐43dBm@±1250KHz/±2050KHz)

ConductedSpurious

Emission

<‐76dBm/1MHz（RXband）

<‐61dBm/1MHz（TXband）

<‐47dBm/30KHz（otherfrequency）



PCSBandTX

Frequencyrange1850MHz~1910MHz

MaximumFrequencyerror±150KHz

Maximumoutputpower23~30dBm

Minimumcontrolledoutput

power

<‐50dBm

Standbyoutputpower<‐61dBm

Codedomainpower

Thecodedomainpowerineachinactivecodechannel

shallbe23dBormorebelowthetotaloutputpower

measuredonboththeIandQdatachannelcombined.

Timereference±1.0uS

Waveformquality>0.944

Rangeofopenloopoutput

power



(test1:‐25dBm/1.23MHz)‐50.7±9.5dBm

Conductedspuriousemission(test2:‐60dBm/1.23MHz)‐10.7±9.5dBm

(test3:‐91.3dBm/1.23MHz)20.3±9.5dBm

20 ~ 24.5dBm

ARROW‐CUserManual

8



‐42dBc/30Khzor‐54dBm/1.23MHz

(|Δf|:885KHz~1.98MHz)

‐54dBc/30Khzor‐54dBm/1.23MHz(|Δf|:

1.98MHz~4.00MHz)

<‐36dBm/1kHz(|Δf|>4MHz,9KHz<f<150KHz)

<‐36dBm/10kHz(|Δf|>4MHz,150kHz<f<30MHz)

<‐36dBm/100kHz(|Δf|>4MHz,30MHz<f<1GHz)

<‐30dBm/1MHz(|Δf|>4MHz,1GHz<f<12.75GHz)

GPS

AGPSSupport

Embedded AGPS software supporting an internal GPS

subsystem solution

E911FCCmandatedphase1andphase2(optional1)

FrequencySupport

L1-band (1.57542GHz)

Channels: 210 PRN， 66 Search， 22 Simultaneous

tracking

Sensitivity

Sensitivity (UHIS):

Tracking: -156dBm

Reacquisition: -153dBm

Acquisition: -144dBm

TrackingTimeRequirement

Acquisition time:

Hot: <2s

Warm: <30s

Cold: <60s

Reacquisition: 2s - 10s Depends on signal level



1.3 Certification and Safety

ItemsRequirement

DropDesign1.2meter6directionstandarddroptest

TemperatureRange‐40to85°COperation

‐50to+100°CStorage

Humidity:20%to90%Operation

10%to95%Storage

Altitude:‐500to+18,000m



VehicleISOTestISO+7637‐2‐2004;ISO+7637‐3‐2007;ISO_10605‐2008;

ISO+16750‐2‐2010

FCCCertificationFCC47CFRPart15andPart18

SafetyULListing

OthersOperatorRequirementIndustryCanada/AT&T(optional)

ESDRequirement15KVnon‐conductive

ARROW‐CUserManual

9



2 Software Features

2.1 Basic Software

ItemsRequirement

AirInterfaceCDMA20001x800/1900MHz;GPS

1xData Supported

IPStackIpv4/IPV6

UpgradeMethodRemoteupdate /PCtool

RUIMOptional

CompatiblewithNone‐RUIMSupported

RemoteUpdateSupported

PowerModesSupported

ATCommandSupported

ReportSupported；3000records

DriverGPIO，LED，GPS，UART

GPIOsInterruptforDoorOpenDetect,Ignition

Status

LEDsGPSStatus,CDMAStatus

WatchDogSupported(CBP8.2integrated)

ResetSoftreset

StartupBannerSupported

2.2 Remote Update

TheARROW‐CsupportsOTAfieldupgradesoftheARROW‐Cresidentapplication.Anoverthe

airTFTP(TrivialFileTransferProtocol)connectionismadeoveraUDP/IPconnection.A

replacementfileisthentransferredfromaservertotheARROW‐Candthatfilereplacesthe

previousapplicationimage.

2.2.1 Auto Execute

TheAutoExecuteUtilitycopiesthecontentsoffilesystem.exfintosystemexecutableRAM

andexecutesitfromthere.Thisfileisthefactorydefaultapplication.Anotherfilenamed

custom.exfcanbeloadedintothefilesystem.

AutoExecutewilllookfirstforafilenamedupdate.exfandloadandexecutethatinplaceof

custom.exfifitexists.Ifupdate.exfexecutessuccessfully,thepreviouscopyofcustom.exfis

deletedfromthefilesystemandupdate.exfisrenamedtocustom.exf.

