© 2019 KCodes Corporation. All rights reserved. 6 Series User’s Manual V1.0
Chapter 4 Using the USB Device Server
4.1. Introduction
The goal of this produce is to provide the USB device server in a single product. We developed a new
technology called “NetUSB” to achieve this goal. Basically, the “NetUSB” is a “USB over IP” technology
that transparently redirects all USB packets to TCP/IP network channel. “NetUSB” allows you to use USB
devices as if they were connected directly to your PC although they are actually remotely connected to
the 601/601n/604n/611/612 USB device server.
4.2. Connect & Disconnect
“NetUSB” allows you to use USB devices as if they were connected directly to your PC although they are
actually remotely connected to the 601/601n/604n/611/612/612ac USB device server. The “connect”
operation is a software operation that simulates an actual USB device plug-in. That is to say, when you do
a “connect” operation in the Control Center, PC can then detect a USB device’s plug-in, although actually
you do not plug in any USB device. Similarly, the “disconnect” operation is a software operation that
simulates the disconnection of the USB device. Once the connect operation is successful, the operations
to use that USB device are just the same as if the USB device is directly connected to the PC.
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. Therefore, if a USB device is connected by one
PC, no other PC can connect this USB device until this USB device is disconnected.
4.3. Subnet Issue
Before using the NetUSB technology, you must first make sure that your PC can access USB device server
via TCP/IP. The simplest way to do this is using “Control Center” to search for the USB device server on
the network and change its IP address to be the same subnet as your PC. If the server and your PC are not
in the same TCP/IP subnet, Control Center will show the server in red, as the following figure. You must
change the IP address (or using DHCP) of the server so that the server and your PC are in the same subnet.
Control Center will show these servers in blue, meaning you can access these servers by the NetUSB
technology.
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