MRX2T315AMARemote Tire Pressure Sensor

Re: Certification for Schrader 315AM Transmitter Model: 315AM FCC ID: MRX2T315AMA IC: 2546A-2T315AMA USER'S MANUAL INFORMATION (PRELIMINARY) The User's Manual is in preparation. The following material will be contained in the manual: FCC ID: MRX2T315AMA IC: 2546A-2T315AMA 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 Schrader 315AM Transmitter Model: 315AM FCC ID: MRX2T315AMA IC: 2546A-2T315AMA REQUEST FOR CONFIDENTIALITY Pursuant to 47 CRF 0.459, Schrader requests that a part of the subject application be held confidential. This comprises Exhibits (5) Schematics (10) Parts List (Part of Exhibit only) Schrader 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 June 29, 2003 Re: Certification for Schrader 315AM Transmitter Model: 315AM FCC ID: MRX2T315AMA IC: 2546A-2T315AMA 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 Schrader 315AM Transmitter Model: 315AM FCC ID: MRX2T315AMA IC: 2546A-2T315AMA GENERAL PRODUCT INFORMATION The device, for which certification is pursued, has been designed by: Schrader Electronics Limited 11, Technology Park, Belfast Road, Antrim BT41 1QS, Northern Ireland Paul Daly Tel: (44) 028 94 482115 Fax: (44) 028 94 468440 It will be manufactured by: Schrader Electronics Limited 11 Technology Park, Belfast Road Antrim BT41 1QS, Northern Ireland Paul Daly Tel: (44) 028 94 482115 Fax: (44) 028 94 468440 Canadian Contact: Gates Rubber Company, 3303 St. Etienne Boulevard, Windsor, Ontario. N8W 5B1 Canada Rick Gatti - 313 962 1711 Re: Certification for Schrader 315AM Transmitter Model: 315AM FCC ID: MRX2T315AMA IC: 2546A-2T315AMA POWER OF ATTORNEY A letter granting Valdis V. Liepa the Power of Attorney is on file and can be provided when so requested.

ROLL RF CIRCUIT ASIC 3V LITHIUM BATTERY VALVE LEARN PRESSURE SENSOR 1MHz A-D 32.786KHz ASIC System Clk

Modes of Operation.xls Mode of OperationExplanationFrequency of Transmission Roll Mode Transmitter in normal operation - wheel is rotating and roll switch is closed 8 words every 60 seconds Service Period Transmit 8 words once every 60 seconds for app 15 minutes after vehicle stops. 8 words every 60 seconds Learn ModeTransmits 40 words after magnetic or transponder activation40 words for 1 transmission Factory Mode. Transmitter is in Factory mode for the next 16 Roll Switch closures after a Learn activation - The Wheel has to be rotating (roll switch closed) 8 words every 30 seconds. Stationary Mode Transmitter enters mode after Service Period - Wheel is not rotating - Vehicle is stopped. 8 words once every 60 minutes. Schrader Electronics Ltd. Confidential 6/29/2003Page 1

June 29, 2003 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 RE: Certification Application FCC ID: MRX2T315AMA Please find enclosed application materials for certification of Schrader 315AM 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

June 29, 2003 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Re: Certification for Schrader 315AM Transmitter Model: 315AM FCC ID: MRX2T315AMA IC: 2546A-2T315AMA Please find enclosed application materials for certification of Schrader 315AM 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 June 29, 2003 Certification and Engineering Bureau Industry Canada 3701 Carling Avenue, Bldg. 94 Ottawa, Ontario K2H 8S2 Re: Certification for Schrader 315AM Transmitter Model: 315AM FCC ID: MRX2T315AMA IC: 2546A-2T315AMA Please find enclosed application materials for certification of Schrader 315AM Transmitter. We tested the device and found it to comply with RSS-210. The product is identified by: IC: 2546A-2T315AMA 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