L E D
I N D I C A T O R S
_________________________________________________________________________________
GsmAlarm-500
Software ver. 1.15
-
6-
3.
LED INDICATORS
3.1.
NETWORK: GSM MODULE STATE AND SIGNAL STRENGTH INDICATOR
Indicator state
Explanation
Out.
GSM module is not in use. No power supply or
system failure.
Continuously On.
There is no GSM operator network registration.
Possible causes: SIM card PIN code request is not
deactivated, antenna not connected or poor network
connection quality.
Blinking more frequently than once a
second.
GSM module is in use: outgoing call or SMS is
being sent.
Blinks 5 times, short break after.
Very good signal.
Blinks 4 times, short break after.
Good signal.
Blinks 3 times, short break after.
Satisfactory connection.
Blinks 2 times, short break after.
Weak connection.
Blinks once, short break after.
Poor connection.
3.2.
MODE: ALARM SYSTEM STATUS INDICATOR
Indicator state
Explanation
Out.
No power supply or system failure.
Continuously On.
System is operative, disarmed, no zone sensors have
been triggered.
On with short breaks.
System is operative, disarmed, but one or more zone
sensors have been triggered.
Blinking with low frequency (once in
2-3 sec.).
System is armed.
Blinking more frequently than once a
second.
System is in alarm state.
Blinking very rapidly for 2-3 sec.
SMS instruction or DTMF command receipt
confirmation.
