3
UserGuide-SentryPlusAlert 2007
© 2020 Watts
Startup Sequence
When the Cellular Gateway powers up, the device goes through a startup sequence, which
includes the Startup LED changing colors until it turns off . Below is the startup sequence that
the device will go through if everything is working correctly . If the Startup LED blinks white for
more than 30 seconds or if it blinks green for more than 10 minutes, refer to Startup in the
LEDs section to troubleshoot the issue .
COLOR
STATE
DEFINITION
White
Appears for a few seconds after the device is turned on.
White blink - slow
(5 sec)
The cellular radio is off; this is a normal state for five seconds.
Green blink
(30 sec - 10 min)
The device is searching for a cellular connection.
Cyan blink - fast
A cellular connection has been established and the device is
connecting to the Cloud.
Cyan blink – slow
A Cloud connection has been established.
Off
The device is operating normally.
Power
The POWER LED turns on when power is supplied to the device .
COLOR
STATE
DEFINITION
SOLUTION
Green
The device is turned on.
N/A
Off
If the device is plugged in, but this
LED is not on, the device is not
receiving power.
The +12Vdc and GND wiring could be
reversed. See POWER LED is Off on
page 8.
LEDs
The LEDs inside the Cellular Gateway indicate if a component/connection is running, or if there
is an issue . The following sections describe the different LED colors and blink patterns .
