MRXG43MA4STire pressure sensor

Re: Certification for Schrader Transmitter Model/PN(s): 25920615 FCC ID: MRXG43MA4S IC: 2546A-G43MA4S The device under test is manufactured by the grantee (Schrader) and sold as an OEM product. Per 47 CFR 2.909, 2.927, 2.931, 2.1033, 15.15(b) etc..., the grantee must ensure the end-user has all applicable / appropriate operating instructions. When end-user instructions are required, as in the case of this product, the grantee must notify the OEM to notify the end-user. Schrader will supply the following information to the reseller/distributor dictating what must be included in the end user’s manual for the commercial product. INFORMATION TO BE INCLUDED IN THE END USER'S MANUAL The following information must be included in the end product user’s manual to ensure continued FCC and Industry Canada regulatory compliance. The ID numbers must be included in the manual if the device label is not readily accessible to the end user. The compliance paragraphs below must be included in the user's manual. ************************************************************************ FCC ID:MRXG43MA4S IC: 2546A-G43MA4S 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. ************************************************************************

GM08 Block Diagram Pressure Sensor ASIC 32kHz RF Circuit 315 MHz Valve Stem Antenna Lithium Battery LF Transponder Shock Sensor

Re: Certification for Schrader Transmitter FCC ID: MRXG43MA4S IC: 2546A-G43MA4S REQUEST FOR CONFIDENTIALITY Pursuant to 47 CRF 0.457(d) and 0.459, Schrader requests that a part of the subject FCC application be held confidential. Type of Confidentiality Requested Exhibit Short Term Permanent (1) ID Label & Location Short Term Permanent (3) External Photos Short Term Permanent (4) Block Diagram Short Term Permanent (5) Schematics Short Term Permanent (7) Test Setup Photos Short Term Permanent (8) User’s Manual Short Term Permanent (DUT is potted) (9) Internal Photos Short Term Permanent (10) Parts List & Placement Short Term Permanent (11) RF Exposure Short Term Permanent (12) Description of Operation 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. Permanent Confidentiality: Schrader requests the exhibits listed above as permanently confidential be permanently withheld from public review. Short-Term Confidentiality: Schrader requests the exhibits selected above as short term confidential be withheld from public view for a period of 45 days from the date of the Grant of Equipment Authorization and prior to marketing. 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

American TCB 6731 Whittier Ave. McLean, VA 22101 Acknowledgement of IC Listing Requirements By signing this document, we acknowledge that any information specified on the ATCB Application and Agreement Form for Industry Canada Certification Services provided with this application may be provided to Industry Canada. We acknowledge that this information may be posted in the Radio Equipment List (REL) on the Department's Web Site. Additionally, we understand that we must inform ATCB of any changes to the information submitted. We further acknowledge that the Certified product shall not be distributed, leased, or offered for sale in Canada prior to its listing on the Industry Canada Radio Equipment List (REL). We are aware that we may verify the status of this listing at the following web address: http://strategis.ic.gc.ca/cgi-bin/sc_mrksv/spectrum/reltelSearch/search.pl?lang=e&db=rel Dated this 15 day of March, 2007 By: ___________ _____________ __Adrian Condon (Signature) (Print name) Title: _EMC & Approvals Team Leader_ _____________ _ email: [email protected]_ On behalf of: ___ Schrader Electronics _______ (Company Name) Telephone: __ 0044 2894483073 ___ Federal Communications Commission Applications Processing Branch 7435 Oakland Mills Road Colombia, MD 21046 Re: Letter of Agency for FCC Compliance Testing Please be advised that Schrader Electronics authorizes Professor Valdis V. Liepa of the University of Michigan, Department of Electrical Engineering and Computer Science, Ann Arbor, Michigan, to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification. Anti-Drug Abuse Certification: I further certify that no party (as defined in 1.2002 of CFR47, 1992) to this application, including myself, is subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti Drug Abuse Act of 1988, 21 U.S.C. 853(a). Dated this 15 day of March, 2007 By: ___________ _____________ __Adrian Condon (Signature) (Print name) Title: _EMC & Approvals Team Leader_ _____________ _ email: [email protected]_ On behalf of: ___ Schrader Electronics _______ (Company Name) Telephone: __ 0044 2894483073 ___ American TCB 6731 Whittier Ave. McLean, VA 22101 Attn: Director of Certification Authority to Act as Agent I appoint Valdis V. Liepato act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in Industry Canada’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by American TCB, still resides with Schrader Electronics Ltd, 11 technology Park, Belfast Road, Antrim, N. Ireland BT41 1QS. Agency Agreement Expiration Date: (optional) Dated this 15 day of March, 2007 By: ___________ _____________ __Adrian Condon (Signature) (Print name) Title: _EMC & Approvals Team Leader_ _____________ _ email: [email protected]_ On behalf of: ___ Schrader Electronics _______ (Company Name) Telephone: __ 0044 2894483073 ___

