KHH20TN-1Remote Control Transmitter

Page 1 of 2 Copyright  1999 TRW Automotive Electronics Author:Roger Lee Date:10/11/99 Updated:10/11/99 Operation of the 20TN-1 Radio Key Vehicle Lock and Security System Arm Standing near the vehicle, depress for approximately one second the button marked with a closed padlock symbol. Vehicle Unlock and Security System Disarm Standing near the vehicle, depress for approximately one second the button marked with an open padlock symbol. Trunk Unlock Standing near the vehicle, depress for approximately one second the button marked with a symbol representing a car with an open trunk. Panic Alarm Standing near the vehicle, depress and hold any button. After a short delay, the car alarm will sound and continue to sound, even when the depressed button is released. Depressing one of the buttons again for one second will stop the alarm. Battery Changing 1. Remove the 20TN-1 back cover by inserting a suitable tool into the hole on the side of the unit and gently levering the cover out. 2. Remove the 20TN-1 battery, by pulling back the white plastic battery retaining clip and using a suitable non-conducting tool inserted in the recess provided to prise out the battery. 3. Fit a new battery by inserting it, positive (+) side uppermost, under the metal clips in the battery compartment and pressing on the opposite edge of the battery to push it under the white retaining clip. 4. Refit the 20TN-1 cover by engaging the two key cover lugs into the key head and pressing the cover on the opposite edge until cover latch engages. 5. When a battery is replaced, the 20TN-1 fob loses synchronisation with the vehicle. To re-synchronise the key, stand near the vehicle and press either the lock or unlock button (but not both) four times over a period of two seconds. Page 2 of 2 Copyright  1999 TRW Automotive Electronics Teaching a Vehicle to Recognise a Key If a new immobiliser unit is fitted in a vehicle or a new 20TN-1 is required because a key has failed or has been lost, the immobiliser must be taught to recognise the vehicle key(s). This can be performed only at the Lucas manufacturing plant, the Saab assembly plant or an approved Saab service centre. Note: The 20TN-1 will work with a Lucas 16AS, 23AS or 32AS receiver. Neither receiver has user controls.

20TN-1 Block Diagram BATTERY+3v TRANSPONDERINTERFACE SECURITY CODEGENERATOR RF MODULATOR LOCK UNLOCK ANTENNA TRUNKUNLOCK ASIC

20TN-1 Block Diagram BATTERY+3v TRANSPONDERINTERFACE SECURITY CODEGENERATOR RF MODULATOR LOCK UNLOCK ANTENNA TRUNKUNLOCK ASIC

± ± ± ± ° ° ° ° ± ± ± ± ± ± ± ± ± ± ± ± 94mm (max) 18mm (max)39mm (max) FCC ID Label informationto appear in the recessedarea of the decklid.

315 MHz 20TN-1 Technical Description Copyright 1999 TRW Automotive ElectronicsPage 1 of 4 Author:Roger Lee Date:9 November 1999 Filed as:TechDec315.DOC Updated:9 November 1999 315 MHz 20TN-1 Technical Description Type DesignationLucas 20TN-1 315 MHz Radio Key Declaration of Equipment Characteristics TypeTransmitter Frequency Range315 MHz Fixed ± 200kHz Method of Carrier Frequency GenerationSAW Oscillator Adjacent Channel Separation300KHz Class of EmissionL1DAN Type of ModulationAmplitude Modulation Signal Input LevelN/A Modulation Input ImpedanceN/A Modulation Bandwidth5kHz Coupling MethodsElectrical Number of Channels1 UtilisationPortable Duplex operationNo AntennaIntegral Alternative AntennaNo Operating Temperature Range-10°C to +55°C Transmitter Rated Output Power 63 dBμV/m at 3m C.W. 2nd Harmonic Power 40 dBμV/m at 3m Voltage supply range2.5 to 3.3 V DC Composition of EquipmentSingle Unit Brief Description Of Operation. The product has two sections: an rf generator and a custom chip which provides the data input for the rf section. A block diagram of the 20TN-1 is shown in figure 1. The data is pulse-width encrypted and then amplitude modulated onto the rf carrier using a non-return-to-zero code at a maximum of 1k baud. The clock generator for the coding chip is crystal controlled. The message length is 56 bits. A rolling code system is used for added security. When one of the transmitter buttons (‘lock’, ‘unlock’ or ‘trunk unlock’) is depressed and released, a single burst of rf is transmitted. This transmission is an rf signal amplitude modulated with a pulse train (see figures 2 and 3). If a transmitter button is depressed and held, an extended rf signal is transmitted until the button is released (see figure 4). 315 MHz 20TN-1 Technical Description Copyright  1999 TRW Automotive Electronics Page 2 of 4 Figure 1 20TN-1 Block Diagram BATTERY+3v TRANSPONDERINTERFACE SECURITY CODEGENERATOR RFMODULATOR LOCK UNLOCK ANTENNA TRUNKUNLOCK A SIC 315 MHz 20TN-1 Technical Description Copyright  1999 TRW Automotive Electronics Page 3 of 4 Figure 2 Transmitter Output Diagram 27ms pre-amble Data field, 56 data bits including security coding, parity and unit status 315 MHz 20TN-1 Technical Description Copyright  1999 TRW Automotive Electronics Page 4 of 4 Figure 3 20TN-1 Output with Button Depressed & Released Figure 4 20TN-1 Output with Button Depressed & Held 27 ms 10 ms 10 ms 10ms 16 bits 16 bits 16 bits 56 bits . . . . . . . . . 27 ms 56 bits

