Nokia NSW-5 Series User manual

Technical Documentation
Programs After Market Services (PAMS)
Copyright 2000. Nokia Mobile Phones Ltd. All Rights Reserved.


[NMP Part No. 0275422]
NSW-5 SERIES
CELLULAR
PHONES
NSW–5 ISSUE 1 10/2000

NSW-5
Foreword PAMS Technical Documentation
Issue 1 10/00
Page 2 Nokia Mobile Phones Ltd.
AMENDMENT RECORD SHEET
Amendment
Number Date Inserted By Comments
Issue1 10/2000 OJuntune

NSW-5
Foreword
PAMS Technical Documentation
Issue 1 10/00 Page 3 Nokia Mobile Phones Ltd.
NSW-5
SERIES CELLULAR PHONES
SERVICE MANUAL
CONTENTS:
Foreword
General Information
System Module
Product Variants NSW–5
Service Software Instructions
Service Tools
Disassembly/Troubleshooting Instructions
Non–serviceable Accessories

NSW-5
Foreword PAMS Technical Documentation
Issue 1 10/00
Page 4 Nokia Mobile Phones Ltd.
IMPORTANT
This document is intended for use by qualified service personnel only.
Company Policy
Ourpolicyisofcontinuousdevelopment;detailsofalltechnicalmodificationswill
be included with service bulletins.
Whileeveryendeavourhasbeenmadetoensuretheaccuracyofthisdocument,
some errors may exist. If any errors are found by the reader, NOKIA MOBILE
PHONES Ltd should be notified in writing.
Please state:
Title of the Document + Issue Number/Date of publication
Latest Amendment Number (if applicable)
Page(s) and/or Figure(s) in error
Please send to: Nokia Mobile Phones Ltd
PAMS Technical Documentation
PO Box 86
24101 SALO
Finland

NSW-5
Foreword
PAMS Technical Documentation
Issue 1 10/00 Page 5 Nokia Mobile Phones Ltd.
Warnings and Cautions
Please refer to the phone’s user guide for instructions relating to operation,
care and maintenance including important safety information. Note also the
following:
Warnings:
1. CARE MUST BE TAKEN ON INSTALLATION IN VEHICLES
FITTED WITH ELECTRONIC ENGINE MANAGEMENT
SYSTEMS AND ANTI–SKID BRAKING SYSTEMS. UNDER
CERTAIN FAULT CONDITIONS, EMITTED RF ENERGY CAN
AFFECT THEIR OPERATION. IF NECESSARY, CONSULT THE
VEHICLE DEALER/MANUFACTURER TO DETERMINE THE
IMMUNITY OF VEHICLE ELECTRONIC SYSTEMS TO RF
ENERGY.
2. THE HANDPORTABLE TELEPHONE MUST NOT BE OPERATED
IN AREAS LIKELY TO CONTAIN POTENTIALLY EXPLOSIVE
ATMOSPHERES EG PETROL STATIONS (SERVICE STATIONS),
BLASTING AREAS ETC.
3. OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT,
INCLUDING CELLULAR TELEPHONES, MAY INTERFERE WITH
THE FUNCTIONALITY OF INADEQUATELY PROTECTED
MEDICAL DEVICES. CONSULT A PHYSICIAN OR THE
MANUFACTURER OF THE MEDICAL DEVICE IF YOU HAVE
ANY QUESTIONS. OTHER ELECTRONIC EQUIPMENT MAY
ALSO BE SUBJECT TO INTERFERENCE.
4. CLASS 1 LASER PRODUCT. See IEC60825–1 specification:
825–1; 5: Labelling, 5.1: General, 5.2: Class 1
Cautions:
1. Servicing and alignment must be undertaken by qualified
personnel only.
2. Ensure all work is carried out at an anti–static workstation and that
an anti–static wrist strap is worn.
3. Ensure solder, wire, or foreign matter does not enter the telephone
as damage may result.
4. Use only approved components as specified in the parts list.
5. Ensure all components, modules screws and insulators are
correctly re–fitted after servicing and alignment. Ensure all cables
and wires are repositioned correctly.
6. All PC’s used with NMP Service Software for this produce must be
bios and operating system ”Year 2000 Compliant”.

