NC82-673810 Channel Cordless Phone with Caller ID

6738BBOX.SCH-1 - Wed Jun 19 09:40:44 2002 6738HBOX.SCH-1 - Wed Jun 19 09:41:52 2002

THIS THIS DEVICE DEVICE COMPLIES COMPLIES WITH WITH PART PART 15 15 OF OF THE THE FCC FCC RULES.RULES. OPERATION OPERATION IS IS SUBJECT SUBJECT TO TO THE THE FOLLOWING FOLLOWING TWO TWO CONDITIONS: CONDITIONS: (1) (1) THIS THIS DEVICE DEVICE MAY MAY NOT NOT CAUSE CAUSE HARMFULHARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANYINTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT THAT MAY MAY CAUSE CAUSE UNDESIRED UNDESIRED OPERATION.OPERATION. PRIVACY PRIVACY OF OF COMMUNICATIONS COMMUNICATIONS MAY MAY NOT NOT BE BE ENSUREDENSURED WHEN WHEN USING USING THIS THIS PHONE.PHONE. ATLINKS ATLINKS MODEL: EX26738XXX-A MODEL: EX26738XXX-A HACHAC CORDLESS TELEPHONE USE ONLY ATLINKS POWER SUPPLY COMPLIS WITH 47 CFR PART68 REQUIREMENT Reg. No. US : 5GGXXXXX2-6738 FCC ID : NC82-6738 CORDLESS TELEPHONE USE ONLY ATLINKS POWER SUPPLY COMPLIS WITH 47 CFR PART68 REQUIREMENT Reg. No. US : 5GGXXXXX2-6738 FCC ID : NC82-6738 CHK./DATE: DWN./DATE: FINISH: SHEET: APP./DATE: TITLE: UNIT: SCALE: MODEL NO.: PART NO.: DRAWING NO.: PROJECT NO.: A4 QTY: MATERIAL: COLOUR: BACKGROUND_____WHITE TEXT______________BLACK SIZE: 55.5mm X 43mm STOCK: MIRROR COATED STICKER EX 6738A Base Label Drawing Xxxx LABEL Billy 1 OF 1 05 Jun,02 432-xxxxx-xxxxx 1:1 MM 6738A-XXX-XX00 0 REV.ZONE R E V I S I O N S DATE DRAWING RELEASED DESCRIPTION 05Jun,2002 111000000...000mmmmmm PPPHHHOOOTTTOOO RRREEEFFF. .. OOONNNLLLYYY QC PASSED Made in ChinaMMaaddee iinn CChhiinnaa CCHHKK..//DDAATTEE:: DDWWNN..//DDAATTEE:: FFIINNIISSHH:: SSHHEEEETT:: AAPPPP..//DDAATTEE:: TTIITTLLEE:: UUNNIITT:: SSCCAALLEE:: MMOODDEELL NNOO..:: PPAARRTT NNOO..:: DDRRAAWWIINNGG NNOO..:: PPRROOJJEECCTT NNOO..:: AA44 QQTTYY:: MMAATTEERRIIAALL:: COLOUR: COLOUR: BACKGROUND_____WHITEBACKGROUND_____WHITE TEXT______________BLACKTEXT______________BLACK SIZE: SIZE: 30mm 30mm X X 9mm 9mm STOCK: STOCK: MIRROR MIRROR COACOATED TED STICKERSTICKER EX EX 6738A6738A Handset Handset Label Label DrawingDrawing XxxxXxxx LABELLABEL Billy Billy 1 OF 11 OF 1 05 05 Jun,02Jun,02 432-xxxxx-xxxxx432-xxxxx-xxxxx 1:11:1 MMMM 6738A-XXX-XX006738A-XXX-XX00 00 REV.REV.ZONEZONE R R E E V V I I S S I I O O N N SS DATEDATE DRAWING DRAWING RELEASEDRELEASED DESCRIPTIONDESCRIPTION 14Jun,200214Jun,2002 1111000000...000mmmmmm PPPHHHOOOTTTOOO RRREEEFFF. .. OOONNNLLLYYY M O D E L : E X 2 6 7 3 8 X X X - A F C C I D : N C 8 2 - 6 7 3 8 S / N O : X X X X X X X X M O D E L : E X 2 6 7 3 8 X X X - A F C C I D : N C 8 2 - 6 7 3 8 S / N O : X X X X X X X X

