Introduction
This manual describes how to set up and install your USB-to-Serial Adapter.
U209-004 and U209-008 provide four or eight independent RS-232 serial interfaces to the host PC via the Universal Serial Bus (USB) port.
Each adapter uses high-speed UARTs and deep FIFOs, allowing each channel to obtain data rates up to
921.6kbps. The adapters are powered over their USB connection (bus-powered), eliminating the need for an external power supply. The adapters are Plug-and-Play devices and require no hardware configuration.
Note: These products comply fully with USB Specification version 2.0. They will also operate over slower USB 1.1 connections at a slightly reduced performance level.
System requirements
USB-to-Serial adapters are supported under the Windows 2000/XP (and later) and Linux operating systems. One USB port is required to connect the adapter to your computer. You can use either a built-in USB port or an add-in USB host adapter. We recommend the use of a USB 2.0 port for best performance.
Installing the USB-to-Serial Adapter
Caution!
Be sure to allow the installation process to finish without interruption
This section explains how to install the USB-to-Serial adapter under different operating systems. Please locate and follow the procedure for your computer's operating system.
The USB-to-Serial adapter includes Windows device drivers that enable the serial ports to appear to Windows as standard COM ports.
Installing under Windows XP
Follow these steps to install the adapter under Windows XP.
1.Turn the power to your computer ON. This is the system to which the device is to be connected.
2.Plug the wide flat end of the USB cable into the downstream connector. This is the connector located on the back of the computer or USB hub.
3.Plug the square end of the USB cable into the USB-to-Serial adapter. Windows tells you that it has found new hardware and launches the Found New Hardware Wizard (figure 1).
Figure 1 - The Found New Hardware Wizard launches automatically when you first plug in the USB-to-Serial adapter.
