FCC ID: KR5CMBTRX1 UWB and BLE tranceiver module

MB_User Manual Mercedes-Benz AG CMBTRX1 Mercedes-Benz AG CMBTRX1 User Manual Continental Automotive GmbH Siemensstrasse 12 93055 Regensburg Germany Page 1 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 Document History Date 16.09.2021 24.09.2021 28.10.2021 Version Changes 1 2 3 initial version chapter 7: corrections of abbreviations chapter 2.7.1: changed UWB protocol standard Page 2 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 Table of Contents 1 GENERALS DESCRIPTION 1.1 1.2 1.3 1.4 1.5 Product Appearence System Functional Description System Overview BLE UWB Digital Access Function Flow Shutdown of the UWB system 1.6 UWB duty cycle limiter 1.7 Parts of Certification 2 FEATURES 2.1 2.2 TRX Radio Device Class Electrical Device Class 2.3 Device XTAL Frequencies and Clocks 2.4 Component Block Diagram 2.5 2.6 Variants Pinning Information; I/O-Port Description 2.7 Radio Features 2.8 Power Supply with Main C 2.9 Antenna Design 3 OTHER NORMS AND INTERFACE FEATURES 4 DIMENSIONS AND CONCEPTS 4.1 Concept 4.2 Housing (TRX) dimensions 4.3 4.4 PCB dimensions Shielding (UWB section) 5 PCB DESIGN 5.1 PCB Layer Information 6 PRODUCT MARKING 6.1 Product Marking CMBTRX 7 TABLE OF ABBREVIATIONS Page 3 of 27 4 4 4 5 5 7 7 7 8 8 8 9 9 10 12 13 14 16 17 18 18 18 19 19 20 21 24 24 24 MB_User Manual Mercedes-Benz AG CMBTRX1 1 Generals Description 1.1 Product Appearence MODEL: CMBTRX1 1.2 System Functional Description The Mercedes-Benz CMBTRX1 is a UWB (Ultra Wide Band) and BLE (Bluetooth Low Energy) transceiver module for car access and user localization purposes. Two CMBTRX1 are mounted in the headliner of the car and four in the front and rear bumpers. They are all connected to a central control unit via CAN interface. The BLE link is used for data exchange between the car and the smartphone or key fob whereas the UWB link is for position detection between them. The system includes at least one smartphone with UWB and BLE functionality and one key fob with the same features. Page 4 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 1.3 System Overview BLE UWB Digital Access 1.4 Function Flow 1.4.1 System Wake up with learned Smartphone The car is in BLE advertisement mode. The learned smart phone is in BLE range and detected. The BLE connection is active (BLE ADV switched off). Check digital key ok. BLE authentification ok. Smartphone and UWB+BLE TRx switch UWB reception on. Smartphone sends one UWB data package to UWB+BLE TRx. UWB+BLE TRx sends UWB response to smartphone. UWB function switch off. 1.4.2 System Wake up with learned Key Fob The learned key fob is in 125kHz range and detected. Localization 125kHz and 434MHz authentification ok. Key fob and UWB+BLE TRx switch UWB reception on. Key fob sends one UWB data package to UWB+BLE TRx. UWB+BLE TRx sends UWB response to key fob. UWB function switch off. Page 5 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 The distance is measured by ToF Measurement TAG: smartphone or key fob Anchor: UWB+BLE TRx with Key Fob with Smartphone Page 6 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 1.5 Shutdown of the UWB system UWB packets may be exchanged when a device needs to be located to execute vehicle features or to establish driving readiness. Once the features execution was completed or driving readiness is established and the vehicle is moving at a certain speed, the UWB system gets inactive after a timeout. The UWB system is disabled in the following additional conditions:

Smartphone or key fob is out of range Smartphone or key fob is detected in range Car is in parking mode System is deactivated with diagnostic command Ignition is ON (any drive mode is active) 1.6 UWB duty cycle limiter To satisfy the EU EN302065-3-1 limits (see picture below) a duty cycle limiter is implemented in the product SW. Several frame counters make sure that frame transmission is muted in case the duty cycle limit would be violated. 1.7 Parts of Certification Variants (placement options) UWB+BLE CMBTRX1 Daisy Chain Manufacturer:

Continental Automotive GmbH Siemensstrasse 12 93055 Regensburg Germany Page 7 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 2 Features The UWB+BLE TRx stand-alone transceiver is a bidirectional BLE and UWB band RF transceiver with integrated antenna, private high-speed CAN communication interface and integrated 12/3V power supply. The electrical wiring of the applications (UWB+BLE and UWB-Only) is optimized for the application in electric vehicles. A corresponding wiring cares for the necessary protection against high voltage overload. In addition, a protective wiring protects the HF-path at the antenna base against ESD-

damage. The output emitted by the transceiver is configurable and calibrated in the final production test. The transceivers are permanently connected to VBatt +12V. If the TRx are deactivated, it's switched to stand-by mode without any reception and transmitting functionality. 2.1 TRX Radio Device Class BLE - low power mid range device for BLE communication with mobile devices. For indoor and outdoor position detection. UWB - low power short range device for outdoor position detection. 2.2 Electrical Device Class Low power device with integrated power management and ISO CAN interface Page 8 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 2.3 Device XTAL Frequencies and Clocks BLE:

32.0 MHz (50 ppm) 32.768 kHz (-300 ppm +100 ppm) 55.2 MHz (15 ppm) UWB:

TVII (main C): 16MHz

(100 ppm) 2.4 Component Block Diagram Page 9 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 2.5 Variants Variants (placement options) UWB+BLE CMBTRX1 Daisy Chain 2.5.1 UWB+BLE (CMBTRX1) 2.5.1.1 PCB TOP CMBTRX1 TOP Page 10 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 2.5.1.2 PCB BOT CMBTRX1 BOT Page 11 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 2.6 Pinning Information; I/O-Port Description 2.6.1 Connector standard with daisy chain, no CAN coding (CMBTRX1) Page 12 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 2.7 Radio Features 2.7.1 UWB Device 1 2 Chip Type UWB Protocol 3 Frequency Bands UWB ATIC234 (NXP VBond), NCJ29D5 Compliant with:

Car Connectivity Consortium Digital Key Release 3 Technical Specification Version 1.0.0 Center frequency CH5 6489.6 MHz CH6 6988.8 MHz CH8 7488.0 MHz CH9 7987.2 MHz 10 dB Bandwidth approx. 580 MHz 4 5 6 7 8 9 10 11 12 13 14 15 FLASH memory (EROM) ROM RAM Flash over Low Power RTC Crystal Clock Antenna Diversity 256 kB 64 kB 32 kB SPI (CAN) n.a. 55,2 MHz yes

(switched diversity) TX: Peak Envelope Power Max. +12 dBm min. 500 MHz TX: Signal Bandwidth UWB TX: Mean Power Spectral Density TX: Peak Power

(RBW=50 MHz) TX: Power settings max. 0 dBm max. -41.3 dBm/MHz 16 TX: Modes 17 RX: Sensitivity (6.8 MBit/s, 64 MHz PRF, 20 Byte PSDU) 18 Maximum antenna gain 4 (depending on packaging position) x2 (separate for each ANT) x4 (separate for each CH) FC1T1ND RRC_0.45_min (CH 5/9) FC1T1ND RRC_0.45_lin(CH 5/9) FC1T2 (CH 5/9) ECO_FC1T1ND (CH 5/6/8/9) CH5: typ. -93,5 dBm CH9: typ -92 dBm CH5 / CH6 / CH8 / CH9 Ant1: 6.8 / 7.0 / 6.5 / 5.4 dBi Ant2: 3.9 / 3.4 / 5.0 / 4.8 dBi Page 13 of 27 CH7 not supported IC HW supports center frequencies in the range of 6.5 8.0 GHz TRX implementation supports IEEE802.15.4 Homologation of channels according to availability Not required ANT selection determined on frame level by protocol or mode setting (tbd) at IC output FCC/ETSI compliant radiated FCC/ETSI compliant radiated FCC/ETSI compliant homologation for stand-alone and metal-plate ANT1 and ANT2 Payload-length 84 byte at ANT footpoint; FC1T2 (CH 5/9) Monopol Antenna MB_User Manual Mercedes-Benz AG CMBTRX1 2.7.2 BLE Device 1 2 3 4 5 6 Chip Type BLE Norm Form ROM RAM EEProm Flash over 7 Low Power RTC 8 9 Crystal Clock 10 BLE Tx Output power 11 Sensitivity 12 Use case 13 Data Rate 14 Maximum antenna gain BLE NXP MKW37A512VFT4 5.0 + LR QFN48_WF 32bit, 256KB Flash + 256KB FlexNVM SRAM 64KB 8KB FlexRAM supp. EEProm Emulation Internal Connector + CAN 32.768kHz 32MHz min. typ. max.

