Planex UE-100TX, User Manual

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UE-100TX

With traditional external interfaces, each connected device requires its own 

resource.  If the system has a keyboard, a mouse, a serial port and a printer,

for instance, a total of four IRQ resources are used for these devices.  On the 

other hand, a USB device uses only one resource even when up to 126 

additional devices are attached to it.  Furthermore, all USB devices use the 

same USB cable; the user no longer needs to obtain multiple cables with 

different connector types.

Undoubtedly, USB is a cost-effective, easy-to-use new connection standard 

with a minimum computer resource requirement.  Many computer 

peripherals with USB support are already available today.

Using the UE-100TX, you can easily connect your PC with USB support to 

10BASE-T/100BASE-TX Ethernet networks.  As the adapter fully supports 

Plug & Play, its installation is easy and quick.  Just like ordinary 10BASE-

T/100BASE-TX network adapters, the UE-100TX functions as an interface 

between your PC and Ethernet networks. 

The USB Ethernet Adapter is equipped with the latest chipset from 

ADMtek, and is ready for Flow Control in full duplex mode (IEEE802.3x), 

a feature not supported by traditional NICs.  When combined with a 

switching hub with IEEE802.3x Flow Control support (Ex. FX-08NW), the 

UE-100TX performs full duplex flow control to effectively control packet 

losses.  

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UE-100TX

The USB standard supports both Low Speed mode (1.5Mbps) and High 

Speed mode (12Mbps).  When a USB device is connected to a host, the 

device notifies the host which speed setting should be used.  Whenever a 

new USB device is added, the host sets a schedule that determines at what 

interval data should be sent to which USB device. All USB devices support 

Hot Swap feature that allows each device to be added or removed while the 

PC is online. Not only that, all USB devices support Plug and Play function 

that enables the devices without rebooting the PC.  Due to these two 

features, the user can quickly employ a USB device anytime it is needed.

Each USB device is equipped with one or more downstream port(s) (Type B 

connector) and one upstream port (Type A connector).  Type A and Type B 

connectors differ in shape, and are used to avoid connecting cables in a 

wrong direction.  To connect two USB devices, the downstream port on one 

device needs to be connected to the upstream port on the other device via a 

USB cable.  A USB device may connect to any port as long as the connector 

type matches.  No loop is allowed in one bus tree, and a computer other than 

the host PC may not be included in the tree.

USB devices operate from either an external AC power adapter (“Self 

Power Mode”) or from power supplied through the USB cable (“Bus Power 

Mode”). USB devices with lower power consumption, such as mouse and 

keyboard, may use the Bus Power Mode to directly draw its power from a 

USB cable.  Devices with Bus Power Mode support are further subdivided 

into low power consumption devices (up to 100mA) and high power 

consumption devices (100 to 500mA).  Since no AC adapter is required, 

devices with Bus Power Mode support are easy to setup.  However, an AC 

adapter may be required when USB devices with high power consumption 

are in use.  Please always check whether enough power is supplied to all of 

the USB devices attached. 

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Product Overview