Further information
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3
Input and output commands
•
TR
UE
Set channel 1 output to the true state (high or low voltage
output, according to polarity setting), if channel is enabled.
•
FA
LSE
Set channel 1 output to the false state (high or low voltage
output, according to polarity setting), if channel is enabled.
•
ON
Activate input monitoring and lock the terminal.
•
OF
F
Deactivate input monitoring but leave the unit locked.
•
UN
LOCK
Deactivate input monitoring if active and unlock the unit.
•
LO
CK
Lock the unit.
Responses to commands
When a command is received, the unit will normally respond by
sending an SMS message back to the number that sent the com-
mand. The response is either the new status of the unit or an error
message if the command is not recognised. If required, you can
suppress the reply by placing a fullstop after the PIN, e.g.
234
.
Fo
will set forwarding without replying.
Note: Only the first two characters of commands are required and
they are not case sensitive, e.g.
234sT
will have exactly the same
effect as the above full command.
Typical response to a status command:
Monitor: off
Lock: off
(the terminal lock condition)
Input: true
(if configured as an output, “input1” is replaced with “Output:”)
Input2: 2.5v-f
(the logical condition is also shown, f for false, t for true)
Missed calls: 3
New SMS: 4
SMS space:
Signal: -0dBm
Supply: 2.v
Supply: break
(shown if power was lost after monitoring was started)
It is not possible to guarantee that an SMS will be delivered immediately
and there are rare occasions when the message will not be sent at all.
