Usb Port; Usb Connector Pinout - Advantech ICR-4401 Hardware Manual

2. Hardware Functionality

2.9 USB Port

The router features one USB 3.0 host port equipped with a USB-A type socket, supporting USB Mass
Storage devices and serial converters. For guidance on integrating an unsupported chip, please consult
the Commands and Scripts
Unsupported Serial Converter Chip.
The USB port is automatically disabled to prevent damage during an overload condition, which occurs
when a connected device draws excessive current. Normal operation is restored after rebooting the router.
Mounting USB Flash Drive to the System
To access a USB flash drive from within the router's system, it must first be mounted. Follow the steps
below:
• Execute the dmesg command to display the list of recently connected devices.
• Identify the USB flash drive in the output of the command, typically noted as:
sda: sda1
• Use the mount command to attach the drive to the mnt directory:
mount /dev/sda1 /mnt
For detailed instructions on commands for creating, mounting, checking, and unmounting a file system on
a USB Flash Drive, refer to the application note for the
USB Socket Pinouts
The pinout details for the USB socket are illustrated in Figure
Pin Signal mark
1 +5 V
2 USB data -
3 USB data +
4 GND
ICR-4401 Hardware Manual
application note, with particular attention to the chapter titled How to Use an
Figure 17: USB Connector Pinout
Description
Positive pole of 5 V DC supply voltage, 0.5 A
USB data signal – negative pole
USB data signal – positive pole
Negative pole of DC supply voltage
Table 14: USB Connector Pinout
Ext4 Filesystem Utilities
17 and further described in Table 14.
2.9 USB Port
router app.
Data flow direction
Input/Output
Input/Output
21