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B524/B523 Datasheet 011

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B524/B523Datasheet011

Functionaldescription

TheBSeriesSystem-on-a-Module(SoM)isaLTECat1cellulardevicewithsupportforBLE

(BluetoothLE).ItisbasedontheNordicnRF52840micro-controller.

TheBSeriesisdesignedtobeintegratedintoyourcircuitboarddesign,pluggingintoaM.2NGFF

connectoronyourboard,allowingthemoduletobechangedorupgradedeasily.

QuectelEG91-Emodem

LTEcategory1moduleforEMEAAregion

3GPPE-UTRARelease13

Cat1bandssupported:1,3,7,8,20,28A

2Gand3Gfallback(900,1800,and2100MHz)

SupportforEuropeonly(B523)

SupportforEurope,Australia,andNewZealand(B524)atthistime

NordicSemiconductornRF52840SoC

ARMCortex-M4F32-bitprocessor@64MHz

1MBflash,256KBRAM

Bluetooth5:2Mbps,1Mbps,500Kbps,125Kbps

SupportsDSPinstructions,HWacceleratedFloatingPointUnit(FPU)calculations

ARMTrustZoneCryptoCell-310Cryptographicandsecuritymodule

Upto+8dBmTXpower(downto-20dBmin4dBsteps)

NFC-Atag

On-moduleadditional8MBSPIflash

24mixedsignalGPIO(8xAnalog,4xPWM),UART,I2C,SPI

USB2.0fullspeed(12Mbps)

JTAG(SWD)pins

RGBstatuspinsforLED

ResetandModepinsforbuttons

On-moduleMFF2ParticleSIM

Twoon-moduleU.FLconnectorsforexternalantennas

M.2interface

CEcertified

RoHScompliant(lead-free)

OVERVIEW

FEATURES

Interfaces

VCC

VCCisusedtosupplypowertotheQuectelEG91-Ecellularmodule.Therecommendedinput

voltagerangeonthispinisbetween3.6Vto4.3VDC.Makesurethatthesupplycanhandle

currentsofatleast2A.

Note:ThelimitontheB402(u-bloxLTECatM1)is4.2V,soyoushouldlimitVCCto4.2Vtopreserve

compatibilitywithbothmodules.

3V3

3V3isusedtosupplypowertonRF52840,logicICs,memory,etc.and3.3visrecommended.VCC

inputvoltagerangeisbetween3Vto3.6VDC.Makesurethatthesupplycanhandlecurrentsofat

least150mA.

VBus

VBusisconnectedtotheUSBdetectpinofnRF52840toenablestheUSBinterface.The

recommendedinputvoltagerangeisbetween4.35Vto5.5VDC.

BLOCKDIAGRAM

POWER

TherearetworadiosontheB523module.ABLEradio(nRF52840)andacellularradio(Quectel).

Wehaveprovidedtwou.FLconnectorstopluginthecellularandBLEantenna.Thesearerequired

ifyouwishtousethecellularandBLE.IfyoudonotneedBLE,youdonotneedtoconnecttheBLE

antenna.

Number Label Purpose

1 BT Bluetoothantenna(optional)

2 CELL Quectelcellularmodemantenna

3 ANT_DIV LTEcellularreceivediversityantenna

ThethirdconnectoristheLTEcellularreceivediversityantenna.Asecondcellularantennacanbe

connectedtothisconnectortoimproveperformancewhenthedevicewillbemovingathigh

speeds.ItisonlyusedforLTECat1connectionsandisnotsupportedwhenin2Gor3Gmode.This

antennaisnotnecessaryinmostcasesandisnotincludedinevaluationkits.(TheB402doesnot

havethisconnectorasreceivediversityisnotsupportedinLTECatM1mode.)

