Operation - MTX -3G-JAVA-IoT User Manual

5. Operation

5.1 Switching on 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 (see Section
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
can't 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.
5.2 Power modes
The MTX-IoT devices ordered with Ultra Low Power (U) or Low Power (L) options can enter into two
reduced consumption power modes depending the option: Ultra Low Power or Low Power.
5.2.1 Ultra Low Power mode
In this mode, all the board devices are disconnected from the power supply, except a little portion of
digital logic and a RTC that allows the modem to exit from this mode and go back into the normal
mode. In this mode the MTX-IoT only requires 2.5µA to supply the internal logic.
When an ULP modem enters in Ultra Low Power mode, you can wake up it again in several ways:
•
By optoisolated inputs (see
low input allowing the modem to power up again.
•
By the RTC alarm: please read the MTX-IoT Family Software Manual to configure the RTC
alarms
It is possible to know if the modem has been woken up by inputs or the RTC alarm by reading the
status latches.
Devices ordered with Ultra Low Power Controller option (U) also can enter in Low Power Mode which
is explained in section 5.2.2.
To learn how to configure and enter into the Ultra Low Power mode please read the MTX-IoT Family
Software Manual
www.mtxm2m.com
4.1). The modem will be fully operational after 4 to 9 seconds. Logging onto a
Section 4.1.3): there are an active-high input and another active-
2017/07 v1.2
MTX M2M® by MATRIX ELECTRONICA S.L.U
MTX-xG-JAVA-IoT Family
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