NSW-5
Foreword PAMS Technical Documentation
Issue 1 10/00
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PAMS Technical Documentation
NSW-5 Series Transceivers
Issue 1 10/00 Nokia Mobile Phones Ltd.
General Information

NSW-5
General Information PAMS Technical Documentation
Page 2 Issue 1 10/00
Nokia Mobile Phones Ltd.
AMENDMENT RECORD SHEET
Amendment
Number Date Inserted By Comments
Issue 1 10/2000 OJuntune

NSW-5
General Information
PAMS Technical Documentation
Page 3
Issue 1 10/00 Nokia Mobile Phones Ltd.
CONTENTS
Page No
Product Selection 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handportables 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Desktop Option 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product and Module List 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Specifications of Transceiver NSW-5 7. . . . . . . . . . . .
Mechanical Characteristics 7. . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature range 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Connector 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Contacts 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NSW-5
General Information PAMS Technical Documentation
Page 4 Issue 1 10/00
Nokia Mobile Phones Ltd.
Product Selection
Handportables
The NSW-5 is a dualband/dualmode radio transceiver unit for the US
TDMA 800/1900MHz networks.
1.
2.
3. 4.
5.
6.
ACP-7E
ACP-7U
ACP-7C
ACP-7X
ACP-7H
ACP-7A
Item Name: Type code: Material code:
1. Transceiver (See variant Appendices)
2. Standard battery (Li-Ion 900 mAh) BLS-2S 0670300
3. AC Travel Charger (Euro plug) 207-253 Vac ACP-7E 0675144
4. AC Travel Charger (US plug) 198-242 Vac ACP-7U 0675143
5. AC Travel Charger (UK plug) 207-253 Vac ACP-7X 0675145
AC Travel Charger (UK plug) 180-220 Vac ACP-7H 0675146
6. AC Travel Charger (Australia) 216-264 Vac ACP-7A 0675148

NSW-5
General Information
PAMS Technical Documentation
Page 5
Issue 1 10/00 Nokia Mobile Phones Ltd.
Desktop Option
The desktop option allows the user to charge the handportable and spare
battery from mains.
1.
3.
4.
5.
2.
6.
7.
8.
9.
Item Name: Type code: Material code:
1. Desktop stand DCH-9 0700049
2. AC Travel Charger(Euro plug) 207-253 Vac ACP-7E 0675144
3. AC Travel Charger(US plug) 108-132 Vac ACP-7U 0675143
AC Travel Charger(US plug) 198-242 Vac ACP-7C 0675158
4. AC Travel Charger(UK plug) 207-253 Vac ACP-7X 0675145
AC Travel Charger (UK plug) 180-220 Vac ACP-7H 0675146
5. AC Travel Charger (Australia) 216-264 Vac ACP-7A 0675148
6. Performance Travel Charger Euro plug 90-264 Vac ACP-8E 0675195
Performance Travel Charger Korea plug 90-264 Vac ACP-8K 0675199
7. Performance Travel Charger UK plug 90-264 Vac ACP-8X 0675197
8. Performance Travel Charger US plug 90-264 Vac ACP-8U 0675196
Performance Travel Charger China plug 90-264 Vac ACP-8C 0675211
9. Performance Travel Charger Australia plug 90-264 Vac ACP-8A 0675214