CertifiedCellularAntenna

SKU Description

ANTCW2EA ParticleCellularFlexAntenna2G/3G/LTE[x1]

ANTCW2TY ParticleCellularFlexAntenna2G/3G/LTETrayof50[x50]

Type:LTEUltraWideBandFlexAntenna

Frequency/band:698MHz-2690MHz

RoHSCompliant

MechanicalSpecs:

Dimensions:97x21x0.2mm

Mounting:3Madhesivebackedforapplicationonnon-metallicsurfaces

Connectortype:FPC+IPEXconnector

Cablelength:210mm

ANTENNA

Gain:4.71dBi

GeneralAntennaGuidance

Theantennaplacementneedstofollowsomebasicrules,asanyantennaissensitivetoits

environment.Mounttheantennaatleast10mmfrommetalcomponentsorsurfaces,ideally

20mmforbestradiationefficiency,andtrytomaintainaminimumofthreedirectionsfreefrom

obstructionstobeabletooperateeffectively.

Needstuningwithactualproductenclosureandallcomponents.

FortheBLEantenna,itisrecommendedtousea2.4GHzsingle-frequencyantennaandnota

2.4GHz+5GHzantenna,soastoavoidlargegainatthefrequencytwiceof2.4GHzwhichcan

causethesecondharmonicradiationof2.4GHztoexceedstandards.

PeripheralType Qty Input(I)/Output(O)

Digital 24(max) I/O

Analog(ADC) 8(max) I

UART 1 I/O

SPI 2 I/O

I2C 2 I/O

USB 1 I/O

PWM 7(max) O

NFC 1 O

TherearesomeoptionalB523modulespecificI/O:

QuectelUSBandVBUS(formodemfirmwareupgrades)

QuectelRingIndicator(RI)output

Note:AllGPIOsareonlyratedat3.3VDCmax.

TheB523modulehas4padsatthebottomexposingtheSWDinterfaceofthenRF52840.This

interfacecanbeusedtodebugyourcodeorreprogramyourB523bootloader,deviceOS,orthe

userfirmware.Weuse4pogo-pinsconnectingtothesepadsduringproductionforfirmware

flashing.

PERIPHERALSANDGPIO

JTAGANDSWD

Memorymap

Bootloader(48KB,@0xF4000)

UserApplication

256KB@0xB4000(DeviceOS3.1andlater)

128KB@0xD4000(DeviceOS3.0andearlier)

System(656KB,@0x30000)

SoftDevice(192KB)

Reserved(4MB,@0x0040000)

OTA(1500KB,@0x00289000)

Reserved(420KB,@0x00220000)

FAC(128KB,@0x00200000)

LittleFS(2M,@0x00000000)

NRF52840FLASHLAYOUTOVERVIEW

EXTERNALSPIFLASHLAYOUTOVERVIEW(DFUOFFSET:0X80000000)

Pinsandbuttondefinitions

PinsSOM0toSOM9willvaryacrossvariousSoMmodules.Forexample,cellular-specificpinsexists

inthisrange.

AdditionallythereareRESERVED3pins,whosefunctionsvarydependingontheSoM.Forexample,

nRF52MCU-basedmodulesusesomeofthesepinsforadditionalADCandGPIO.Theyareableto

beusedasdescribedontheB523,buttheirfunctionmaybebedifferentonfuturemodules.

Formaximumcross-moduleflexibility,youshouldtrytouseonlythecommonpinswhenpossible.

# Pin Common Function nRF52 Description

1 GND GND POWER Systemground.

2 VCC VCC5 POWERSystempowerin,connecttothe+LiPoorsupplyafixed3.6-4.3vpower.

3 GND GND POWER Systemground.

4 VCC VCC POWERSystempowerin,connecttothe+LiPoorsupplyafixed3.6-4.3vpower.

5 GND GND POWER Systemground.

6 VCC VCC POWERSystempowerin,connecttothe+LiPoorsupplyafixed3.6-4.3vpower.

7 GND GND POWER Systemground.

8 VCC VCC POWERSystempowerin,connecttothe+LiPoorsupplyafixed3.6-4.3vpower.

9 GND GND POWER Systemground.

10 3V3 3V3 POWER Systempowerin,supplyafixed3.0-3.6vpower.

