YAHDCX-800Wireless Door Chime

USER MANUAL WIRELESS DOOR CHIME with Learning Code System MAINTENANCE - For best results, use alkaline batteries. - Always replace old or weak batteries. - Keep doorbell dry. If wet, dry immediately. - Do not use cleaning solvents on electronic products. - Solvents contain chemicals that can damage circuitry. Use damp towel or rag to clean. Dry immediately. - Do not expose the bell unit to rain or immerse in water. It is not water resistant. - If the device is operated through an adapter, use one in accordance with national safety regulations. WARNING The user is cautioned that changes and modifications made to the equipment without the approval of manufacturer could void the user's authority to operate this equipment. The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Specification DC Power ReceiverTransmitter DC 4.5V (UM2 x 3)DC 3V (CR2032 x 1) AC/DC adaptor 6V 300mA w/ plug: 2.1mm center positive Frequency 914.8MHz Cover Range300meter Modulation FSK Coding Learning code 16 bit Fix (in sequence) System Includes Parts & Function Chime Bell Push CR2032SCREW Battery compartment Battery cover Speaker ID Flasher Learning button Melody selector Volume control Chime Chime Bell Pusher Pusher Open the cover Mount on the Door frame Function Switch Flip to open Name Plate Bell Button Mounting Hole Battery clip Mounting Or + CR2032 Open the cover Power -+ 6V DC 300mA Using a AC/DC adaptorUsing Battery 'C' Size 1.5V 'C' Size 1.5V 'C' Siz e 1.5 V or Code matching & melody select Press and hold the button 3 seconds. the LED #1 will flash. Press the button again to select the ID you wanted to match. Entering to learning mode (matching) After select the ID and melody, press the bell pusher once (the pusher must be near the chime 1m minimum). If success, the chime will generate a short tone. If the LED jump to the other position, this pusher is already matching on this ID. Then press to select melody. It is 16 melody in sequence. Delete the pusher on the chime memory First, press the button 3 seconds to entering the learning mode. Press the button to select the ID wanted to delete. Press and hold the and buttons 3 second. the chime will generate a tone to indicate the pusher on this ID have been delete. First, press the button 3 seconds to entering the learning mode. Press the button to select the ID wanted to change melody. Press the button to select the melody. Press the button until exit the learning mode. Change the melody in desired ID -1--2- 1. Chime (receiver) .......................... 1 PC 2. Bell push (transmitter) ................... 1 PC 3. Battery for bell push (CR2032) ....... 1 PC 4. Screw for installation) .................... 4 PCS Hang on the wallStand on the desk ID Learning button Melody selector CHIME LIGHT LIGHT & CHIME 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. NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT. -3- FCC Warning Statement Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. — Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. — Consult the dealer or an experienced radio/TV technician for help.

2206 Ringwood Avenue San Jose, CA 95131 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (current) 1.0 1.0 Nov-14-2006 Revised wording (current) 1.0 2.0 Sept–25-2007 __________________________________________________________________ SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 2.0 Centre of Testing Service Co., Ltd. Phone: +86-20-61243023 FAX: +86-20-38780406 Date: March 27, 2010 To: SIEMIC, INC. 2206 Ringwood Avenue, San Jose, CA 95131 USA Dear Sir/Madam, Re: Project and Product Certification Representative Authorization Letter We, CTS hereby authorize SIEMIC, INC. to act as a Certification Body for certifying for the following project(s): . Product Name: Wireless Door Chime Model Name: DCX-800 We affirm that between SIEMIC and CTS, any difference in understanding, including test plan, measurement methods, applicable standards and relevant procedures and processes have been resolved prior to commencement of testing activities. Sincerely, Kevin Liang Title: Manager Phone : +86-20-61243023 ext.:8138 Facsimile : +86-20-38780406 Address: Building F, Dachuang industrial park, NO.379, zhongshan Dadao, Guangzhou, China

