ACEC4210B2.4GHz 20 Channel Cordless Phone w/ CID

E S P A ~ N O L E N G L I S H F R A N Ç A I S 2.4 GHz Cordless Telephone with Caller ID Featuring Digital Clarit y Power TM Technology C4210 ™ User Guide Safety Instructions .......................................................5 Features ......................................................................... 9 Getting Started ..........................................................11 Choosing a Location ...........................................11 Telephone Installation ........................................12 Battery Installation .............................................14 Handset Battery Charging ................................14 Low Battery .........................................................14 Battery Life ...........................................................15 Headset Jack .........................................................15 Belt Clip ................................................................15 Hearing Aid Compatibility .................................15 Feature Set Up ...........................................................16 Handset Features ................................................16 Set Up Mode ..................................................16 Digital Clarity Power ...................................19 Boost Clarity Power On/Off ......................19 Volume Control .............................................19 Tone Switch ....................................................19 Handset Ringer .............................................20 Pulse/Tone ......................................................20 Flash .................................................................20 Mute ................................................................20 Redial/Pause ...................................................20 Base Features .......................................................21 Ringer Volume ................................................21 Ringer Style ....................................................21 Visual Ringers .................................................21 Boost On/Off ................................................21 Battery Backup ..............................................22 TABLE OF CONTENTS Telephone Operations .............................................24 Placing a Call ........................................................24 Answering a Call ..................................................24 Last Number Redial ............................................24 Pause Feature .......................................................25 Temporary Tone ...................................................25 Lighted Key Pad ...................................................25 Page/Handset Locator ........................................25 Channel Operation .............................................26 Security Code ......................................................26 Memory Storage ........................................................26 Review Phonebook Information ......................26 Adding a Phonebook Number ..........................27 Dialing a Phonebook Entry ...............................28 Deleting a Stored Number ...............................28 Deleting All Stored Numbers ...........................28 Changing a Stored Number ..............................29 Adding the Emergency Number ......................29 Dialing the Emergency Number ......................30 Deleting the Emergency Number ...................30 Caller ID Operations ...............................................31 Caller ID Information ........................................31 Caller ID Review .................................................32 Saving Caller ID Information to Phonebook .33 Callback from Caller ID Information .............. 34 Delete Caller ID Information ...........................36 Maintenance and Care .............................................37 Troubleshooting .........................................................37 Regulatory Compliance ...........................................40 Warranty and Service ...............................................45 TABLE OF CONTENTS 5 IMPORTANT SAFETY INSTRUCTIONS When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electric shock and injury to persons including the following: 1. Read and understand all instructions. 2. Follow all warnings and instructions marked on the telephone. 3. Do not use this telephone near a bath tub, wash basin, kitchen sink or laundry tub, in a wet basement, near a swimming pool or any where else there is water. 4. Avoid using a telephone (other than a cord- less type) during a storm. There may be a remote risk of electrical shock from lightning. 5. Do not use the telephone to report a gas leak in the vicinity of the leak. 6. Unplug this telephone from the wall outlets before cleaning. Do not use liquid cleaners or aerosol cleaners on the telephone. Use a damp cloth for cleaning. 7. Place this telephone on a stable surface. Serious damage and/or injury may result if the telephone falls. 8. Do not cover the slots and openings on this telephone. This telephone should never be placed near or over a radiator or heat register. This telephone should not be placed in a built-in installation unless proper ventila- tion is provided. 9. Operate this telephone using the electrical voltage as stated on the base unit or in the owner’s manual. If you are not sure of the voltage in your home, consult your dealer or local power company. SAVE THESE INSTRUCTIONS 6 10. Do not place anything on the power cord. Install the telephone where no one will step or trip on the cord. 11. Do not overload wall outlets or extension cords as this can increase the risk of fire or electrical shock. 12. Never push any objects through the slots in the telephone. They can touch dangerous voltage points or short out parts that could result in a risk of fire or electrical shock. Never sp…

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Revision: 02.02 Page 9 of 38 C4210 Base Unit Block Diagram Revision: 02.02 Page 3 of 38 C4210 Handset Block Diagram Revision: 02.02 Page 14 of 38 RF Module (Base) Block Diagram Revision: 02.02 Page 15 of 38 RF Section (Handset) Block Diagram