2.3 Power Modes

TheARROW‐Cdevicesupportsseveralpowermodesthataresetbythepowermode

command.Infullpowermodethecellularsubsystemwillmaintainapersistentcellular

connectionwheneverserviceisavailableaswellasanIPconnectionwhereavailable.

Anyhardwareorsoftwareresetwillinterruptanypowermodeandreturnthedevicetofull

powermode. Insummary,theconditionspermanentlyrestoringfullpowermodeinclude:

ARROW‐CUserManual

10



 Powercycle

 Watchdogtimeout

 Resetcommand

 CDMAphonecallreset

 SMSorUARTpowermodecommand

 Motiondetect(ifdetectorinstalledandenabled)

Wheninapowerdownmode,thefollowingresourceswillcauseinterruptsthatwillwake

theARROW‐Candcauseittoattemptcompletethefunctionassociatedwiththeinterrupt.

Simultaneousinterruptswillcausesequentialcompletionofeachassociatedfunction.These

interruptsinclude:

 Reporttimer　

 GPIOchange　

 Batterythreshold　

 Heartbeat　

 Watchdog　

 Power　‐up

Therelatedinterruptfunctionwillbeattemptedforatotaldurationsettheassociated

parameterinthepowermodecommand.

2.4 AT Command

ARROW‐CcommandsareATextensionsspecifictoARROW‐Cdevices.Theyarecloselybased

oncommandsthatareassimilaraspossibletootherindustrycommondevicesandare

essentiallysubsetsofstandardARROW‐Ccommands.CommoncommandsusedwithCDMA

modemssupportingIPconnectivityarenotincludedwithintheARROW‐Ccommandset

extensions.Thesecommandsareleftintheirnativestructure,asdefinedbytherespective

basebandCDMAchipsupplierwhichproductalreadyinuse.

CommandSummary

ThefollowingcommandsarehighlyspecializedtotheTALONCV001.Thecommandslisted

areintendedtobesimilartocounterpartsfoundincommonCDMAmodemcommand

extension.

1.AT+IONAA:Setappendmode

2.AT+IONACK:Setacknowledgementmode

3.AT+IONAPN:SetAPN

4.AT+IONBIN:Readthefactorycoresoftwareversion(readonly)

5.AT+IONBZ:Buzzersetting

6.AT+IONCV:Configurationversion

7.AT+IONDI:Setdistanceintervalinterrupt

ARROW‐CUserManual

11



8.AT+IONDTE:Setdrivingtimeevents

9.AT+IONFR:Restorefactorydefaults

10.AT+IONGF:Setgeofenceborders

11.AT+IONGFH:Setgeofencearoundcurrentlocation

12.AT+IONGPIO:GPIORead/Write

13.AT+IONGS:GPSStatereport

14.AT+IONHB:Heartbeat

15.AT+IONHC:HeadingChange

16.AT+IONINFx:Listsysteminformationsegments

17.AT+IONIP:SettargetserverIPaddressandportnumber

18.AT+IONIPC:IPChangereport

19.AT+IONIS:IgnitionState

20.AT+IONLT:LEDs’TimingandIntensity

21.AT+IONLPORT:SetthelocalIPportnumber

22.AT+IONNR:SettimebeforeIPsessionisclosedandrestarted

23.AT+IONNW:Setwatchdogtimeoutifnonetworkfound

24.AT+IONPM:Setautopowerdownmode

25.AT+IONRF:ReportFormat‐ASCII/Binary

26.AT+IONRI:Setreporttimerinterval

27.AT+IONRM:ReportMask

28.AT+IONRN:Queuereportrecordfortransmission

29.AT+IONRR:Setresetreport

30.AT+IONRS:Resetsetting‐soft/hard,periodic

31.AT+IONSD:SetSMSresponsedestination

32.AT+IONSI:Setinterrupt

33.AT+IONSQ:Setqueuelength

34.AT+IONSR:Setrelaydriver(GP3)statehighorlow

35.AT+IONSV:Readthefactoryapplicationsoftwareversion(readonly)

36.AT+IONTA:TowAlert

37.AT+IONTID:CDMAtowerIDandlocationdata

38.AT+IONUA:UpdateapplicationfirmwareOTA

ARROW‐CUserManual

12

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39.AT+IONUC:UpdateconfigurationfilesOTA

40.AT+IONVO:VirtualOdometer

41.AT+IONVTO:VirtualTripOdometer

2.5 Report

TheARROW‐Ccapturesdataandformsareportrecordwiththatdata.Thisisasingledata

structureintendedtocontainallofthetypicallyusefuldataontheTALONCV001.Other

informationcanbequeriedseparatelyusingseparateATcommands.