Tire Pressure Sensor 1/10/06 Component Technical Specification TPMS CTS ComArch 4_1 (LATEST) FOR MY07 SNAP-IN.doc4_1 17 State Pressure Sample Interval (seconds) Stimulus Transmit Mode Transmit Interval (seconds) Transmit # Frames Off 30 ΔP ≥69 kPa (+/-) Exiting Off Single event, when required 3 LF Activation Exiting Off 16 ≥17 G Accel None 0 Stationary 30 ΔP ≥8.25 kPa Learn-Pressure Triggered Single event, when required 6 LF Activation Learn-LF Triggered 16 LF Activation (TBD) Entering Off 3 ≥17 G Accel Rolling 6 Rolling 30 + Rolling Delay Value ΔP ≥8.25 kPa Re-Measure Single event, when required 6 ≥17 G Accel Rolling Every 10 sec (First 15 times); Every 2 nd sample 6 <17 G Accel None 0 Alert Stationary 1 ΔP ≥8.25 kPa Learn-Pressure Triggered Single event, when required 6 LF Activation Learn-LF Triggered 16 ≥17 G Accel None N/a 0 Alert Rolling 1 ΔP ≥8.25 kPa Re-Measure Single event, when required 6 <17 G Accel None n/a 0 3.2.1.5.1. OFF STATE The TPS shall provide an Off State where no transmission occurs and pressure sampling occurs once every 30 seconds. Sensors shall leave the supplier’s factory in the Off State and should remain in that condition until activated into another valid mode. 3.2.1.5.1.1. EXITING OFF MODE – PRESSURE DELTA The sensor shall exit Off State when a pressure change of at least 69kPa is sensed, transmit an ‘Exiting Off’ Mode message, and transition into the Stationary State. Every time the sensor exits the Off Mode, it shall calculate a Rolling Delay Value (calibratable value between 0 and 2 seconds in 10 millisecond increments; default value of 0 seconds) that will apply to both the measurement and the transmission intervals in the Rolling Mode. The sensor shall retain that value until it enters Off Mode again. 3.2.1.5.1.2. EXITING OFF MODE – LF TRANSMISSION The sensor shall exit the Off State when a valid LF transmission is received, transmit an ‘Exiting Off’ Mode message, and transition into the Stationary State. The ‘Exiting Off’ Mode message may be followed by a ‘Learn Mode – LF Triggered’ message. Tire Pressure Sensor 1/10/06 Component Technical Specification TPMS CTS ComArch 4_1 (LATEST) FOR MY07 SNAP-IN.doc4_1 18 A valid LF transmission shall be defined as a 125kHz continuous-tone RF signal with a field strength of 5 A/m measured 150 mm from the source. The TPS shall transmit a ‘Learn Mode – LF Triggered’ Mode message within 0.5 to 5.0 seconds (calibratable; default value 2.5 seconds) of exposure to the 125kHz field. Every time the sensor exits the Off Mode, it shall calculate a Rolling Delay Value (calibratable value between 0 and 2 seconds in 10 millisecond increments; default value of 0 seconds) that will apply to both the measurement and the transmission intervals in the Rolling Mode. The sensor shall retain that value until it enters Off Mode again. 3.2.1.5.1.3. ACCELEROMETER INPUT The sensor shall ignore all accelerometer inputs while in the Off State, to avoid inadvertent wakeup. 3.2.1.5.2. STATIONARY STATE The TPS shall provide a Stationary State where pressure sampling occurs every 30 seconds. 3.2.1.5.2.1. ROLLING MODE The TPS shall exit Stationary State when it detects a rotational g-force that exceeds 17 G (roughly 40 kph on an 18” wheel.) Upon exiting Stationary State in this way, the TPS shall transmit a ‘Rolling’ Mode message no sooner than 30 seconds since its last transmission (immediately if possible), and transition into the Rolling State. 3.2.1.5.2.2. LEARN MODE – LF TRIGGERED When a valid LF transmission is received, the TPS shall transmit a ‘Learn Mode – LF Triggered’ Mode message, and remain in the Stationary State. 3.2.1.5.2.3. LEARN MODE – PRESSURE TRIGGERED If, during any measurement sample, the current pressure sample is different by ± 8.25kPa (minimum) from the last transmitted pressure value, a data re-measurement shall occur immediately. If the pressure has indeed changed, the sensor shall transmit a ‘Learn Mode – Pressure Triggered’ Mode message, and transition into the Alert Stationary State. 3.2.1.5.3. ROLLING STATE The TPS shall provide a Rolling State where pressure sampling occurs every 30 seconds and pressure transmission occurs with every 2 nd pressure sample. For the first 15 transitions from the Stationary State to the Rolling State, the sensor shall transmit pressure at least once every 10 seconds. This transition counter shall reset after every Learn Mode – LF Triggered message is sent. The TPS shall exit Rolling State when it detects a rotational g-force that is less than 17 G (roughly 40 kph on an 18” wheel), and transition into the Stationary State. 3.2.1.5.3.1. RE-MEASURE DATA MODE If, during any measurement sample, the current pressure sample is different by ± 8.25kPa (minimum) from the last transmitted pressure value, a data re-measurement shall occur immediately. If the pressure Tire Pressure Sensor 1/10/06 Component Technical Specification TPMS CTS ComArch 4_1 (LATEST) FOR MY07 SNAP-IN.doc4_1 19 has indeed changed, the sensor shall transmit a ‘Re-Measure Data’ Mode message, and transition into the Alert Rolling State. 3.2.1.5.4. ALERT STATIONARY STATE The TPS shall provide an Alert Stationary State where pressure sampling occurs every 1 second for a period of 8 seconds and ‘Learn Mode – Pressure Triggered’ transmission occurs when the current pressure sample is different by ± 8.25kPa (minimum) from the last transmitted pressure value. With every pressure transmission, the sensor shall start a new 8-second period of pressure sampling. If the pressure does not change during an 8-second interval, the sensor shall return to the Stationary State. The TPS shall exit Alert Stationary State when it detects a rotational g-force that is greater than 17 G (roughly 40 kph on an 18” wheel), transition into the Alert Rolling State, and begin a new 8-second period of sampling. 3.2.1.5.4.1. LEARN MODE – LF TRIGGERED When a valid LF transmission is received, the TPS shall transmit a ‘Learn Mode – LF Triggered’ Mode message a…

