7
Installing the REX Unit
1.
Place the REX near and connect it to the USB device.
Checking the Installation
1.
On the LEX and REX units, check that the Power and Link LEDs are on. If the Link LEDs are
permanently off or blinking, then the cable between the LEX and REX units may not be installed
properly or is defective.
2.
For Windows users (7, 8, 8.1, 10), open Device Manager to confirm that the extender system has
been installed correctly. Expand the entry for Universal Serial Bus controllers by clicking the “+” sign.
If the extender system has been installed correctly, you should find only one instance of “Generic
SuperSpeed USB Hub” listed.
To open Device Manager in Windows 7:
Open the Start Menu, right click on “Computer” then select: Manage >> Device Manager
To open Device Manager in Windows 8, 8.1 or 10:
Right click the Start Menu and then select: Device Manager
3.
For macOS users, open the System Profiler to confirm that the extender system has installed correctly.
In the left-hand column under Hardware, select “USB” and inspect the right-hand panel. If the
extender has been installed correctly, you should find it listed as one instance of “Hub”
under the USB SuperSpeed Bus.
To open System Profiler in macOS:
Open the Finder, select Applications, then open the Utilities folder and double click on the System Profiler icon.
4.
If the extender system is not detected correctly or fails to detect, please consult the Troubleshooting
section in this guide.
Connecting a USB Device
1.
Install any software required to operate the USB device. Refer to the documentation for the USB
device, as required.
2.
Connect the USB device to the device port on the REX.
3.
Check that the device is detected and installed properly in the operating system.
Compatibility
The USB 3-2-1 Starling 3251C complies with USB 1.1, USB 2.0 and USB 3.2 Gen 1 specifications governing the
design of USB devices. However, there is no guarantee that all USB devices or hosts will be compatible as
there are a number of different characteristics that may impact the operation of USB devices over extended
distances. USB Bus power operation is only guaranteed with USB-C Upstream facing port connections with a
USB-C cable.
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