+1.0dBm 1.26mW

+3.0dBm 2.00mW

+5.0dBm 3.16mW LE 1M PHY:

typ. -96dBm min. -90dBm LE Coded PHY with S = 2:

typ. -99dBm min. -93dBm BLE Car Access LE 1M PHY: 1MBit/s LE Coded PHY with S = 2: 500kBit/s CH37 / CH38 / CH39 5.8 / 5.0 / 5.0 dBi 2.8 Power Supply with Main C 2.8.1 Main C Device 1 2 3 4 5 6 7 8 9 10 Chip Type Crystal Clock Internal clock frequencies Form SRAM ROM Code Flash Work Flash EEPROM Flashed by Main C TV II CYT2B73CAS REV-D 16MHz 160MHz M4 core, 100 MHz M0 core QFP64 128KB 32KB 1088KB 96KB 86 J-tag interface production / CAN intnerface 2.8.2 CAN Interface with power supply and C device BLE 5.0 compliant only LE 1M PHY and LE Coded PHY with S = 2 will be used IFA (inverted-F antenna) 32 bit ARM Cortex M4/M0 Nx3225 SBC 1 2 3 4 Chip Type VCC2 VCC1 CAN interface TLE9471 5V 3V3 Full CAN-FD supported 5 Watch Dog Window watch dog 6 BUCK frequency 1MHz CAN supply Internal TRX supply Termination application specific Trggerd by main C (typ 10sec periode), defined by application settings Vbat 12V Page 14 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 2.8.3 BLE internal power supply BLE supply of radio unit: 1.2V, tolerance <1% for an operating voltage of 6V to 16V 2.8.4 BLE Frequency Allocation Page 15 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 2.9 Antenna Design 2.9.1 BLE Antenna (PCB TOP) BLE IFA 2.9.2 UWB Antenna (PCB BOT) UWB Monopole 2 UWB Monopole 1 Page 16 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 3 Other Norms and Interface Features No Parameter Min Typ. Max. Remark Dimension Weight Material IPX ESD Protection RoHs Lead Free (%) Temperatur Area (C)

-40C Voltage Area (V) Current (mA) Connector Type Overvolt Protection @Norm Short circuit @Norm Reverse polarity protection 6 0,1 85.6x39.5x15.3 28 28.4

(CMBTRX1)

(CMBTRX1) PBT GF30

(CMBTRX1) IP5KX, IPX6K, IPX9K

+/-15kVGS95002

((CMBTRX1) DIN 400 50 Part 9 Electrostatic Discharge HBM JEDEC JS-001-

2017

[330Ohm, 150pF]

X 99,9

15 Press fit

<+40V EN 62368-1.

>-40V

+105C 16 CAN FD ISO 500 Depending on use case MCON-6

(CMBTRX1) QV compliant @Norm 10424707_SPE_000_AA COA Platform QV EMC compliant @Norm CE certified 10432948_SPE_000_AA X COA Platform QV EU Interface Count of Pins Fuse (A) CAN Type Baudrate CAN aktiv @ (V) CAN Termination A CAN Termination B 5CAN Interface

6 6 n.a

1A

(CMBTRX1): Power supply by ECU incl. current limitation (MAU) CAN CAN- FD 500kBit/s to 2Mbit/sec

