Sitecom WLR-6000 User Manual page 71

Connect & Disconnect
"NetUSB" allows you to use USB printers when they're actually connected to the
Sitecom USB server.
The "connect" operation is a software operation that simulates an actual USB
device plug-in. Therefore, when you do a "connect" operation in the Control
Center, the PC can detect a USB device's plug-in, although actually you do not
plug in any USB device to your PC. Similarly, the "disconnect" operation is a
software operation that simulates the disconnection of the USB device.
Note
If a USB device is "connected" by a PC, we say that PC has the ownership of the
USB device. Only one PC can get the ownership of a USB device at the same
time.
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