GSM resender_______________ GsmAlarm-300
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2.1.9. In order to protect the device against electrical discharges, connect the contact Ground to
ground wire of the building by a separate wire.
2.2. PURPOSE OF THE LEDs
2.2.1. MODEM (red) - indicates GSM module operation state.
Out - GSM module is not in use.
Continuously On - GSM module is in use, but there is no GSM operator network
registration.
Blinking once a 2-3 seconds - GSM module is in use, GSM operator network
registration is present - everything is OK.
2.2.2. MODE (yellow) - indicates GsmAlarm-300 operation mode.
Out - system is not active.
Continuously On - CENT line is active (handset is lifted).
Blinking once a second - outgoing call, speech mode or SMS is being sent.
Blinking more frequently than once a second - incoming call.
Blinking very rapidly - correct DTMF or SMS instruction confirmation.
2.2.3. READY (green) system state indicator.
Out - system is not operating.
Blinking - system is operating, but no SMS center nor a single user number have been
programmed.
Continuously On - system is ready for work.
2.2.4. LINE (red) - wire telephone line indicator
Out - no wire line (LINE), communicating through GSM network.
Continuously On - wire line (LINE) is present, communicating through wire line.
3. PROGRAMMING
GsmAlarm-300 may be used without additional programming, however in order to employ all its
features, we advise to program the SMS center number, at least one user telephone number and GSM
operator's information brief number. Then the user is enabled to
check SIM card account balance, as well as to control the system by DTMF and SMS instructions.
3.1 SMS CENTER AND USER NUMBER PROGRAMMING
In order to program SMS center and user numbers, send GsmAlarm-300 a SMS with the following
contents:
AAAAAAAA SMSNR:123456789 ALRNR1:123456789 ALRNR2:123456789
ALRNR3:123456789 ALRNR4:1234546789 SRVNR:1234
AAAAAAAA is an 8-digit SMS password, necessary to enter in the beginning of each SMS.
Manufacturer has programmed it as AAAAAAAA. User may change this password as he wants
(see 3.2).