ReportsarealwaysgeneratedbyinterruptsregardlessofwhetherornotthereisaGPSlock.

Ifnolockhaseverbeenattainedsincehardwarereset,defaultvaluesof0arereturnedfor

allGPSfields.Ifalockhasbeenattainedandlost,thereportwillcontainthelastvalidGPS

dataincludingthetimestampofthatdata.

BaseRequirements：

1. Areportisgeneratedinresponsetoeitheraninterrupteventorinresponseto

executionofassociatedATcommandsexplicitlyrequestingone.

2. GPScoordinatesarestoredinreportsassignedhexvaluestosavespace.

3. Toreducedatatransmissioncosts,thedatawithinareportrecordcanbemasked

andremovedbeforeitistransmitted.

4. Everyreporthasatagandeachenabledinterruptoreventgeneratesaseparate

report.Thereporttagsindicatethecauseofthegeneratedreport,whichcanbean

interrupt,aneventorinresponsetoacommand.

2.6 Reset

Thereisaninternalsoftreset.

2.6.1 Context Preservation

WhenaresetiscausedbytheNetworkWatchdogorbytheResetcommand(modes0,1),

thecontextofthesystemisbeingpreservedandisrestoredafterthereset.Thecontext

includesalltheperiodictimers,thereportqueue,theodometer,etc.Thisallowstoresetthe

unitasatroubleshootingmeasureeitherperiodicallyorduetoNetworkWatchdogwithout

losingreportsthatarealreadyinthequeueorarependingonrunningtimers.Notethatthe

resetprocessmaycause1‐2minofinaccuracyinthetimersandshouldnotbeconsideredas

veryprecise.

Modes8/9oftheIONRScommandperformsoftandhardresetrespectivelywithout

preservinganycontext.Factoryreset(IONFR)alsodoesnotpreserveanycontextofthe

system.

2.7 Startup Banner

AfteraresetastartupbannerisprintedthroughtheUARTonly.Theformatandcontentof

thebannershownbelow:

FW:<firmware version>; BIN:<bin version>; MEID/ESN:<MEID/ESN>

APN1:<apn1 name>; IP:<IP>:<port>;LPORT:<lport>

RI:<s,v,t>; DTE:<t1,t2,t3>; DI:<t>; HB:<t>; NR:<t,c,r>; RS:<a,t,r>

ARROW‐CUserManual

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

3 Test Method

3.1 Hardware

TestItemDescription

BasebandFunctionTest• PowerInputTest

• PowerConsumptionandCurrentTest

• HeatDissipationTest

• UARTStabilityTest

• GPIOLevelTest

• LEDStabilityTest

• DropDownTest

• ESDTest

• High/LowTemperatureTest

• HumidityTest

RFTest• RFPerformanceTest

• GPSPerformanceTest

• AntennaPerformanceTest

3.2 Software Test

TestEnvironmentConstruct

 messageTestenvironment

1.usbdongleandPCasmessageserver

2.sendmessagetoIONX

 UDPTest environment

1.connectdongletoPCandcreatedialupasipserver

2.IONXcreateIPconnectiontoserver

 UARTTest environment

1.connectIONXtopcwithcomserialcable

2.openTermina ltoolandsendatcommand

3.reponsecanbeshownatterminalwindow

ARROW‐CUserManual

14



FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. This equipment generates

uses and can radiate radio frequency energy and, if not installed and used in accordance with

the instructions, may cause harmful interference to radio communications. However, there is

no guarantee that interference will not occur in a particular installation. If this equipment does

cause harmful interference to radio or television reception, which can be determined by turning

the equipment off and on, the user is encouraged to try to correct the interference by one or

more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

-- Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance

could void the user's authority to operate the equipment.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two

conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause

undesired operation.

The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20

cm from all persons and must not be co-located or operating in conjunction with any other antenna or

transmitter.

Connected Holdings 2AEB4AC20 User manual

Brand: Connected Holdings

Model: 2AEB4AC20

Category: GPS receiver modules

Type: User manual

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Connected Holdings 2AEB4AC20 User manual

Connected Holdings 2AEB4AC20 User manual

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