UNIPRO – The original Laptimer
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USB
USB is a shortcut for Universal Serial Bus and is a pure PC standard. It is a high-speed serial link
with two different speeds: USB 1.1 with a maximum speed of 12Mbps and USB 2.0 with a
maximum speed of 480Mbps. The standard is divided into hosts (master) and devices (slave).
Both the Unipro Laptimer and the Data Analyser are devices. In a system, a host is always needed
and that is why it is not possible to connect the Laptimer to the Data Analyser using the USB
cable! A future standard, called USB on the Go will combine the two things, enabling equipment to
be both a host and a device.
For none standard USB equipment to be used on a PC, a USB device driver is needed. The USB
standard is a plug and play standard, and the PC will find new equipment when it is plugged into
the USB port on the PC. The first time it will try to find a driver and install it. After that, you just
plug the USB device in and out as you like, even with the power on.
