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2. Hardware Functionality
2.7 USB 3.0 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 3.0 Socket Pinouts
The pinout details for the USB 3.0 socket are illustrated in Figure
Pin
1
2
3
4
5
6
7
8
9
ICR-4161 Hardware Manual
application note, with particular attention to the chapter titled How to Use an
Figure 16: USB 3.0 Connector Pinout
Signal mark
Description
VBUS
5 V DC Power, 0.5 A
D-
USB 2.0 differential pair -
D+
USB 2.0 differential pair +
GND
Ground for power return
StdA_SSRX-
SuperSpeed receiver differential pair -
StdA_SSRX+
SuperSpeed receiver differential pair +
GND_DRAIN
Ground for signal return
StdA_SSTX-
SuperSpeed transmitter differential pair -
StdA_SSTX+
SuperSpeed transmitter differential pair +
Table 7: USB 3.0 Connector Pinout Descrition
Ext4 Filesystem Utilities
16
and further described in Table 7.
2.7 USB 3.0 Port
router app.
19
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