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User's Manual

ManualsBrandsTelit Communications ManualsElectronicsLE910-NAG LTE/HSPA/GPRS/GSM module supporting frequency bands GSM/GPRS 850/1900, HSPA FDD II and FDDV and LTE FDD 2, 4, 5 and 17
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LE910 Hardware User Guide
1vv0301089 Rev.7 – 25-10-2015
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 64 of 88
14.4 Indication of network service
availability
The STAT_LED pin status shows information on the network service availability and Call
status. The function is available as alternate function of GPIO_01 (to be enabled using the
AT#GPIO=1,0,2 command).
In the LE910 modules, the STAT_LED 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.
Device Status
LED status
Device off
Permanently off
Not Registered
Permanently on
Registered in Idle
Blinking (Period 1s on + 2s off)
Registered in Idle + Power Saving
Depends on the event that triggers the wakeup
(in sync with network Paging)
Voice Call Active
Permanently on
Dial-Up
Blinking (Period 1s on + 2s off)
A schematic example could be: