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EW780-8180-001.9GHz Digital Modulation Baby Monitor

VTech Telecommunications Ltd
1.9GHz Digital Modulation Baby Monitor - FCC ID EW780-8180-00 - VTech Telecommunications Ltd
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Application Details

Equipment Class
PUB - Part 15 Unlicensed PCS Base Station
Date of Grant
May 22, 2011
Application Purpose
Original Equipment
Date of Application
May 22, 2011
Equipment Note
1.9GHz Digital Modulation Baby Monitor
Frequency Range
1921.53600000 - 1928.44800000
Company
VTech Telecommunications Ltd
Country
Hong Kong

Documents & Files

Select a file to view

Users Manual

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Attestation Statements

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Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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RF Exposure Info

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Test Report

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Test Setup Photos

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

www.vtechbabymonitors.com Models: DM221/DM221-2 DECT baby monitor User’s manual i Congratulations on purchasing your new VTech product. Before using this product, please read Important safety instructions on the following page of this manual. This manual has all the feature operations and troubleshooting necessary to install and operate your new VTech product. Please review this manual thoroughly to ensure proper installation and operation of this innovative and feature rich VTech product. For support, shopping, and everything new at VTech, visit our website at www.vtechbabymonitors.com. In Canada, please visit www.vtechcanada.com. Product introduction DM221 is a DECT baby monitor which consists of one baby unit (DM221 BU) and one parent unit (DM221 PU). DM221-2 consists of one baby unit (DM221-2 BU) and two parent units (DM221-2 PU). ii Important safety instructions When using your equipment, basic safety precautions should always DGHQNNQYGFVQTGFWEGVJGTKUMQHsTGGNGEVTKEUJQEMCPFKPLWT[KPENWFKPI the following: Follow all warnings and instructions marked on the product. Unplug this product from the wall outlet before cleaning. Do not use liquid or aerosol cleaners. Use a damp cloth for cleaning. Do not use this product near water such as near a bath tub, wash bowl, kitchen sink, laundry tub or swimming pool, or in a wet basement or shower. Use only the adapters included with this product. Incorrect adapter polarity or voltage can seriously damage the product. Baby unit power adapter: Input 100-120V AC 60 Hz; output: 6V DC 400 mA Parent unit power adapter: Input 100-120V AC 60 Hz; output: 6V DC 400 mA Use only the batteries indicated in this manual. Do not dispose of DCVVGTKGUKPCsTG6JG[OC[GZRNQFG%JGEMYKVJNQECNEQFGUHQT possible special disposal instructions. Do not place this product on an unstable table, shelf, stand or other unstable surfaces. Slots and openings in the back or bottom of this produc t are provided for ventilation. To protect them from overheating, these openings must not be blocked by placing the product on a soft surface such as a bed, sofa or rug. This product should never be placed near or over a radiator or heat register. This product should not be placed in any area where proper ventilation is not provided. This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply in your home, consult your dealer or local power company. Do not allow anything to rest on the power cord. Do not install this product where the cord may be walked on or crimped. 0GXGTRWUJQDLGEVUQHCP[MKPFKPVQVJKURTQFWEVVJTQWIJVJGUNQVU because they may touch dangerous voltage points or create a short circuit. Never spill liquid of any kind on the product. To reduce the risk of electric shock, do not disassemble this product, but take it to an authorized service facility. Opening or TGOQXKPIRCTVUQHVJGRTQFWEVQVJGTVJCPURGEKsGFCEEGUUFQQTU OC[GZRQUG[QWVQFCPIGTQWUXQNVCIGUQTQVJGTTKUMU+PEQTTGEV reassembling can cause electric shock when the product is subsequently used. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. iii Important safety instructions (continued) &QPQVQXGTNQCFYCNNQWVNGVUQTWUGCPGZVGPUKQPEQTF The power adapters are intended to be correctly oriented in a XGTVKECNQTƀQQTOQWPVRQUKVKQP6JGRTQPIUCTGPQVFGUKIPGFVQ hold the plug in place if it is plugged into a ceiling, under-the-table or cabinet outlet. 14.CAUTION6JGTGOC[DGCTKUMQHGZRNQUKQPKHCYTQPIV[RGQH  battery is used for the Parent unit. Use only the supplied rechargeable battery pack or replacement battery pack. Dispose of used battery according to the information in The RBRC ® seal in the user’s manual. This product is not intended for use as a medical monitor. Adult setup is required. You should test the sound reception every time you turn on the units or move one of the components. 2GTKQFKECNN[GZCOKPGCNNEQORQPGPVUHQTFCOCIG Be aware of possible loss of privacy: Conversations may be picked up by other nursery monitors, cordless phones, scanners, etc. SAVE THESE INSTRUCTIONS 12. 13. 15. 16. 17. 18. 19. iv Warning Read this user’s manual carefully before you use the product and save it for future reference. This baby monitor is intended as an aid. It is not a substitute for responsible and proper adult supervision and should not be used as such. Never immerse any part of the baby monitor in water or any other liquid. Check that the voltage indicated on the included adapters corresponds to the voltage of your power outlets before you connect the product. Only use the included adapters to connect the parent unit and the baby units to your power outlets. Do not cut off the adapters to replace them with other plugs, as this causes a hazardous situation. If the adapters are damaged, please only replace them with the same type in order to avoid a hazard. For the correct type of adapter, please visit our website at www.vtechbabymonitors.com or call 1 (800) 595-9511. In Canada, go to www.vtechcanada.com or call 1 (800) 267-7377. Never use the baby monitor in moist places or close to water. In order to prevent electric shock, do not open the housing of the DCD[WPKVQTRCTGPVWPKVGZEGRVHQTVJGDCVVGT[EQORCTVOGPVEQXGTU The product is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack QHGZRGTKGPEGCPFMPQYNGFIGWPNGUUVJG[JCXGDGGPIKXGP supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the product. 7UGQPN[VJGURGEKsGFV[RGQHDCVVGT[6QRWTEJCUGTGRNCEGOGPV battery, visit our website at www.vtechbabymonitors.com or call 1 (800) 595-9511. In Canada, go to www.vtechcanada.com or call 1 (800) 267-7377. If the product will not be used for a long time, unplug the power adapters from the wall outlets, and …

