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Operation
LED Status Indicators
Status Indicator
Power
ACT/232 -
Displays the
activity over the
WAN connection
and serial port.
Signal - Displays
the current
cellular signal
strength.
State
Solid green
Solid green with
yellow flashing
every four seconds
Solid yellow
Solid red
Flashing yellow
Flashing red
Flashing green
Flashing yellow or
red/green
Solid green
Solid yellow
Solid red
Flashing red
The Field Hub is powered on.
Note: The Field Hub goes through a power down
sequence when the ignition is switched off. It is
normal for the Power LED to remain on for
approximately 60 seconds after the ignition switch
is turned off.
The Field Hub has a fixed GPS signal.
The Field Hub ignition power is off and the Field
Hub will shut down soon.
The Field Hub is not operational.
Data is being transmitted or received over the
serial port and WAN interface at the same time.
Data is being transmitted or received over the
serial port.
Data is being transmitted or received over the
WAN interface.
Data is being transmitted or received over the
serial port and the WAN interface simultaneously.
The cellular signal is strong. RSSI>-85dBm
The cellular signal is marginal. (-100 dBm < RSSI
< -85 dBm)
The cellular signal is poor. (-110 dBm < RSSI < -
100 dBm)
No cellular signal is available. (RSSI < -110 dBm)
Status
5
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