NSW-5
General Information PAMS Technical Documentation
Page 6 Issue 1 10/00
Nokia Mobile Phones Ltd.
Product and Module List
Unit/type: Type des. Code:
Transceiver NSW-5
Slim Battery 900 mAh Li-Ion BLS-2S 0670300
Extended Battery 900 mAh Li-Ion BLS-2N 0670306
Standard Battery 900 mAh NiMH BMS-2S 0670314
Vibrator Battery 900 mAh NiMH BMS-2V 0670315
Chargers, Unit/type: Type des. Code:
AC Travel Charger (US) 108-132 Vac ACP-7U 0675143
AC Travel Charger (EUR) 207-253 Vac ACP-7E 0675144
AC Travel Charger (UK) 207-253 Vac ACP-7X 0675145
AC Travel Charger (UK) 180-220 Vac ACP-7H 0675146
AC Travel Charger (AUS) 216-264 Vac ACP-7A 0675148
AC Travel Charger (CHI) 198-242 Vac ACP-7C 0675158
AC Travel Charger (ARG) 216-264 Vac ACP-7AR 0675244
Performance Travel Charger (EUR) 90-264 Vac ACP-8E 0675195
Performance Travel Charger (US) 90-264 Vac ACP-8U 0675196
Performance Travel Charger (ARG) 90-264 Vac ACP-8AR 0675248
Cigarette Lighter Charger LCH-8 0675231
Cigarette Lighter Charger LCH-9 0675120
Car Accessories, Unit/type: Type des. Code:
Basic Car Holder MBC-1 0700060
Complete Car Kit CARK-91US 0080263
Complete Car Kit with handset CARK-91H 0080287
Other Accessories, Unit/type: Type des. Code:
Headset with remote control HDC-9P 0694063
Desktop Stand with two slots DCH-9 0700049
Belt Clip BCH-12U 0720161
RS-232 Cable DLR-3P 0730183
Loopset LPS-1 0630146

NSW-5
General Information
PAMS Technical Documentation
Page 7
Issue 1 10/00 Nokia Mobile Phones Ltd.
Technical Specifications
General Specifications of Transceiver NSW-5
The NSW-5 is a dualband/dualmode radio transceiver unit fror the US
TDMA 800/1900MHz networks. The transceiver is fully based on 3V
technology.
The transceiver comprises the System/RF/keypad module (UT5U), the
LCD module and assembly parts.
The User interface consists of number, talk, soft and power keys in the
keymat. Instead of the normal up/down arrow keys, there is a Roller Key
with a selector switch. The display is a full graphic 96x65 pixel LCD.
The transceiver also comprises a Sliding cover over the keys. The Slid-
ing cover comprises a microphone.
The Antenna is of a fixed meander type. An external antenna connection
is provided by a top shoulder RF connector on the back.
The transceiver supports IR data transmission through the IR window on
the top of the phone.
Mechanical Characteristics
Unit Dimensions (W
x H x D) (mm) Weight (g) Typ. Volume (ccm) Notes
Transceiver 53 x 125 x 22 95 90
Transceiver with BLS-2S
900mAh Li-Ion battery 53 x 125 x 25 140 125
BLS-2S battery pack 900mAh 45 x 103 x 10 45 35 Li-Ion prismatic
BLS-2N battery pack 900mAh 45 x 103 x 10 50 41 Li-Ion prismatic
BMS-2S battery pack 900mAh 45 x 103 x 12 72 46 NiMH 3x5/3AAA
BMS-2V battery pack 900mAh 45 x 103 x 14 76 52 NiMH 3x5/3AAA with
Vibra
Temperature range
Performance Temp range Comments
Ambient -30 ... +60 °C Specification fulfilled, IS-55, Class B, IS-137
Internal -30 ... +85 °C Limited by MCU SW
Battery, internal -30 ... +45 °C Charging limit

NSW-5
General Information PAMS Technical Documentation
Page 8 Issue 1 10/00
Nokia Mobile Phones Ltd.
RF Connector
The RF-connector is needed to utilize the external antenna with Car
Cradle. The RF-connector is located on the back side of the transceiver
on the top section. See the illustration in the next chapter.
Con-
tact Line Symbol Parameter Mini- mum Typical / Nomi-
nal
Maxi-
mum Unit / Notes
1 EXT_ANT
Im
p
edance
50ohm
External antenna connec-
tor
2 GND
Im edance
50ohm
tor
,
0 V DC
Battery Contacts