FCC ID: YAHDCX-800 opyright of this report is owned by Centre of Testing Service and may not be reproduced other than in full except with the written approval of the issuing Company. CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China Tel：+86-20-85543113 (32 lines) Fax：+86-20-38780406 Complaint line：+86-20-85533471 E-mail：[email protected] See Reverse For Terms And Conditions of Service Report No.: CGZ3100310-00658-O Page 1 of 1 1 External Photos of the EUT External view-front External view-back

Venture Global Limited Tel: +852 3529 1206 Room 2506, 25/F, Star Centre, 443-451Castle Peak Road, Fax: +852 3692 5980 Kwai Chung,N.T. HongKong www.venture.hk ___________________________________________________________________________________________ _ Report No.: CGZ3100310-00658-O Page 1 of 4 APPLICATION FOR CERTIFICATION on Behalf of Venture Global Limited Wireless Door Chime Model No. : DCX-800 FCC ID. : YAHDCX-800 Application No. : CGZ3100310-00658-O 30 March 2010 Venture Global Limited Tel: +852 3529 1206 Room 2506, 25/F, Star Centre, 443-451Castle Peak Road, Fax: +852 3692 5980 Kwai Chung,N.T. HongKong www.venture.hk ___________________________________________________________________________________________ _ Report No.: CGZ3100310-00658-O Page 2 of 4 APPLICATION FOR FCC CERTIFICATION Applicant : Venture Global Limited EUT : Wireless Door Chime Model No. : DCX-800 FCC ID : YAHDCX-800 FCC & IC Report No. : CGZ3100310-00658-O Document List: EXHIBIT 1. LABEL DRAWING..........................................3 EXHIBIT 2. PHOTOGRAPHS...........................................4 Venture Global Limited Tel: +852 3529 1206 Room 2506, 25/F, Star Centre, 443-451Castle Peak Road, Fax: +852 3692 5980 Kwai Chung,N.T. HongKong www.venture.hk ____________________________________________________________________________________________ Report No.: CGZ3100310-00658-O Page 3 of 4 EXHIBIT 1. Label Drawing FCC Label Drawing 85mm Please refer Exhibit 2 Figure 2 for Label Placement Location 30mm Venture Global Limited Tel: +852 3529 1206 Room 2506, 25/F, Star Centre, 443-451Castle Peak Road, Fax: +852 3692 5980 Kwai Chung,N.T. HongKong www.venture.hk ____________________________________________________________________________________________ Report No.: CGZ3100310-00658-O Page 4 of 4 EXHIBIT 2. Photographs Photographs Figure 1 External view-front Figure 2 External view-back Label Location

FCC ID: YAHDCX-800 opyright of this report is owned by Centre of Testing Service and may not be reproduced other than in full except with the written approval of the issuing Company. CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China Tel：+86-20-85543113 (32 lines) Fax：+86-20-38780406 Complaint line：+86-20-85533471 E-mail：[email protected] See Reverse For Terms And Conditions of Service Report No.: CGZ3100310-00658-O Page 1 of 2 1 Internal Photos of the EUT Internal view-1 Internal view-2 PCB 1 layout FCC ID: YAHDCX-800 opyright of this report is owned by Centre of Testing Service and may not be reproduced other than in full except with the written approval of the issuing Company. CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China Tel：+86-20-85543113 (32 lines) Fax：+86-20-38780406 Complaint line：+86-20-85533471 E-mail：[email protected] See Reverse For Terms And Conditions of Service Report No.: CGZ3100310-00658-O Page 2 of 2 PCB 1 solder