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Cover Letter(s)

VTech Telecommunications Ltd Apr. 02, 2011 To whom it may concern, Declarations FCC ID: EW780-8180-00 IC: 1135B-80818000 I, the undersigned, hereby declare that 1. The device does not use the provisions of 47CFR 15.323 (c) (6), random waiting mechanism is not used in this system. 2. The provisions of 47CFR 15.323 (c) (10) and 47CFR 15.323 (c) (11) are not used to extend the range of spectrum occupied over space or time for the purpose of denying fair access to spectrum to other devices. 3. The Baby unit will act as the initiating device, which will initiate the establishment of the duplex connection. 4. The device complies with the provisions of 47CFR 15.319(f). The device shall automatically discontinue transmission in case of either absence of information to transmit or operational failure. These provisions are not intended to preclude transmission of control and signaling information or use of repetitive codes used by certain digital technologies to complete frame or burst intervals. The following table explains the reaction of device in case of either absence of information to transmit or operational failure after a connection of its companion device is established. Circumstances Reaction of Baby Unit 1 Switch-off companion device B 2 On hook by companion device NA 3 Remove power from companion device B 4 Switch-off device A 5 On hook device NA 6 Remove power from device A A – Connection is terminated and, transmission ceases. B – Connection is terminated but device transmits control or signaling information. C – Connection is terminated but companion device transmits control or signaling information. NA – Not applicable represents the device does not contain a hook switch or a power off switch. If you have questions or need further information, please contact the undersigned. Regards, Samson Man Approbation Supervisor

Cover Letter(s)

Appendix B1 Letter of Agency for FCC Certification April 23, 2011 To whom it may concern, Letter of Agency I, an officer of VTech Telecommunications Limited do hereby authorize Intertek Testing Services (Mr. Ken Sit/Mr. Melvin Nip) to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification of equipment under Part 15 and/or Part 95 of the FCC Rules until further notice. I further certify that no party (as defined in §1.2002(b) of CFR 47, 2004) to this application, including myself, is subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C., 862. Regards, Samson Man Approbation Supervisor

