TABLE OF CONTENTS
Page
1 SATELLINE-1AS and SATELLINE-2AS radio data modems
3
1.1 Radio data modem
3
1.2 RS-232 Pin Connections
4
1.3 Technical Specifications
6
2 Asynchronous Data Transmission
8
2.1 Asynchronous character
8
2.2 Effects of character length on transmission
9
2.3 Data speeds
9
2.4 Transmission
9
2.5 Reception
10
2.6 Delays during data transmission
10
3 Multi Modem Data Systems
10
3.1 Required sequence of data characters
10
3.2 Polling
10
3.3 Multi Master
11
4 Planning a Radio Modem Network
11
4.1 Factors affecting quality and distance of the radio connection
11
4.2 Radio field strength
12
5 Installation
13
5.1 RS-232 Interface
14
5.2 Supply of current
14
5.3 Mounting the antenna
15
6 Equipment
18
6.1 The connection of antennas to radio modems
18
6.1.1 Hand portable equipment
18
6.1.2 Equipment installed in vehicles
18
6.1.3 Base station
18
6.2 Cables
19
6.2.1 RF cables
19
6.2.2 Interface cables
19
7 Check List
20
Appendices
1. The timing diagram of RS-232 interface of SATELLINE-1AS and SATELLINE-2AS
radio modems
2. Selecting of radio channel of SATELLINE-2AS
3. Table of selectable radio channels
4. SATELLINE-1AS/2AS RSSI curve
****
Due to continuous product development SATEL OY reserves the right to
change specifications without notice
****
SATELLINE-1AS and SATELLINE-2AS
2