11 USBD+ USBD+ IO Data+pinoftheNRF52840USBport.

PINOUTDIAGRAM

PINDESCRIPTION

12 3V3 3V3 POWER Systempowerin,supplyafixed3.0-3.6vpower.

13 USBD- USBD- IO Data-pinoftheNRF52840USBport.

14 NC RESERVED3 NC Leaveunconnected.

15 GND GND POWER Systemground.

16 VUSB VUSB POWERSystempowerin,USBdetectpinfornRF52840.5VonthispinenablestheUSBinterface.

17 NFC1 SOM33 NFCinput

P0.9 NFCantennaconnection.

18 NC RESERVED3 NC Leaveunconnected.

19 NFC2 SOM43 NFCinput

P0.10 NFCantennaconnection.

20 D1 SCL IO P0.27 I2CSCL,anddigitalonlyGPIO.

21 GND GND POWER Systemground.

22 D0 SDA IO P0.26 I2CSDA,anddigitalonlyGPIO.

23 A0 ADC0 IO P0.3 AnaloginputADC02,anddigitalGPIO.

32 MODE MODE IO P0.25 ConnectedtotheMODEbuttoninput,anddigitalonlyGPIO.

33 A1 ADC1 IO P0.4 AnaloginputADC12,anddigitalGPIO.

34 RESET RESET I Active-lowresetinput.

35 A2 ADC2 IO P0.28 AnaloginputADC22,anddigitalGPIO.

36 D9 TX IO P0.6PrimarilyusedasUARTTX,butcanalsobeusedasadigitalGPIO.

37 A3 ADC3 IO P0.29 AnaloginputADC32,anddigitalGPIO.

38 D10 RX IO P0.08PrimarilyusedasUARTRX,butcanalsobeusedasadigitalGPIO.

39 AGND AGND POWER Systemanalogground.

40 D3 RESERVED3 IO P1.10UARTflowcontrolCTS,SCL1(Wire1),SPI1MOSI,digitalonlyGPIO.

41 A4 RESERVED3 IO P0.30 AnaloginputADC42,anddigitalGPIO.

42 D2 RESERVED3 IO P1.02UARTflowcontrolRTS,SDA1(Wire1),SPI1SCK,digitalonlyGPIO.

43 A5 RESERVED3 IO P0.31 AnaloginputADC52,anddigitalGPIO.

44QuectelUSBD+

SOM0 IO Data+pinoftheR410MUSBport.

45 A6 RESERVED3 IO P0.5 AnaloginputADC62,anddigitalGPIO.

46QuectelUSBD-

SOM1 IO Data-pinoftheR410MUSBport.