Cover Letter(s)

VTech Telecommunications Ltd Apr. 02, 2011 To whom it may concern, Request for Permanent Confidentiality Under FCC Part 15 Certification FCC ID: EW780-8180-00 Request is hereby submitted by VTech Telecommunications Ltd. to withhold permanently from public review certain portions of the application for equipment certification for the referenced FCC identifiers. This request for confidentiality is made pursuant to 47 CFR § 0.457(d) and 0.459 of the FCC Rules. In particular, the following sections of the application are to be kept permanently confidential and VTech Telecommunications Ltd. reserves the right to discern which parties can obtain access to these information: • Schematics • Detailed Block diagrams • Detailed Operational/Functional Description The rationale for request for confidentiality is as followings: This information represents intellectual property of VTech Telecommunications Ltd . and it is subject to competition. We have invested considerable time and materials in research and development to produce the referenced product. Disclosure of the permanently confidential portions of this application to competitors would not only give them significant competitive advantages in developing similar products, but would also disclose successful implementation of unpublished, leading edge technology developed by us. If you have questions or need further information, please contact the undersigned. Regards, Samson Man Approbation Supervisor

External Photos

INTERTEK TESTING SERVICES External Photos FCC ID: EW780-8180-00 IC: 1135B-80818000 external photos - 1 of 1 External Photo - Front External Photo - Rear

Internal Photos

INTERTEK TESTING SERVICES Internal Photos FCC ID: EW780-8180-00 IC: 1135B-80818000 Internal photos - 1 of 2 Internal Photo - 1 Internal Photo - 2 INTERTEK TESTING SERVICES Internal Photos FCC ID: EW780-8180-00 IC: 1135B-80818000 Internal photos - 2 of 2 Internal Photo - 3 Internal Photo – 4

RF Exposure Info

INTERTEK TESTING SERVICES FCC ID: EW780-8180-00 RF exposure info - 1 of 1 For Maximum Permissible Exposure (MPE) evaluation of the Baby unit, the maximum power density at 20 cm from this mobile transmitter shall be less than the General Population / Uncontrolled MPE limit in OET Bulletin 65. For the Baby unit of tested model of DM221 BU, the maximum field strength measured (FS) was 111.7 dBμV/m. The distance (D) between the antenna and the equipment under test (EUT) was 3 meters. And the maximum source-based time- averaging duty factor in four Parent units operation is 20.8%. From these data, the exposed power density at a distance (R) of 20cm from the center of radiation of the antenna can be calculated according to OET Bulletin 65 as follow: The radiated power (EIRP) = (FS*D) 2 / 30 = 44.37 mW The radiated (EIRP) source-based time-averaging output power = (44.37 * 0.208) mW = 9.23 mW The power density at 20 cm from the antenna = EIRP / 4πR 2 = 0.0018 mW cm -2 In the frequency range of 1,500 - 100,000MHz, the MPE limit is 1.0 mWcm -2 for general population and uncontrolled exposure. As the measured power density at 20cm from the transmitter is lower than the MPE limit, the compliance to the MPE limit can be ensured by indicating the minimum 20cm separation between the transmitter's radiating structures and body of the user or nearby persons. The following RF exposure statement is proposed to be included in the user manual: “ FCC RF Radiation Exposure Statement Caution: To maintain compliance with the FCC’s RF exposure guidelines, place the Baby unit at least 20cm from nearby persons.”

