45
Table 4.2
Output operation algorithm
Output operation algorithm
Output active state
Output active state
Code
Function
0
No functions
—
—
1
Connection status
Internet connection estab-
lished
No internet connection
2
Active SIM card
Primary SIM card
Secondary SIM card
3
SIM cards are available
SIM card is available (at
least one)
No SIM cards
4
Operation via CSD.
Operation via CSD.
—
6
Data link activity
Internet
When data is received over
the network, the pin switches
to an active state, and data
transmission begins after the
pause of 150 ms
.
when no
data is available to be
transmitted within the time period
specified in the
Data absence
time
option (in the ATM Control
application);
after
module restart.
CSD
CSD connection is open
CSD connection is closed
7
Alarm status
Module is enabled
Module is disabled
8
Command mode (perform-
ing a task by SMS com-
mand)
See section
"GPIO Pins Control via SMS Commands"
.
The command mode enables the modem output to be controlled via single-acting SMS commands. The out-
put can be transferred into an active or passive state as well as an output signal can be generated by sending
an SMS command to the modem. Two types of output signal are available for the command mode: pulse of set
duration and trigger. By default, the trigger is used. For more details on the basic settings, refer to the
Pins Control via SMS Commands"
section.
If the pin is in an active state, data is transmitted without a pause when received.
