User's Manual

GE910 Hardware User Guide
1vv0300962 Rev.12 2013-10-22
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 20 of 83
Mod. 0805 2011-07 Rev.2
ON-OFF Circuit Examples:
1- If your system does not have Open Collector bus, use this interface:
2- Using a simple ON/OFF external switch: