Data Numbers
Data Numbers are setup in a similar way to master numbers and allow settings to be
amended using software. A call from a data number may leave the unit unresponsive for up
to 3 minutes after the call has ended. Data numbers cannot activate the output relay.
Details of the software are not covered in this manual. Please see the Advent Controls web-
site/blog.
Data 07000000000,37212. for module with IMEI 355073034237212
2. Operation
2.1 Registration
A valid GSM Subscriber Identity Module (SIM) card must be present in the SIM holder for the
system to operate. Immediately on power up the system will attempt to register on the SIM
card on it’s home network. Once registration has occurred LED1 will change from flashing
approximately once every second to a momentary flash once every two seconds.
If LED1 continues to flash once every second for some time, the system cannot register the SIM
on the network. The system will automatically restart should this occur. A restart can be ob-
served by LED2 occasionally flashing and LED1 extinguishing completely for a few seconds.
The cause of the restart can be determined by timing the interval between restarts. If the cy-
cle occurs every minute the problem lies with the signal strength/antenna—ensure the an-
tenna is properly connected to the PCB and positioned in an area where a good signal exists.
If the cycle occurs every 10-15 seconds then the system cannot read the SIM card. Check for
PIN numbers and the physical contacts on the SIM.
Observe anti-static precautions when inserting the SIM.
2.2 Command Message Format
To operate the system a master (admin) cell phone is used to send SMS text messages to the
system telephone number. All messages follow a similar format as follows:
COMMAND<space>action. (eg. Master 07000000000.)
LED2, found by the 5 pin header, is used to display the result of a command. The LED will flash
twice to acknowledge the successful receipt of a command and will light continuously for 2s
to show the instruction has failed. It also illuminates during any call (valid or invalid) and lights
continuously when any input is in the active (triggered) state.
The command (see Section 7) is always written first followed by a single space and the action
required. Although not necessary, it is useful to include a full stop immediately after the action
as some mobile phones can enter superfluous characters at the end of a message, which can
invalidate the message.
The message is not cAsE sensitive.
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