<12>

9K2 Open 16 Voltage area CAN active 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Type Count of different antennas Antenna Diversity Antenna types Printed PCB 3 UWB 2x switchable (UWB), 1x fix (BLE) Only for UWB Page 17 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 4 Dimensions and concepts 4.1 Concept 4.2 Housing (TRX) dimensions Page 18 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 4.3 PCB dimensions 4.4 Shielding (UWB section) Page 19 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 5 PCB Design PCB BOT side (prototype) PCB TOP side (prototype) Page 20 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 5.1 PCB Layer Information all layers shown from TOP side view 5.1.1 Layer 1 - TOP 5.1.2 Layer 2 IN1 Page 21 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 5.1.3 Layer 3 IN2 5.1.4 Layer 4 IN3 Page 22 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 5.1.5 Layer 5 IN4 5.1.6 Layer 6 - BOT Page 23 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 6 Product Marking 6.1 Product Marking CMBTRX 6.1.1 Label 1 7 Table of abbreviations Abbreviation Explanation UWB BLE PCB RAD CoSmA TRx BCM RF NFC HW CAN Ultra Wide Band Blutooth Low Energy Printed Circuit Board Relay Attack Defense Continental Smartphone based Access Transceiver Body Control Module Radio Frequency Near Field Communication Hardware Controller Area Network Page 24 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 Annex 1: Warning statement for Taiwan For low-power radio frequency equipment that has been certified, companies, firms, or users are not allowed to change the frequency, increase the power, or change the characteristics and functions of the original design without approval. The use of low-

power radio frequency equipment must not affect flight safety and interfere with legal communications; if interference is found, it should be stopped immediately and improved to no interference before continuing to use. The aforementioned legal communication refers to radio communication operated in accordance with the provisions of the Telecommunications Administration Law. Low-power radio frequency equipment must endure the interference of legal communications or industrial, scientific and medical radio wave radiation electrical equipment. Annex 2: Statement for Mexico For equipment operated in 902-928MHz, 2400-2483.5MHz, 5725-5850MHz. La operacin de este equipo est sujeta a las siguientes dos condiciones:

1. Es posible que este equipo o dispositivo no cause interferencia perjudicial y 2. Este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la que pueda causar su operacin no deseada. The operation of this equipment is subject to the following two conditions 1. it is possible that this equipment or device may not cause harmful interference, and 2. this equipment or device must accept any interference, including interference that may cause undesired operation. La antena no se puede quitar Antenna can not be detached Annex 3: Statement for CE European Union: Declaration of Conformity Hereby, Continental declares that the radio equipment type CMBTRX1 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address:http://continental-homologation.com/mb Technical information Frequency Band: 6489.6 - 7987.2 MHz Maximum Power: 12 dBm Page 25 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 Manufacturer and Address Manufacturer: Continental Automotive GmbH Address: Siemensstrasse 12, 93055 Regensburg, Germany Phone: +49 941 790-0 Annex 4: Statement for Canada Model: CMBTRX1 IC: 7812D- CMBTRX1 This device complies with Industry Canada license-

exempt RSS standard(s). 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. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes :

(1) l'appareil ne doit pas produire de brouillage, et

(2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Page 26 of 27 MB_User Manual Mercedes-Benz AG CMBTRX1 Annex 5 Statement for USA Model: CMBTRX1 FCC ID: KR5CMBTRX1 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Page 27 of 27

To Whom It May Concern:

FCC ID: KR5CMBTRX1 IC: 7812D- CMBTRX1 FCC 15.19 Labelling requirements This device complies with part 15 of the FCC Rules and Innovation, Science and Economic Development Canada license-exempt RSS standard(s). 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. FCC 15.21 Information to user Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. RF Exposure Requirements To comply with FCC RF exposure compliance requirements, the device must be installed to provide a separation distance of at least 20 cm from all persons. ISED Statements (Canada) Le prsent appareil est conforme aux CNR dISED applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. RF Exposure Requirements This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. Dclaration dexposition aux radiations:

