5 Interfaces
49
Connection of USB Devices
The USB IF board supports the following USB devices:
• keyboard
• barcode scanner
• computer mouse or trackball
NOTE
• Connect only the above mentioned devices to the USB interface. Other devices are not supported.
As the fetal monitor software only supports two input devices, only two input devices can be
connected to the USB board. For this purpose, the USB ports are divided into two groups, a and b.
Only one input device per group is allowed. In the graphic below, a mouse is connected to a port in
each group. Therefore the keyboard is not recognized.
It is, however, possible to connect a mouse, a keyboard, and a barcode scanner. In this case, the
keyboard and barcode scanner are treated as one input device, and must be connected to two ports of
the same group.
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