Test Report

INTERTEK TESTING SERVICES 26dB Emission Bandwidth Plots FCC ID: EW780-8180-00 26bw - 1 of 2 A0 Baby unit, Lowest channel, Traffic carrier Baby unit, Highest channel, Traffic carrier INTERTEK TESTING SERVICES 26dB Emission Bandwidth Plots FCC ID: EW780-8180-00 26bw - 2 of 2 A0 Baby unit, Lowest channel, Dummy carrier Baby unit, Highest channel, Dummy carrier

Test Report

Report no.: HK11031231-1 Model: DM2 21 BU - (Baby Unit) Mode: Listen from Parent unit Adaptor: Ten Pao Ctrl No.: N/A 6DB AC 150 kHz30 MHz dBμV dBμV 1 PK CLRWR 2 AV CLRWR SGL TDS RBW 9 kHz MT 1 s PREAMP OFFAtt 10 dB AUTO 1 MHz10 MHz 0 10 20 30 40 50 60 70 80 90 100 CF15MAV CF15MQP Date: 8.APR.2011 19:59:17 Report no.: HK11031231-1 Model: DM2 21 BU - (Baby Unit) Mode: Listen from Parent unit Adaptor: Ten Pao Ctrl No.: N/A EDIT PEAK LIST (Final Measurement Results) Trace1: CF15MQP Trace2: CF15MAV Trace3: --- TRACE FREQUENCY LEVEL dBμV DELTA LIMIT dB 1 Quasi Peak 483 kHz 33.18 L1 -23.10 1 Quasi Peak 568.5 kHz 28.53 L1 -27.46 1 Quasi Peak 897 kHz 25.48 L1 -30.51 1 Quasi Peak 1.365 MHz 27.20 L1 -28.79 1 Quasi Peak 1.7745 MHz 27.37 L1 -28.62 Date: 8.APR.2011 19:59:09

Test Report

INTERTEK TESTING SERVICES Unwanted Emission Inside The Sub-Band Plots FCC ID: EW780-8180-00 inband - 1 of 2 A0 Baby unit, Lowest channel, Traffic carrier Baby unit, Highest channel, Traffic carrier INTERTEK TESTING SERVICES Unwanted Emission Inside The Sub-Band Plots FCC ID: EW780-8180-00 inband - 2 of 2 A0 Baby unit, Lowest channel, Dummy carrier Baby unit, Highest channel, Dummy carrier

Test Report

INTERTEK TESTING SERVICES Peak Transmit Power Plots FCC ID: EW780-8180-00 IC: 1135B-80818000 peaktp - 1 of 3 A0 Baby unit, Lowest channel, Traffic carrier Baby unit, Middle channel, Traffic carrier INTERTEK TESTING SERVICES Peak Transmit Power Plots FCC ID: EW780-8180-00 IC: 1135B-80818000 peaktp - 2 of 3 A0 Baby unit, Highest channel, Traffic carrier Baby unit, Lowest channel, Dummy carrier INTERTEK TESTING SERVICES Peak Transmit Power Plots FCC ID: EW780-8180-00 IC: 1135B-80818000 peaktp - 3 of 3 A0 Baby unit, Middle channel, Dummy carrier Baby unit, Highest channel, Dummy carrier

Test Report

INTERTEK TESTING SERVICES Power Spectral Density Plots FCC ID: EW780-8180-00 psd - 1 of 2 A0 Baby unit, Lowest channel, Traffic carrier Baby unit, Highest channel, Traffic carrier INTERTEK TESTING SERVICES Power Spectral Density Plots FCC ID: EW780-8180-00 psd - 2 of 2 A0 Baby unit, Lowest channel, Dummy carrier Baby unit, Highest channel, Dummy carrier

