Encore electronic ENNUS1 - Manual (Page 9)

Chapter4 Using the ENNUS1 Server
4.1 Introduction
The goal of this product is to provide connectivity to USB devices from a single server.
A new technology, “NetUSB”, has been developed to achieve this goal. “NetUSB” is a
“USB over IP” technology that transparently redirects all USB packets to a TCP/IP
network channel. “NetUSB” allows you to use remote USB devices as if they are
connected directly to your PC.
4.2 Connect & Disconnect
“NetUSB” allows you to use remote USB devices as if they are connected directly to
your PC. 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
ENNUS1 server via TCP/IP. The simplest way to do this is using “Control Center” to
search for ENNUS1 server on the network and change its IP address to be the same
subnet as your PC. If the ENNUS1 server and your PC are not in the same TCP/IP
subnet, Control Center will show the ENNUS1 server in green, as in the following
figure.
1 .
8