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ECA Electronic Engineering Pty LTD
GSM Access Control Model GSM18v3 / User Manual V3
Connections
• Red wire: Positive + 12V
• Black wire: Negative -V
• Yellow wire: Not in use
• White wire: Common (contact of the internal relay)
• Green wire: N.O. (Normally Open contact of the internal relay)
• Yellow wire: Not in use
Appling power to the unit
Before applying power, TEST THE SIM CARD IN YOUR PHONE and make sure you can make a
call and it is activated and has its ID number on. Unscrew the cover on the unit and insert the SIM.
NOTE ! Please wait 3 minutes to allow the unit to load the software after powering up the unit on. The
LED in the unit will turn on to indicate the unit is ready for use.
System operation
A registered user can gain access by calling the unit which will automatically activate its output to
trigger the gate/door to open. If the user’s mobile number is a privet number, then he can gain access
by sending an SMS to the unit. If access by SMS is desired, then SMS: O (lowercase or uppercase) to
the unit.
4. Programming the unit
Make sure the Green LED is ON and the SIM card has a credit to make calls.
The unit can be programmed by SMS commands.
Whenever you program the unit by SMS, you must start the SMS message with the letter P(Password)
followed by the Manufacture’s Default Password which is 1234 and then the desired command.
For each SMS command you send, you will receive an SMS reply from the unit to confirm.
Note! If there is no credit on the SIM card, the unit will not send an SMS confirmation back.
Programming phone numbers of normal users (0 - 1600)
Example for how to register and add three phone numbers by SMS command;
P.123 A.0 17315263.0 18655002.0 11136585
“P” means: password
123 : Manufacture’s default password.
“A” meaning: Add the following number(s).
“.” The dot means end of a number.
0 17315263 : phone number added.
0 18655002 : phone number added.
0 11136585 : phone number added.
You must write and send the SMS exactly as written above, with points between
each phone number. If you failed to register several numbers on one go, try to
send them one by one as follow:
P.123 A.0 17315263
