User's Manual
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Ericsson Manuals
Electronics
Radio Modem
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Table Of Contents
1 Safety advice and other precautions
1.1 Safety
1.2 Product care
2 About this Manual
2.1 Purpose of this Manual
2.2 Who Should Read this Manual?
2.3 How to Use this Manual
2.4 Questions and Comments
2.5 Terminology
2.6 References and Products
3 Introduction
3.1 The Mobitex Network
3.1.1 Fixed terminals
3.1.2 Mobile terminals
3.1.3 Radio base stations and Exchanges
3.1.4 MPAKs
3.2 The M3090 Radio Modem
3.2.1 General
3.2.2 Function Blocks
3.2.3 Power
3.2.4 Antenna
3.3 Host Communication
3.3.1 General
3.3.2 Application Software
3.3.3 Serial Communication
4 About Antennas
4.1 The Functions of an Antenna
4.1.1 Half-wave and Quarter-wave Antennas
4.2 Antenna Concepts
4.2.1 Antenna Ground Plane
4.2.2 Polarization
4.2.3 Antenna Gain
4.2.4 Environmental Influences
4.3 The M3090 Antenna
4.3.1 Antenna Rod
4.3.2 Antenna Cable
4.4 Antenna Suppliers
5 Technical Data
5.1 Physical Data
5.2 Connectors and Logical Interfaces
5.2.1 System Connector - Pin configuration
5.2.2 System Connector - Pin orientation
5.3 Power Supply
5.3.1 Current consumption
5.3.2 Maximum ripple
5.3.3 Characteristics for the System Connector
5.4 Environmental Specifications
5.4.1 Transport/storage
5.4.2 Climatic
5.4.3 Mechanical
5.4.4 Electrical
5.5 Safety Specifications
5.6 Radio Specifications
5.7 External Antenna Specifications
6 Host Requirements
6.1 Host Environment
6.2 Integrator’s Kit
6.3 Physical installation of the Radio Modem
6.3.1 5 V to 3.3 V Conversion
6.3.2 ON/OFF function
6.3.3 Cooling
6.3.4 Grounding
6.3.5 ESD Protection
6.3.6 Shielding
6.4 Selecting an Antenna
6.5 Connecting the Antenna
6.5.1 General
6.5.2 External Antenna Test
6.6 Connecting the Radio Modem to the Host
7 Type Approval
7.1 Requirements in the USA
7.1.1 Compliance and Type Approval Number
7.1.2 Verification and Labelling
(ULFVVRQ0RELOH'DWD'HVLJQ$%
T
echnical Assistance Centre
S:t Si
gfrids
gatan 89
S-412 66
Göteborg
, SWEDEN
Fax: +46
31 703 60
33
E-mail: mobit
ex.tac@erv
.ericsson.se
198 17 - KRD 102 303 Uen, Rev B
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