Method of connecting front Susb interface Line

USB (Universalserialbus), Universal Serial bus, as the most popular peripheral interface, can support multiple devices on the same port, up to 127 devices can be connected to use at the same time.

As early as 1995 began to appear with USB interface of the computer, but the lack of software and hardware set & support, so most of them are idle, Microsoft in the Winriows98 operating system to support the USB interface module, USB interface is increasingly widely used in computer peripherals.

At present, most of the chassis has a front-mounted USB interface, this interface is not connected to the back of the chassis via an extension cord, but is directly connected to the motherboard using a signal line, which adds a number of new interfaces while not occupying the original interface, but for the vast majority of Ghost XP SP3 system Novice Friends , the connection front USB interface line still has certain difficulty.

1, the realization of the front USB interface line

Let's take a look at the definition of the USB wiring on the front of the chassis, usually the red line: the power supply cathode (the wiring is labeled as: +5v or VCC), white line, negative voltage data line (labeled: data-or Usbport), green lines: Positive voltage data line (identified as: 10 or Usbport +), black line: grounding (identified as: Ground or GND). Some chassis manufacturers, based on their own process design requirements, the color of the signal line will not be introduced with the above, and take into account with the motherboard wiring convenience, accuracy, versatility, some chassis manufacturers will be the USB line into a chess block, and some chassis manufacturers take into account the USB cable and motherboard connection when the versatility, The signal lines are dispersed and each signal line is identified to accommodate many types of USB interfaces.

2, connect the front USB interface line

Front USB interface is similar to the design of the Pata interface, the use of the design method of prevention, we can only in the right direction to plug the USB interface, the direction is not correct to pick up. Now the general chassis will be the front of the USB wiring into a whole, we just find the corresponding pin on the motherboard, plug on it.

Generally speaking, the motherboard to put USB pins are used 9pin wiring, and there is a significant side of the USB logo. At present, the general chassis on the front USB connection is such an integrated type, above a total of 8 lines, is VCC, Data 10, DATA-,GND, this integration will not have to say, directly inserted on the line. If it is separate, generally in the red, white, green, black in order to connect.

3, Connection considerations

Front USB Interface line with the manufacturer's progress, the connection has been very convenient, but we still have to read the instructions before the introduction, to avoid incorrect access and burned the motherboard. There are some brands of motherboards if two USB devices are connected to the front USB device at the same time, there will be one of the normal use of the situation, which is the problem of this type of motherboard, two front usb used alone or normal.