47 A7 RESERVED3 IO P0.2 AnaloginputADC72,anddigitalGPIO.

48 D8 CS IO P0.7 SPIinterfaceCS,anddigitalonlyGPIO.

49 AGND AGND POWER Systemanalogground.

50 D11 MISO IO P1.8 SPIinterfaceMISO,anddigitalonlyGPIO.

51 NC RESERVED3 NC Leaveunconnected.

52 D12 MOSI IO P1.9 SPIinterfaceMOSI,anddigitalonlyGPIO.

53 NC RESERVED3 NC Leaveunconnected.

54 D13 SCK IO P0.11 SPIinterfaceSCK,anddigitalonlyGPIO.

55 NC RESERVED3 NC Leaveunconnected.

56 GND GND POWER Systemanalogground.

57 NC RESERVED3 NC Leaveunconnected.

58 NC RESERVED3 NC Leaveunconnected.

59 NC RESERVED3 NC Leaveunconnected.

60 NC RESERVED3 NC Leaveunconnected.

61 RGBR RED IO P0.16 RedpinoftheRGBLED.

62 D22 GPIO0 IO P1.1 GPIO0,digitalonly.

63 RGBG GREEN IO P0.15 GreenpinoftheRGBLED.

64 D23 GPIO1 IO P1.3 GPIO1,digitalonly.

65 RGBB BLUE IO P0.14 BluepinoftheRGBLED.

66 D4 PWM0 IO P0.12 SPI1MISO,DigitalonlyGPIO,andPWM0.

67 SIM_VCC1 SOM53 POWER Leaveunconnected,1.8V/3VSIMSupplyOutputfromR410M.

68 D5 PWM1 IO P0.24 DigitalonlyGPIO,andPWM1.

69 SIM_RST1 SOM63 IO Leaveunconnected,1.8V/3VSIMResetOutputfromR410M.

70 D6 PWM2 IO P1.4 DigitalonlyGPIO,andPWM2.

71 SIM_CLK1 SOM73 IO Leaveunconnected,1.8V/3VSIMClockOutputfromR410M.

72 D7 PWM3 IO P0.13 DigitalonlyGPIO,andPWM3.

73 SIM_DATA1 SOM83 IOLeaveunconnected,1.8V/3VSIMDataI/OofR410mwithinternal4.7kpull-up.

74QuectelVBUS

SOM23 IOUSBdetectpinforR410M.5VonthispinenablestheQuectelUSBinterface.

75 QuectelRI SOM94 IO Ringindicator

1ThesepinsareconnectedtotheinternalMFF2SIMandshouldbeleftopen.

2A0-A7are12-bitAnalog-to-Digital(A/D)inputs(0-4095).

3SoM-specificandReservedpinswillvarydependingonmodule.Theyareabletobeusedonthe

B523,buttheirfunctionmaybebedifferentonfuturemodules.

4RIisavailableontheB523(Quectel)butnotontheB402(u-bloxLTEM1)

5TheVCCmaximumis4.3VontheB523(Quectel)butis4.2VontheB402(u-bloxLTEM1).For

compatibilityacrossmodules,limitthisto4.2V.

Bydefault,theTinkerapplicationfirmwareenablestheuseofthebq24195PMICandMAX17043

fuelgauge.ThisinturnusesI2C(D0andD1)andpinA6(PM_INT).IfyouarenotusingthePMICand

fuelgaugeandwithtousethesepinsforotherpurposes,besuretodisablesystempower

configuration.Thissettingispersistent,soyoumaywanttodisableitwithyourmanufacturing

firmwareonly.

System.setPowerConfiguration(SystemPowerConfiguration());

IfyouareusingEthernetwiththeBSeriesSoM,thefollowingpinsareusedbyEthernet:

DeviceOSPin M.2Pin EthernetPin

MISO 50 SPIMISO

MOSI 52 SPIMOSI

SCK 54 SPISCK

A7 47 nRESET

D22 62 nINTERRUPT

D8 48 nCHIPSELECT

SystemRGBLED

UnliketheBoron,theB523moduledoesnothaveanon-moduleRGBsystemstatusLED.Wehave

provideditsindividualcontrolpinsforyoutoconnectanLEDofyourliking.Thiswillallowgreater

flexibilityintheenddesignofyourproducts.

AdetailedexplanationofdifferentcolorcodesoftheRGBsystemLEDcanbefoundhere.

LEDSTATUS

Technicalspecifications

Supplyvoltages

Parameter Symbol Min Typ Max Unit

Supplyvoltages

SupplyInputVoltage VCC -0.3 +4.7 V

SupplyInputVoltage 3V3 -0.3 +3.9 V

VBUSUSBsupplyvoltage VUSB -0.3 +5.8 V

I/Opinvoltage

VI/O,VDD≤3.6V IO -0.3 VDD+0.3 V

VI/O,VDD>3.6V IO -0.3 +3.9 V

NFCantennapincurrent

INFC1/2 NFC1/NFC2 80 mA

Radio

BTRFinputlevel(52840) 10 dBm

Environmental

Storagetemperature -40 +85 °C

[1]Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamage

tothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseorany

otherconditionsbeyondthoseindicatedunderrecommendedoperatingconditionsisnotimplied.

Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.

