Telit Wireless Solutions HE910 - HE910 Network Service Availability Indicator

HE910 Hardware User Guide
1VV0300925 Rev. 32 Page 88 of 111 2019-11-25
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 HE910 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 1sec on + 2 sec off
Registered in idle + power saving
It depends on the event that triggers the
wakeup (In sync with network paging)
Voice Call Active
Permanently on
Dial-Up
Blinking 1 sec on + 2 sec off
A schematic example could be:
Figure 14-1 State_Led