INTERTEK TESTING SERVICES External Photos FCC ID: ACEC4210B external photos - 1 of 2 INTERTEK TESTING SERVICES External Photos FCC ID: ACEC4210B external photos - 2 of 2

C4210-2 Rev.1 10/09/2006 IC:1186C-C4210 FCC ID:ACEC4210B Model: C4210 19 x 7.5mm 16 x 10mm 9V DC 400 mA TEL ( ) 2 55 x 40mm 10.7mm 70255

INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 1 of 12 Base Unit assembly Base Unit Main PCB comp side (View 1) INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 2 of 12 Base Unit Main PCB comp side (View 2) Base Unit Main PCB comp side (View 3) INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 3 of 12 Base Unit Main PCB solder side Base Unit Telephone Jack and AC Jack front side INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 4 of 12 Base Unit Telephone Jack and AC Jack rear side Base Unit LED front side INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 5 of 12 Base Unit LED rear side Base Unit Charger Connect front side INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 6 of 12 Base Unit Charger connect rear side Base Unit Oscillator PCB comp side INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 7 of 12 Base Unit Oscillator PCB solder side INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 8 of 12 Handset assembly Handset Main PCB comp side (View 1) INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 9 of 12 Handset Main PCB comp side (View 2) Handset Main PCB display side (View 1) INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 10 of 12 Handset Main PCB display side (View 2) Handset Page Key front side INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 11 of 12 Handset Page Key rear side Handset Oscillator PCB comp side INTERTEK TESTING SERVICES Internal photos FCC ID: ACEC4210B internal photos - 12 of 12 Handset Oscillator PCB solder side

Revision: 02.02 Page 1 of 38 C4210 CIRCUIT DESCRIPTION CONTENT 1. Introduction 2. Functional Blocks of C4210 Handset 3. C4210 Handset Unit Circuit Block Description 4. Functional Blocks of C4210 Base unit 5. C4210 Base Unit Circuit Block Description 6. Functional Blocks of the RF Module 7. RF Module Circuit Block Description 8. C4210 Basic Operation (Base) 9. C4210 Basic Operation (Handset) 10. C4210 Basic Operation (Base and Handset) 11. Test Mode Operation 12. RF Channels Revision: 02.02 Page 2 of 38 1. Introduction C4210 is a 20 channel (2.4GHz) cordless telephone with CID (type I and II) and Message Waiting features. This unit is made up of two parts: a. A Handset unit. b. A Base unit. A security code of over 65,000 different combinations is used to prevent access by a different phone on a different line. This code is randomly and automatically changed each time the handset is placed in the cradle. 2. Functional Blocks of C4210 Handset The block diagram of C4210 handset unit is as shown below. It is made up of the following parts: 2.1 Keyboard Matrix, Switches and Function LED 2.2 MCU and MCU Interface 2.3 RF Module 2.4 Compander 2.5 Data Shaper 2.6 Charge and Control 2.7 Low Battery Detector 2.8 Buzzer 2.9 Audio Circuit Revision: 02.02 Page 4 of 38 3. C4210 Handset Unit Circuit Block Description 3.1 Keyboard Matrix, Switches and Function LED The keyboard consists of the following keys:
UP/DOWN – for menu operation
MODE – for menu operation
TALK – for On/Off hook control
ENTER – for voice mail operation
PROG – for memory program and dialing
1, 2, 3, 4, 5, 6, 7, 8, 9, *, 0, # – numeric keys
FLASH –– provides timed On/Off hook function
AMB – one touch memory key
RD/P – redials the last number or provides a pause during dialing
MUTE – turns on/off handset microphone The MUTE key is connected to the DSP_MODULE board. The push switches consist of the followings:
BOOST – for On/Off the receiver amplifier gain. This is connected to the DSP_MODULE board.
CH/DEL – for changing RF channel and CID/Memory operation The function of the slide switch:
RINGER ON/VIBRATOR/OFF – turns On/Off buzzer sound and vibrator.
TONE 1/2/3 – varies the receiver output response. This is connected to the DSP_MODULE board. The keyboard, push switches and slide switch are connected to Pins 84 to 94 and pin 97 of the MCU (MCU1). The jacks consist of the following:
HEADSET – for connection of an external microphone and receiver
NECKLOOP – for connection of an external receiver The function LEDs consist of the followings:
MICMUTE (LED19 - Red) – Located under the “MUTE” key. It is On/Off when microphone is Off/On.
BOOST (LED13 – RED) – Located under the “TALK” key. It is On/Off Revision: 02.02 Page 5 of 38 when the receiver amplifier extra gain is On/Off.
INUSE (LED13 – GREEN) – Located under the “TALK” key. It is On/Off when the handset is Off-hook/On-hook.
BACKLIGHT (LED1 – LED12 - Amber) – Located under the keyboard. On for a short time when any key is pressed
LCD backlight (LED20, LED21 – Green) – On for a short time when any key is pressed
NEWCALL (LED18 - Red) – Located under the “MODE” key. Flashes when there is incoming caller ID information to be reviewed.
VOICEMAIL (LED17 - Blue) – Located under the “ENTER” key. Blinks when there is voice mail available.
RINGER (LED16 - Red) – Located in the handset antenna. Flashes when the telephone line rings. Steady on/off when handset is off-hook/on-hook. These LEDs are controlled by pins 66, 91, 96, 98 and 99 of MCU. The MUTE and BOOST LEDs are controlled by the DSP module. The display format of the LCD is as shown below. The display is controlled by pins 12 – 65 of MCU. 3.2 MCU and MCU Interface The controller of the handset is MCU1. The frequency of the crystal used is 32.768 KHz. It controls the functions of the handset through the keyboard interface and signals from the base unit. The data to and from the base goes through pin 69 (data from base) and pin 71 (data to base). The phone number memories are stored in U13. 3.3 RF Section Revision: 02.02 Page 6 of 38 For operation and frequency see RF module section. It receives the PLL data through pins 4, 5, 6 from MCU pins 95, 93 and 94. The antenna located at the top of the unit and is permanent attached to RF module through a copper wire. 3.4 Compander A compander U11 is used for improving the S/N of transmit and receive audio signals. 3.5 Data Shaper The information which sent from base unit is recovered by the amplifier Q8, Q25 and Q26. 3.6 Charge and Control ZD2, D304, D305, D306, D307, D21, D22 provide over-voltage and polarity protection during battery charging. The charge signal is detected by pin 87 of the MCU. When the handset is put into the base cradle, a negative pulse is sent to pin 74 of the MCU. 3.7 Low Battery Detector The battery voltage is detected by U1-B and Q22. The signal is sent to pin 67 of MCU. 3.8 Buzzer and Vibrator Q3 is the buzzer signal amplifier and driven by the MCU pins 72. Q15 is the on/off control device for the vibrator. 3.9 Audio Circuit The DSP module checks the “TONE” switch, the “MUTE” key and the “BOOST” switch and turn on/off the MUTE and BOOST LEDs. Speech signal is picked up by the handset microphone MIC1 and sent to the gain control module U3 (DSP_MODULE) and sent to telephone line through the compander U11 and the RF module. The incoming speech is received through the RF module, the compander, the gain control module U3 (DSP_MODULE) and amplifier U2. When BOOST mode is On, extra gain is inserted in this audio path by U3 (DSP_MODULE). Revision: 02.02 Page 7 of 38 The headset jack is for external receiver and microphone. The neckloop jack is for an external hearing aid device. 3.10 DSP Module The DSP_Module controls the gain and frequency response of the speech signal. The brain of its operation is a TI DSP controller (U6) which provides the following functions: a. controls the CODEC (U2); b. scan the Timer (U5); c. scan the Ton…

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• The test results reported in this test report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited. • For Terms And Conditions of the services, it can be provided upon request. • The evaluation data of the report will be kept for 3 years from the date of issuance. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2741 1693 Website: www.hk.intertek-etlsemko.com Clarity, A Division of Plantronics, Inc. Application For Certification 2.4GHz 20 Channel Analog Modulation Cordless Phone with Caller ID (FCC ID: ACEC4210B) 06190691 KL/ Ann Choy October 18, 2006 INTERTEK TESTING SERVICES FCC ID: ACEC4210B i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1: General Description EXHIBIT 2: System Test Configuration EXHIBIT 3: Emission Results EXHIBIT 4: Equipment Photographs EXHIBIT 5: Product Labelling EXHIBIT 6: Technical Specifications EXHIBIT 7: Instruction Manual EXHIBIT 8: Security Code Information INTERTEK TESTING SERVICES FCC ID: ACEC4210B ii MEASUREMENT/TECHNICAL REPORT Clarity, A Division of Plantronics, Inc. - Model: C4210 FCC ID: ACEC4210B This report concerns (check one:) Original Grant X Class II Change Equipment Type : DXT - Cordless Telephone 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 [04-05-05 Edition] Provision. Report prepared by: Lam Chun Cheong, Kenneth Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Phone : 852-2173-8474 Fax: 852-2741-1693 INTERTEK TESTING SERVICES FCC ID: ACEC4210B iii 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 Radiated Emission on the Bandedge..................................................................... 17 3.7 Line Conducted Configuration Photograph - Base Unit .......................................... 18 3.8 Line Conducted Emission Data.............................................................................. 19 4.0 Equipment Photographs ........................................................................................ 22 5.0 Product Labelling ................................................................................................... 24 6.0 Technical Specifications ........................................................................................ 26 7.0 Instruction Manual ................................................................................................. 28 8.0 Security Code Information .................................................................................... 30 INTERTEK TESTING SERVICES FCC ID: ACEC4210B iv List of attached file Exhibit type File Description filename Test Report Test Report report.pdf Operation Description Technical Description descri.pdf Test Setup Photo Radiated Emission for Base config photos.doc Test Setup Photo Radiated Emission for Handset config photos.doc Test Report Emission Plot emission.pdf Test Setup Photo Conducted Emission config photos.doc Test Report Conducted Emission Test Result conduct.pdf External Photo External Photo external photos.doc Internal Photo Internal Photo internal photos.doc Block Diagram Block Diagram block.pdf Schematics Circuit Diagram circuit.pdf ID Label/Location Label Artwork and Location label.pdf User Manual User Manual manual.pdf INTERTEK TESTING SERVICES FCC ID: ACEC4210B 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: ACEC4210B 2 1.0 General Description 1.1 Product Description The C4210 is a 2.4GHz …

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INTERTEK TESTING SERVICES Radiated Emission on the Bandedge Plots FCC ID: ACEC4210B emission - 1 of 2 Plot B1A Plot B1B INTERTEK TESTING SERVICES Radiated Emission on the Bandedge Plots FCC ID: ACEC4210B emission - 2 of 2 Plot H1A Plot H1B

Report No.: 06190691 Talk Mode Ctrl No.: N/A PAGE 1 Tested By:Hong, Report No.:06190691 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement: x QP / + AV Meas Time: 1 s Subranges: 16 Acc Margin: 20dB Transducer No. Start Stop Name 2 1 9k 30M EW0699 12 9k 30M EW0192 0 10 20 30 40 50 60 70 80 90 dBuV 100 0.15 MHz 30 110 F15Q F15A Report No.: 06190691 Talk Mode Ctrl No.: N/A Tested By:Hong, Report No.:06190691 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement Results: no Results

INTERTEK TESTING SERVICES The Worst Case Configuration Photographs FCC ID: ACEC4210B config photos (radiated emission – base unit) - 1 of 1 Radiated Emission – Base Unit Front View Rear View INTERTEK TESTING SERVICES The Worst Case Configuration Photographs FCC ID: ACEC4210B config photos (radiated emission - handset) - 1 of 1 Radiated Emission – Handset Front View Rear View INTERTEK TESTING SERVICES The Worst Case Configuration Photographs FCC ID: ACEC4210B config photos (conducted emission) - 1 of 2 Conducted Emission Front View Right Side View INTERTEK TESTING SERVICES The Worst Case Configuration Photographs FCC ID: ACEC4210B config photos (conducted emission) - 2 of 2 Conducted Emission Left Side View