Parameter Symbol Min Typ Max Unit

Supplyvoltages

SupplyInputVoltage VCC +3.6 +3.8 +4.3 V

SupplyInputVoltage 3V3 +3.0 +3.3 +3.6 V

VBUSUSBsupplyvoltage VUSB +4.35 +5.0 +5.5 V

Environmental

Normaloperatingtemperature1 -20 +25 +753 °C

Extendedoperatingtemperature2 -40 +85 °C

HumidityRangeNoncondensing,relativehumidity 95 %

Notes:

1Normaloperatingtemperaturerange(fullyfunctionalandmeet3GPPspecifications).

2Extendedoperatingtemperaturerange(RFperformancemaybeaffectedoutsidenormal

operatingrange,thoughmoduleisfullyfunctional)

3Themaximumoperatingtemperatureis75°ContheB523(Quectel)butis65°ContheB402(u-

bloxLTEM1).Forcompatibilityacrossmodules,limitthisto65°C.

ABSOLUTEMAXIMUMRATINGS[1]

RECOMMENDEDOPERATINGCONDITIONS

Parameter Symbol Min Typ Peak Unit

OperatingCurrent(uCon,peripheralsandradiodisabled) Iidle 4.47 4.48 4.51 mA

OperatingCurrent(uCon,cellularonbutnotconnected) Icell_idle 17.5 34.2 744 mA

OperatingCurrent(uCon,cellularconnectingtotower) Icell_conn_twr 17.9 72.3 711 mA

OperatingCurrent(uCon,cellularconnectingtocloud) Icell_conn_cloud 23.0 93.6 669 mA

OperatingCurrent(uCon,cellularconnectedbutidle) Icell_cloud_idle 22.9 26.8 149 mA

OperatingCurrent(uCon,cellularconnectedandtransmitting) Icell_cloud_tx 113 139 519 mA

STOPmodesleep,GPIOwake-up Istop_gpio 323 538 916 uA

STOPmodesleep,analogwake-up Istop_analog 272 537 948 uA

STOPmodesleep,RTCwake-up Istop_intrtc 264 537 947 uA

STOPmodesleep,BLEwake-up,advertising Istop_ble_adv 604 2260 uA

STOPmodesleep,BLEwake-up,connected Istop_ble_conn 619 1700 uA

STOPmodesleep,serialwake-up Istop_usart 327 537 912 uA

STOPmodesleep,cellularwake-up Istop_cell 18.7 23.1 140 mA

ULPmodesleep,GPIOwake-up Iulp_gpio 53.6 446 uA

ULPmodesleep,analogwake-up Iulp_analog 55.8 420 uA

ULPmodesleep,RTCwake-up Iulp_intrtc 54.8 444 uA

ULPmodesleep,BLEwake-up,advertising Iulp_ble_adv 139 2430 uA

ULPmodesleep,BLEwake-up,connected Iulp_ble_conn 162 1090 uA

ULPmodesleep,serialwake-up Iulp_usart 317 537 938 uA

ULPmodesleep,cellularwake-up Iulp_cell 18.4 22.8 149 mA

HIBERNATEmodesleep,GPIOwake-up Ihib_gpio 29.7 430 uA

HIBERNATEmodesleep,analogwake-up Ihib_analog 30.8 441 uA

1Themin,andparticularlypeak,valuesmayconsistofveryshorttransients.Thetypical(typ)values

arethebestindicatorofoverallpowerconsumptionovertime.Thepeakvaluesindicatethe

absoluteminimumcapacityofthepowersupplynecessary,notoverallconsumption.

POWERCONSUMPTION

Boronhastworadiomodules.

nRF52840

Bluetooth®5,2.4GHz

95dBmsensitivityin1MbpsBluetooth®lowenergymode

103dBmsensitivityin125kbpsBluetooth®lowenergymode(longrange)

20to+8dBmTXpower,configurablein4dBsteps

4GLTEcellularcharacteristicsforEG91-E

Parameter Value

Protocolstack 3GPPRelease13

RAT LTECat1

LTEFDDBands Band28A(700MHz)

Band20(800MHz)

Band8(900MHz)

Band3(1800MHz)

Band1(2100MHz)

Band7(2600MHz)

WCDMABands Band8(900MHz)

Band1(2100)

GSMBands EGSM900(900MHz)

DCS1800(1800MHz)

Powerclass Class4(33dBm±2dB)forEGSM900

Class1(30dBm±2dB)forDCS1800

ClassE2(27dBm±3dB)forEGSM9008-PSK

ClassE2(26dBm±3dB)forDCS18008-PSK

Class3(24dBm±3dB)forWCDMAbands

Class3(23dBm±2dB)forLTEFDDbands

RADIOSPECIFICATIONS

ThesespecificationsarebasedonthenRF52840datasheet.

Symbol Parameter Min Typ Max Unit

VIH Inputhighvoltage 0.7xVDD VDD V

VIL Inputlowvoltage VSS 0.3xVDD V

VOH,SD Outputhighvoltage,standarddrive,0.5mA,VDD≥1.7 VDD-0.4 VDD V

VOH,HDH Outputhighvoltage,highdrive,5mA,VDD>=2.7V VDD-0.4 VDD V

VOH,HDL Outputhighvoltage,highdrive,3mA,VDD>=1.7V VDD-0.4 VDD V

VOL,SD Outputlowvoltage,standarddrive,0.5mA,VDD≥1.7 VSS VSS+0.4 V

VOL,HDH Outputlowvoltage,highdrive,5mA,VDD>=2.7V VSS VSS+0.4 V

VOL,HDL Outputlowvoltage,highdrive,3mA,VDD>=1.7V VSS VSS+0.4 V

IOL,SD CurrentatVSS+0.4V,outputsetlow,standarddrive,VDD≥1.7 1 2 4 mA

IOL,HDH CurrentatVSS+0.4V,outputsetlow,highdrive,VDD>=2.7V 6 10 15 mA

IOL,HDL CurrentatVSS+0.4V,outputsetlow,highdrive,VDD>=1.7V 3 mA

IOH,SD CurrentatVDD-0.4V,outputsethigh,standarddrive,VDD≥1.7 1 2 4 mA

IOH,HDH CurrentatVDD-0.4V,outputsethigh,highdrive,VDD>=2.7V 6 9 14 mA

IOH,HDL CurrentatVDD-0.4V,outputsethigh,highdrive,VDD>=1.7V 3 mA

tRF,15pF Rise/falltime,standarddrivemode,10-90%,15pFload1 9 ns

tRF,25pF Rise/falltime,standarddrivemode,10-90%,25pFload1 13 ns

tRF,50pF Rise/falltime,standarddrivemode,10-90%,50pFload1 25 ns

tHRF,15pF Rise/Falltime,highdrivemode,10-90%,15pFload1 4 ns

tHRF,25pF Rise/Falltime,highdrivemode,10-90%,25pFload1 5 ns

tHRF,50pF Rise/Falltime,highdrivemode,10-90%,50pFload1 8 ns

RPU Pull-upresistance 11 13 16 kΩ

RPD Pull-downresistance 11 13 16 kΩ

CPAD Padcapacitance 3 pF

CPAD_NFC PadcapacitanceonNFCpads 4 pF

INFC_LEAKLeakagecurrentbetweenNFCpadswhendriventodifferentstates

1 10 μA

Riseandfalltimesbasedonsimulations

GPIOdefaulttostandarddrive(2mA)butcanbereconfiguredtohighdrive(9mA)inDeviceOS

2.0.0andlaterusingthe pinSetDriveStrength() function.

I/OCHARACTERISTICS

Mechanicalspecifications

Parameters Value Unit

Width 30 mm

Height 42 mm

Thickness 5.5 mm

Weight 6.2 grams

Dimensionsareinmillimeters.

DIMENSIONSANDWEIGHT

MECHANICALDRAWING

ThematingconnectorisaanM.2(NGFF)type4.Notethatthereareseveraldifferentkey

configurationsfortheM.2,andtype4isdifferentthaniscommonlyusedonSSDs.

