User's Manual

Radio Activity S.r.l. 10 / 44
3 Radio description
KAIROS is a very sophisticated digital transceiver, target for high performance professional use.
Its architecture provides the capability of supporting a number of features resulting in a extremely flexible
two-way radio communications solution. Due to its flexibility, the complete parameters programming is not
an easy task. To perform a perfect programming to match the desired application, it is required a very skilled
and expert technician. Radio Activity strongly suggest to require a complete programming of the equipments
from Factory before the expedition.
In the following we suppose that the equipments are already programmed for the application. Only the setup
of minor items will be described.
3.1 Frontal panel
The following picture shows the frontal panel of KAIROS.
In the frontal panel there are 2 connectors:
1. 10BT/100TX Ethernet connector for the remote control of the equipment and for data/audio packets
communication
2. optional RS232 (115.2Kbit/sec, 8,N,1) or USB serial port for remote controlling the equipment by a
PC or for special purposes. The USB/RS232 led indicate the presence and the activity of these serial
port.
In the frontal panel there are also the power on/off button and some dual color LEDs for monitoring the
status of the equipment:
∞ power on/off button; pressing this button once for 150ms to 4 seconds the equipment is powered
on. To switch off the equipment, press the button for at least 2 sec: the Radio Status led will start a
RED fast lamping for 2 sec to advise the user that the equipment is starting the shutdown procedure,
then the lamping becomes GREEN and slow to indicate that the equipment is ready to switch off.
Now, releasing the button, the equipment switches off. Note that the last on/off condition will be
saved also in case of power supply break therefore the equipment will automatically switch on after