DSC Communication Bit '0' Bit '1' 2k baud = 500us Transmission Format: A complete transmission consists of a header, 4 sync bits, status byte, 24bit serial number, and 8 bit CRC. Status Byte Serial MSB Serial Mid Serial LSB CRC Byte Header 2.5ms PREAMBLE 4 '1' BITS Start Bit MSBLSB T1T2T3 T1 = 100ms + (50ms * Serial Number LSB bit 1,0) T2 = 100ms + (50ms * Serial Number LSB bit 3,2) T3 = 100ms + (50ms * Serial Number LSB bit 5,4) Example: If Serial Number LSB is 00110010. Then T1 = 200ms, T2 = 100ms, and T3 = 250ms. A complete transmission consists of 4 packets of data. The timing between packets is defined as follows:

Block Diagram

BAT SW1 LED XTAL 13.56 MHz MAX7044 XTAL 4MHZ SW2 SW3 TILT SW TAMPER SW REED SW EN CODER 3V

Cover Letter(s)

Helen Zhao Subject: FW: Secure Wireless, Inc., FCC ID: QNPEV-DW433C, Assessment NO.: AN05T4642, Notice#1 Importance: High 1/7/2005 From: [email protected] Sent: Thursday, April 07, 2005 3:06 AM To: Helen Zhao Subject: FW: Secure Wireless, Inc., FCC ID: QNPEV-DW433C, Assessment NO.: AN05T4642, Notice#1 Importance: High Dear Helen, Question #1: There is no push button on the device, but the report said, "To activate continuous transmitting & receiving, place a small plastic block between rubber band and EUT push button." Please explain. What is the botton #1 you referred in the report? ---> Sorry about that! Attached please find Test Report_.pdf! Question #2: This device is not activated by pushing any botton manually, please provide plots to show the device will cease transmission within 5 seconds after deactivation in three cases: tilt switch, tamper switch and reed switch, to demonstrate compliance with FCC rule 15.231(a) (2). ---> Please refer to already granted project "AN04T3659" (FCC ID:QNP-EVDW433). cease transmission within 5 seconds after deactivation is done by means of firmware control. Total time of each transmission sequence will last only 16.9 ms and this transmission procedure will repeat 8 times. Regarding Q2: Please show more concrete evidence to show "A transmitter activated authomatically shall cease transmission within 5 seconds after deactivation". You can either ask the manufacturer to provide theoretical pulse train plot or you provide real measurement in the test report. Your statement "Total time of each transmission sequence will last only 16.9 ms and this transmission procedure will repeat 8 times. " implies that the device transmits periodically at regular predetermined intervals, which is not permitted under 15.231(a), however it is allowed under 15.231(e). It's not clear now. But if it is the case, you may need to change your limit to 15.231(e), at the same time, please make sure it meets 15.231(e) requirement "that the duration of each transmission shall not be greater than one second and the silent period between transmissions shall be at least 30 times the duration of the transmission but in no case less than 10 seconds." ---> Sorry about that! Attached please find DSC communication for FCC. Best regards, Joy Hsiao

External Photos

Compliance Certification Services Inc. Report No.: 50201204 Date of Issue: March 09, 2005 Page PHOTOGRAPHS OF EUT Compliance Certification Services Inc. Report No.: 50201204 Date of Issue: March 09, 2005 Page Compliance Certification Services Inc. Report No.: 50201204 Date of Issue: March 09, 2005 Page

Internal Photos

Compliance Certification Services Inc. Report No.: 50201204 Date of Issue: March 09, 2005 Page Compliance Certification Services Inc. Report No.: 50201204 Date of Issue: March 09, 2005 Page Compliance Certification Services Inc. Report No.: 50201204 Date of Issue: March 09, 2005 Page Compliance Certification Services Inc. Report No.: 50201204 Date of Issue: March 09, 2005 Page

Operational Description

EV-DW433C door sensor Operational Description The EV-DW433C door sensor is a low powered, which is installed in house to detect door/window for home security and other features. See the function descriptions in attached. The sensor is powered by a 3.3 volt battery. It is designed to operate on a single fixed frequency at 433.92 MHz. See the attached block diagram and schematic. There are 3 switches trigger the integrated circuit (IC1) which produces the digital control signals and will modulate the carrier signal(ASK). The carrier signal is generated by a I.C (IC1) oscillator/amplifier circuit comprised of a 13.56 MHz crystal (X1) . The modulated output of the RF stage is coupled to the strip antenna. The antenna is off-board soldered, around 160mm. The sensor is operated by the triggered momentarily within 0.2 second and will automatically deactivate send signal to receiver. All tuning and verification are performed by the manufacture and there are no adjustments can be made by user.

Schematics

NUTEK CORPORATION NAME: APPD BY: CHK BY: DRN BY: REV: DATE: DATE: DATE: SHEET OF B 2005 01 27 11 N51F045A ( DOOR SENSOR ) R1 100K C1 0.1U 4 2 1 5 63 J2 PROGRAM R5 470K R6 470K R7 470K 1 6 VCC 5 GND JP2 2 JP3 1 ZONE 3 11 RESET 4 TAMPER SW 13 BAT 7 JP1 3 REED SW 14 ZONE 2 12 TX 19 OSC2 17 OSC1 18 1 5 VCC 6 GND TILT SW 10 LED 9 PULL UP 8 (2.5V) (ROOLING BALL) (COVER SW) (ZONE 1) IC1 AIF6280L R2 100K C2 100P SW1 TILT SW R3 470K SW3 REED SW R4 470K R12 100K C16 100P D4 6.2V R14 100K C17 100P D5 6.2V 1 2 3 N1 SENSOR R15 2.2K R13 2.2K XTAL2 4.0M R11 1K LED PAGND 3 PAOUT 4 GND 2 DATA 6 ENABLE 5 VDD 7 XTAL1 1 XTAL2 8 U2 MAX7044 L5 18nH C10 12P C9 12P C12 220pF C11 0.001u C15 15pF C13 18pF C14 N/A XTAL1 13.56 MHz R9 3.3K R10 150 C7 220pF C6 0.001u L4 18nH C8 8.2pF C5 0.1U BATP BATN 3.3V BAT CTDD T1 T5 T4 PULL C3 100P C4 100P D1 6.2V D2 6.2V D3 6.2V COMNONC SW2 TAMPER SW C18 N/A R8 1M T2 T6 T7 T8 T9 D6 N/A D7 N/A VDD 2 NC 4 OUT 1 NC 5 VSS 3 U3 S-80825 ANT ZONE 2 COMMON ZONE 3 3 2 1 4 5 J3 N/A 2 1 J1 N/A PULL PULL PULL PULL PULL PULL

