User's Manual

LE910 V2 HARDWARE USER GUIDE 1VV0301200 Rev.2 Preliminary • 2015-08-04 37 of 81
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The following flow chart shows the proper turn off procedure:
Modem OFF Proc.
START
ON_OFF* = LOW
PWRMON=ON?
Delay >= 3 sec
ON_OFF* = HIGH
PWRMON=ON?
GO TO
HW SHUTDOWN
Unconditional
Modem OFF Proc.
END
N
Y
Y
N
OFF Mode
AT#SHDN
Looping for more
than 15s?
Y
N
Key
AT