User's Manual

UE910 3G HARDWARE USER GUIDE 1vv0301171 Rev.3 • 2015-04-17 30 of 78
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A flow chart showing the proper turn on procedure is displayed below:
“Modem ON Proc”
START
VBATT > 3.22V
?
ON_OFF* = LOW
PWRMON=ON
?
Delay = 5 sec
ON_OFF* = HIGH
GO TO
“HW Shutdown
Unconditional”
PWRMON=ON
?
Delay = 1 sec
GO TO
“Start AT Commands””
“Modem ON Proc”
END
N
N
Y
Y
Y
N