Appendix A - Unit Communication In Starcom Systems - Starcom Systems Kylos User's Manual Manual

Kylos and Kylos Compact Users Guide
Appendix A – Unit Communication in Starcom
Systems
Kylos Compact is the mobile component of SGS's advanced tracking and
monitoring system. The system uses advanced software algorithms for field
tracking of units and provides customers with a selection of real-time
information about the tracked device. The following image illustrates the
SGS communication channels.
The unit transmits messages according to the values specified in Helios
Parameters > Transmission Rates settings (GPRS, SMS).
When the unit's modem is turned on, it tries to connect to the network and
transmit via GPRS (4 attempts: 2 on the first server and 2 on the second
server). If it fails to connect to the network, it will switch to the SMS channel
(if it is configured to transmit via SMS) after about 4 minutes, because it
makes four attempts to connect via GPRS. It will constantly try to transmit
via SMS.
The next attempt to transmit via GPRS will be repeated in 5 minutes. Every
5 minutes, the unit will attempt to connect to the network and transmit via
GPRS. This process is illustrated in the following figure.
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