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University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/GEN - Test Report No. 415031-380 Page 1 of 11 The University of Michigan Radiation Laboratory 3228 EECS Building Ann Arbor, MI 48109-2122 Tel: (734) 764-0500 Measured Radio Frequency Emissions From Schrader TPM Transmitter FCC ID: MRXG43MA4S Model/PN(s): 25920615 Report No. 415031-380 September 10, 2007 Copyright © 2007 For: Schrader Electronics Limited 11 Technology Park, Belfast Road, Antrim BT41 1QS, Northern Ireland Contact: Adrian Condon, [email protected] Tel: +44 (0) 28 9448 3073 Fax: +44 (0) 28 9446 8440 PO: Verbal Tests supervised by: Measurements made by: Valdis V. Liepa Report approved by: _____________________ Valdis V. Liepa Test Report Prepared by: Joseph D. Brunett Research Scientist Summary Tests for compliance with FCC Regulations Part 15, Subpart C, and Industry Canada RSS-210/GEN, were performed on Schrader model/PN(s) 25920615. This device is subject to the Rules and Regulations as a Transmitter. In testing completed on September 7, 2007, the device tested in the worst case met the allowed FCC specifications for radiated emissions by 8.6 dB (see p. 6). Besides harmonics, there were no other significant spurious emissions found; emissions from digital circuitry were negligible. The conducted emission tests do not apply, since the device is powered from a 3 VDC battery. University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/GEN - Test Report No. 415031-380 Page 2 of 11 1. Introduction Schrader model/PN(s) 25920615 was tested for compliance with FCC Regulations, Part 15, adopted under Docket 87-389, April 18, 1989 as subsequently amended, and with Industry Canada RSS-210/Gen, Issue 7, June 2007. The tests were performed at the University of Michigan Radiation Laboratory Willow Run Test Range following the procedures described in ANSI C63.4-2003 "Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz". The Site description and attenuation characteristics of the Open Area Tes Site are on file with FCC Laboratory, Columbia, Maryland (FCC Reg. No: 91050) and with Industry Canada, Ottawa, ON (File Ref. No: IC 2057A-1). 2. Equipment Used The pertinent test equipment commonly used in our facility for measurements is listed in Table 2.1 below. The middle column identifies the specific equipment used in these tests. Table 2.1 Test Equipment. Test Instrument Eqpt. Used Manufacturer/Model Spectrum Analyzer (0.1-1500 MHz) Hewlett-Packard, 182T/8558B Spectrum Analyzer (9kHz-22GHz) X Hewlett-Packard 8593A SN: 3107A01358 Spectrum Analyzer (9kHz-26GHz) X Hewlett-Packard 8593E, SN: 3412A01131 Spectrum Analyzer (9kHz-26GHz) Hewlett-Packard 8563E, SN: 3310A01174 Spectrum Analyzer (9kHz-40GHz) Hewlett-Packard 8564E, SN: 3745A01031 Power Meter Hewlett-Packard, 432A Power Meter Anritsu, ML4803A/MP Harmonic Mixer (26-40 GHz) Hewlett-Packard 11970A, SN: 3003A08327 Harmonic Mixer (40-60 GHz) Hewlett-Packard 11970U, SN: 2332A00500 Harmonic