User's Guide

LE866 HARDWARE USER GUIDE 1vv0301210 Rev.0 Preliminary 2015-09-02 31 of 68
Reproduction forbidden without Telit Communications PLC written authorization All Rights Reserved
A typical circuit is the following:
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 LE866 when the module
is powered off or during an ON/OFF transition.