NHVBU427Automitive Security Remote Control

Explain of Keyless Entry System. 1) General The system allows the user to lock or unlock a vehicle’s doors only pressing the switch with a hand-held radio frequency Transmitter without using the Key. The system includes “PANIC” function that can discovery the car at once on a parking at night. Omnidirection was realized by radio frequency, you can control to easy without aiming a Transmitter to the Car. 2) How to use Keyless Entry System? a) Press the Switch on the Transmitter that you want to control. <Work Scope> The Work Scope change a little by surrounding situation. b) Lock and Unlock of the Door lock LOCK : All Doors lock every time by pressing “LOCK” on the Transmitter. UNLOCK : Driver doors unlock by once pressing “UNLOCK” on the Transmitter. All doors unlock by twice pressing “UNLOCK” on the Transmitter. c) Trunk opens TRUNK : The trunk opens by pressing “TRUNK” for 0.5 second on a Transmitter. d) PANIC ALARM PANIC : Press “PANIC” on the Transmitter. Several times you press, the Transmitter sends the signal repeatedly for 1 second intervals. 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, This device complies with DOC rules in Canada. Changes or modifications not expressly approved by the party responsible for compliance should void the user’s authority to operate the equipment. 3) About exchange of the battery To replace When the Remote Keyless Entry Transmitter’s Battery begins to get weak, replace the Battery as soon as possible. Battery type : CR2025 the Battery, remove the cover . Remove the old Battery and note the polarity. Make sure the polarity of the new Battery is the same, then insert it in the Transmitter.

FCC ID:NHVBU427

4) Data format. a) Coding : Manchester b) Data Speed : 625bps c) Data packet : 1 Frame (192bit) d) Transmitting time = 307.2mS+/- 20% e) Data format (After coding) f) Bit timing (After coding) “0”data “1”data Transmitting Data (Detail) Pulse width : 800uS +/- 20%, & 1600uS +/- 20% 5. System description. About the Transmitter of Keyless Entry System, that action principle is written as below. The Transmitter can transmit a signal by switch operation. All circuits inclusive of a micro processor are halt condition, (The condition that waits for same input of switches.) When you press the one of four buttons, the micro starts the operation. The micro reads ID code & Rolling code from the EEPROM of Transmitter. After reads the codes, the micro make the other codes and data format. Then the micro sends the data to Oscillator. The Signal is generated by Oscillator. The oscillator only acts when the data from the micro is “HIGH”. Header (136bit) User Code (8bit) ID Code (24bit) Function Code (8bit) Rolling Code (12bit) 1600u S 1600u S Each 1600uS 0 1 0 1 0 1 0 1 0 1 0 0 800u S 1600u S When the transmission data finished, the micro become halt mode, and it waits input from the Button. Transmitter Specifications. 282684Z Transmitter 1 Function LOCK / UNLOCK /TRUNK/PANIC(4 Buttons) 2 Operation Frequency 315MHz (Carrier Generated by SAW-Resonator) 3 Antenna Integrated 4 Radiated Emission Meet FCC Part 15 (US) & RSS210 (Canada) 5 Operating Temperature -20 to +60deg. C 6 Operation Voltage 3V DC (1 Lithium Battery / CR2025) 7 Operating Current 20mA Typical 8 Standby Current 2.5uA Maximum 9 Battery Life 2year Minimum 10 Identification Codes 24bit 11 Modulation Amplitude (Digital) 12 Coding Manchester 13 Bit Rate 625bps