Test Report

Compliance Certification Services Inc. Report No.: 50201204-RP1 FCC ID: QNPEV-DW433C Date of Issue: March 09, 2005 Page 1 of 15 Rev. 00 FCC ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT CERTIFICATION TO FCC PART 15 REQUIREMENTS for INTENTIONAL RADIATOR of Wireless home security interface FCC ID Number : QNPEV-DW433C Trade Name : Evolution Model Number : EV-DW433C Agency Series : N/A Report Number : 50201204-RP1 Date : March 10, 2005 Issued to Secure Wireless, Inc. 1185 Park Center Dr Suite A/B Vista, CA 92083 Issued by Compliance Certification Services Inc. Hsintien Lab. No. 165, Chunghsen Road, Hsintien City Taipei Hsien, Taiwan TEL: (02) 2217-0894 FAX: (02) 2217-1029 Note: This report shall not be reproduced except in full, without the written approval of Compliance Certification Services Inc. Ltd. This document may be altered or revised by Compliance Certification Services Inc. personnel only, and shall be noted in the revision section of the document. Compliance Certification Services Inc. Report No.: 50201204-RP1 FCC ID: QNPEV-DW433C Date of Issue: March 09, 2005 Page 2 Rev. 00 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE ............................................................... 3 2. PRODUCT DESCRIPTION................................................................................. 4 3. TEST FACILITY ................................................................................................... 4 4. MEASUREMENT STANDARDS ....................................................................... 4 5. TEST METHODLOGY ........................................................................................ 4 6. MEASUREMENT EQUIPMENT USED ........................................................... 5 7. POWERLINE RFI LIMIT.................................................................................... 5 8. RADIATED EMISSION LIMITS ....................................................................... 6 9. SYSTEM TEST CONFIGURATION ................................................................. 6 10. TEST PROCEDURE ............................................................................................. 7 11. EQUIPMENT MODIFICATIONS...................................................................... 8 12. TEST RESULT ....................................................................................................... 9 12.1. MAXIMUM MODULATION PERCENTAGE (M%)................................. 9 12.2. THE EMISSIONS BANDWIDTH ................................................................... 9 APPENDIX I TEST DATA ........................................................................................ 10 Compliance Certification Services Inc. Report No.: 50201204-RP1 FCC ID: QNPEV-DW433C Date of Issue: March 09, 2005 Page 3 Rev. 00 1. VERIFICATION OF COMPLIANCE COMPANY NAME : Secure Wireless, Inc. 1185 Park Center Dr Suite A/B Vista, CA 92083 CONTACT PERSON : Michael Lamb TELEPHONE NO. : 866-966-9473 EUT DESCRIPTION : Wireless home security interface MODEL NAME/NUMBER : EV-DW433C FCC ID : QNPEV-DW433C DATE TESTED : February 14, 2005 & February 17, 2005 REPORT NUMBER : 50201204-RP1 TYPE OF EQUIPMENT SECURITY EQUIPMENT (INTENTIONAL RADIATOR) EQUIPMENT TYPE 433.92 MHz Wireless home security interface MEASUREMENT PROCEDURE ANSI 63.4 / 2003 LIMIT TYPE CERTIFICATION FCC RULE CFR 47, PART 15 The above equipment was tested by Compliance Certification Services Inc. for compliance with the requirements set forth in the FCC CFR 47, PART 15. The results of testing in this report apply to the product/system which was tested only. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Warning: This document reports conditions under which testing was conducted and results of tests performed. This document may not be altered or revised in any way unless done so by Compliance Certification Services Inc. and all revisions are duly noted in the revisions section. Any alteration of this document not carried out by Compliance Certification Services Inc. will constitute fraud and shall nullify the document. Approved by: Reviewed by: Compliance Certification Services Inc. Report No.: 50201204-RP1 FCC ID: QNPEV-DW433C Date of Issue: March 09, 2005 Page 4 Rev. 00 2. PRODUCT DESCRIPTION Fundamental Frequency 433.92 MHz Power Source 3.3V Battery Transmitting Time Periodic < 5 seconds Associated Receiver FCC ID: N/A 3. TEST FACILITY The open area test sites and conducted measurement facilities used to collect the radiated data are located at No. 165 & 199, Chunghsen Road, Hsintien City, Taipei Hsien, Taiwan The sites are constructed in conformance with the requirements of ANSI C63.7, ANSI C63.4 and CISPR Publication 22. 4. MEASUREMENT STANDARDS The site is constructed and calibrated in conformance with the requirements of ANSI C63.4/2003. 5. TEST METHODOLOGY For an intentional radiator, the spectrum shall be investigated from the lowest radio frequency signal generated in the device, without going below 9 KHz, up to at least the tenth harmonic of the highest fundamental frequency or to 40 GHz, whichever is lower. (CFR 47 Section 15.33) Compliance Certification Services Inc. Report No.: 50201204-RP1 FCC ID: QNPEV-DW433C Date of Issue: March 09, 2005 Page 5 Rev. 00 6. MEASUREMENT EQUIPMENT USED Open Area Test Site # E Name of Equipment Manufacturer Model Serial Number Calibration Due SITE NSA CCS E Site N/A 09/10/2005 EMI TEST RECEIVER R&S DSAI-D / ESBI-RF 827832/001 82706/003 03/08/2005 ANTENNA SCHAFFNER CBL 6112B 2802 09/25/2005 AMPLIFIER MCL ZKL-1R5 D100704 12/16/2005 CABLE SUHNER RG 214 N-TYPE#E4 11/18/2005 THERMO- HYGRO METER TFA N/A NO.6 11/09/2005 ATTENUATOR Midwest MicrowaveUNAT-10 AT10-2 12/16/2005 EMC ANALYZER (100Hz-22GHz) HP 8566B 2937A06102 07/26/2005 ANTENNA (1-18GHz) EMCO 3115 5761 01/17/2006 AMPLIFIER (1-26.5GHz) HP 8449B 3008A01266 02/15/2005 CABLE (1-18GHz) JYEBAO HUBER+SUHNER LL142 SUCOFLEX 104 SMA-RS1&2 S…

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Test Setup Photos

Compliance Certification Services Inc. Report No.: 50201204-RP1 FCC ID: QNPEV-DW433C Date of Issue: March 09, 2005 Page 6 Rev. 00 8. RADIATED EMISSION LIMITS GENERAL REQUIREMENTS SECTION 15.209 RESTRICTED BANDS OF OPERATION SECTION 15.205 PERIODIC OPERATION IN THE BAND 40.66 -40.70 MHz AND ABOVE 70 MHz. SECTION 15.231 9. SYSTEM TEST CONFIGURATION Use a block of foam and combined it with EUT wrapping rubber band around it. This way it can test X, Y and Z axis. To activate continuous transmitting & receiving, place a small plastic block between rubber band and EUT push button. Radiated Open Site Test Set-up