User's Guide

HE863 Family Hardware User Guide
1vv0300891 Rev.5
- 2011-03-18
Reproduction forbidden without Telit Communications S.p.A’s. written authorization - All Rights
Reserved. Page 34 of 89
For example:
1- Let us assume you need to drive the ON/OFF# pad with a totem
pole output of a +1.8/5 V microcontroller (uP_OUT1):
2- Let us assume you need to drive the ON/OFF# pad directly
with an ON/OFF button:
5.3. Turning OFF the HE863
The turning off the device can be done by below ways:
- via AT command only (see HE863 Software User Guide)
- by tying low the ON/OFF# pad for at least 2 seconds.
Either ways the device issues to the network a detach request
that informs the network that the device will not be reachable
any more.
To turn OFF HE863 Family the pad ON/OFF# must be tied low for
at least 2 seconds and then released.