Test report Our reference : 21JE0023-YW-1 Page: 2 of 11 Issued date: June 12, 2001 FCC ID: NHVBU427 Testing Laboratory A-pex International Co., Ltd. Telephone:+81 596 39 1485 108 Yokowa-cho, Ise-shi Mie-ken 516-1106 JAPANFacsimile:+81 596 39 0232 Table of Contents Page 1 GENERAL INFORMATION3 1.1 Product Description4 1.2 Test Specification4 1.3 Methods & Procedures4 1.4 Test Location4 2 SYSTEM TEST CONFIGURATION5 2. 1 Operation Environment 5 2.2 Justification5 2. 3 EUT Exercise Software5 2.4 Test Procedure5 Figure 2.1 Configuration of Tested System6 3 RADIATED EMISSION DATA7 3.1 Field Strength Calculation7 2.2 –20dB Bandwidth7 3.3 Measurement Uncertainty8 4 TEST EQUIPMENT USED9 5 MEASUREMENT PHOTOS 10 Figure 5.1 Radiated Measurement Photos 10 APPENDIX11 A:Test Data A1 – A3 Test report Our reference : 21JE0023-YW-1 Page: 3 of 11 Issued date: June 12, 2001 FCC ID: NHVBU427 Testing Laboratory A-pex International Co., Ltd. Telephone:+81 596 39 1485 108 Yokowa-cho, Ise-shi Mie-ken 516-1106 JAPANFacsimile:+81 596 39 0232 1 GENERAL INFORMATION APPLICANT: TOHOKU ALPS CO., LTD. ADDRESS: 6-3-6, Nakazato, Furukawa-City, Miyagi-Pref 989-6143 Japan Telephon Number: +81-229-23-5111 Facsimile Number: +81-229-22-3755 REGULATION(S): FCC Part 15 Subpart C Section 15.231 MODEL NUMBER: TFWBU427A FCC ID: NHVBU427 SERIAL NUMBER: smple No.1 Condition EUT: Engineerring Prototype KIND OF EQUIPMENT: Keyless Entry System (Transmitter) TESTED DATE: June 6, 2001 RECEIPT DATE OF SAMPLE : June 3, 2001 REPORT FILE NUMBER: 21JE0023-YW-1 TEST SITE: A-PEX Yokowa No.3 Open Test Site Test report Our reference : 21JE0023-YW-1 Page: 4 of 11 Issued date: June 12, 2001 FCC ID: NHVBU427 Testing Laboratory A-pex International Co., Ltd. Telephone:+81 596 39 1485 108 Yokowa-cho, Ise-shi Mie-ken 516-1106 JAPANFacsimile:+81 596 39 0232 1.1 Product Description Model: TFWB1U427A (referred to as the EUT in this report) is a Keyless Entry System (Transmitter). The specification is as following : Carrier Frequency : 315 MHz Operation Voltage: Lithium Battery DC 3.0V(CR2025) Modulation: AM 1.2 Test Specification Test Specification: FCC Part 15 Subpart C Title: FCC 47CFR Part15 Radio Frequency Device Subpart C Intentional Radiators 15.231 Periodic operation in the band 40.66 – 40.70 MHz and above 70MHz 1.3Methods & Procedures No.ItemTest ProcedureSpecificationRemarks 1 Electric Field Strength of Fundamental Emission ANSI C63.4:1992 15.231 3m 2 Electric Field Strength of Spurious Emission ANSI C63.4:1992 15.205 15.209 15.231 3m 3-20dB BandwidthANSI C63.4:1992 15.231 - 1.4 Test Location A-PEX International Co.,Ltd. Yokowa No.3 test site 108 Yokowa-cho, Ise-shi, Mie-ken 516-1106 Japan Telephone number: +81-596-39-1485 Facsimile number: +81-596-39-0232 This site has been fully described in a report submitted to FCC office, and listed on September 12, 2000 (Registration number: 90412). *NVLAP Lab. code : 200109-0 Test report Our reference : 21JE0023-YW-1 Page: 5 of 11 Issued date: June 12, 2001 FCC ID: NHVBU427 Testing Laboratory A-pex International Co., Ltd. Telephone:+81 596 39 1485 108 Yokowa-cho, Ise-shi Mie-ken 516-1106 JAPANFacsimile:+81 596 39 0232 2 SYSTEM TEST CONFIGURATION 2.1 Operation Environment Temperature: 21 Humidity: 60% 2.2 Justification The system was configured in typical fashion (as a customer would normally use it) for testing. 2.3 EUT Exercise Software The EUT exercise program used during radiated testing was designed to exercise the various system components in a manner similar to typical use. The sequence is used: Operation Mode : Transmitting 2.4 Test Procedure Tabletop Equipment Radiated Emissions EUT was placed on a platform of nominal size, 1m by 1m, raised 80cm above the conducting ground plane. Test was made with the antenna positioned in both the horizontal and vertical planes of polarization. The measurement antenna was varied in height above the conducting ground plane to obtain the maximum signal strength. The measurement distance was 3m. Test report Our reference : 21JE0023-YW-1 Page: 6 of 11 Issued date: June 12, 2001 FCC ID: NHVBU427 Testing Laboratory A-pex International Co., Ltd. Telephone:+81 596 39 1485 108 Yokowa-cho, Ise-shi Mie-ken 516-1106 JAPANFacsimile:+81 596 39 0232 Figure2.1 Configuration of Tested System Front View (1):EUT Top View (1):EUT *Test data was taken under worse case conditions. No.ItemModel numberSerial numberManufacturerFCC ID 1Keyless Entry System (Transmitter) TFWB1U427ASample No.1TOHOKU ALPSNHVBU427 Test report Our reference : 21JE0023-YW-1 Page: 7 of 11 Issued date: June 12, 2001 FCC ID: NHVBU427 Testing Laboratory A-pex International Co., Ltd. Telephone:+81 596 39 1485 108 Yokowa-cho, Ise-shi Mie-ken 516-1106 JAPANFacsimile:+81 596 39 0232 3 RADIATED EMISSION DATA The initial step in collecting radiated data was a spectrum analyzer peak scan of the measurement range (30MHz-3200MHz). The final data was reported in the worst-case emissions. The minimum margin to the limit is as follows : No Ant Pol Freq [MHz] Reading [dB ì V] Antena Facter [dB] Cable Loss [dB] ATT [dB] AMP Gain [dB] Result [dB ì V/m] Limit [dB ì V/m] Margin [dB] Remark 1 H 314.94 75.3 14.4 3.6 5.8 27.6 71.5 75.6 4.1Fundamental 2 H2519.63 52.5 29.0 7.2 - 34.5 54.2 55.6 1.4Spurious Remark Below 1GHz: Test Receiver Setting: QP Detect / IF Bandwidth 120kHz Above 1GHz: Spectrum Analyzer Setting: AV Detect / RBW 1MHz, VBW 10Hz 3.1 Field Strength Calculation The field strength is calculated by adding the Antenna Factor, Cable Factor and Antenna Pad, and subtracting the Amplifier Gain from the measured reading. The sample calculation is as follows : FS = RA + AF + CF + AT - AG where FS = Field Strength RA = Receiver Amplitude AF = Antenna Factor CF = Cable Factor AT = Antenna Pad AG = Amplifier Gain Assume a receiver reading of 75.3 dB V is obtained. The antenna Factor of 14.4 dB, Cable Factor of 3.6 dB and Antenna Pad of 5.8 dB is added. The Amplifier Gain of 27.6 dB is subtracted, giving a field strength of 71.5 dB V/m.…

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Test report Our reference : 21JE0023-YW-1 Page: 10 of 11 Issued date: June 12, 2001 FCC ID: NHVBU427 Testing Laboratory A-pex International Co., Ltd. Telephone:+81 596 39 1485 108 Yokowa-cho, Ise-shi Mie-ken 516-1106 JAPANFacsimile:+81 596 39 0232 5 RADIATED MEASUREMENT PHOTOS 5.1 Radiated Measurement Photos