Programmes After Market Services (P.A.M.S.)
Technical Documentation
NME–2A Series Transceivers
Chapter 3
Transceiver Overview
Original 08/97
NME–2A
P.A.M.S.
Transceiver Overview
Technical Documentation
CHAPTER 3 – TRANSCEIVER OVERVIEW
CONTENTS
Introduction 3 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 3 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Diagram 3 – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exploded View 3 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly Parts 3 – 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page No
Page 3 – 2
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P.A.M.S.
NME–2A
Technical Documentation
Introduction
This document contains the transceiver level description of the 6081 GSM
Class 2 mobile phone. Detailed information can be obtained by referring to
relevant module description.
The 6081 is a class 2 (8 watt) mobile transceiver designed to meet the car
manufactures requirements for installation interface (VDA 25 pole Sub D
connector). Data interface is accomplished by means of a 16 pole
connector located in the front plate of the transceiver.
Functional Description
The phone electronics consist of system module (system + RF blocks).
External handset is connected to system module with a system connector.
System blocks and RF blocks are interconnected with PCB wirings. The
transceiver can be connected to data accessories with a data connector
and also an external sim card reader.
Transceiver Overview
The system blocks provides MCU and DSP environments, logic control IC
(EDSA), memories, audio processing and RF control hardware (RFI). On
board power supply circuitry delivers operating voltage for both system
and RF blocks.
The general purpose microcontroller, Hitachi H8, communicates with DSP,
memories and logic control IC (EDSA) with 8 bit data bus.
RF block is designed for a mobile phone; which operates in GSM system.
Purpose of the RF block is to receive and demodulate radio frequency
signal from the base station and to transmit a modulated RF signal to the
base station.
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Page 3 – 3
NME–2A
P.A.M.S.
Transceiver Overview
Block Diagram
HF MICROPHONE
HF SPEAKER
+ 12 V (red)
GROUND (black)
IGNS (blue)
XCRM (yellow)
ANTC (orange)
Technical Documentation
82
HANDSET
2
7
25
SYSTEM CABLE
2
ANTENNA
NME–2A
(GM8 system module)
616
SIM DATA CONNECTOR
Page 3 – 4
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P.A.M.S.
NME–2A
Technical Documentation
Exploded View
Transceiver Overview
1
2
3
C0600081
4
5
6
Original 08/97
Page 3 – 5
NME–2A
P.A.M.S.
Transceiver Overview
Technical Documentation
Assembly Parts
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 9450682 Top enclosure
2 16 6290007 Screw
3 9537036 Top shield Assembly
4 0201102 GM8 module
5 9540015 Bottom enclosure
6 9450588 SIM guidance
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