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APPENDIX A – SMS COMMANDS AND PROGRAMMING
The TXC+ has a number of SMS commands and programming commands which can be used to:
• Activate the outputs
• Request the unit status
• Change programming information and request current programming information
If the TXC+ is to reply to any of these commands and programming updates, the SMS function has
to be enabled on the SIM card.
FSK supplied SIM cards cannot send SMS’s
SMS Commands
Activate the outputs on the TXC+
Keyword Description Notes
1on Turn output 1 on (Relay 1) Not case sensitive
1off Turn output 1 off (Relay 1)
2on Turn output 2 on (Relay 2)
2off Turn output 2 off (Relay 2)
3on …. 10on Turn outputs 3 – 10 on the expansion module on Format is output number (3-10) and
output state (on/off)
3off …. 10off Turn outputs 3 – 10 on the expansion module off
Change the default SIM card to be used (for TXC+ units fitted with two SIM cards)
Use this command with care, as it will stop the TXC+ from functioning if a SIM card is selected
which is not installed or activated
Keyword Description
SELECT SIM 1 Select the first SIM card as the default
SELECT SIM 2 Select the second SIM card as the default
SMS Status Requests
Keyword Description Notes
status? Get full unit status Not case sensitive. No spaces
balance? Get account balance Not case sensitive. No spaces
Note: the balance request works with pre-paid SIM cards only.
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