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4. Electrical Inputs and Outputs
The top of the ATLAS PL modem has these features:
1. RF connector for UHF antenna
2. Power LED
3. Status LED (Receive data = green, TX = red)
4. Alert LED
5. Alert Button
4.1.
Buttons
Power
Press this button to turn the power on. Press and hold it for two seconds to turn
the power off.
Press this button to generate an alert. Press and hold it for two seconds to
Alert
generate a Critical Alert. Press and hold it for more than 5 seconds to clear all alert
conditions.
4.2.
LEDs
The status LED visually show the current status of the radio.
Status LED
This LED blinks green upon the reception of data or RF carrier. If the GPS is
not locked, its will fast-blink orange twice-per-second.
Power LED
This LED does a short blink, once every two seconds, indicating to the user
that the power to the modem is ON and the modem is working. If the TXRATE (the rate at
which the unit reports its position), is > 60 seconds, the internal power-management may
turn the radio circuit completely off. In this case, the Power Led will blink once every 4
seconds. When the unit transmits its position, it will also blink green.
The following table summarizes the power LED indications.
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Raveon Technologies
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