YZEI-SCOPETXWIRELESS TRANSMITTER

Wireless Device Manual Name of the Part Digital Stethoscope Power Switch Wireless Transmitter Audio Jack LED Power Button LED Audio Jack [Transmitter] [Receiver] [LED Indicator] Low Battery Link Recharge Link Recharge Low Battery 1. Product Content The device is consist of wireless transmitter and receiver with using 2.4GHz ISM BAND frequency. The transmitter is made up RF ONE CHIP, CPU, 오디오A/D Converter, Tact Switch, Antenna, LED indicator, Audio JACK, Lithium- Polymer rechargeable battery, the receiver is composed RF ONE CHIP, CPU, Audio D/A Converter, USB Driver IC, Slide Switch, Antenna, LED indicator, USB connector, Audio JACK, Power ON/OFF switch, Lithium- Polymer Rechargeable Battery as well. The device transmits the auscultation signal to earphone or USB through cooperation of transmitter and receiver from digital stethoscope. Also, it is conveniently designed for pairing automatically when you power on transmitter and receiver. 2. Product part 2-1. Wireless Transmitter ①Power Part -. The power circulation is designed for minimizing consumption of electric current and noise with using voltage regulator which is supplied each circuit with 3.7v Lithium- polymer battery -. The device can be recharged with USB. ② Wireless Transmitter Part -. Used RF ONE CHIP -. Used internal antenna -. Used LED indicator to confirm operation of product. ③ Audio control Part -. The device is digitalizing the analogue signal to digital stethoscope with using A/D Converter 2-2. Wireless Receiver ①Power Part -. The power circulation is designed for minimizing consumptionof electric current and noise with using voltage regulator to supply each circuit with 3.7v Lithium- polymer battery. -. The device can be recharged with USB. ② Wireless Receiver Part -. Wireless Transmitter Part -. Used RF ONE CHIP -. Used internal antenna -. Used LED indicator to confirm operation of product. ③ Audio control Part - This part converts the analogue signal into digital audio signal through D/A Converter which is connected to Computer or Earphone with USB Controller IC. 3. Specification 3-1) TX SPECIFICATION zOperational Frequency : 2.404 GHz ~ 2.479 GHz zMaximum TX Power : 10dBm(10㎽) z2.4GHz RF Single chip GFSK Transceiver zCHANNEL : Adaptive Frequency Hopping zSupply Voltage : 3.7V Lithium Polymer Battery zSupply Current : 0.4㎃ (Stand By), 41㎃ (LINK ON) zAntenna : CHIP ANTTENA 3-2) RX SPECIFICATION zOperational Frequency : 2.404 GHz ~ 2.479 GHz zRX Sensitivity( 1Mbps) : -80dBm z2.4GHz RF Single chip GFSK Transceiver zCHANNEL : Adaptive Frequency Hopping zSupply Voltage : USB PC Voltage & 3.7V Lithium Polymer Battery zSupply Current : 96mA zAntenna : CHIP ANTTENA 3-3) SPECIFICATION zAUDIO SAMPLING RATE : 32KHz zAUDIO BAND : 20Hz ~ 16KHz zOPERATING RANGE : above the 10m zLED Indicator -.LINK ON/OFF LED -.LOW Battery LED -.Charger Display LED zOperating temperatures : -20 °C ~ +55 °C 5. How to solve Question1 : The transmitter LED LAMP is not working on it. 1. Please check the low battery and recharge. 2. Check a Switch button on it. 3. Check the connecting status of input port. Question2 : The receiver LED LAMP is not working on it. 1. Please check the low battery and recharge. 2. Check a LED LAMP status. Question3 : The external device is not working. 1. Check the output port and connecting status. 2. Check a cable and jack. 4. How to use 1.Connect a audio jack from the bottom of digital stethoscope and receiver. 2.Connect a receiver to USB connector of computer or earphone jack. 3. Power switch on of transmitter and receiver. 4. Check the LED Link indicator. If the LED light is on it, it is already paired. 5. Test a output with operating computer or earphone. ① The device(i-scope TX) transmits the auscultation signal to USB(i-scope RX) by wireless. ② Listen to the auscultation signal using a earphone and a PC. PC Earphone Wireless <i-scope TX> <i-scope RX> ① ② Federal Communication Commission Interference Statement 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 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 con-nected. • Consult the dealer or an experienced radio/TV technician for help. IMPORTANT NOTE: FCC RF Radiation Exposure Statement: This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOIDTHE USER�S AUTHORITY TO OPERATE THE EQUIPMENT.

DONGJIN MEDICAL Co., Ltd. E-Mail : [email protected] Tel. : 82-70-7700-5500 Fax. : 82-33-733-9888 December 09, 2010 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: YZEI-SCOPETX Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Part List CONF APPENDIX – i-scope TX - Part List.PDF Schematics Diagram(s) CONF APPENDIX – i-scope TX – Schemetics.PDF Block diagram CONF APPENDIX – i-scope TX – Block diagram.PDF The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Aum Jae-Hack / President

www.kes.co.kr EUT External Photographs

www.kes.co.kr FCC ID label and Location Label

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RadiAnt 1 A4(210X297mm) SPECIFICATION Product Name MULTILAYER CHIP ANTENNA Customer INGSTEL Model Name IA203 Customer Code. Provider RadiAnt Part Code. RC0801-0000AA Buyer SubmittedChecked Approved RadiAnt Submitted Checked Checked Approved RadiAnt 2 A4(210X297mm) – Table of Contents – 1. Product History---------------------------------------------------------------------------------- 3 2. Specifications -------------------------------------------------------------------------------------4 3. Electric Performance Data --------------------------------------------------------------------5 4. Drawing ----------------------------------------------------------------------------------------9 5. Construction -----------------------------------------------------------------------------------9 6. Packing ---------------------------------------------------------------------------------------10 7. Certification of RoHS -------------------------------------------------------------------------11 RadiAnt 3 A4(210X297mm) 1. Product History LIST NO Data Front After Change REV 1 2009.04.01 Approval 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 RadiAnt 4 A4(210X297mm) 2. Specifications TYPE Specifications Frequency 2.4 ~ 2.483GHz Dimension 5.2 x 2.0 x 1.2 (mm) Impedance 50Ω Polarization Linear V.S.W.R 2.0 Gain Typical Gain = 2 dBi Operating Temperature -25 ~ +85°C Weight 0.03g <IA203> RadiAnt 5 A4(210X297mm) 3. Electric Performance Data 3.1 S11 3.2 Empty Area RadiAnt 6 A4(210X297mm) 3.3 GAIN PATTERN (X-Z PLANE) RadiAnt 7 A4(210X297mm) 3.4 GAIN PATTERN (Y-Z PLANE) RadiAnt 8 A4(210X297mm) 3.5 GAIN PATTERN (X-Y PLANE) RadiAnt 9 A4(210X297mm) 4. Drawing 5. Construction RadiAnt 10 A4(210X297mm) 6.Packing RadiAnt 11 A4(210X297mm) 7.Certification of RoHS RadiAnt 12 A4(210X297mm) RadiAnt 13 A4(210X297mm)

PRELIMINARY PRODUCT SPECIFICATION Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989 Revision: 2.0 Page 1 of 76 April 2005 2.4GHz wireless audio streamer FEATURES APPLICATIONS • Low cost 0.18u CMOS process, 36 pin 6x6mm QFN package • Compact Disk, CD quality headset • Single chip 2.4GHz RF transceiver • MP3 / Mini Disk headset • 4Mbit/sec RF link • Speakers • Input sample rate up to 96kHz, 24bits • Surround speakers • Output sample rate up to 48kHz, 16bits • Microphone • Programmable latency • Musical instruments • Quality of Service engine supporting up to 1.536 Mbit/s LPCM audio • Audio streaming from PC soundcard to HiFi system • S/PDIF interface for direct connection to PC soundcard and surround receivers • Download MP3 files from PC to MP3 player • I2S interface for glueless audio support • Compressed video streaming • SPI or 2-wire interface for up to 12 kbit/sec peak bi- directional digital control/AUX data • On chip optional 2:1 compression • On chip voltage regulators • Few external components • Uses global 2.4GHz band GENERAL DESCRIPTION nRF24Z1 gives you a true single chip system for CD quality audio streaming of up to16 bit 48 kHz audio with support of up to 24 bit 96 kHz input. I2S and S/PDIF interfaces are supported for audio I/O. Seamless interfacing of low cost A/D and D/A for analog audio input and output. SPI or 2-wire (I2C compatible) serial interfaces for control. The circuit has embedded voltage regulators, giving maximum noise immunity and operation from a single 2.0V to 3.6V supply. QUICK REFERENCE DATA Parameter Value Unit Minimum supply voltage 2.0 V Temperature range -20 to +80 °C Peak supply current in transmit @ -5dBm output power 15 mA Peak supply current in receive mode 32 mA Supply current in power down mode 4 μA Maximum transmit output power 0 dBm Audio sample rate 32, 44.1 or 48 kbps Audio resolution 16 bit Receiver sensitivity -80 dBm Table 1-1 nRF24Z1 quick reference data. nRF24Z1 PRELIMINARY PRODUCT SPECIFICATION nRF24Z1 wireless audio streamer Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989 Revision: 2.0 Page 2 of 76 April 2005 ORDERING INFORMATION Type number Description Version nRF24Z1 36L QFN 6x6 mm A nRF24Z1-EVKIT Evaluation kit 1.0 Table 1-2 nRF24Z1 ordering information. PRELIMINARY PRODUCT SPECIFICATION nRF24Z1 wireless audio streamer Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989 Revision: 2.0 Page 3 of 76 April 2005 TABLE OF CONTENTS FEATURES............................................................................................................................1 APPLICATIONS....................................................................................................................1 GENERAL DESCRIPTION...................................................................................................1 QUICK REFERENCE DATA................................................................................................1 ORDERING INFORMATION...............................................................................................2 TABLE OF CONTENTS........................................................................................................3 1 Pin Assignment...............................................................................................................6 2 Pin Function....................................................................................................................7 3 Glossary of terms............................................................................................................8 4 Architectural Overview...................................................................................................9 4.1 Audio transmitter..................................................................................................11 4.1.1 I2S audio input..............................................................................................11 4.1.2 S/PDIF audio input.......................................................................................12 4.1.3 Serial control (slave) interfaces.....................................................................12 4.1.4 Master interfaces...........................................................................................12 4.1.5 Direct data input pins....................................................................................13 4.1.6 Interrupt output.............................................................................................13 4.2 Audio Receiver.....................................................................................................13 4.2.1 I2S audio output............................................................................................14 4.2.2 S/PDIF audio output.....................................................................................15 4.2.3 Master interfaces...........................................................................................15 4.2.4 Serial control (slave) interfaces.....................................................................15 4.2.5 Parallel port and PWM..................................................................................15 4.3 Blocks common to audio transmitter and receiver................................................16 4.3.1 XTAL Oscillator...........................................................................................16 4.3.2 Radio Transceiver.........................................................................................16 4.3.3 Quality of Service engine..............................................................................16 4.3.4 Audio compression / Decompression...........................................................17 4.3.5 Power...................................................…

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www.kes.co.kr Page 1 of 2 RF EXPOSURE EVALUATION Applicant : DONGJIN MEDICAL Co., Ltd. Applicant Address : 1654-1 Donghwa-ri Munmak-eup Wonju-si, Gangwon-do, Korea Kind of Product : Wireless Receiver Equipment model name : i-scope TX Antenna type : Chip antenna Gain: 2dBi Frequency Range : 2404 ~ 2479 MHz Number of channels : 38 Channel Spacing : 2 MHz www.kes.co.kr Page 2 of 2 ** MPE Calculations ** The EUT will only be used with a separation of 20 centimeters or greater between the antenna and the body of the user. The MPE calculation for this exposure is shown below. The peak radiated output power (EIRP) is calculated as follows: EIRP = P + G EIRP = 8.12 dBm Where, P = Power input to the antenna (mW) G = Power gain of the antenna (dBi) The numeric gain(G) of the antenna with a gain specified in dB is determined by: G = Log -1 (dB antenna gain / 10) G = Log -1 (2/ 10) G = 1.58 Power density at the specific separation: S = PG/(4R 2 π) S = (6.12 * 1.58 / (4 * 20 2 * π) S = 0.0013 mW/cm 2 Where, S = Maximum power density (mW/cm 2 ) P = Power input to the antenna (mW) G = Numeric power gain of the antenna R = Distance to the center of the radiation of the antenna (20cm = limit for MPE) The Maximum permissible exposure (MPE) for the general population is 1 mW/cm 2 . The power density at 20cm does not exceed the 1 mW/cm 2 limit. Estimated safe separation: R = √(PG / 4π) R = √(6.12 * 1.58/ 4π) R = 0.72 cm Where, P = Power input to the antenna (mW) G = Numeric power gain of the antenna R = Distance to the center of the radiation of the antenna (20cm = limit for MPE)

