Project No Product group Doc description Customer Owner Doc part Document No.
Product Specification and User Manual RFID DESS System Product Specification and User Manual RFID DESS System GEN2 ORIGIN Originator Guy Gingras Date 2020-05-05 Last Modified Martin Goulet Date 2020-05-08 Last modified Alain Lafreniere Date 2020-06-10 RELEASE HISTORY Release Modifications Date Changes made by 1 Initial Release – Based on 1000996039-05 2020-05-05 Guy Gingras 2 Electrical specifications section 4.1.
Product Specification and User Manual RFID DESS System Contents Contents .......................................................................................................................... 2 Figures ............................................................................................................................ 4 Tables ............................................................................................................................. 5 FCC and IC statement......................
Product Specification and User Manual 8 RFID DESS System 7.2 MOWP Variant .................................................................................................. 26 7.3 Performance Criteria ......................................................................................... 31 RF Compliances ...................................................................................................... 32 All information contained herein is confidential and/or proprietary to Kongsberg Inc.
Product Specification and User Manual RFID DESS System Figures Figure 1: RFID Key and Post System............................................................................ 12 Figure 2: RFID DESS System Block Diagram ............................................................... 13 Figure 3: RFID DESS Key Composition ........................................................................ 14 Figure 4: RFID DESS Post - CAN .................................................................................
Product Specification and User Manual RFID DESS System Tables Table 1: Terminology..................................................................................................... 10 Table 2: RFID DESS System Part Numbers ................................................................. 11 Table 3: RFID DESS System Software ......................................................................... 11 Table 4: RFID DESS Post Pinout ........................................................................
Product Specification and User Manual RFID DESS System FCC and IC statement 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.
Product Specification and User Manual RFID DESS System Applicable Standard and Regulations ISO/IEC 15693-1:2000 Identification cards — Contactless integrated circuit(s) cards — Vicinity cards — Part 1: Physical characteristics. ISO/IEC 15693-2:2006 Identification cards — Contactless integrated circuit cards — Vicinity cards — Part 2: Air interface and initialization.
Product Specification and User Manual RFID DESS System IEC 61000-4-2, Edition 2.0, 2008 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test IEC 61000-4-6, Edition 3.
Product Specification and User Manual RFID DESS System References Technical requirement document "TRD-12-0016 Ski-Doo DESS key Rev 2.pdf" Technical requirement document “TRD-18-0019 Ski-Doo DESS POWT MY21.
Product Specification and User Manual RFID DESS System Terminology Terms and abbreviations Description MOWP Megatech One Wire Protocol CAN Controller Area Network ECM Engine Control Module ECU Electronic Control Unit FT Feet Tag ISO15693 compliant transponder Base Station AS3914 chip used to communicate with a tag Antenna Guide for wave transmission PCB Printed Circuit Board Hz Hertz Hall effect sensor Sensor affected by magnetic change.
Product Specification and User Manual RFID DESS System 1 General information This document contains the functional, communication and electrical specifications for the RFID DESS System GEN2. The product is available in two variants of communication interface: a CAN or a MOWP. The MOWP based device replaces previous generation of the RFID Post. For mechanical details, refer to drawing listed in Table 2. Drawing numbers, Kongsberg and customer part numbers are listed in the table below.
Product Specification and User Manual RFID DESS System 2 RFID DESS System Overview The RFID DESS System is composed of 2 parts, the RFID Key and the RFID Post. Details about these are provided in section 2.1and 2.2 respectively. Figure 1: RFID Key and Post System All information contained herein is confidential and/or proprietary to Kongsberg Inc. and any unauthorized disclosure or utilization is expressly prohibited.
Product Specification and User Manual RFID DESS System Figure 2: RFID DESS System Block Diagram The vehicle ECU powers the RFID Post from the positive switched battery connection (KL15). Once powered, the RFID Post senses the RFID Key’s magnet using its internal hall sensor. The hall sensor’s output is pulled low if a magnetic field is sensed, allowing the vehicle engine to start.
Product Specification and User Manual RFID DESS System Figure 3: RFID DESS Key Composition 2.2 RFID DESS Post As illustrated in Figure 4 and Figure 5, the Post is composed of a plastic cover, an O-ring, a main PCB, a header, a secondary PCB and a plastic housing. The plastic cover, plastic housing and O-ring protect the internals from the external environment. The cover provides a mechanical mating interface for a connector. The CAN variant has a 5-pin connector, the MOWP variant has a 4-pin connector.
Product Specification and User Manual RFID DESS System The secondary PCB is mounted to the main PCB using a 3-pin header. The secondary PCB holds the hall sensor. The main PCB holds the remaining electronics needed for operation: power supply, microcontroller, communication transceiver, contact output circuitry, RFID initiator/reader and antenna. Figure 4: RFID DESS Post - CAN Figure 5: RFID DESS Post - MOWP All information contained herein is confidential and/or proprietary to Kongsberg Inc.
Product Specification and User Manual RFID DESS System 3 RFID DESS Functional Specification 3.1 Bidirectional Communication 3.1.1 CAN variant The RFID Post is designed to exchange information via CAN protocol with the ECU. 3.1.2 MOWP variant The RFID Post is designed to exchange information via Maxim 1-Wire protocol with the ECU. It is also possible to communicate with the module using a MPI2.5 CAN-to-MOWP converter for diagnostics purposes. 3.
Product Specification and User Manual RFID DESS System Start Init yes Debug mode Debug? Erase key no RFID wait no Magnet? yes Key saved? yes no Init ISO Monitoring Read key Reset yes Max retry? no no Key found? yes Save EEPROM Save key Deinit ISO Figure 6: UID Reading Sequence. All information contained herein is confidential and/or proprietary to Kongsberg Inc. and any unauthorized disclosure or utilization is expressly prohibited.
