WF2DW-775BWIRELESS HEADSET (FIXED PART)

User’s Manual DW-775 Wireless Headset DW-775 Ear-Hook Type CONTENTS 1 Introduction 2 Features – headset and base unit 3 Features – base unit back 4 Setting up the unit 5 Battery Charging 6 Operation - Pairing your Headset and Base Unit - Checking for compatibility - Making and ending a call using a telephone with Lifter attached - Answering a call using a telephone with Lifter attached - Adjusting the TX(transmit) volume - Adjusting the RX(receive) volume - Muting the microphone on the headset - VoIP with PC(Optional) - Using multi-headsets - De-registering all headsets - Electronic Hook Switch 7 Replacing the battery 8 Technical features 9 Optional accessories INTRODUCTION Thank you for purchasing this product The unit has been developed using the latest wireless technology. With the unit we are confident you will experience a great level of comfort and freedom compared to using a standard telephone for making and receiving your calls. READ THE USER GUIDE The unit is very easy to use and set-up, although to get the best from your new purchase, we recommend you read this User Guide before getting down to any calls. UNPACKING Remove the unit from its packaging and ensure that along with this User Guide you have the correct mains plug fitted to the power supply unit for your supply and the correct specified accessories. Retain the packing carton for storage of your unit, and also in the unlikely event that the unit needs to be returned for service or repair. IMPORTANT Ensure that all electrical connections (including extension leads and interconnections between pieces of equipment) are properly made and in accordance with the relevant manufacturers instructions. 1. INTRODUCTION Do not continue to operate the equipment if you are in any doubt about it working normally, or if it is damaged in any way.  Switch off, withdraw the mains plug and consult your dealer. Do not allow electrical equipment to be exposed to rain or moisture. Never push anything into holes, slots or any other opening as this could result in fatal electrical shock. Never guess or take chances with electrical equipment. Do not open the telephone housing as doing so will void your warranty. WARNING Telephone headsets are capable of producing high levels of sound. Prolonged exposure to high sound levels can cause damage to hearing. - Ear-Hook 2. Feature – Base and Headset Unit CALL On/Off RX volume/Mute / Pairing IN-USE Charging LEDs Microphone IN-USE LED PC Selection S/W TEL Selection Pairing Mute LED - Plastic Band & Headset Holder 3. Feature – Base Unit Back Despite the sophistication behind the unit, the set-up and operation of the unit is remarkably simple. Please follow these steps in the following pages and refer to the drawings on the previous pages and you will be up and running with your new wireless headset in a very short time. Important: Before first use, please charge the headset fully for up to 2~3 hours to maximize your battery operational life. 1 Connect the TELEPHONE HANDSET TO THE UNIT Unplug the handset cord from your telephone base unit and plug it into the HANDSET port located on the back of unit. 2 Connect the TELEPHONE BASE UNIT TO THE UNIT Use the supplied telephone cord and connect on end to the HANDSET port on your telephone base unit. The other end should be connected to the TELEPHONE port located on the back of the unit. 3 Connect the POWER SUPPLY UNIT Plug the Power Supply Unit to the DC Input Jack on the back of the unit. Then connect the Power Supply Unit to your wall supply. 4. Setting up the Unit 4 Place the headset on the base unit to charge Important: Before first use, please charge the headset fully for up to 2~3 hours to maximize your battery operational life. ! Place the headset on the base unit to charge Always place the headset on the base unit when not in use to allow your headset to be charged and ensure the talk-time and life of the battery. Before first use, please charge the headset fully for up to 2~3 hours to maximize your battery operational life. Only use the base unit fitted with the original power supply unit to charge your headset, or damaged and incorrect operation may occur. When charging the LEDs on the front of the base unit will illuminate in WHITE. The following are the status and colors expected during the charging process. Charging Status LEDs status(BASE) Charged status Charged status with 3 white LEDs Charging Indicator light will flash while charging Full Charged 3 while LEDs are blinking at the same time 5. Battery Charging Before operation your headset must be paired with your base unit, this can be confirmed by the following check:  After power on the Base and Headset unit, it takes 5 seconds to be paired automatically. If your headset unit LED is constantly blinking, you need to pair your headset with your base unit. Headset Action Audio indicator Low battery 2 rapid beeps + 20 second pause Volume up/down 1 quick beep Volume max/min reached 3 beeps Incoming call with LIFTER melody Telephone line (open/close) 1 beep Headset out of range 1 beep + 10 second pause(repeats) Mute activation/deactivation 1 beep Base Action Visual indicator Pairing Mode In-use LED is blinking fast TX Mute Mute LED(RED) is ON In use In-use LED is blinking slowly 6. Operation 1 Power ON/OFF the headset 1. Power OFF - Press and hold the ON/OFF button on the headset until RED LED is blinking twice. Release the button. 2. Power ON - Press ON/OFF button on the headset shortly or place the headset on the Base unit. 2 Pairing your Headset and Base Unit 1. Press and hold the pairing button on left side of the front panel of the Base unit about 2 seconds. Release the button.(RED LED is blinking faster) 2. Press and hold the mute button on the headset until RED LED is blinking. Release the button. Check the LED status when you push the ON/OFF button of headset. BASE LED HEADSET LED IN USE Mode BLINKING OFF Stand-by Mode ON BLINKING every 10 seconds Not paired BLINKING OFF 3 Checking for comp…

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DASANELECTRON Co.,Ltd #307 ,Godowhadong, Gyunggi Techono Park, 1271-11 Sa-dong, Ansan-Si, South Korea Date: June 13, 2012 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern: I, the undersigned, hereby authorize KT Kang of KES Co., Ltd. and hereafter referred to as KES Co., Ltd., to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by KT Kang of KES Co., Ltd. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not 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. 853(a). In authorizing KES Co., Ltd. as our agent, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; DASANELECTRON Co.,Ltd #307 ,Godowhadong, Gyunggi Techono Park, 1271-11 Sa-dong, Ansan-Si, South Korea h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to the us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested; j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Title : R&D Director / By Kyung Ryong Hong REMARK: 1. This authorization letter will be sent along with your application when filing with the Certification Division. 2. Please follow the format and type it on company letterhead and send original to us. 3. Authorized signature must be in agreement with grantee code contact in FCC database.

723 Haean-ro, Sa-dong, Sangnok-gu, Ansan-si, 426-910 Korea Tel: +82-31-500-0133 http:://www.ktl.re.kr Fax : +82-31-500-0149 Test Lab Authorization Letter June 19 th , 2012 Timco Engineering, Inc. 849 N.W. State Road 45 P.O. Box 370 Newberry, FL32669, USA SUBJECT : DASAN ELECTRON - FCC ID: WF2DW-775B - JOB #: 1528KC12 & 1529KC12 Dear Sir/Madame, We, Korea Testing Laboratory, a FCC listed/accredited test lab, (address: 723 Haean-ro, Sa-dong, Sangnok-gu, Ansan-si, Gyeonggi-do, 426-910 KOREA) hereby confirm that the RF testings and SAR testing for the captioned jobs were performed at our facilities by our engineers. Sincerely, ----------------- Jeong-min Kim / Telecommunication Center Manager --------------------------------------------------------------------------------------------------------

DASANELECTRON Co.,Ltd #307 ,Godowhadong, Gyunggi Techono Park, 1271-11, Sa-dong, Ansan-Si, South Korea Date: May 17, 2012 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: WF2DW-775B 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 Schematics Diagram(s) CONF APPENDIX_ DW-775B _Schemetics.PDF Block diagram CONF APPENDIX_ DW-775B _Block diagram.PDF Operation description CONF APPENDIX_ DW-775B _Operation description.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, Kyung Ryong Hong

Federa Author 1435 O Colum Date: M SUBJ E To W h We, t h of Con compo Regar d Title : R DA ( # al Commu rization an Oakland M mbia, MD May 17, 20 ECT: FCC hom It Ma he undersig nformity p osite filing ds, R&D Direct ASAN 307 ,Godo Sa-don unications nd Evalua Mills Road 21046 12 C Applicat ay Concern gned, here procedure g. tor / By Kyu NELE owhadong, ng, Ansan- Commiss ation Divis d tion for (W n: eby attest to the cla s ung Ryong ECTR Gyunggi T Si, South K sion sion WF2DW-7 to the fact ss B comp Hong RON C Techono P Korea 775B) t that we w puter perip Co.,L Park, 1271- ) will apply pheral port Ltd -11, the Decla tion of thi aration is

www.kes.co.kr Model No.: DW-775B Page 1 of 1 EUT External photographs

Label and Location Model No.: TBO Page 1 of 1 . DASAN ELECTRON Co.,Ltd FCC ID: WF2DW-775B Model: DW-775B 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.

www.kes.co.kr Model No.: DW-775B Page 1 of 4 EUT Internal photographs www.kes.co.kr Model No.: DW-775B Page 2 of 4 www.kes.co.kr Model No.: DW-775B Page 3 of 4 www.kes.co.kr Model No.: DW-775B Page 4 of 4

NO REF NO TYPE NO / VALUE VPN DESCRIPTION Package Q'TY VENDOR 1 U200 IC-CPU IC-CPU PMB9616V V1.2FL VQFN-108 1 LANTIQ 2 U201 IC-FLASH EN29LV040A-70SCP 4MBIT TSOP-32 1 EON 3 U203 IC-EEPROM CAT24C64WI-GT3 64K,Vcc=1.8-5.5V,Ia=1 ㎃ SOP-8 1 ONSEMI 4 D200 DIODE S1G-13T SMD,Vrrm=400V,Ifsm=30V,Io=1A MELF 1 DIODES 5 D202 DIODE-PIN BAR64-05W Vr=150V,If=100 ㎃ ,Rth=340 ↓ SOT323 1 LANTIQ 6 X200 CRYSTAL 20.736MHz SX-1/SMD,LC=10 ㎊ ,FT=±10PPM SX-1 1 가람테크 7 C251,C252 0R5 (0.5pF) CL05C0R5CBNC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 2 SAMSUNG 8 C256,C257 0R75(0.75pF) CL05C0R75CBNC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 2 SAMSUNG 9 C255 1R5 (1.5pF) CL05C1R5CBNC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 1 SAMSUNG 9 C245 1R8 (1.8pF) CL05C1R8CBNC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 1 SAMSUNG 10 C244,C264,C266 2R7 (2.7pF) CL05C2R7CBNC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 3 SAMSUNG 11 C265 3R0 (3.0pF) CL05C3R0CBNC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 1 SAMSUNG 12 C201,C202,C203,C204,C205,C206,C207,C208,C209,C210,C211,C212,C213 3R3 (3.3pF) CL05C3R3CBNC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 13 SAMSUNG 13 C221,C230,C231,C232,C233,C235,C236,C247,C248,C249,C250,C253,C254,C258,C259,C262,C263,C268,C269 100 (10pF) CL05C100DBNC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 19 SAMSUNG 14 C200,C214,C215,C217,C218,C219,C222,C223,C225,C226,C227,C229,C234,C240,C241,C246,C260 104 (100nF) CL05F104ZONC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 17 SAMSUNG 15 C243 105(1uF) CL05F105ZONC Multilayer Ceramic Capacitor, 1005 CAP CHIP(1005) 1 SAMSUNG 16 C261 225 (2.2uF) CL10F225ZQNC Multilayer Ceramic Capacitor, 1608 CAP CHIP(1608) 1 SAMSUNG 17 C220,C224,C228,C239 475 (4.7uF) CL10F475ZQNC Multilayer Ceramic Capacitor, 1608 CAP CHIP(1608) 4 SAMSUNG 18 R204,R205,R206 000 (0ohm) RC1005J000CS Chip Resistor (1005) RES CHIP(1005) 3 SAMSUNG 19 R200,R201,R202 103 (10Kohm 5%) RC1005J103CS Chip Resistor (1005) RES CHIP(1005) 3 SAMSUNG 20 R207 273 (27Kohm 5%) RC1005J273CS Chip Resistor (1005) RES CHIP(1005) 1 SAMSUNG 21 R203 472 (4.7Kohm 5%) RC1005J472CS Chip Resistor (1005) RES CHIP(1005) 1 SAMSUNG 22 R208,R209 561 (560ohm 5%) RC1005J561CS Chip Resistor (1005) RES CHIP(1005) 2 SAMSUNG 23 L200 INDUCTOR CHIP,8.2nH SDCL1005C8N2S ±0.3,DCR=0.22 Ω ,IDC1=0.4A,1005 1005 1 24 L201,L202,L203,L204 INDUCTOR CHIP,5.6nH SDCL1005C5N6S ±0.3,DCR=0.22 Ω ,IDC1=0.4A,1005 1005 4 DW775_Base COSIC module 25 COSIC BASE PCB COSIC BASE REV 1.0 FR4, 4layers, 1.0T 1 DW775_COSIC MODULE Total

Page 1 of 1 FCC§15.319(i)&2.1091-RF RADIATION EXPOSURE Limit According to FCC §15.319(i) and §1.1307(b)(1), systems operating under the provisions of this section Shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) Frequency Range(MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm2) Averaging Time (minute) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 30 1.34-30 842/f 2.19/f *(180/f\2\) 30 30-300 27.5 0.073 0.2 30 300-1500 / / f/1500 30 1500-100,000 / / 1.0 30 f=frequency in MHz *=Plane-wave equivalent power density MPE Calculation Predication of MPE limit at a given distance S=PG/4πR 2 Where: S=power density (in appropriate units, e.g.mW/cm 2 P=power input to the antenna (in appropriate units, e.g., mW); G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna (appropriate units, e.g., cm); Frequency (MHz) Antenna Gain Conducted Evaluation Distance (cm) Power Density (mW/cm 2 ) MPE Limit (mW/cm 2 ) (dBi) (numeric) (dBm) (mW) 1921.536 0.16 1.04 17.68 58.61 20 0.0121 1 1924.992 0.16 1.04 17.52 56.49 20 0.0117 1 1928.448 0.16 1.04 17.40 54.95 20 0.0113 1 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.

Report No.: 12-2341-022-02 Page 1 of 48 Pages 723, Haean-ro, Sa-dong, Sangnok-gu, Ansan-si, Gyeonggi-do, 426-910 KOREA Tel: +82-31-500-0133 http://www.ktl.re.kr Fax: +82-31-500-0149 FP-236-09 TEST REPORT 1. Applicant Name : DASANELECTRON Co.,Ltd. Address : #307, Godowhadong, Gyunggi Techono Park, 1271-11, Sa-dong , Ansan-Si, Gyeonggi-Do, Korea 2. Products Name : Wireless Headset (Fixed Part) Model : DW-775B Manufacturer : DASANELECTRON Co.,Ltd. 3. Test Standard/Method : FCC Part 15 Subpart D/ ANSI C63.17 4. Test Results : Positive 5. Use of Report : - 6. Date of Application : May 25, 2012 7. Date of Issue : June 13, 2012 Tested by Approved by ` Jong-gon Ban Jeong-min Kim Telecommunication Center Senior Engineer Telecommunication Center Manager The test results contained apply only to the test sample(s) supplied by the applicant, and this test report shall not be reproduced in full or in part without approval of the KTL in advance. Report No.: 12-2341-022-02 Page 2 of 48 Pages 723, Haean-ro, Sa-dong, Sangnok-gu, Ansan-si, Gyeonggi-do, 426-910 KOREA Tel : +82-31-500-0133 http://www.ktl.re.kr Fax: +82-31-500-0149 FP-236-09 TABLE OF CONTENTS 1. GENERAL INFORMATIONS .................................................................................................. 3 2. SUMMARY OF TEST RESULTS ............................................................................................ 5 3. TEST RESULTS ..................................................................................................................... 7 3.1 ANTENNA REQUIREMENTS ................................................................................................................................................. 7 3.2 DIGITAL MODULATION TECHNICS ...................................................................................................................................... 8 3.3 EMISSION BANDWIDTH ........................................................................................................................................................ 9 3.4 POWER ADJUSTMENT FOR ANTENNA GAIN ................................................................................................................... 11 3.5 RADIATED OUT OF BAND EMISSION ................................................................................................................................ 12 3.6 PEAK TRANSMIT POWER .................................................................................................................................................. 13 3.7 POWER SPECTRAL DENSITY ............................................................................................................................................ 16 3.8 AUTOMATICALLY DISCONTINUED TRANSMISSION........................................................................................................ 18 3.9 IN-BAND EMISSIONS .......................................................................................................................................................... 19 3.10 OUT-OF-BAND EMISSIONS ................................................................................................................................................ 21 3.11 CARRIER FREQUENCY STABILITY ................................................................................................................................... 28 3.12 FRAME REPETITION STABILITY ........................................................................................................................................ 29 3.13 FRAME PERIOD AND JITTER ............................................................................................................................................. 30 3.14 MONITORING TIME ............................................................................................................................................................. 31 3.15 MONITORING THRESHOLD ................................................................................................................................................ 32 3.16 MAXIMUM TRANSMIT TIME ................................................................................................................................................ 33 3.17 SYSTEM ACKNOWLEDGEMENT ........................................................................................................................................ 34 3.18 LEAST INTERFERED CHANNEL & CHANNEL CONFIRMATION ...................................................................................... 35 3.19 RANDOM WAITTING ............................................................................................................................................................ 36 3.20 MONITORING BANDWIDTH ................................................................................................................................................ 37 3.21 MAXIMUM REACTION TIME ............................................................................................................................................... 40 3.22 MONITORING ANTENNA .................................................................................................................................................... 42 3.23 DUPLEX CONNECTIONS .................................................................................................................................................... 43 3.24 ALTERNATIVE MONITORING INTERVAL FOR CO-LOCATED DEVICE ............................................................................ 44 4. SELF DECLARATION .......................................................................................................... 45 5. TEST SET UP ....................................................................................................................... 46 6. TEST EQUIPMENT .........................................................................................................…

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FCC ID : WF2DW-775B Test Setup Photos