KR5S120092001Tire Pressure Monitoring Transmitter

Re: Certification for Siemens VDO Transmitter Model: S120092001 FCC ID: KR5S120092001 IC: 267T-20092001 USER'S MANUAL INFORMATION (PRELIMINARY) The User's Manual is in preparation. The following material will be contained in the manual: FCC ID: KR5S120092001 IC: 267T-20092001 This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. 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. WARNING: Changes or modifications not expressively approved by the party responsible for compliance could void the user's authority to operate the equipment. The term “IC:” before the radio certification number only signifies that Industry Canada technical specifications were met.

Re: Certification for Siemens VDO Transmitter Model: S120092001 FCC ID: KR5S120092001 IC: 267T-20092001 POWER OF ATTORNEY A letter granting Valdis V. Liepa the Power of Attorney is on file and can be provided when so requested. Re: Certification for Siemens VDO Transmitter Model: S120092001 FCC ID: KR5S120092001 IC: 267T-20092001 REQUEST FOR CONFIDENTIALITY Pursuant to 47 CRF 0.459, Siemens VDO requests that a part of the subject application be held confidential. This comprises Exhibits (5) Schematics (10) Parts List (Part of Exhibit only) Siemens VDO has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. If there are any questions regarding this request, please contact me at the above address or call 734-483-4211, fax 734-647-2106 or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist University of Michigan May 23, 2003 Re: Certification for Siemens VDO Transmitter Model: S120092001 FCC ID: KR5S120092001 IC: 267T-20092001 STATEMENT OF MODIFICATIONS There were no modifications made to the DUT by this test laboratory. (Also see Section 3.1 of the attached Test Report). _____________________ Valdis V. Liepa Research Scientist Re: Certification for Siemens VDO Transmitter Model: S120092001 FCC ID: KR5S120092001 IC: 267T-20092001 GENERAL PRODUCT INFORMATION The device, for which certification is pursued, has been designed by: Siemens VDO Automotive AG Siemensstrasse 12 SVC CE AIS LF Regensburg, Germany Kevin Cotton Tel: (248) 764-6771 Fax: (248) 764-7171 It will be manufactured by: Siemens VDO Automotive AG Siemensstrasse 12 SVC CE AIS LF Regensburg, Germany Kevin Cotton Tel: (248) 764-6771 Fax: (248) 764-7171 Canadian Contact: Siemens Automotive Ltd. 2775 St. Etienne Boulevard Windsor ,ON N8W 5B1 Kurt Van Drus [email protected] 1(519)974-5400 1(519)974-5401

4. BLOCK DIAGRAM The block diagram below shows the main electronic units of the wheel unit: RF CIRCUITμcontroller 3V LITHIUM BATTERY VALVE Learning coil Pressure, temperature and acceleration senso r 9.844 MHz Crystal 315 MHz RLC

May 23, 2003 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 RE: Certification Application FCC ID: KR5S120092001 Please find enclosed application materials for certification of Siemens VDO Transmitter. Note: 1) portions of this submittal are filed Confidential 2) a list of the modifications made is provided in Attestations. If there are any questions regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647-2106, or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist

May 23, 2003 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Re: Certification for Siemens VDO Transmitter Model: S120092001 FCC ID: KR5S120092001 IC: 267T-20092001 Please find enclosed application materials for certification of Siemens VDO S120092001 Transmitter. We tested it and found it to comply with FCC Part 15. If there are any questions regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647-2106, or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist May 23, 2003 Certification and Engineering Bureau Industry Canada 3701 Carling Avenue, Bldg. 94 Ottawa, Ontario K2H 8S2 Re: Certification for Siemens VDO Transmitter Model: S120092001 FCC ID: KR5S120092001 IC: 267T-20092001 Please find enclosed application materials for certification of Siemens VDO S120092001 Transmitter. We tested the device and found it to comply with RSS-210. The product is identified by: IC: 267T-20092001 If there are any questions, suggestions, etc., regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647- 2106; e-mail: [email protected]. Sincerely, Valdis V. Liepa Research Scientist

SIEMENS VDO Automotive AGSV C CE AIS LF 1 . SYSTEM OVERVIEW The tire pressure monitoring system (referred as TG for Tire Guard) consists of the following units : - Tire guard wheel unit type S120092001 which includes an integrated pressure, temperature and acceleration sensor and a 315 MHz RF transmitter. - RF receiver unit which includes a 315 MHz receiver (not describled in this document). The TG monitors a vehicle's tire pressure whilst driving or stationary. An electronic unit (wheel unit) inside each tire, mounted to the valve stem, periodically measures the actual tire pressure. By means of RF communication, this pressure information is transmitted to the RF receiver/decoder. In stationary mode, the pressure, temperature and acceleration are measured about every minute and emission of RF frames occurs only if pressure variation, higher than a threshold, is detected (leakage detection). When the vehicle starts moving, the TG wheel unit enters the driving mode. It measures and transmits RF burst 3 times per minute (with 18 s then 18 s and 24 s interframe = 1minute) up to 30 bursts. After this period the wheel unit measures and transmits data every minute. The wheel unit will remain in driving mode for a period of 15 minutes after the vehicle is stopped. After this period has elapsed the wheel unit returns to stationary mode. If, during any measurement period in driving mode, the current press ure sample is different by +/- 68.5 mbar from the last transmitted pressure value, a re - measure will occur after 6s taking in account the latest pressure value emitted as reference value. If the pressure continues changing, an additional transmission will be sent. The circuit within the wheel unit monitors the battery every time a pressure measurement is taken. A “Low Battery” function code will be sent when the battery voltage within the wheel unit is below a pre -selected level.

10 Appendix: DUT on OATS Appendix: Close-up of the DUT on OATS