Product Specification and User Manual RFID DESS System 4 RFID DESS Electrical Specification 4.1 Connector The electrical connection between the RFID Post shall use the sealed connector Delphi GT 150 series. Refer to product drawing for more details. Figure 7: CAN Variant Connector Figure 8: MOWP Variant Connector The following table outlines the RFID Post’s pinout.
Product Specification and User Manual RFID DESS System 4.1.1 Pin A: GND This pin is used as the RFID Post power return, to be connected to the vehicle’s main ground. Characteristic Unit Minimum Nominal Maximum Voltage, absolute maximum rating (steady state) V -18 --- 18 Table 5: GND Characteristics. 4.1.2 Pin B: CONTACT This pin is used as an engine cut-off signal, pulled low to activate engine.
Product Specification and User Manual RFID DESS System 4.1.4 Pin C: 1-WIRE / MOWP This pin is used for communication with an ECM or a diagnostic tool. Characteristic Unit Minimum Nominal Maximum Voltage, absolute maximum rating (steady state) V -18 --- 18 Voltage, operating V Logic level V 5 Low: 1.45 --- High: 3.25 Table 8: 1-WIRE / MOWP Characteristics. 4.1.
Product Specification and User Manual RFID DESS System 5 RF Specifications The RFID Post has the following RF performance over temperature. Characteristic Unit Minimum Nominal Maximum RF Output Power W 0 --- 0.4 Operating Frequency MHz 13.55 13.56 13.57 Frequency Stability ppm -90 - +90 Table 11: RF Characteristics The antenna is built-in the PCB and cannot be replaced without modifying the PCB. No external antenna can be connected to this device.
Product Specification and User Manual RFID DESS System 6 Localization and Installation on Vehicle The RFID DESS System shall be installed as the previous DESS System generation. The RFID Post should be secured to the vehicle’s body using the Post retaining ring 278 002 963. The Post’s sphere and thread must protrude out of the vehicle’s body and be accessible by the operator, while the Post’s main body shall be inside the vehicle’s body. Figure 9: Example of Vehicle Installation 6.1 Metallic Materials.
Product Specification and User Manual RFID DESS System Recommended clearance zone Figure 10: Recommended Clearance Zone for Metallic Material All information contained herein is confidential and/or proprietary to Kongsberg Inc. and any unauthorized disclosure or utilization is expressly prohibited. The information is legally safeguarded by digital fingerprints and offenders will be held liable for any damages suffered. All rights and/or title to any intellectual property are reserved.
Product Specification and User Manual RFID DESS System 6.2 Noise Sources Identifications The RFID Post shall be located away from vehicle radiated sources. A minimum of 15 cm in any direction between a radiated noise source and the RFID DESS System is recommended. This intended position shall be validated in any new vehicle or configuration change, using the diagnostic tool described in section 7.
Product Specification and User Manual RFID DESS System 7 Diagnostic Tool KA has designed a tool to analyze performance using the RFID Post. This tool allows the monitoring of performance of the RF transmission between the RFID Key and Post in real time. This tool can be used to diagnose conducted noise, radiated noise or transmission perturbations due to proximity of metallic materials.
Product Specification and User Manual RFID DESS System 7.2 MOWP Variant Figure 11: RFID Diagnostic Tool The diagnostic tool reads the RFID tag every 30 ms. In case of reading error, the probe wire will be pulled low during a period of 30 ms. The probe wire can be monitored using an oscilloscope having a minimum bandwidth of 100 MHz. All information contained herein is confidential and/or proprietary to Kongsberg Inc. and any unauthorized disclosure or utilization is expressly prohibited.
Product Specification and User Manual RFID DESS System Figure 12: Example of probe wire output At power up, the RFID diagnostic tool will send the RFID tag’s UID over the 1-wire interface. This last approximately five (5) seconds. During this period, the switch allows a temporary connection of the 1-Wire output to the vehicle’s ECU for it to authenticate the RFID Key. This allows testing while the vehicle is normal operation.
Product Specification and User Manual RFID DESS System 7.2.1 Radiated Noise Validation The main purpose of this validation is to determine whether the RFID DESS System is in the presence of a radiated noise source that could potentially affect the transmission of the RF transmission between the RFID Key and Post. The vehicle under test shall be started in regular operation. The RF Diagnostic tool should be connected as shown in the Figure 13. Figure 13: Configuration for Radiated Noise Validation.
Product Specification and User Manual RFID DESS System Once the system is powered-up and the vehicle is started, the diagnostic tool can be used to monitor whether noise sources could be affecting the performance of the RFID DESS System. The document 000004 FO-QA-029-KA SKIDOO TUNDRA 600 ETEC Radiation Problems, can be used as guidance for measurement or noise source identification. 7.2.
Product Specification and User Manual RFID DESS System Figure 14: Configuration for Noise Validation Performance Once the system is powered-up and the vehicle is started, the diagnostic tool can be used to monitor whether conducted noise could be affecting the performance of the RFID signal.
Product Specification and User Manual RFID DESS System 7.3 Performance Criteria It is recommended that no errors should be observed during the period of 1 minute (59400 transmissions) to validate that no perturbations could affect the RF performance of any RFID DESS System. All information contained herein is confidential and/or proprietary to Kongsberg Inc. and any unauthorized disclosure or utilization is expressly prohibited.
Product Specification and User Manual RFID DESS System 8 RF Compliances Industry Canada This device complies with RSS-GEN and RSS-210 of Industry Canada. Cet appareil est conforme au CNR-GEN et CNR-210 d'Industrie Canada. FCC The following device is in compliance with FCC part 15C. Warning to the user: Any changes /modifications not approved by the manufacturer could void the user’s authority to operate the equipment.