Internal photosFCC ID: NC82-6738 Base assembly (View 1) Base assembly (View 2) Internal photosFCC ID: NC82-6738 Base Main PCB comp s ide Base Main PCB solder side Internal photosFCC ID: NC82-6738 Ha ndse t asse mbly Handset Main PCB comp side (View 1) Internal photosFCC ID: NC82-6738 Handset Main PCB display side Ha ndse t Oscillato r PCB co mp s ide Internal photosFCC ID: NC82-6738 Ha ndse t Oscillato r PCB solde r side

CCT TELECOM R&D LIMITED U\..\EX26738XXX-A_circuit_description.doc Page - 1 - of 3 Circuit Description: Model: EX26738XXX-A Handset : 1. Receiving Path The receiving path is established by below sections. Low Noise Amplifier (LNA) FM signal is filtered by the SAW duplexer, and input to tuning amplifier Q4 before output to COMBO U1 1 st mixer. Mixer Mixer is included in COMBO U1. Local Oscillator (LO) is controlled through external coil L6. The first IF (10.7MHz) is filtered by a ceramic filter CF2. IF amplifier IF amplifier is built in U1. Amplified IF is filtered again by a ceramic filter CF1, then input to FM demodulator also inside COMBO. FM demodulator and expander The IF demodulated by quadrate coil COMBO, then the recovered audio is input to the expander for de-emphasis, before output to the handset speaker though audio amplifier. 2. Receiving Path The receiving path is established by below sections. Microphone amplifier and compressor Audio frequency picked up by handset microphone is amplified by internal mic amplifier of U1, then input to compressor for pre-emphasis, before input to the modulator. (TxVCO). Modulator and TxVCO The transmit VCO is internal at U1 and controlled by external coil L6. Both audio and data signal input to the transmit VCO will cause a frequency modulation progress. CCT TELECOM R&D LIMITED U\..\EX26738XXX-A_circuit_description.doc Page - 2 - of 3 RF power amplifier FM signal is amplifier by Q1 and fit to the antenna though SAW duplexer. Base unit 1. Receiving Path The receiving path is established by below sections. Low Noise Amplifier (LNA) FM signal is filtered by the SAW duplexer, and input to tuning amplifier Q2 before output to COMBO U1 1 st mixer. Mixer Mixer is included in COMBO U1. Local Oscillator (LO) is controlled through external coil L7. The first IF (10.7MHz) is filtered by a ceramic filter CF1. IF amplifier IF amplifier is built in U1. Amplified IF is filtered again by a ceramic filter CF2, then input to FM demodulator also inside COMBO. FM demodulator and expander The IF demodulated by quadrate coil COMBO, then the recovered audio is input to the expander for de-emphasis, before output to the final AF amplifier for line interfacing. 2. Receiving Path The receiving path is established by below sections. Mic amplifier and compressor Audio frequency input from the line interface is amplified by internal mic amplifier of U1, then input to compressor for pre-emphasis, before input to the modulator. (TxVCO). Modulator and TxVCO The transmit VCO is internal at U1 and controlled by external coil L7. Both audio and data signal input to the transmit VCO will cause a frequency modulation progress. CCT TELECOM R&D LIMITED U\..\EX26738XXX-A_circuit_description.doc Page - 3 - of 3 RF power amplifier FM signal is amplifier by Q1 and fit to the antenna though SAW duplexer. 3. Telephone line interface The telephone line interface circuit is established by below sections. Audio power amplifier Q7&Q8 are built as power amplifiers, according to high current output requirement for line interface. Line control Q3&Q5 is the opening for line seizure, which is controlled by Q4. Ring detect circuit U2 are used as a differential amplifier for accurately detecting the ring signal, which is input though one 10nf capacity C79 as high voltage isolation from the telephone line. EX26738XXX-A digital security coding system: The handset and base unit of model EX26738XXX-A will exchange a randomly Generated 16-bit (total of 65536) discrete digital security code every time The handset is put on the charging cradle of base unit.

6738BBOX.SCH-1 - Wed Jun 19 09:40:44 2002 6738HBOX.SCH-1 - Wed Jun 19 09:41:52 2002

6738BN00.SCH-1 - Thu May 30 15:50:06 2002 6738BCU0.SCH-1 - Thu May 30 15:49:03 2002 6738HK0.SCH-1 - Thu May 30 15:51:51 2002

