USB-1208LS User's Guide Installing the USB-1208LS
Installing the software
Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data
Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-
Quick-Start.pdf.
Installing the hardware
Be sure you are using the latest system software
Before you connect the USB-1208LS, make sure that you are using the latest versions of the USB drivers.
Before installing the USB-1208LS, download and install the latest Microsoft Windows updates. In particular,
when using Windows XP, make sure you have XP Hotfix KB822603 installed. This update is intended to
address a serious error in Usbport.sys when you operate a USB device. You can run Windows Update or
download the update from www.microsoft.com/downloads/details.aspx?familyid=733dd867-56a0-4956-b7fe-
e85b688b7f86&displaylang=en. For more information, refer to the Microsoft Knowledge Base article
"Availability of the Windows XP SP1 USB 1.1 and 2.0 update." This article is available at
support.microsoft.com/?kbid=822603.
To connect the USB-1208LS to your system, turn your computer on, and connect the USB cable to a USB port
on your computer or to an external USB hub that is connected to your computer. The USB cable provides power
and communication to the USB-1208LS.
When you connect the USB-1208LS for the first time, a Found New Hardware popup balloon (Windows XP)
or dialog (other Windows versions) opens as the USB-1208LS is detected by your computer.
Another Found New Hardware balloon or dialog opens after the first closes that identifies the USB-1208LS as
a USB Human Interface Device.
When this balloon or dialog closes, the installation is complete. The LED on the USB-1208LS should flash and
then remain lit. This indicates that communication is established between the USB-1208LS and your computer.
Caution! Do not disconnect any device from the USB bus while the computer is communicating with the
USB-1208LS, or you may lose data and/or your ability to communicate with the USB-1208LS.
If the LED turns off
If the LED is illuminated but then turns off, the computer has lost communication with the USB-1208LS. To
restore communication, disconnect the USB cable from the computer, and then reconnect it. This should restore
communication, and the LED should turn back on.
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