Chapter4 Using The Hmps1U; Introduction; Connect & Disconnect; Subnet Issue - Hawking HMPS1U User Manual

Chapter4
4.1

Introduction

The goal of this product is to provide network support for USB devices. 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 a 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 HMPS1u.
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 HMPS1u. 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
HMPS1u setup software, the PC can then detect a USB device's plug-in, even
though you did not physically plug in a USB device to your computer.
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 the HMPS1u via TCP/IP. The simplest way to do this is using
HMPS1u's setup software to search for the HMPS1u 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, the HMPS1u's setup software
will show the server in red, as shown in the following figure. You must
change the IP address (or use DHCP) of the server so that the server and
your PC are in the same subnet. The HMPS1u setup software will show these
Using the HMPS1u
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