User's Manual

GE866-DUAL Hardware User Guide
1VV0301051 Rev. 2 – 2014-04-07 7
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Reserved. Page 59 of 82
Mod. 0805 2011-07 Rev.2
11.8. STAT LED Indication of network service
availability
The STAT_LED pin status shows information on the network
service availability and Call status.
In the GE866-QUAD 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: