CB-OBS410 ELECTRICAL MECHANICAL DATA SHEET
u-bloxCB-OBS410 ELECTRICAL MECHANICAL DATASHEETDocument RevisionDocument number: 6553614Release: Apr 14, 2014 16:28Document version: 13Copyright 2014 u-blox AG. The contents of this document can be changed by u-blox AG without prior notice and do not constitute any bindingundertakings from u-blox AG. u-blox AG is not responsible under any circumstances for direct, indirect, unexpected damage or consequent damagethat is caused by this document. All rights reserved. All brand and product names are trademarks or service marks of their respective owners.Copyright 2014 u-blox AGPage 1 of 55
u-blox1 Table of Content1 Table of Content2 Introduction2.1 Related Documents2.2 Product Variants2.3 Block Diagram3 Electrical Interface and Connectors3.1 Pin Numbering3.2 Pin Description3.3 Characteristics3.4 Hardware Reset4 Operating Status5 Antennas5.1 Surface Mounted Antennas (Internal)5.2 External antennas6 Mechanics6.1 Module Outlines6.2 Using the J2/J3 Board-to-Board Connectors6.3 Using Press-Fit Nuts for Mounting the Module6.4 Using the J6 PCB solder pads6.5 Antenna Issues7 Bluetooth Information7.1 General information7.2 Bluetooth Qualification information8 Regulatory Information8.1 Declaration of Conformity8.2 Safety Compliance8.3 FCC and IC Compliance8.4 UL listing information8.5 Japan Radio Equipment Compliance (TELEC)8.6 Compliance with RoHS directive9 Guidelines for Efficient and Safe Use9.1 General9.2 Product Care9.3 Radio Frequency Exposure9.4 Electronic Equipment9.5 Potentially Explosive Atmospheres9.6 Power Supply10 Application Notes10.1 Step-by-Step Guide10.2 Design ExamplesCopyright 2014 u-blox AGPage 2 of 55
u-blox2 IntroductionThe hardware of the cB-OBS410 products are refered as cB-0925 and the module is Type Approved with thetype name cB-0925.The cB-OBS410 is a small size Bluetooth module based on the ST-Ericsson STLC2500 radio chip and a STMicroelectronics STM32F10x microprocessor. The module is available in different configuration (see ProductVariants) with Internal antennas or a U.FL. connector for connecting an external antenna.Figure 1: cB-OBS410i-04 OEM Serial Port Adapter with internal antenna2.1 Related DocumentsThere are some documents related to the Serial Port Adapter:The Bluetooth Serial Port Adapter AT Commands document contains a description of the AT commandssupported in the Serial Port Adapter. It also contains information on how to use the AT commands tocreate Bluetooth applications.The cB-OBS410 Electrical & Mechanical Datasheet (this document) contains important informationabout the OEM Serial Port Adapter. Read this document if you are using the OEM Serial Port Adapter.The Bluetooth Qualification Guide contains a step by step guide that describes how to create a Bluetoothend product listing for products integrating the cB-OBS410.Copyright 2014 u-blox AGPage 3 of 55
u-blox2.2 Product VariantsThe module is available in three antenna options. Please note that the j-version (extra low antenna profile) isavailable on special request only, since the antenna performance may be limited because of the small size ofthe antenna.Table 1: Product variantsProduct NameRegulatoryID /FCC ID /IC IDBluetoothTypeDescriptioncB-OBS410i-04cB-0925 /PVH0925 /5325A-0925ClassicBluetoothClass 1OEM Serial Port Adapter410 with internal antenna,board-to-board and solderpads.cB-OBS410x-04cB-0925 /PVH0925 /5325A-0925ClassicBluetoothClass 1OEM Serial Port Adapter410 with U.FL. connector forexternal antenna,board-to-board and solderpads.cB-OBS410j-04cB-0925 /PVH0925 /5325A-0925ClassicBluetoothClass 1OEM Serial Port Adapter410 with internal antenna(extra low antenna profile),board-to-board and solderpads. Available on specialrequest only.Copyright 2014 u-blox AGPage 4 of 55
u-blox2.3 Block DiagramFigure 2: Block diagram of cB-OBS410Copyright 2014 u-blox AGPage 5 of 55
u-blox3 Electrical Interface and ConnectorsThis section describes the signals available on the module interface connectors. There are three ways toconnect to the OEM Serial Port Adapter:Via the PCB solder pads on the edge of the PCB, J6 (see Figure 3). See Section Using the J6 PCBsolder pads for more information.Via the 2x20-pin 1mm pitch board-to-board (one piece part) connectors, J2 through J3. The J2 to J3connectors on the OEM Serial Port Adapter exist on the module only as a mating PCB-layout pattern(see Figure 3). See Section Using the J2/J3 Board-to-Board Connectors for more information.Figure 3: The solder pads J6 are available on the long edges of the bottom side of the PCB. Theboard-to-board connector pads J2-J3 are located between the mounting holes.3.1 Pin Numbering3.1.1 J2, J3 and J6 bottom side connectorsFigure 4: Bottom view of the PCB with the pin numbering of the J2, J3 and the J6 connectors.Copyright 2014 u-blox AGPage 6 of 55
u-blox3.2 Pin DescriptionTable 2: Signals description.J2PinNbrJ3PinNbrJ6PinNbrSignal NameSignalLevel1-28, 123,25***VSSGround3-4-4VCC 3V33.3 ption-GNDIn-3.0 - 6.0 VDC power supply---Reserved, do not connect.-CMOSIn/Out10AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.24-CMOSIn/Out11AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.1126-CMOSIn/Out12AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.-727-CMOSIn/Out13AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.-628-CMOSIn/Out14AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.-131-CMOSIn/Out15AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.-232-CMOSIn/Out16AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.Copyright 2014 u-blox AGTypePage 7 of 55
u-blox-333-CMOSIn/Out17AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.-434-CMOSIn/Out18AT command controlled IO pin. Seethe "Bluetooth Serial Port Adapter ATCommands" documentation for moreinfo.11-7RED/ModeCMOSOut2RED:Logic Red LED Signal (see the Operating Status section). Active low.Mode: Not used on cB-OBS410. Thispin is also used to select Logic levelmode (instead of RS232) forconnectBlue products with internalRS232 driver. To be compatible withthese products check the datasheet forthese products about this signal.12-6Switch-0CMOSIn1Used for the "Connect on externalsignal" function, see the Serial PortAdapter AT command Specification formore information on the Functionswitch. Active low.A secondary function is that the modulewill restore all factory settings if boththe Switch-1 and Switch-0 signals arelow during start up.See the Serial Port Adapter ATcommand Specification for moreinformation on the Restoring DefaultConfiguration functionality.See section Switch-0 Signal for designexamples.Copyright 2014 u-blox AGPage 8 of 55
u-blox13-8GREEN/Switch-1CMOSIn/Out3This signal is multiplexed:GREEN:Logic Green LED Signal (seethe Operating Status section). Not validuntil 500ms after startup. Active low.Switch-1: If the level on this pin ispulled-down** the unit goes back todefault serial settings. The Switch-1input is only active during the first500ms after startup. The module willrestore all factory settings if both theSwitch-1 and Switch-0 signals are lowduring start up.See the Serial Port Adapter ATcommand Specification for moreinformation on the Restoring DefaultConfiguration functionality.See section GREEN/Switch-1 fordesign examples.14-9BLUECMOSOut4Logic Blue LED Signal (see the Operating Status section). Active low.Note: Signal will flicker at datatransmission.See section BLUE Signal for designexamples.15-10UART-CTS*CMOSIn5Clear To Send. Hardware flow control.Active low.16-11UART-TxD*CMOSOut6Transmit Data. "0" : Low, "1" : High17-12UART-RTS*CMOSOut7Request To Send. Hardware flowcontrol. Active low.18-13UART-RxD*CMOSIn8Receive Data. "0" : Low, "1" : High19-5UART-DTR*CMOSOut0Data Terminal Ready. Active low.20-18,30***UART-DSR*CMOSIn9Data Set Ready. Active low.-191,22***CMOSIn-936CMOSOutCopyright 2014 u-blox AGSerialSelect-0Hardware reset20Control signal for external serialtransceivers.See Serial Interface section for moreinfo.Page 9 of 55
u-blox-1035SerialSelect-1CMOSOut19Control signal for external serialtransceivers.See Serial Interface section for moreinfo.-202VCC 2V852.85 VOut-Regulated interface voltage for voltagelevel shifting, max 10mA.* All signals are logic level UART signals (typically 0 - 2.85VDC).** Use max 4.7kOhm as pull-down which is different to previous product generations from connectBlue.*** Alternative signal pin recommended to use in new designs (both signal pins should be connected).3.3 CharacteristicsThe cB-OBS410 module has linear power supplies, which means that the current is constant if the voltagesupply is changed.3.3.1 Power supplyNOTERead the Guidelines for Efficient and Safe Use before using the modules.Table 3: Power supplySymbolParameterVCC 3V3Power supply (Unregulated*)ValueUnitMin3.0VDCMax6.0VDCThe module is equipped with internal linear voltage regulators.Table 4: Current consumptionSymbolModeICC@ VCC 3V3 3.3VNot connectedConnectedTransmitting @115.2kbit/sCopyright 2014 u-blox AGConnectable, discoverableIdle or .5mAPeak57.8mAAverage25.1mAPeak64.9mAPage 10 of 55
u-bloxInquiryAverage35.5mAPeak71.0mA3.3.2 Input/Output signalsTable 5: Input/output signalsSymbolParameterVIN LowLogic LOW level input voltageVIN HighLogic HIGH level input OUT LowLogic LOW level output voltageMax0.40VVOUT HighLogic HIGH level output voltageMin2.40VIIOSink and source currentMax4mACIOI/O pin capacitanceTyp5pFR IN PULL-UPInput signals (includingMin30kOhmTyp40kOhmMax50kOhmMin300nst Reset) internal pull-upReset pulse length3.3.3 EnvironmentalTable 6: Temperatures characteristicsParameterStorage temperatureCopyright 2014 u-blox AGValueUnitMin-40 CMax 125 CPage 11 of 55
u-bloxOperating temperatureMin-30 CMax 85 C3.4 Hardware ResetA hardwareinput is available on the J3 and J6 connectors (see Pin Numbering). An external resetsource must be open drain collector, see section Reset for design examples. Thepulled-up with 30kOhm. All signal pins are floating in reset state.Copyright 2014 u-blox AGpin is internallyPage 12 of 55
u-blox4 Operating StatusThe module can be in different modes (see the Serial Port Adapter AT command Specification for moreinformation about the modes) and the RED, GREEN and BLUE signals can be used to detect or indicate thestatus. The LED signals are active LOW.Table 7: Signal states in different module modesSerial Port AdapterModeStatusRGB LEDColorGREENGPIOBLUEGPIOREDGPIOData modeIDLEGreenLOWHIGHHIGHAT modeIDLEOrangeLOWHIGHLOWData mode, AT modeCONNECTING*PurpleHIGHLOWLOWData mode, AT modeCONNECTED*BlueHIGHLOWHIGH*On data activity the active LEDs flashes and will be HIGH for 50-100ms. For information on how to suppressthe flashes see section BLUE Signal.DTR signal can be set to indicate an active Bluetooth link. For more information see Serial Port Adapter ATcommand Specification.Copyright 2014 u-blox AGPage 13 of 55
u-blox5 AntennasThis chapter gives a quality overview of the different antenna options.There are 2 different antenna options available:Internal surface mounted (SMD) antenna.An U.FL. connector for external antennas. Different types of external antennas are available.The sections below lists the antennas that are included in the radio type approvals of the module. For eachantenna the "Approvals" field defines in which test reports the antenna is included. Definitions of the"Approvals" field are:FCC - The antenna is included in the FCC test reports, and thus approved for use in countries thataccept the FCC radio approvals, primarily US.IC - The antenna is included in the IC (Industrie Canada) test reports, and thus approved for use incountries that accept the IC radio approvals, primarily Canada.R&TTE - The antenna is included in the R&TTE test reports, and thus approved for use in countries thataccept the R&TTE radio approvals, primarily the European countries.TELEC - The antenna is included in the Japanese government affiliated TELEC test reports, and thusapproved for use in the Japanese market.In general, antennas with SMD antenna, Reverse Polarity SMA connector or U.FL connector are included inFCC, IC, R&TTE and TELEC radio tests. Antennas with SMA connector are in general included in R&TTE andTELEC radio tests but not FCC or IC due to FCC/IC regulations.5.1 Surface Mounted Antennas (Internal)Part NumberOBS411iAntenna nameFR05-01-N-0-102ManufactureFractusGain1 dBiAntenna size(LxWxH)7.0 x 3.0 x 2.0 mmCommentThe antenna gain is very dependent of the mounting ofthe module.See section Antenna Issues for mounting the moduleconsidering the antenna.ApprovalFCC, IC, R&TTE and TELECCopyright 2014 u-blox AGPage 14 of 55
anufactureFractusGain0 dBiAntennasize(LxWxH)7.0 x 3.0 x 1.0 mmCommentThe antenna gain is very dependent of the mounting of themodule.See section Antenna Issues for mounting the moduleconsidering the antenna.Please note that this version is only available on specialrequest. The antenna performance is limited because of thesmall size of the antenna.ApprovalFCC, IC, R&TTE and TELECCopyright 2014 u-blox AGPage 15 of 55
u-blox5.2 External antennasThe external antennas are connected to the board through a U.FL connector. Some of the antennas areconnected directly to the U.FL connector of the board and some are connected using an SMA or reversedpolarity SMA connector through a short U.FL to SMA or reversed polarity SMA adapter cable.Antennas with a part number in the form "cB-ACC-XX" are available for orders via the connectBlue distributionnetwork.For information about other antennas please contact connectBlue5.2.1 Antenna AccessoriesPartNumbercB-ACC-18 / cB-ACC-48NameU.FL to SMA adapter cableConnectorU.FL and SMA jack (outer thread and pinreceptacle)Cablelength120 mmCable lossLess than 0.5dBCommentThe SMA connector may be mounted ina panel.ApprovalR&TTE and TELECPartNumbercB-ACC-38NameU.FL to reverse polarity SMA adaptercableCopyright 2014 u-blox AGPage 16 of 55
u-bloxConnectorU.FL and reverse polarity SMA jack (outerthread and pin)Cablelength120 mmCablelossLess than 0.5dBCommentThe reverse polarity SMA connector maybe mounted in a panel.ApprovalFCC, IC, R&TTE and TELECCopyright 2014 u-blox AGPage 17 of 55
u-blox5.2.2 Recommended antennasPartNumbercB-ACC-61NameEx-IT 2400 RP-SMA 28-001ManufactureProAntPolarizationVerticalGain 3.0 dBiSizeØ 12.0 x 28.0 mmConnectorReverse Polarity SMA plug (inner thread and pin receptacle)CommentTo be mounted on the U.FL to Reverse Polarity SMA adapter cable(cB-ACC-38).An SMA version antenna is also available but not recommended to use(Ex-IT 2400 SMA 28-001).ApprovalFCC, IC, R&TTE and TELECPart NumbercB-ACC-63NameEx-IT 2400 MHF 28ManufactureProAntPolarizationVerticalGain 2.0 dBiSizeØ 12.0 x 28.0 mmCable length100 mmCopyright 2014 u-blox AGPage 18 of 55
u-bloxConnectorU.FL. connectorCommentTo be mounted on the U.FL connector on the PCB.ApprovalFCC, IC, R&TTE and TELECPartNumbercB-ACC-64NameEx-IT 2400 RP-SMA 70-002ManufactureProAntPolarizationVerticalGain 3.0 dBiSizeØ 10 x 83 mmConnectorReverse Polarity SMA plug (innerthread and pin receptacle)CommentTo be mounted on the U.FL to ReversePolarity SMA adapter cable(cB-ACC-38).An SMA version antenna is alsoavailable but not recommended to use(Ex-IT 2400 SMA 70-002).ApprovalFCC, IC, R&TTE and TELECPartNumbercB-ACC-60Copyright 2014 u-blox AGPage 19 of 55
u-bloxNameEx-IT 2400 MHF 70-001ManufactureProAntPolarizationVerticalGain 3.0 dBiSizeØ 9.4 x 70.5 mmCablelength100 mmConnectorU.FL. connectorCommentTo be mounted on the U.FL connectoron the PCB.ApprovalFCC, IC, R&TTE and TELECPartNumbercB-ACC-57NameInSide-2400Copyright 2014 u-blox AGPage 20 of 55
