MTX-DIN Family
www.mtxm2m.com
2015/10 v2.3
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MTX M2M® by MATRIX ELECTRONICA S.L.U
5.
Operation
5.1
Switching on/off the modem. New
“Automatic restart after shutdown”
feature
There is no special way to turn the modem on: just apply power to the VIN terminal via a power
connector. The modem will be fully operational after 4 to 9 seconds. Logging onto a network may
take longer than this and is out of the modem’s control.
The
Automatic Restart after Shutdown
feature is enabled as part of the default factory settings, and
cannot be disabled. This means that if/when the modem has to be switched off, due to a critical
power supply, the modem will restart itself within a few seconds. This feature allows an application
to be switched on all the time and also allows it to restart itself.
There are two ways to switch off the MTX-DIN modem: by disconnecting it from the power supply or
by connecting pin TURN_OFF (pin 3) permanently to ground. The last option will power off only the
GSM module.
Furthermore, if you use the AT^SMSO command, the device will log off from the network and then
will be restarted. You can also restart the device by continuously activating the TURN_OFF pin (for at
least 1 second). This is not recommended except in an emergency case. A delay of up to 10 seconds
is experienced until the modem logs out of the network. The RTC stays active.