Programme’s After Market Services
NME–3 Series Transceivers
General Information
Issue 1 10/99
NME–3
PAMS
General Information
Technical Documentation
CONTENTS
Introduction 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GSM Transceiver 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modules/Accessories 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Overview 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specification 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page No
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PAMS
NME–3
Technical Documentation
Introduction
The CD 949 is a fixed carphone consisting of 3 Main units.
S GSM transceiver – carries the main phone, it consists of
a 8W GSM–transceiver, power supply, HF circuit and a
SIM–Card reader for a big simcard,
S Handset– The handset carries a large Display, key
board, earpiece and microphone and a SIM–Reader for
a small simcard.
S Cradle – holds the handset and carries a magnet
for Hook On/Off detection in the Handset.
For Downlink HF audio, 2 outputs and1 Power amplifier drive a
Loudspeaker and 1 Lineout signal to use the cars entertainment system.
For modem applications it is also possible to operate the GSM
Transceiver without the cradle and the handset.
GSM Transceiver
General Information
The GSM Transceiver is the main part of the Product and carries the main
GSM radio; it has 3 Connectors:
1. RF connector (GSM antenna)
2. Data Connector (Laptop)
The features of the GSM Tranceiver are listed below
1. Class 2 (8W) phase GSM 900 transceiver
2. Power supply
3. Support of ignition sense and backlightdimming signals
4. Delivery of Carradiomute and Antenna motor control signals
5. High Quality Handsfreeaudio (car enviroment)
6. Poweramplifier for 4W Handsfree Loudspeaker
7. Support of active Handsfree microphone according to VDA
standard
8. Delivery of lineout signal to use the Car radio’s amplifiers and
Loudspeakers for Handsfree
9. SIM reader for large SIM–Card
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10. RS–232 interface for Laptop connections (At commands)
11. Connection to Handset (via system cable)
12. Car data interface for remotecontrol and Data applications
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NME–3
PAMS
General Information
Technical Documentation
Modules/Accessories
Unit/type: Product code: Module code:
Transciever (radio unit) NME–3 0600128
Handset RTE–2HJ 0640102
Cradle CRD–8 0650028
System Module RU GM8B 0201346
System Module HS AH89 0201345
MRTE2HJ Mechanical Assembly HS 0261940
MNME3 Mechanical Assembly RU 0261941
HFM 15 Handsfree Mic. 0630236
HFM10 Handsfree speaker 0692006
System cable and carkit SCM–5K 0730173
Mounting bracket MBE–2 9457320
Swivel mount HHS–9 0620037
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PAMS
NME–3
Technical Documentation
Technical Overview
The mobile is built around the DCT–3 core (originally designed for a
handportable phone) to operate in the GSM system. This is possible with
a modest extension to the hardware as some provisions for use in a mobile are already included in the original core design. Some extensions to
the original design has been necessary to be able to operate in an automotive environment, to include built–in handsfree operation and to use
an active handset instead of the UI flex board of the handheld.
The purpose of the baseband module is to control the phone, process
audio signals to and from the RF block and to and from the handset/
handsfree transducers. The module also includes a SIM card reader and
furnishes external data (RS232 and Remote control via AT commands)
and VDA specific control lines like BLD, AMC, CRM and IGNS.
The entire transceiver is built on a single multilayer PCB which is enclosed
in a housing consisting of a metal bottom part, metalized shield, plastic
part and a plastic top cover. The shield has different chambers to seperate
RF from BB and to prevent trouble with Emmisions and Immunity tests
during TA testing. Most components of the baseband section are surface
mountable and are soldered using reflow.
General Information
The transceiver has three connectors.
– 32 pole connector which basically implements the car manufacturer
recommendation for a GSM mobile phone, RU–HS connection, line–out
connection.
– A 9 pole connector for data transfer.
– The RF connector for the antenna.
All internal connections on the board are by PCB wiring. The SIM card
reader is soldered to the board.
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NME–3
PAMS
General Information
CD949 Radio Unit
NME–3
GSM900
Antenna
RS232
Data IF
M/FBUS
Handset
RTE–2HJ
VDA Car Signals
HF Audio
Audio Line–Out
Technical Documentation
cradle
CRD–8
Figure 1. System Overview of CD949
The GSM Transceiver is the main part of the Product, carring the main
GSM radio. Its has 3 Connectors:
1. System connector (Powersupply , Car signals, Audiosignals,
Handset Cardata)
2. RF connector (GSM antenna)
3. Data Connector (Laptop)
The features of the GSM Tranceiver are listed below
1. Class 2 (8W) phase GSM 900 transceiver
2. Powersupply
3. Support of ignition sense and backlightdimming signals
4. Delivery of Carradiomute and Antenna motor control signals
5. High Quality Handsfreeaudio (car enviroment)
6. Poweramplifier for 4W Handsfree Loudspeaker
7. Support of active Handsfree microphone according to VDA
standard
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8. Delivery of lineoutsignal to use the Carradios amplifiers and
Loudspeakers for Handsfree (balanced)
9. SIM reader for large SIM–Card
10. RS–232 interface for Laptop connections
11. Connection to Handset
12. Car data interface for remotecontrol and Data applications
Issue 1 10/99
PAMS
NME–3
Technical Documentation
RF
General Information
RS 232 to Laptop
DSUB–9
Transceiver
System connector
Antenna
Car battery
Ignition
Car radio mute
Antenna motor control
Backlight dimming
Microphone
Loudspeaker
Car radio audio in
Car application
Handset
Cradle
Test–/Flash Interface
Figure 2. CD949 interconnection diagram
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NME–3
PAMS
General Information
Technical Documentation
Technical Specification
Parameter Type
Cellular System GSM 900 Phase II
Tranciever Type Class 2 Mobile (8 Watt)
System cable Interface 32 pole AMP connector
Data Interface RS232 (full protocoll)(DSUB 9) and Re-
mote control via system conector (sys-
tem)
Installation Trunk, cabin or DIN slot
SIM card Full size SIM in RU (ISO 7816)
Mini SIM in HS (ISO 7816)
Operational Temperature –20 C to + 60 C (normal performance)
–40 C to + 85 C (reduced performance)
–40 C to + 85 C (storage)
Supply voltage (transmitting) 10.8 V to 16 V
Current consumption (power off) < 1mA
Current consumption (idle mode) 150mA
Current consumption (transmit at max.
PWR)
Fuse +12V Fuse 5A
TX RF output power 8 Watt
HF Audio power 1.5 Watt at 4Ohm
Height 25mm
Width 170mm
Depth 115mm
Volume 489ccm
normal:1,5A maximal: 4A
GND Fuse 5A
IGNS Fuse 1A
PCB Fuse for Fire protection
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