LLRRS-681Car Alarm System

412.52MHz Two- way Power Manage- Communication Unit ment/low power (built-in) Control MCU Of Remote Control Keyboard Interface LCD Block Diagram of Remote Control

External Photos FIGURE 1 EUT - Front View (1) FIGURE 2 EUT- Back View (1)

ID Label Label FCC ID: LLRRS-681

ID Label/Location Label Location Information Specifications: Text is Black or white in color and is left justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Refer to the below arrow.

Internal Photos FIGURE 1 EUT – PCB view (1) FIGURE 2 EUT - PCB view (2)

Circuit Description of the Remote Control The Circuit Description of the Remote Control resembles that of the Main Control Unit except some value of components are different. At usual time, The Remote Control is in the sleeping mode and the Main Control Unit is in the receiving mode for power saving. When any button of the Remote Control is pressed, the remote control wakes up and transmits the corresponding information to the Main Control Unit in 120ms and waits for the acknowledgement signal in 400ms. When any alarm (such as shock sensor, door open, ignition detector) is triggered, the Main Control unit sets off the siren and flashes the turn light for 30 seconds, at the same time, the Main Control unit transmits the alarm message to the Remote Control for 3 seconds to ensure to wake up the Remote Control. If the Remote Control is within the communication range, it will receive the alarm message and sets off the warning beeping and alarm icons indicate on the LCD simultaneously. The RF module of the Remote Control is built-in, and the independent communication unit is the RF module of the Main Control Unit connected with the Main Control Unit by a 7-p cable.

Note: This test report is specially limited to the above client company and the product model only. It may not be duplicated without prior written consent of Bay Area Compliance Laboratory Corporation. This report must not be used by the client to claim product endorsement by NVLAP or any agency of the U.S. Government. FCC PART 15 Subpart C EMI MEASUREMENT AND TEST REPORT For CHINA NATIONAL ELECTRONICS IMPORT& EXPORT SHENZHEN COMPANY 35/ F, BLOCK A, ELECTRONICS SCIENCE& TECHNOLOGY BUILDING, 2070, SHENNAN ZHONGLU, SHENZHEN, CHINA. FCC ID: LLRRS-681 July 2, 2003 This Report Concerns: Original Report Equipment Type: CAR ALARM SYSTEM Test Engineer: Jandy Su Report No.: RSZ03060904 Test Date: June 9, 2003 Reviewed By: Ling Zhang Prepared By: Bay Area Compliance Lab Corp. Suite C, 41-D Electronics Science & Technology Building, No. 2070 Shennanzhong Rd ShenZhen, Guandong 518031, P.R. China Tel: (755) 83296449 Fax: (755) 83273756 CHINA NATIONAL ELECTRONICS IMPORT& EXPORT SHENZHEN COMPANY FCC ID: LLRRS-681 Report # RSZ03060904 (1).doc Page 2 of 12 FCC Part 15 Subpart C Test Report TABLE OF CONTENTS 1 - GENERAL INFORMATION..................................................................................................................................3 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..............................................................................3 1.2 OBJECTIVE.............................................................................................................................................................3 1.3 RELATED SUBMITTAL(S)/GRANT(S) ......................................................................................................................3 1.4 TEST METHODOLOGY............................................................................................................................................3 1.5 TEST FACILITY.......................................................................................................................................................3 1.6 TEST EQUIPMENT LIST...........................................................................................................................................4 2 - SYSTEM TEST CONFIGURATION.....................................................................................................................5 2.1 DESCRIPTION OF TEST CONFIGURATION................................................................................................................5 2.2 CONFIGURATION OF TEST SYSTEM.........................................................................................................................5 2.3 TEST SETUP BLOCK DIAGRAM...............................................................................................................................5 2.4 EQUIPMENT MODIFICATIONS.................................................................................................................................5 3 - SUMMARY OF TEST RESULTS..........................................................................................................................6 4 - CONDUCTED EMISSIONS TEST DATA............................................................................................................7 5 - RADIATED EMISSION DATA .............................................................................................................................8 5.1 MEASUREMENT UNCERTAINTY..............................................................................................................................8 5.2 EUT SETUP............................................................................................................................................................8 5.3 SPECTRUM ANALYZER SETUP................................................................................................................................8 5.4 TEST PROCEDURE..................................................................................................................................................9 5.5 CORRECTED AMPLITUDE & MARGIN CALCULATION.............................................................................................9 5.6 SUMMARY OF TEST RESULTS.................................................................................................................................9 5.7 RADIATED EMISSIONS TEST RESULT DATA...........................................................................................................9 6 – OPERATION TIMES ...........................................................................................................................................10 6.1 TEST RESULTS.....................................................................................................................................................10 7 –BANDWIDTH TESTING ......................................................................................................................................11 7.1 TEST RESULTS.....................................................................................................................................................11 CHINA NATIONAL ELECTRONICS IMPORT& EXPORT SHENZHEN COMPANY FCC ID: LLRRS-681 Report # RSZ03060904 (1).doc Page 3 of 12 FCC Part 15 Subpart C Test Report 1 - GENERAL INFORMATION 1.1 Product Description for Equipment Under Test (EUT) The CHINA NATIONAL ELECTRONICS IMPORT& EXPORT SHENZHEN COMPANY’s product, model name: RS-681 or the "EUT" as referred to in this report is CAR ALARM SYSTEM. The EUT is a Mobile Transmitter, which measures approximately 7.5cmL x 4.0cmW x 2.0cmH. The EUT power: DC 1.5V battery, we used a new battery during test. * The test data was good for test sample only. It may have deviation for other product samples. 1.2 Objective This document is a test report based on the Electromagnetic Interference (EMI) tests performed on the EUT. The EMI measurements were performed according to the…

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Test Setup Photos Test Setup Photos Radiated Emission – Front View Radiated Emission – Rear View