User's Manual

UE866 HARDWARE USER GUIDE 1vv0301157 Rev.7 • 2015-04-17 28 of 68
Reproduction forbidden without Telit Communications PLC written authorization – All Rights Reserved
WARNING:
It is recommended to power on the module only after VBATT is higher than 3.22V.
The maximum rump up time for VBATT is 21mS.
In case this condition it is not satisfied you could use the HW_SHUTDOWN* line to recover it.
An example of this is described in the following diagram:
After RESET* is released the module will automatically power on itself.