www.kes.co.kr Test Report No.: TK-FR10050 Model No: i-scope TX Page 1 of 31 This Report shall not be reproduced except in full without the written approval of THRU-KES CO.,LTD. TEST REPORT For FCC Test Report No. : TK-FR10020 Date of Issue : 12/09/2010 FCC ID : YZEI-SCOPETX Description of Product : Wireless Transmitter Model No. : i-scope TX Applicant : DONGJIN MEDICAL Co., Ltd. 1654-1 Donghwa-ri Munmak-eup Wonju-si, Gangwon-do, Korea Manufacturer : DONGJIN MEDICAL Co., Ltd. 1654-1 Donghwa-ri Munmak-eup Wonju-si, Gangwon-do, Korea Standards : FCC Part 15.247 Test Date : 11/29/2010 – 12/09/2010 Test Results : PASS FAIL The test results relate only to the items tested. Tested by: Reviewed by: Kyu-Chul Shin KT Kang Test Engineer Technical Manager Date:12/09/2010 Date: 12/09/2010 THRU-KES CO.,LTD. 477-6, Hager-Ri, Yoju-Up, Yoju-Gun Kyunggi-Do,469-803, Korea Tel: +82-31-425-6200 / Fax: +82-31-424-0450 www.kes.co.kr Test Report No.: TK-FR10050 Model No: i-scope TX Page 2 of 31 This Report shall not be reproduced except in full without the written approval of THRU-KES CO.,LTD. TABLE OF CONTENTS 1.0 General Product Description ...............................................................................3 1.1 Tested Frequency .............................................................................................3 1.2 Tested Mode ....................................................................................................3 1.3 Model Differences .............................................................................................4 1.4 Device Modifications .........................................................................................4 1.5 Peripheral Devices ............................................................................................4 1.6 Calibration Details of Equipment Used for Measurement .........................................5 1.7 Test Facility......................................................................................................5 1.8 Laboratory Accreditations and Listings .................................................................5 2.0 Summary of tests .............................................................................................6 2.1 Technical Characteristic Test...............................................................................7 2.1.1 Carrier Frequency Separation .......................................................................7 2.1.2 Number of Hopping Frequencies ...................................................................9 2.1.3 20 dB bandwidth ...................................................................................... 11 2.1.4 Time of Occupancy (Dwell Time) ................................................................. 13 2.1.5 Maximum peak Conducted Output Power...................................................... 15 2.1.6 Band-edge............................................................................................... 18 2.1.7 Field Strength of Emissions ........................................................................ 23 2.1.8 AC Conducted Emissions............................................................................ 28 APPENDIX A – Test Equipment Used For Tests ................................................................ 31 www.kes.co.kr Test Report No.: TK-FR10050 Model No: i-scope TX Page 3 of 31 This Report shall not be reproduced except in full without the written approval of THRU-KES CO.,LTD. 1.0 General Product Description Equipment model name : i-scope TX Serial number : Prototype EUT condition : Pre-production, not damaged Antenna type : chip antenna Gain 2dBi Frequency Range : 2402 ~ 2480 MHz RF output power : 6.12 dBm Peak Conducted Number of channels : 38 Type of Modulation(Data Rate) : GFSK Power Source : DC 3.7V 1.1 Tested Frequency LOW MID HIGH Frequency (MHz) 2404 2444 2479 1.2 Tested Mode - Pre-Scan has been conducted to determine the worst-case mode from all possible combinations between available modulations, data rates and antenna ports (if EUT with antenna diversity architecture). - Following channel(s) was (were) selected for the final test as listed below. Tested Ch Modulation Technology Modulation Type Low,Mid, High FHSS GFSK www.kes.co.kr Test Report No.: TK-FR10050 Model No: i-scope TX Page 4 of 31 This Report shall not be reproduced except in full without the written approval of THRU-KES CO.,LTD. 1.3 Model Differences Not applicable 1.4 Device Modifications The following modifications were necessary for compliance: Not applicable 1.5 Peripheral Devices Device Manufacturer Model No. Serial No. FCC ID or DoC EUT DONGJIN MEDICAL Co., Ltd. i-scope TX - - Notebook F U J I T S U L T D LIFEBOOK S-5582 434230343466 DoC www.kes.co.kr Test Report No.: TK-FR10050 Model No: i-scope TX Page 5 of 31 This Report shall not be reproduced except in full without the written approval of THRU-KES CO.,LTD. 1.6 Calibration Details of Equipment Used for Measurement Test equipment and test accessories are calibrated on regular basis. The maximum time between calibrations is one year or what is recommended by the manufacturer, whichever is less. All test equipment calibrations are traceable to the Korea Research Institute of Standards and Science (KRISS), therefore, all test data recorded in this report is traceable to KRISS. 1.7 Test Facility The measurement facility is located at 477-6, Hager-Ri, Yoju-Up, Yoju-Gun Kyunggi- Do,469-803, Korea. Tel: +82-31-883-5092/Fax: +82-31-883-5169. The sites are constructed in conformance with the requirements of ANSI C63.7, ANSI C63.4 and CISPR Publication 22. 1.8 Laboratory Accreditations and Listings Country Agency Scope of Accreditation Logo USA FCC 3 & 10 meter Open Area Test Sites and one conducted site to perform FCC Part 15/18 measurements. 343818 KOREA KCC EMI (10 meter Open Area Test Site and two conducted sites) Radio(3 & 10 meter Open Area Test Sites and one conducted site) KR100 Canada…

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www.kes.co.kr Test Setup Photos and Configuration Conducted Voltage Emissions www.kes.co.kr Radiated Electric Field Emissions