Wireless Door Chime Technical information This Wireless door chime to form as two parts - Transmitter (Bell Pusher) & Receiver (Door Chime) Transmitter: The transmitter is powered by a CR2032 battery. IC1 is a MCU, when the button (connected to pin4) is pressed. The MCU will generate an enable signal to the turn on the RF chip and a serial ID code and apply to the RF chip TH72031 for FSK modulation. L1 is the loading of the RF output. The L2, C3 & C4 are form as antenna matching network. The modulated RF signal will applied to the antenna via this network. Q1 & Q2 are the trigger circuit of window sensor. When the magnetic device closes and leaves the magnetic switch. The Q1 will send a low signal to MCU. The MCU will generate an enable signal to the turn on the RF chip and generate a serial ID code and apply to the RF chip. The transmitter goes with a test pad. It connected to the pin 17 of IC1 and ground. When this pad is connected. The transmitter will be turn on continuely (for test only). Receiver: The receiver is power by 3 x 1.5V 'C' size batteries. The IC A720 is a receiver chip. the RF signal from antenna is couple to the pin 7 of the receiver chip via the tuning circuit, and the output received signal will couple to the MCU, the MCU will decode the signal and make decision what to do, The receiver chip is work in 1/100 duty with 1 second cycle. Once an effective is detected. The duty period will be extending until a data frame have be received. This receiver is using learning system. The codes are story in the flash memory inside the MCU. Once the receiving codes are matches the storied code. The chime will sound, the flasher will flash and the led indicator will show which button being pressed. The Q6 is a switching transistor to drive the flasher (3 LED) The Q2, 3, 4 & 5 are switch transistors to drive the ID LED. IC3 is a melody chip. It contains 16 melodies. The melody will be selected by MCU according to the setting. IC4 is audio amplifier. The IC1 is a regulator, it provide a stable voltage to the receiver chip.

1 2 3 4 8 7 6 5 TH72031 IC1 DC3V CR2032 C5 100p R1 0R L2 10nH L1 10nH 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 PA3 PA2 PA1 PA0 PB3/AN3 PB2/AN2 PB1/AN1 PB0/AN0 Vss PA4/TMR PA5/INT PA6 PA7 OSC2 OSC1 VDD RES PD0/PWM IC1 HT46R47 R2 470 R6 470 R5 470 D1 4148 R4 100K X2 4MHz C10 104 EN DA C1 100P C9 104 C9 105 C1 300pF C2 2.2P C4 4P C3 68P ANT C8 25P C7 10P 28.587MHz R8 X R7 10M R9 47K R10 10M C12 104 R11 4.7M Q2 9014 Q1 9014 123456789 123456789 A B C D E F G H A B C D E F G H VENTURE GLOBAL LTD. DESCRIPTION : Wireless Door Chime (Transmitter) DATE : 17/12/2009DRAW BY : W.W. LIU MODEL : DCX-800 PCB NO. : PB-915 REV. : CIRCUIT DIAGRAM

