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→Power up Modem
<section begin=powerup />
*Power up the modem using the next commands:
'''IGEPv2 Expansion:'''
<pre>echo 0 > /sys/class/gpio/gpio140/value
echo 1 > /sys/class/gpio/gpio141/value
sleep 1
echo 0 > /sys/class/gpio/gpio141/value</pre> *Once the modem is on (led near SIM card reader (IGEPv2 Expansion, is blinking now) or , you can interact with it via UART 2. '''IGEP BERLIN:'''<pre>echo 0 > /sys/class/gpio/gpio145/valueecho 1 > /sys/class/gpio/gpio163/valuesleep 1echo 0 > /sys/class/gpio/gpio163/value</pre> *Once the modem is on (led near power button is blinking now), you can interact with it via UART 2. You can use Microcom to comunicate with it from the serial debug console:
<pre>microcom -s 115200 /dev/ttyO1</pre>
*To check the modem status use the command:<br>