User's Manual

GE910 Hardware User Guide
GE910 Hardware User GuideGE910 Hardware User Guide
GE910 Hardware User Guide
1vv0300962 Rev.9-bis3 2013-05-20
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 19 of 87
Mod. 0805 2011-07 Rev.2
The flow chart showing the proper TURN ON procedure is displayed below:
NOTE:
In order to avoid a back powering effect it is recommended to avoid having any HIGH logic
level signal applied to the digital pins of the GE910 when the module is powered off or during
an ON/OFF transition.
MODEM ON Proc.
Y
N
HW un
conditional
SHUTDOWN
Y
PWMON HIGH?
PWMON HIGH?
N
ON_OFF = LOW
WAIT > 5 Sec
ON_OFF = Z
Start AT CMD.
WAIT > 1 Sec