CENTRE OF TESTING SERVICE INTERNATIONAL OPERATE ACCORDING TO ISO/IEC 17025 FCC ID TEST REPORT TEST REPORT NUMBER : CGZ3100310-00658-O CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China. FCC ID: YAHDCX-800 opyright of this report is owned by Centre of Testing Service and may not be reproduced other than in full except with the written approval of the issuing Company. CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China Tel：+86-20-85543113 (32 lines) Fax：+86-20-38780406 Complaint line：+86-20-85533471 E-mail：[email protected] See Reverse For Terms And Conditions of Service Report No.: CGZ3100310-00658-O Page 1 of 20 TEST REPORT For FCC ID 47 CFR PART 15 OCT, 2009 Report Reference No. .................... CGZ3100310-00658-O Date of issue ..................................... 30 March 2010 Testing Laboratory Name .............. CETRE OF TESTING SERVICE CO., LTD Address............................................. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China. Testing location/ procedure .............. Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s name ............................Venture Global Limited Address.............................................Room 2506, 25/F., Star Centre, 443-451 Castle Peak Road, Kwai Chung, N.T. China. Test specification ........................... Standard ........................................... 47 CFR PART 15 OCT, 2009 Test Report Form No. ....................CTSEMC-1.0 TRF Originator.................................. CENTRE OF TESTING SERVICE CO., LTD Master TRF....................................... Dated 2009-01 CENTRE OF TESTING SERVICE CO., LTD. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the CENTRE OF TESTING SERVICE CO., LTD is acknowledged as copyright owner and source of the material. CENTRE OF TESTING SERVICE CO., LTD takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description.....................Wireless Door Chime Trade Mark....................................... VenGuard Manufacturer....................................Dixon industrial ltd. Model/Type reference...................... DCX-800 Ratings............................................. DC 3V Operating Frequency ........................ 914.842MHz/ FSK Result ............................................... Positive Compiled by: Supervised by: Approved by: Quty Liu / File administrators Jackson Zhang / Technique principalKevin Liang / Manager FCC ID: YAHDCX-800 opyright of this report is owned by Centre of Testing Service and may not be reproduced other than in full except with the written approval of the issuing Company. CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China Tel：+86-20-85543113 (32 lines) Fax：+86-20-38780406 Complaint line：+86-20-85533471 E-mail：[email protected] See Reverse For Terms And Conditions of Service Report No.: CGZ3100310-00658-O Page 2 of 20 FCC ID -- T E S T R E P O R T Test Report No. : CGZ3100310-00658-O 30 March 2010 Date of issue Type / Model............................ DCX-800 EUT.......................................... Wireless Door Chime Applicant........................... Venture Global Limited Address.................................... Room 2506, 25/F., Star Centre, 443-451 Castle Peak Road, Kwai Chung, N.T. China. Telephone................................ +852-3529 1206 Fax........................................... +852-3692 5980 Contact..................................... CHOW,HING SANG ADAM Manufacturer...................... Dixon industrial ltd. Address.................................... 18 Hedong San road, Jinxia, Changan Town, Dongguan, China Telephone................................ / Fax........................................... / Contact..................................... CHOW,HING SANG ADAM Test report holder................ Venture Global Limited Address.................................... Room 2506, 25/F., Star Centre, 443-451 Castle Peak Road, Kwai Chung, N.T. China. Telephone................................ +852-3529 1206 Fax........................................... +852-3692 5980 Contact..................................... CHOW,HING SANG ADAM Test Result according to the standards on page 3:Positive The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. FCC ID: YAHDCX-800 opyright of this report is owned by Centre of Testing Service and may not be reproduced other than in full except with the written approval of the issuing Company. CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China Tel：+86-20-85543113 (32 lines) Fax：+86-20-38780406 Complaint line：+86-20-85533471 E-mail：[email protected] See Reverse For Terms And Conditions of Service Report No.: CGZ3100310-00658-O Page 3 of 20 TABLE OF CONTENTS Description Page 1 TEST STANDARDS.......................................................................................................................................4 2 SUMMARY ....................................................................................................................................................4 2.1 GENERAL REMARKS .......................................................................................................................................4 2.2 FINAL ASSESSMENT .......................................................................................................................................4 3 EQUIPMENT…

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FCC ID: YAHDCX-800 opyright of this report is owned by Centre of Testing Service and may not be reproduced other than in full except with the written approval of the issuing Company. CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China Tel：+86-20-85543113 (32 lines) Fax：+86-20-38780406 Complaint line：+86-20-85533471 E-mail：[email protected] See Reverse For Terms And Conditions of Service Report No.: CGZ3100310-00658-O Page 1 of 2 1 TEST PHOTOGRAPHS 1.1. Photos of Radiated Emission Test (In Anechoic Chamber) 30~230MHz (X position) 230~1000MHz (X position) above 1000MHz (X position) FCC ID: YAHDCX-800 opyright of this report is owned by Centre of Testing Service and may not be reproduced other than in full except with the written approval of the issuing Company. CENTRE OF TESTING SERVICE CO., LTD. Building F, Dachuang industrial park, No.379, Zhongshan Dadao, Guangzhou, China Tel：+86-20-85543113 (32 lines) Fax：+86-20-38780406 Complaint line：+86-20-85533471 E-mail：[email protected] See Reverse For Terms And Conditions of Service Report No.: CGZ3100310-00658-O Page 2 of 2 1.2. Band Edge Compliance Test X position