u-bloxManufactureProAntGain 3.0 dBiSize27 x 12 mm (triangular)Cablelength100 mmConnectorU.FL. connectorCommentTo be mounted on the U.FL connectoron the PCB.ApprovalFCC, IC, R&TTE and TELECPart ain 3.0 dBiSizeØ 50.0 x 30.0 mmConnectorSMA plug (inner thread and pin)CommentTo be mounted on the U.FL to SMA adapter cable.ApprovalR&TTEand TELECPartNumbercB-ACC-67Copyright 2014 u-blox AGPage 21 of 55
u-bloxNameOutside-2400ManufactureProAntGain 3.0 dBiSize36.0 x 18.0 x 16.0 mmCablelength70 mmConnectorU.FL. connectorCommentTo be mounted on the U.FL connectoron the PCB.ApprovalFCC, IC, R&TTE and TELECCopyright 2014 u-blox AGPage 22 of 55
u-blox5.2.3 Alternative antennasThe alternative antennas are available for backward compability but not recommended for new designs.PartNumbercB-ACC-16 / cB-ACC-36NameWCR2400-SMA / WCR2400-SMRPManufactureLaird Technologies/ CenturionPolarizationVerticalGain 2.0 dBiSize100 mm (Straight)ConnectorcB-ACC-16: SMA plug (inner threadand pin)cB-ACC-36: Reverse Polarity SMA plug(inner thread and pin receptacle)CommentcB-ACC-16 is to be used togetherwith the U.FL to SMA adapter cable(cB-ACC-18 or cB-ACC-48).cB-ACC-36 is to be used togetherwith the U.FL to Reverse Polarity SMAadapter cable (cB-ACC-38).ApprovalcB-ACC-36: FCC, IC, R&TTE andTELECcB-ACC-16: R&TTE and TELECPartNumbercB-ACC-27 / cB-ACC-29Copyright 2014 u-blox AGPage 23 of 55
u-bloxNameWCR-2400-IP04 / WCR-2400-IP10ManufactureLaird Technologies/ CenturionPolarizationVerticalGain 2.0 dBiSize108 mm (Straight)CablelengthcB-ACC-27: 100 mmcB-ACC-29: 250 mmConnectorU.FL. connectorCommentTo be mounted on the U.FL connectoron the PCB.ApprovalFCC, IC, R&TTE and eMobile Mark Communications AntennasPolarizationVerticalGain0 dBiSizeØ 9.5 x 26 mmConnectorSMA plug (inner thread and pin)Copyright 2014 u-blox AGPage 24 of 55
u-bloxCommentTo be used together with the U.FL to SMA adapter cable (cB-ACC-18 orcB-ACC-48).An alternative Reverse Polarity SMA version antenna is available(PSTG0-2400HRS).ApprovalR&TTEand reLairdPolarizationLinearGain 2.0 dBiSize47.8 x 12.7 x 0.9 mmCablelength100 mmConnectorU.FL. connectorCommentTo be mounted on the U.FLconnector on the PCB.ApprovalFCC, IC, R&TTE and TELECPartNumbercB-ACC-17 / cB-ACC-37Copyright 2014 u-blox AGPage 25 of 55
u-bloxNameReel planTec Bluetooth m70ManufactureREELGain 1.0 dBiSizeØ 75 x 20 mmMountingM16 x 13.6 mmConnectorcB-ACC-17: SMA plug (innerthread and pin)cB-ACC-37: Reverse PolaritySMA plug (inner thread and pinreceptacle)Cablelength300 cm. Other cable lengthsare available on request.CommentcB-ACC-17 is to be usedtogether with the U.FL to SMAadapter cable (cB-ACC-18 orcB-ACC-48).cB-ACC-37 is to be usedtogether with the U.FL toReverse Polarity SMA adaptercable (cB-ACC-38).ApprovalcB-ACC-37: FCC, IC, R&TTEand TELEC.cB-ACC-17: R&TTE.andTELECPartNumbercB-ACC-21Copyright 2014 u-blox AGPage 26 of 55
VerticalGain 2.0 dBiSizeØ 14.3 x 61.4 mmConnectorSMA plug (inner thread and pin)CommentTo be mounted on the U.FL to SMA adapter cable (cB-ACC-18 orcB-ACC-48).A Reverse Polarity SMA version is also available (R380.500.125).ApprovalR&TTEand PolarizationVerticalCopyright 2014 u-blox AGPage 27 of 55
u-bloxGain 2.0 dBiSizeØ 14.3 x 61.1 mmConnectorReverse Polarity SMA plug (inner thread and pin receptacle)CommentThe difference compared to the R380.500.125 antenna is that theR380.500.139 antenna has a seal ring.To be mounted on the U.FL to Reverse Polarity SMA adapter cable(cB-ACC-38).An SMA version antenn
The contents of this document can be changed by u-blox AG without prior notice and do not constitute any binding undertakings from u-blox AG. u-blox AG is not responsible under any circumstances for
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