Mixer (75-110 GHz) Hewlett-Packard 11970W, SN: 2521A00179 Harmonic Mixer (140-220 GHz) Pacific Millimeter Prod., GMA, SN: 26 S-Band Std. Gain Horn S/A, Model SGH-2.6 C-Band Std. Gain Horn University of Michigan, NRL design XN-Band Std. Gain Horn University of Michigan, NRL design X-Band Std. Gain Horn S/A, Model 12-8.2 X-band horn (8.2- 12.4 GHz) Narda 640 X-band horn (8.2- 12.4 GHz) Scientific Atlanta , 12-8.2, SN: 730 K-band horn (18-26.5 GHz) FXR, Inc., K638KF Ka-band horn (26.5-40 GHz) FXR, Inc., U638A U-band horn (40-60 GHz) Custom Microwave, HO19 W-band horn(75-110 GHz) Custom Microwave, HO10 G-band horn (140-220 GHz) Custom Microwave, HO5R Bicone Antenna (30-250 MHz) X University of Michigan, RLBC-1 Bicone Antenna (200-1000 MHz) X University of Michigan, RLBC-2 Dipole Antenna Set (30-1000 MHz) X University of Michigan, RLDP-1,-2,-3 Dipole Antenna Set (30-1000 MHz) EMCO 2131C, SN: 992 Active Rod Antenna (30 Hz-50 MHz) EMCO 3301B, SN: 3223 Active Loop Antenna (30 Hz-50 MHz) EMCO 6502, SN:2855 Ridge-horn Antenna (300-5000 MHz) X University of Michigan Amplifier (5-1000 MHz) X Avantak, A11-1, A25-1S Amplifier (5-4500 MHz) X Avantak Amplifier (4.5-13 GHz) Avantek, AFT-12665 Amplifier (6-16 GHz) Trek Amplifier (16-26 GHz) Avantek LISN Box University of Michigan Signal Generator Hewlett-Packard 8657B University of Michigan Radiation Laboratory FCC Part 15, IC RSS-210/GEN - Test Report No. 415031-380 Page 3 of 11 3. Configuration and Identification of Device Under Test (DUT) 3.1 Design and Identification of the Device The DUT was designed and manufactured by Schrader Electronics Limited, 11 Technology Park, Belfast Road, Antrim BT41 1QS, Northern Ireland. It is identified as: Schrader TPMS Transmitter Model/PN(s): 25920615 FCC ID: MRXG43MA4S IC: 2546A-G43MA4S 3.2 Models There is only a single model of the DUT. Both CW and normal operating modules were supplied by the manufacturer for testing. 3.3 Modes of Operation The DUT periodically transmits tire pressure data. The device is also capable of being automatically actuated (via LF interrogation) either by in-vehicle LF initiators or by trained personnel during servicing. Per FCC correspondence, service modes fall under FCC part 15.231(a)(5). Figure 6.1 demonstrates compliance with both 15.231(e) and (a)(5). A list of all operating modes is included in the Description of Operation exhibit. 3.4 EMI/EMC Relevant Modifications There were no modifications made to the DUT by this laboratory. 4. Regulatory Limits The DUT tested falls under the category of an Intentional Radiators and the Digital Devices. For FCC, it is subject to Part 15, Subpart C (Section 15.231(a),(c), & (e),15.209) and Subpart A (Section 15.33). For Industry Canada it is subject to RSS-210 (2.6, 2.7). The applicable testing frequencies with corresponding emission limits are given in Tables 4.1 and 4.2 below. 4.1 Radiated Emission Limits Table 4.1. General Radiated Emission Limits (FCC: 1…

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