OnecompatibleconnectoristheTE2199230-4.Itiswidelyavailableincludingatsupplierssuchas

DigiKey.

MATINGCONNECTORANDLANDPATTERN

WerecommendthisscrewassemblytosecurelyaffixtheBseriesSoMtoyourcircuitboard.From

toptobottom:

M3screw,3mmlong

M3washer

M3standoff,2.45mm

Mountinghole,2.6mmmetalhole,3.1mmmetalringdiameter(pictureisofthebottomsideof

thecircuitboard)

SCREWASSEMBLY

AnalternativedesignusesaJAESM3ZS067U410-NUT1-R1200standoff.It'sreflowsolderedto

yourbaseboardandhasathreadedholeforaM2*3screwtoholddowntheSoM.Thismaybe

easiertoobtain.

Notethatahold-downscrewisrequiredbecausetheM.2connectordoesnothaveintegrated

locksandtheSoMwillpopupifnotattachedtothebaseboard.

WestronglyrecommendagainstplacingcomponentsundertheSOMboardbecausethereisnot

enoughheight.

DESIGNCONSIDERATIONS

ProductHandling

TheBseriescontainshighlysensitiveelectroniccircuitryandisanElectrostaticSensitiveDevice

(ESD).HandlinganBserieswithoutproperESDprotectionmaydestroyordamageitpermanently.

ProperESDhandlingandpackagingproceduresmustbeappliedthroughouttheprocessing,

handlingandoperationofanyapplicationthatincorporatestheBseriesmodule.ESDprecautions

shouldbeimplementedontheapplicationboardwheretheBseriesismounted.Failureto

observetheseprecautionscanresultinseveredamagetotheBseries!

TheU.FLantennaconnectorisnotdesignedtobeconstantlypluggedandunplugged.The

antennapinisstaticsensitiveandyoucandestroytheradiowithimproperhandling.Atinydabof

glue(epoxy,rubbercement,liquidtapeorhotglue)ontheconnectorcanbeusedsecurelyhold

thepluginplace.

TheM.2edgeconnectorisstaticsensitiveandshouldbehandledcarefully.TheM.2connectoris

notdesignedforrepeatedremovalandinsertionofthemodule.

ESDPRECAUTIONS

CONNECTORS

Schematics

MICROCONTROLLER

QUECTELCELLULARMODEM

M.2CONNECTOR

Note:ThelabelsforCTSandRTSarereversedinthisschematic.

SIMANDFLASH

BUFFERS

Defaultsettings

TheBseriescomespre-programmedwithabootloaderandauserapplicationcalledTinker.This

applicationworkswithaniOSandAndroidappalsonamedTinkerthatallowsyoutoveryeasily

toggledigitalpins,takeanaloganddigitalreadingsanddrivevariablePWMoutputs.

Thebootloaderallowsyoutoeasilyupdatetheuserapplicationviaseveraldifferentmethods,USB,

OTA,SerialY-Modem,andalsointernallyviatheFactoryResetprocedure.Allofthesemethods

havemultipletoolsassociatedwiththemaswell.

