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WSAL23929 – USB3.2-Gen1-HUB-2IN-4OUT/en

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Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

This industrial USB hub expands four USB 3.2 Gen1 (5 Gbit/s) outputs via two switchable host inputs. It features multi-protection circuits, a rugged metal enclosure with mounting holes, and per-port LED indicators.

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Technical overview

  • Four expanded USB output ports with a maximum speed of 5 Gbit/s; two switchable inputs allow sharing USB devices between two hosts.
  • Industrial-grade hub chip; the USB 2.0 interface uses MTT technology.
  • Each USB port includes ESD protection against surge damage and data loss.
  • Over-voltage protection prevents high-voltage power inputs from damaging connected devices.
  • Multiple protection circuits: over-voltage, over-current, short circuit, over-temperature, reverse current, under-voltage lock-out, 8 kV ESD protection.
  • Industrial-grade metal case with mounting holes for easy installation.
  • Input: DC power jack and round-hole power port accept 7–36 V; USB input allows only 5 V.
  • Maximum output current per USB port is 1.2 A; exceeding this triggers short-circuit protection – remove the device to recover.
  • Operating temperature range: -10 °C to 85 °C, no condensation; the module is not waterproof.
  • LED1–LED4 indicate enumeration of each USB device: when a device is connected and enumerated successfully, the corresponding LED lights up; some modules require software enablement before the LED illuminates.
  • Red PWR LED indicates power supply; green LEDs identify use of the USB interfaces.
  • On Raspberry Pi: insert the module into the 40-pin GPIO header, connect via a USB 3.0 adapter, and attach 5 V power to the POWER ONLY port.
  • In Ubuntu on Raspberry Pi: locate the disk in the menu, select the correct disk, choose “Benchmark Partition,” start the write benchmark, and keep default settings.
  • On a Windows PC: connect the USB port to the PC’s USB 3.0 port to copy files to an SSD or connect four phones simultaneously.

Commands and examples – verify before use:  

cd ../..
cd media/pi/xxx
sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches"
dd if=/dev/zero of=./test_write count=2000 bs=1024k
dd if=./test_write of=/dev/null count=2000 bs=1024k
sudo apt-get update
sudo apt-get install hdparm -y
sudo hdparm -tT /dev/sda*
ls /dev/sd*
while true; do sudo hdparm -t /dev/sda2; sleep 10; done

Notes and version constraints

  • The exact hdparm commands may vary by version; verify before running them.
  • The path “media/pi/xxx” depends on the mounted drive name.
  • On Raspberry Pi, the LED may only light after enabling the relevant software; this is device-specific.
  • The module is not waterproof and must not be operated under condensation conditions.
  • When short-circuit protection trips, the connected device must be physically removed to reset the protection.

Source and revision record

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