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 63 of 83
Mod. 0805 2011-07 Rev.2
12.3. Indication of network service availability
The STAT_LED pin status shows information on the network service availability and Call status.
In the GE910 modules, the STAT_LED usually needs an external transistor to drive an external
LED.
Therefore, the status indicated in the following table is reversed with respect to the pin status.
LED status Device Status
Permanently off Device off
Fast blinking
(Period 1s, Ton 0,5s)
Net search / Not registered / turning off
Slow blinking
(Period 3s, Ton 0,3s)
Registered full service
Permanently on a call is active
A schematic example could be: