operational description

FCC ID: GQ4-60T

Operational Description

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FCCID_1917156

TRW Automotive January 22, 2013 GEE 24175 Research Dr. Farmington Hills, MI 48335-2642 Tel 248.478.7210 Fax 248.699.4241 RE: Certification for HKMC MY2013 315MHz MD/UB/UD TPM Sensor Model #: 225816-123 FCC ID: GQ4-60T Canada IC: 1470A-41T GENERAL DESCRIPTION This device is a transmitter/sensor with tire valve, which is mounted in the valve hole of the rim and measures the pressure inside the tire, as well as if the vehicle is in motion. These measurements are then transmitted over Radio Frequency (RF) to a receiver also located in the vehicle. The device also has a Low Frequency (LF) receiver. This receiver supports Low Frequency (LF) magnetic field communications allowing the changing of measurement/monitoring states of the transmitter by commands sent via the TPM diagnostic tool. The RF signal operates at 315MHz and uses FSK Manchester code modulation. Description of Operations Mode of Frequency of Explanation Operation Transmission 4 words when activation Storage Mode No transmission. Measures temperature & pressure occurs with TPM diagnostic tool • 4 words every 200 seconds Measures temperature and pressure. Transmits • 4 words when Normal Mode periodically. Enters this mode from storage when activation occurs pressure goes above threshold. with TPM diagnostic tool Transmits when: 8 words every 4 seconds Alert Mode a) significant pressure delta detected for 1 minute b) high temperature is detected Legal name here


Document Created: 2013-02-21 16:46:16
Document Modified: 2013-02-21 16:46:16
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