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2.4.3 USB Connector
The USB device allows data exchange between your computer and a wide range of simultaneously
accessible external Plug and Play peripherals.
The KMDA-2701 supports up to seven USB-interface connectors，one is USB3.0, six are USB2.0. These
USB-interface connectors give complete Plug & Play and hot swap capability for up to 127 external
devices. The USB interface complies with USB UHCI, Rev. 2.0 compliance. The USB interface can be
disabled in the system BIOS setup.
The USB-interface connector is used for connecting any device that con-forms to the USB interface.
Many recent digital devices conform to this standard. The USB interface supports Plug and Play, which
enables you to connect or disconnect a device whenever you want, without turning off the computer.
The USB2.0 pin definition is as follows：
The KMDA-2701 provides one USB3.0 port by type A connector. Please refer to Table 2.3 for their pin
assignments.
Figure 2.15 USB2.0 connector
Table 2.2: USB2.0 Connector
Pin
Signal
1
USB_VCC
2
USB_D-
3
USB_D+
4
USB_GND
Figure 2.16: USB3.0 Connector
16
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