Low Power Mode; Usb Port - Advantech ICR-2701 User Manual

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2.3 Low Power Mode

In applications requiring low power consumption (such as solar power - not 7/24 mode)

is strictly recommended to use LPM mode prior to powering down the entire router.

LPM (Low Power Mode) is a router mode where the router is in sleep mode with minimal

power consumption; see Chapter

from this mode after a predetermined period of time. Putting the router into LPM mode can be

done using the lpm command, see

There is one USB 2.0 host port with socket of USB-A type. USB Mass Storages and FTDI

serial converters are supported. For a piece of advice, how to ﬁx an unsupported FTDI chip,

see the

Commands and Scripts

The USB port is disabled on overload to prevent its damage (connected device is trying to get

too high current). The port is enabled again after the reboot of the router.

Mounting USB Flash Drive to the System

It is necessary to mount the USB ﬂash drive to be able to access it in the system of the

router. Follow these steps to mount the drive:

Use the dmesg command to see the list of recently connected devices.

In the output of the command ﬁnd out the entry for the microSD card, for example:

sda: sda1

To mount the card to to mnt directory, use the mount command:

mount /dev/sda1 /mnt

For more information about the commands for creating, mounting, checking and unmounting

a ﬁle system on a USB Flash Drive, see the application note for

4.1

for the LPM consumption. The router can be woken up

Commands and Scripts

application note, chapter How to Use Unsupported FTDI Chip.

ICR-2701

application note for more details.

Ext4_tools

router app.

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