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108 ST-133 Controller Manual Version 3.B
Setting up a USB 2.0 Interface
Introduction
Administrator privileges are required under Windows
®
2000 and Windows
®
XP to install software and hardware.
Your system has been configured to use the USB communication protocol if the
Interface Control Module
installed in the ST-133 has a
USB 2.0
connector as
shown in the figure at right). The advantages to the USB 2.0 interface are that it
uses a much higher data transfer rate than many common serial data formats (such
as the TAXI protocol) and it simplifies the connection to external devices. USB
supports "plug and play" -- you do not need to be heavily involved in the setup
process. The limitations are that the maximum cable length is 5 meters (16.4 feet)
and that 1 MHz is currently the upper digitization rate limit for the ST-133.
The USB 2.0 interface is supported by WinView/32 and WinSpec/32, versions
2.5.14 and higher.
TTL
IN/OUT
AUX
USB 2.0
USB 2.0 Installation
To Replace a TAXI Module Interface Control Module with a USB 2.0 Module:
If you ordered a USB 2.0 Interface module separately and are retrofitting an ST-133 that
you already own, follow the module replacement instructions in "Removing/Installing a
Plug-In Module" starting on page 83.
To Install the USB 2.0 Interface:
The following information assumes that:
• You have verified that the host computer meets the required specifications for
USB 2.0 communication with the camera system (see page 13).
• A USB 2.0 board and its driver are installed in the host computer.
• The ST-133 has an installed USB 2.0 Interface Control module.
• You have already installed the WinView/32 or WinSpec/32 software
(versions 2.5.14 and higher). Versions 2.5.14 and higher automatically
install the driver and INF files required to support the USB 2.0 Interface
Control module.
1. Before installing the Roper Scientific USB2 Interface, we recommend that you
defragment the host computer's hard disk. This operation reduces the time the
computer spends locating files. Typically, the "defrag" utility "Disk
Defragmenter" can be accessed from the Windows
®
Start menu and can
usually accessed from the Programs/Accessories/System Tools subdirectory.
2. After defragmenting the hard disk, turn off the computer and make the USB
cable connections between the host computer and the ST-133. Then, turn the
ST-133 on before turning on the host computer.
3. At bootup, Windows will detect the Roper Scientific USB2 Interface hardware
(i.e., the USB 2.0 Interface Control module). You may be prompted to enter
the directory path(s) for the apausbprop.dll and/or the apausb.sys file(s), either
by keyboard entry or by using the browse function.