• The test results rep orted in this rep ort shall refer only to the samp le actually tested and shall not refer or be deemed to refer to bulk from which such a samp le may be said to have been obtained. • This rep ort shall not be rep roduced excep t in full without p rior authorization form Intertek Testing Services Limit ed FCC ID: NC82-6738 Inte rte k Te sting Se rvice s Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2741 1693 CCT Telecom (HK ) Limited Application For Certification 46/49MHz 10 Channel Analog Modulation Cordless Phone with Caller ID (FCC ID: NC82-6738) WO# 02065161 TL/Ann Choy June 14, 2002 INTERTEK TESTING SERVICES FCC ID: NC82-6738 i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1 :General Description EXHIBIT 2 :System Test Configuration EXHIBIT 3 :Emission Results EXHIBIT 4 :Equipment Photographs EXHIBIT 5: Operating Bandwidth EXHIBIT 6: Equipment Photographs EXHIBIT 7 :Product Labelling EXHIBIT 8 :Technical Specifications EXHIBIT 9 :Instruction Manual EXHIBIT 10 :Security Code Information INTERTEK TESTING SERVICES FCC ID: NC82-6738 ii MEASUREMENT/TECHNICAL REPORT CCT Telecom (HK) Limited - MODEL: EX26738XXX-A FH26738XXX-A LA26738XXX-A FCC ID: NC82-6738 This report concerns (check one:) Original Grant X Class II Change Equipment Type : Cordless Telephone (example : computer, modem, transmitter, etc.) Deferred grant requested per 47 CFR 0.457(d)(1)(ii)?Yes No X If yes, defer until : date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37 ?Yes No X If no, assumed Part 15, Subpart C for intentional radiator - the new 47 CFR [ 12-18-01 Edition ] Provision. Report prepared by:Tommy Leung Intertek Testing Services. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Phone :852-2173-8538 Fax:852-2741-1693 INTERTEK TESTING SERVICES FCC ID: NC82-6738 iii List of attached file Exhibit typeFile Descriptionfilename Test ReportTest Reportreport.doc Operation DescriptionTechnical Descriptiondescri.pdf Test Setup PhotoRadiated Emission for Baseconfig photos.doc Test Setup PhotoRadiated Emission for Handsetconfig photos.doc Test ReportConducted Emission Test Resultconduct.pdf Test ReportBase Bandwidth Plotbsbw.pdf Test ReportHandset Bandwidth Plothsbw.pdf External PhotoExternal Photoexternal photos.doc Internal PhotoInternal Photointernal photos.doc Block DiagramBlock Diagramblock.pdf SchematicsCircuit Diagramcircuit.pdf ID Label/LocationLabel Artwork and Locationlabel.pdf User ManualUser Manualmanual.pdf User ManualFCC Informationfcc information.pdf INTERTEK TESTING SERVICES FCC ID: NC82-6738 iv Table of Contents 1.0 General Description ....................................................................................................... 2 1.1 Product Description.................................................................................................... 2 1.2 Related Submittal(s) Grants........................................................................................ 3 1.3 Test Methodology....................................................................................................... 3 1.4 Test Facility................................................................................................................ 3 2.0 System Test Configuration ............................................................................................. 5 2.1 Justification................................................................................................................. 5 2.2 EUT Exercising Software ........................................................................................... 5 2.3 Support Equipment List and Description ................................................................... 6 2.4 Measurement Uncertainty .......................................................................................... 7 2.5 Equipment Modification............................................................................................. 7 3.0 Emission Results ............................................................................................................. 9 3.1 Field Strength Calculation ........................................................................................ 10 3.2 Radiated Emission Configuration Photograph - Base Unit ...................................... 11 3.3 Radiated Emission Data - Base Unit ........................................................................ 12 3.4 Radiated Emission Configuration Photograph - Handset ......................................... 14 3.5 Radiated Emission Data - Handset ........................................................................... 15 3.6 Line Conducted Configuration Photograph - Base Unit .......................................... 17 3.7 Line Conducted Emission Data - Base Unit ............................................................. 18 4.0 Frequency Deviation ....................................................................................................... 21 4.1 Base Unit .................................................................................................................. 22 4.2 Handset .................................................................................................................... 24 5.0 Operating Bandwidth ...................................................................................................... 27 5.1 Base Unit .................................................................................................................. 28 5.2 Handset .................................................................................................................... 30 6.0 Equipment Photographs .............................................................................................. 33 7.0 Product Labelling ...................…

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The Worst Case Configuration Photographs FCC ID: NC82-6738 Radiated Emission – Base Front View Re ar Vie w The Worst Case Configuration Photographs FCC ID: NC82-6738 Radiated Emission – Handset Front View Re ar Vie w The Worst Case Configuration Photographs FCC ID: NC82-6738 Conducted Emission Front View Re ar Vie w The Worst Case Configuration Photographs FCC ID: NC82-6738 Conducted Emission Side View