User's Manual

SATELLAR Radio Unit User manual v.0.7
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1 INTRODUCTION TO SATELLAR PRODUCT FAMILY
SATELLAR is a new generation narrow band radio modem that consists of separate units:
o Central unit
o Radio unit
o expansion units
Using SATELLAR the customer builds his/her own independent radio data communication
network.
This document presents the specifications and usage of the Radio unit. The properties of other
units are described to the extent that is necessary to understand the operation of the Radio unit.
Data communication
SATELLAR can operate either as a transparent radio link, essentially replacing a wire, for classic
RS-232, RS-485 or RS-422 based protocols or as a wireless router in an IP-based network.
When the Radio unit is acting in an IP network as a repeater station without any local Ethernet
connection it can be used as a standalone device whereas in stations where a local Ethernet
connection is needed it must be used together with a Central unit.
Range
With the Radio unit of SATELLAR the communication range of a point to point link is typically
longer than 10 km in urban conditions (some obstacles in the line of sight), and longer than 20
km in line of sight conditions. The range can be further extended using high gain antennas,
booster modules and radio repeaters.
Security
Data security is often a concern when using radio communication. In SATELLAR a 128 bit
encryption on the air-interface ensures privacy in the radio network.
Diagnostics and configuration
Radio modems are often used in applications where reliability and independence are key
properties. To support this demand, SATELLAR has built-in diagnostic and remote configuration
features. To access these features SATELLAR as a product family offers many different user
interfaces. Two of them are available for the Radio unit:
1) LED indicators
The status of the Radio unit can be seen from the LED indicators that are located on the
other narrow side of the unit.