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 25 of 87
Mod. 0805 2011-07 Rev.2
In the following flow chart is detailed the proper HW restart procedure:
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.
HW
unconditional
SHUTDOWN
HW SHUTDOWN* = LOW
Delay > 200ms
HW SHUTDOWN* = Z
PWRMON = HIGH
Modem ON Proc.
N
Y
Disconnect PWR
supply