Cet quipement est conforme aux limites dexposition aux rayonnements ISED tablies pour un environnement non contrl. Cet quipement doit tre install et utilis avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps. The above mentioned statements and paragraphs will be placed in a prominent location in the final user manual. To be signed by the Grantee Signature Name Anisoreac Alexandra Company Continental Automotive GmbH Street Siemensstrasse 12 Postal Code / Town 93055 / Regensburg Country Germany Tel Number :+ 40 374 355-013 Email address: Alexandra.Anisoreac@continental-corporation.com

| \is J ABCXXXKXX = \_[ [7 SI FCG-1D:KREXXXXXXX 1G: 78120 -XXXXXXXXXXX Data Matrix Ne IFETEL . XXXXXXXXX-+XXXX Code f {

XXXX-ZG@SXXX SW-Stand YY/WW. PLPL R o NZ &y HW-Stand YY/WW. PLPL as Other howologations See owner manual Production date: YY/MM/DD TRA MSIP-X-X-TAL -XXXXXXX i Eon - SE XKMMXAXKKKK Mercedes-Benz Pp il RERTSTERED No:nonooe ;

A XXX XXX XX XX at [L :

@ XXXXXXXXXXXXXX 2) SS aa UK Wercedes-Benz Parts Logistics:

in te Gis n TA-XXXX/ XXX Delaware Drive, Tongwell KS OY iS APPROVED / Tr \ GQ \nitton keynes, England, Kis 8BA "a FCC ID: KRSCMBTRX1 IC: 7812D-CMBTRX1

To whom it may concern Alexandra Anisoreac VNI CE HW EU2 TSR COE HOM Phone + 40 374 355-013 Alexandra.Anisoreac@continental-

corporation.com Power of Attorney We, Continental Automotive GmbH, Siemensstrae 12, 93055 Regensburg, Germany, hereby authorize the following company/person:

7layers GmbH, Borsigstrae 11, 40880 Ratingen, Germany to act on our behalf for carrying out type approvals in various countries for various products. This appointment is valid until 31.12.2022 or until further written notice by Continental Automotive GmbH. With kind regards ______________________________ Alexandra Anisoreac, Homologation engineer

FCC, Request for non-disclosure RF_501, Issue 8 Date: 21-Nov-2018 Page 1 of 1 Company Name: Continental Automotive GmbH Address:

City:

Country:

Siemensstrasse 12 93055 Regensburg Germany Edisonstraat 12A 6902 PK ZEVENAAR The Netherlands To: Telefication B.V., Dept. FCC TCB Subject: Request for confidentiality FCC ID: KR5CMBTRX1 Reference number: ######

Dear FCC TCB, 1. Long-Term Confidentiality Pursuant to 47 CFR Section 0.459(a) & (b), we hereby requests non-disclosure and confidential treatment of the following materials submitted in support of FCC certification application:

Bill(s) of Material Block Diagrams Operational Description Schematic Diagrams Tune-up Procedure Above materials contain secrets, proprietary and technical information, which would customarily be guarded from competitors under 47 CFR, section 0.457(d)(2). Disclosure or publication or any portion of this company confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. 2. Short-Term Confidentiality (STC) Pursuant to Public Notice DA 04-1705 of the Commissions policy, in order to comply with the marketing regulations in 47 CFR 2.803 and the importation rules in 47 CFR 2.1204, applicant hereby requests Short-Term Confidential treatment of the following materials (See notes below):

Internal Photos Users Manual Test Set-up Photos External Photos Justification: These documents contain detailed system and equipment description and related information about the product, which Continental Automotive GmbH considers to be proprietary. This information should never get into the possession of competitors, which would be harmful for our business Planned Release Date: 180 days Name and signature of applicant: Abdellah Ahakki Date: 04,11,2022 Notes:

1) A document or type of document can only have ONE type of confidentiality!

2) Short-Term confidentiality is in principle for 45 days from date of grant; it can be extended max 3 times (total time 180 days max.)!

The planned date should stated in the RF731 application form. 3) FCC must be informed when marketing begins earlier. 4) Release takes place automatically thus extension must be requested in time. Telefication does not remind you of this!

5) Request for extension or for release must be received by Telefication at least 7 days before date of actual marketing or before expiration of the STC period