Test Report

- The test report only allows to be revised within the retention period unless further standard or the requirement was noticed. - This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com VTech Telecommunications Ltd. Application For 47 CFR Part 15 Certification RSS-213 Issue 2 Equipment Certification Unlicensed Personal Communication Service Devices/ 2 GHz License-exempt Personal Communications Service Devices Baby Monitor (Baby Unit) FCC ID: EW780-8180-00 Model: DM221 BU, DM221-2 BU, DM221-X BU IC: 1135B-80818000 Model: DM221 BU, DM221-2 BU Test Report Number: HK11031231-1 Issue Date: May 11, 2011 MN/ss INTERTEK TESTING SERVICES Test Report Number: HK11031231-1 Page 1 of 60 FCC ID: EW780-8180-00 IC: 1135B-80818000 Table of Contents 1.0 Summary of Test Results........................................................................................ 4 2.0 General Description................................................................................................. 7 2.1 Product Description ................................................................................................. 7 2.2 Technical Description .............................................................................................. 7 2.3 Test Methodology.................................................................................................... 8 2.4 Test Facility............................................................................................................. 8 3.0 System Test Configuration.................................................................................... 10 3.1 Justification ........................................................................................................... 10 3.2 Conducted Emission Test Configuration ................................................................ 11 3.3 Conducted Monitoring and Operational Test Configuration.................................... 11 3.4 EUT Exercising Software....................................................................................... 11 3.5 Details of EUT and Description of Peripherals....................................................... 12 3.6 Measurement Uncertainty ..................................................................................... 13 4.0 Measurement Results............................................................................................ 15 4.1 Antenna Requirement........................................................................................... 15 4.2 Digital Modulation Techniques............................................................................... 15 4.3 Emission Bandwidth.............................................................................................. 16 4.4 Directional Gain of the Antenna ............................................................................. 17 4.5 Peak Transmit Power ............................................................................................ 18 4.6 Power Spectral Density ......................................................................................... 19 4.7 Automatic Discontinuation of Transmission............................................................ 20 4.8 Unwanted Emission Inside the Sub-Band .............................................................. 21 4.9 Emissions Outside the Sub-Band .......................................................................... 22 4.9.1 Radiated Emissions Configuration Photographs ................................................. 23 4.9.2 Radiated Emissions Data ................................................................................... 23 4.9.3 Field Strength Calculation................................................................................... 30 4.9.4 Average Factor Calculation and Transmitter ON Time Measurements ................ 31 4.10 Radiated Emissions from Receiver ...................................................................... 32 4.10.1 Radiated Emission Configuration Photographs ................................................. 33 4.10.2 Radiated Emissions Data ................................................................................. 33 4.11 AC Power Line Conducted Emissions ................................................................. 36 4.11.1 AC Power Line Conducted Emissions Configuration Photographs .................... 37 4.11.2 AC Power Line Conducted Emissions Data ...................................................... 37 4.12 Radio Frequency Radiation Exposure.................................................................. 38 4.13 Radio Frequency Exposure Compliance.............................................................. 38 4.14 Frame Repetition Stability .................................................................................. 39 4.15 Frame Period and Jitter ...................................................................................... 40 4.16 …

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Test Setup Photos

INTERTEK TESTING SERVICES The Worst Case Configuration Photographs – Mode: Transmission FCC ID: EW780-8180-00 IC: 1135B-80818000 config photos (radiated emission – baby unit) - 1 of 1 Radiated Emission – Baby Unit (with adaptor “Ten Pao”) Front View Rear View INTERTEK TESTING SERVICES The Worst Case Configuration Photographs – Mode: Listen from Parent Unit FCC ID: EW780-8180-00 IC: 1135B-80818000 config photos (conducted emission) - 1 of 2 Conducted Emission (with adaptor “Ten Pao”) Front View Right Side View INTERTEK TESTING SERVICES The Worst Case Configuration Photographs – Mode: Listen from Parent Unit FCC ID: EW780-8180-00 IC: 1135B-80818000 config photos (conducted emission) - 2 of 2 Conducted Emission (with adaptor “Ten Pao”) Left Side View

Contact Information

Applicant

Michael Tsui(Approbation Supervisor)
[email protected]852-26805398Fax: 852-26805252

Technical Contact

Intertek Testing Services Hong Kong LtdMelvin Nip
[email protected]2173-8888

Flat D 5/F Garment Centre · Kowloon · Hong Kong

Non-Technical Contact

Intertek Testing Services Hong Kong LtdMelvin Nip
[email protected]2173-8888

Test Firm

Intertek Testing Services Hong Kong Ltd.Billy Chow
[email protected]85221738528Fax: 85227410521

Technical Specifications

#Rule PartsFrequency RangePower Output
115D1.92 GHz - 1.93 GHz84.00 mW
Confidentiality
Long Term
Grant Notes
Power listed is conducted. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.

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