FCC CERTIFICATION TEST REPORT for TRW Automotive Electronics Stratford Road Solihull England B90 4GW FCC ID: KHH20TN-1 February 14, 2000 WLL PROJECT #: 5576X This report may not be reproduced, except in full, without the prior written consent of Washington Laboratories, Ltd. TRW Automotive Electronics FCC ID: KHH20TN-1 WLL Project #: 5576X i TABLE OF CONTENTS Statement of Qualifications ____________________________________________________ 1.0INTRODUCTION........................................................................................................................................... 2 1.1S UMMARY...................................................................................................................................................... 2 2.0DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ......................................................................... 2 2.1O N-BOARD OSCILLATORS.............................................................................................................................. 2 3.0TEST CONFIGURATION ............................................................................................................................. 3 3.1T ESTING ALGORITHM..................................................................................................................................... 3 3.2C ONDUCTED EMISSIONS TESTING.................................................................................................................. 3 3.3R ADIATED EMISSIONS TESTING...................................................................................................................... 3 3.3.1Radiated Data Reduction and Reporting............................................................................................... 4 FCC 15.231 3M Radiated Emissions Data – Site 2 .............................................................................................................5 TABLES Table 1.Radiated Emissions Results Table 2.System Under Test Table 3.Interface Cables Used Table 4.Measurement Equipment Used EXHIBITS Exhibit 1.Duty Cycle Calculations Exhibit 2.Carrier Bandwidth Data APPENDICES Appendix A.Statement of Measurement Uncertainty TRW Automotive Electronics FCC ID: KHH20TN-1 WLL Project #: 5576X 1 TRW Automotive Electronics FCC ID: KHH20TN-1 WLL Project #: 5576X 2 FCC CERTIFICATION TEST REPORT for FCC ID: KHH20TN-1 1.0Introduction This report has been prepared on behalf of TRW Automotive Electronics to support the attached Application for Equipment Authorization. The test and application are submitted for a Periodic Intentional Radiator under Part 15.231 of the FCC Rules and Regulations. The Equipment Under Test was TRW Automotive Electronics 20TN-1 Radio Key Low Power Transmitter. All measurements herein were performed according to the 1992 version of ANSI C63.4. The measurement equipment conforms to ANSI C63.2 Specifications for Electromagnetic Noise and field Strength Instrumentation. Calibration checks are made periodically to verify proper performance of the measuring instrumentation. All measurements are performed at Washington Laboratories, Ltd. test center in Gaithersburg, MD. Site description and site attenuation data have been placed on file with the FCC's Sampling and Measurements Branch at the FCC laboratory in Columbia, MD. Washington Laboratories, Ltd. has been accepted by the FCC and approved by NIST NVLAP (NVLAP Lab Code: 200066-0) as an independent FCC test laboratory. All results reported herein relate only to the equipment tested. The measurement uncertainty of the data contained herein is ±2.3 dB. Refer to Appendix A for Statement of Measurement Uncertainty. This report shall not be used to claim product endorsement by NVLAP or any agency of the US Government. 1.1Summary The TRW Automotive Electronics 20TN-1 Radio Key complies with the limits for a Periodic Intentional Radiator under Part 15.231 of the FCC Rules and Regulations. 2.0Description of Equipment Under Test (EUT) The TRW Automotive Electronics Radio Key Transmitter is a 315 MHz low power transmitter mounted in the head of a key that is used as a wireless remote control for vehicle keyless entry systems. The battery powered transmitter is manually operated and used with certified receivers. The unit stops transmitting as soon as the button is released. 2.1On-board Oscillators The TRW Automotive Electronics 20TN-1 Radio Key contains a 315 MHz SAW oscillator. TRW Automotive Electronics FCC ID: KHH20TN-1 WLL Project #: 5576X 3 3.0Test Configuration To complete the test configuration required by the FCC, the unit was tested in all three orthogonal planes. 3.1Testing Algorithm The transmitter was turned on and constantly transmitting at 315MHz. The unit was tested in all three orthogonal planes. Worst case emissions are recorded in the data tables. 3.2Conducted Emissions Testing Conducted emissions testing was not performed as the unit is battery powered. 3.3Radiated Emissions Testing The EUT was placed on an 80 cm high 1 x 1.5 meters non-conductive motorized turntable for radiated testing on a 3 meter open field test site. The emissions from the EUT were measured continuously at every azimuth by rotating the turntable. Biconical and log periodic broadband antennas were mounted on an antenna mast to determine the height of maximum emissions. The height of the antenna was varied between 1 and 4 meters. The peripherals were placed on the table in accordance with ANSI C63.4-1992. Cables were varied in position to produce maximum emissions. Both the horizontal and vertical field components were measured. The output from the antenna was connected, via a preamplifier, to the input of the spectrum analyzer. The detector function was set to quasi-peak or peak, as appropriate. The measurement bandwidth on the spectrum analyzer system was set to at least 120 kHz, with all post-detector filtering no less than 10 times the measurement bandwidth. TRW Automotive Electronics FCC ID: KHH20…

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