Continental Automotive TIS 10DL Users manual

Tire Pressure Generation TIS-10DL

Wheel Unit

Type

ASK/FSK 315 MHz

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bit

Framebyte

Framebits

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1. SYSTEM OVERVIEW

The tire pressure monitoring system (referred as TG for Tire Guard) consists of the following
units:

- Tire guard wheel unit type TIS-10DL which includes an integrated pressure, temperature and
acceleration sensor and a RF transmitter.

- LF unit which includes a LF receiver (not described 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.

2. TECHNICAL DESCRIPTION

Carrier frequency: 315 MHz
Number of channels: 1
Type of modulation: Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK)
Baud rate: 9600bps
Rated Output Power: < 10mW
Antenna: Internal
Voltage supply range: 2.1 up to 3.2V
Temperature range: -40 up to +120°C

3. TYPICAL USAGE PATTERN

3.1 AVERAGE FACTOR CALCULATION (Standard 47 CFR Part 15C (periodic

intentional transmitter))

Maximum transmitting duration in whatever 100ms windows: 10.31ms

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Averaging factor = 20xlog(10.31/100)=-19.73dB

Baudrate 9600bps:=
Framebyte 12byte 2
Framebits
Framebits 98=

tbit

:=

:=

Baudrate 1 ToleranceBaudrate−( )⋅

+:=

ToleranceBaudrate 1%:=

1

tbit 0.10522ms⋅=
tFramebits tbit
tFramebits 10.31145ms⋅=
tFrameFSKbits tFramebits1⋅:=

AveragingFactor_tFrame 20log

⋅:=

:=

due to FSK 100%

tFrameFSKbits

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100ms

Averaging Factor_tFrame = -19.8dB

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