Continental Automotive User Manual / Functional Description of the Continental Tire Pressure Wheel Unit Type TIS-04-ASK 315MHz 1 of 5 Continental Automotive 1. SYSTEM OVERVIEW Tire pressure monitoring system (called also TG for Tire Guard) is composed by:
- a tire guard wheel unit including an integrated pressure, temperature and acceleration sensor and a RF transmitter.
- a RF receiver unit (not described in this document) TG monitors the pressure of vehicle tire when driving or when it is stopped. An electronic unit
(wheel unit) mounted inside the tire periodically measures the current pressure. Thanks to a RF link, this pressure information is transmitted to the RF receiver/decoder. 2. TECHNICAL DESCRIPTION Carrier frequency:
Frequency FSK deviation:
Number of channels:
Type of modulation:
Baud rate:
Rated Output Power:
Antenna:
Voltage supply:
Voltage supply range:
3. TYPICAL USAGE PATTERN 315MHz ( 32 kHz) 40 kHz 1 Amplitude Shift Keying (ASK) 9600 bds
< 10mW Internal 1 Lithium battery 3V (CR2050) 2.1 up to 3.2V 3.1 AVERAGE FACTOR CALCULATION (Standard 47 CFR Part 15C (periodic intentional transmitter)) RF frames maximum duration = 10.3ms Averaging factor = 20 x log (10.3/100) = -19.7dB 2 of 5 Continental Automotive 4. BLOCK DIAGRAM The block diagram below shows the main electronic units of the wheel unit:
A N T E N N A P re ssure, te m p eratu re , a ccele ra tion se nso r a nd co ntroller R F C IR C U IT Le arnin g co il 3V LIT H IU M B A T T E R Y 3 of 5 Continental Automotive 5. PICTURES 4 of 5 Continental Automotive Label 6.1 EU 6.2USA Continental TIS-04-ASK Continental TIS-04-ASK FCC ID: KR5TIS-04-ASK 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. 6.3 CANADA Continental Model: TIS-04-ASK IC: 7812D-TIS04ASK 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. 5 of 5