Countrycompatibility

Country Model Technologies Carriers

Albania B524 2G,3G,Cat1 ALBtelecom,Telekom,Vodafone

Australia B524 3G,Cat1 Optus,Telstra,Vodafone

Austria B524 2G,3G,Cat1 3(Drei),A1,T-Mobile

Belarus B524 2G,3G,Cat1 A1

Belgium B524 2G,3G,Cat1 Base,Orange,Proximus

BosniaandHerzegovina B524 2G,3G BHTelecom,HTEronet

Bulgaria B524 2G,3G A1,Telenor,Vivacom

Croatia B524 2G,3G,Cat1 HrvatskiTelekom,Tele2

Czechia B524 2G,3G,Cat1 O2,T-Mobile,Vodafone

Denmark B524 2G,3G,Cat1 3(Tre),TDC,Telenor,Telia

Estonia B524 2G,3G,Cat1 Elisa,Tele2,Telia

FaroeIslands B524 2G,3G FaroeseTelecom,Vodafone

Finland B524 2G,3G,Cat1 DNA,Elisa,Telia

France B524 2G,3G,Cat1 Bouygues,FreeMobile,Orange,SFR

Germany B524 2G,3G,Cat1 O2,Telekom,Vodafone

Gibraltar B524 2G,3G,Cat1 Gibtel

Greece B524 2G,3G,Cat1 Cosmote,Vodafone,Wind

Hungary B524 2G,3G,Cat1 MagyarTelekom,Telenor,Vodafone

Iceland B524 2G,3G,Cat1 Nova,Siminn,Vodafone

Ireland B524 2G,3G,Cat1 3(Tre),Meteor,O2,Vodafone

Italy B524 2G,3G,Cat1 TIM,Vodafone,Wind

Latvia B524 2G,3G,Cat1 Bite,LMT,Tele2

Liechtenstein B524 2G,3G,Cat1 Mobilkom,Orange

Lithuania B524 2G,3G,Cat1 Bite,Omnitel,Tele2

Luxembourg B524 2G,3G,Cat1 Orange,POST,Tango

Malta B524 2G,3G,Cat1 GoMobile,Vodafone

Moldova B524 2G,3G,Cat1 Moldcell,Orange

Montenegro B524 2G,3G,Cat1 Mtel,T-Mobile,Telenor

Netherlands B524 2G,3G,Cat1 KPN,T-Mobile,Vodafone

NewZealand B524 2G,3G,Cat1 2degrees,Spark,Vodafone

Norway B524 2G,3G,Cat1 TDC,Telenor,Telia

Poland B524 2G,3G,Cat1 Orange,Play,Plus,T-Mobile

Portugal B524 2G,3G,Cat1 NOS,TMN,Vodafone

Romania B524 2G,3G,Cat1 DigiMobil,Orange,TelekomRomania,Vodafone

Serbia B524 2G,3G,Cat1 Telenor,VIP

Slovakia B524 2G,3G,Cat1 O2,Orange,Telekom

Slovenia B524 2G,3G,Cat1 A1,Mobitel

Spain B524 2G,3G,Cat1 Orange,Telefonica,Vodafone,Yoigo

Sweden B524 2G,3G,Cat1 3(Tre),Tele2,Telenor,Telia

Switzerland B524 2G,3G,Cat1 Salt,Sunrise,Swisscom

UnitedKingdom B524 2G,3G,Cat1 3,EE,Manx,O2,Sure,Vodafone

Orderinginformation

SKU Description Region Modem EtherSIM Lifecycle Replacement

B524MEA BSeriesLTECAT-1/3G/2G(Europe)[x1] EMEAA EG91-E ✓ GA

B524MTY BSeriesLTECAT-1/3G/2G(Europe),Tray[x50] EMEAA EG91-E ✓ GA

B523MEA BSeriesLTECAT-1/3G/2G(Europe)[x1] EMEAA EG91-E NRND B524MEA

B523MTY BSeriesLTECAT-1/3G/2G(Europe),Tray[x50] EMEAA EG91-E NRND B524MTY

Revisionhistory

Revision Date Author Comments

001 27Apr2020 RK FirstRelease

002 30Jul2020 RK AddedexplanationofDIVconnector

003 16-Sep-2020 RK Addedpowerconsumptioninformation

004 04-Jan-2021 RK Fixincorrectpinnumberonpogopindiagram

005 15-Mar-2021 RK Updatedmodel,carrier,orderinginformation

006 23-Mar-2021 RK Pins40and42functionswerereversed

007 26-Apr-2021 RK AddedB524modelnumber

008 14-May-2021 RK Pins40and42werenotactuallyreversed

009 19-May-2021 RK ListEthernetreservedpins

010 28-Jun-2021 RK AddedDeviceOS3.1memorymapinformation

011 10-Sep-2021 RK Changedwordingofpeakvs.maxcurrent