User's Manual

LE920 Hardware User Guide
1vv0301026 Rev.8 2015-01-03
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Reserved. Page 66 of 88
12.5. Indication of Network Service Availability
The STAT_LED pin status shows information on the network service availability and call
status. In the LE920 modules, the STAT_LED usually needs an external transistor to drive an
external LED. Because of the above, 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