 
 

Pin Line
Symbol Parameter Mini- mum Typical / Nomi-
nal
Maxi-
mum Unit / Notes
1 VBAT Battery voltage 3.0 3.6 5.0 V/ Maximum voltage in idle
mode with charger connected
2 BSI Input voltage Battery size indication
3 BTEMP Input voltage
Input voltage
Output voltage
PWM output signal
frequency
0
2.1
1.9
20 22
1.4
3
2.8
25
V/ Battery temperature indica-
tion
V/ Phone power up (pulse)
V/ Battery power up (pulse)
kHz/ PWM to VIBRA BAT-
TERY
4 GND 0 0 V

PAMS Technical Documentation
NSW-5 Series Transceivers
Issue 1 10/00 Nokia Mobile Phones Ltd.
System Module UT5U

NSW-5
System Module UT5U PAMS Technical Documentation
Page 2 Issue 1 10/00
Nokia Mobile Phones Ltd.
AMENDMENT RECORD SHEET
Amendment
Number Date Inserted By Comments
Issue1 10/00 OJuntune

NSW-5
System Module UT5U
PAMS Technical Documentation
Page 3
Issue 1 10/00 Nokia Mobile Phones Ltd.
CONTENTS
Schematic Diagrams: 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vocabulary 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transceiver NSW–5 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnection Diagram 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Connector 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User Interface (UI) 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roller key 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Slide sensor switch 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UI contacts on the Engine module 12. . . . . . . . . . . . . . . . . . . .
Submodules 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Submodules 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation Modes 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active Operation 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog Control Channel mode (ACCH) 13. . . . . . . . . . . . . . . .
Analog Voice Channel Mode (AVCH) 14. . . . . . . . . . . . . . . . .
Digital Control Channel Mode (DCCH) 14. . . . . . . . . . . . . . . .
Digital Traffic Channel Mode (DTCH) 14. . . . . . . . . . . . . . . . .
Out of Range Mode (OOR) 15. . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Diagram of power distribution 16. . . . . . . . . . . . . . . . . .
Technical Summary of power distribution 16. . . . . . . . . . . . . .
Charging Control 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Two–wire charging 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three–wire charging 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Watchdog 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power up 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power up when power–button is pushed 19. . . . . . . . . . . . . .
Power up when charger connected 20. . . . . . . . . . . . . . . . . . .
Normal battery voltage 20. . . . . . . . . . . . . . . . . . . . . . . . . . .
Empty battery 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IBI (Intelligent Battery Interface) 22. . . . . . . . . . . . . . . . . . .
Mixed trigger to power up 22. . . . . . . . . . . . . . . . . . . . . . . . .
Power Down 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controlled Power Down 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power down pushing PWR–key 22. . . . . . . . . . . . . . . . . . . .
Power down when battery voltage is discharged too low 22
Power down with fault in the transmitter 22. . . . . . . . . . . . .
Uncontrolled Power Down 23. . . . . . . . . . . . . . . . . . . . . . . . . . .
Power down when watchdog expires 23. . . . . . . . . . . . . . .
Power down with Battery disconnected 23. . . . . . . . . . . . .
Battery disconnected when charger is connected 23. . . .

NSW-5
System Module UT5U PAMS Technical Documentation
Page 4 Issue 1 10/00
Nokia Mobile Phones Ltd.
Circuit Description of Submodules 24. . . . . . . . . . . . . . . . . . . . . .
CTRLU 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MCU main features 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DSP main features 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Logic main features 26. . . . . . . . . . . . . . . . . . . . . . . . .
Memories 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AUDIO–RF 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COBBA main features 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PWRU 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CCONT Main Features 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPS Main Features 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INF 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User Interface 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UISWITCH main features 30. . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Module 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Summary 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Frequency Plan 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Characteristics 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution Diagram 32. . . . . . . . . . . . . . . . . . . . . . . . . .
Regulators 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DAMPS800 RX 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDMA 1900 RX 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency Synthesizers 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DAMPS 800 operation 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDMA 1900 operation 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DAMPS800 TX 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDMA1900 TX 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DAMPS800/TDMA1900 operation 37. . . . . . . . . . . . . . . . . . . . . .
Supply voltages in different modes of operation 37. . . . . . . .
Software Compensations 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Levels (TXC) vs. Temperature 37. . . . . . . . . . . . . . . . .
Power Levels (TXC) vs. Channel 38. . . . . . . . . . . . . . . . . . . . .
Power levels vs. Battery Voltage 38. . . . . . . . . . . . . . . . . . . . .
TX Power Up/Down Ramps 38. . . . . . . . . . . . . . . . . . . . . . . . .
Modulator Output Level 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital Mode RSSI 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Block Specifications 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DAMPS 800MHz RX Front End 38. . . . . . . . . . . . . . . . . . . . . .
TDMA 1900MHz RX Front End 39. . . . . . . . . . . . . . . . . . . . . .
1st IF Amplifier 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog IF parts 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital IF parts 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NSW-5
System Module UT5U
PAMS Technical Documentation
Page 5
Issue 1 10/00 Nokia Mobile Phones Ltd.
Transmitter 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Synthesizers 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output levels 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Lists
Engine Module UT5U (0201142) 49. . . . . . . . . . . . . . . . . . . . . . . .
Schematic Diagrams:
Page No
Block Diagram of UT5 (Version 17.4 Edit 40) A–1. . . . . . . . . . . . . . .
Circuit Diagram of CTRLU Block (Version 17.4 Edit 441) A–2. . . . .
Circuit Diagram of PWRU (Version 17.4 Edit 474 ) A–3. . . . . . . . .
Circuit Diagram of Audio (Version 17.4 Edit 391) A–4. . . . . . . . . . .
Circuit Diagram of Receiver (Version 17.4 Edit 39) A–5. . . . . . . . . .
Circuit Diagram of Synthesiser Block (Version 17.4 Edit 17) A–6.
Circuit Diagram of Transmitter (Version 17.4 Edit 51) A–7. . . . . . . .
Circuit Diagram of UI (Version 17.4 Edit 179) A–8. . . . . . . . . . . . . . .
Circuit Diagram of IR (Version 17.4 Edit 99)
and BB_RF interface (Version 17.4 Edit 96) A–9. . . . . . . . . . . . . . . .
Diagram of Dualband RF (Version 17.4 Edit 10) A–10. . . . . . . . . . . .
Layout Diagram of UT5U v.17_4 side 1/2 A–11. . . . . . . . . . . . . . . . .
Layout Diagram of UT5U v.17_4 2/2 A–12. . . . . . . . . . . . . . . . . . . . . .

NSW-5
System Module UT5U PAMS Technical Documentation
Page 6 Issue 1 10/00
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Vocabulary
CS = Cellular System
DCT = Digital Core Technology
HW = Hardware (drivers)
PC = Personal Computer
RAM = Random Access Memory
ROM = Read Only Memory
SPEC = Specification
SW = Software
TDMA = Time Division Multiple Access
LCD = Liquid Crystal Display
FSTN = Film Compensated Super Twist Nematic
COG = Chip On Glass
ASIC = Application Specific Integrated Circuit
DSP = Digital Signal Processor
DTMF = Dual Tone Multi–Frequency
DTX = Discontinuous Transmission
EEPROM = Electrically Erasable Programmable Read–Only Memory
EFR = Enhanced Full Rate codec
EM = Energy Management
IF = Interface, Intermediate Frequency
IR = Infrared
IrDa = Infrared Data
RISC = Reduced Instruction Set Controller
SCM = Short Code Memory
SMS = Short Message Services
MO = Mobile Originated
MT = Mobile Terminated
SW = Software
UI = User Interface
PWB = Printed Wiring Board
Engine = Radio Module