USB connection with wires. USB plug pinout. Connecting a block with USB ports instead of a floppy

Install the required drivers. If you still have the packaging from the USB drive, then read the instructions and find out if the correct driver is included in the kit. A driver is a software component that allows data to be exchanged between a flash drive and a computer. All operating systems download the necessary drivers automatically, but if you are not connected to the Internet or need to install the driver manually, then just follow the instructions.

In this case, the driver is usually included on the bundled disk. Place the CD in the drive and follow the prompts.

Turn on the device and computer. If the USB flash drive is equipped with a power switch or a special cable, the device must be turned on before connecting to a PC. Also, don't forget to turn on your computer.

Connect the USB cable to the device (if necessary). Typically, small storage devices have a built-in USB connector, but portable hard drives and other devices may come with a cable. Connect the cable to the device to then connect it to the computer.

Locate the USB port on your computer. The connector will look like a small rectangular hole with 4 metal pins inside. Usually, a USB port is identified by the corresponding logo in the form of a circle and an arrow with three prongs. If such a device will be constantly connected to the PC, then it is better to use the port on the back of the computer. Front connectors are more convenient for quick and short-term connection.

Connect the USB cable to the computer's USB port. Decide which port you want to use, then simply plug the drive connector into it. The connector should fit snugly and effortlessly in one direction, so rotate the cable 360 degrees if you can't connect the drive.

Wait for the driver installation to complete. When you connect the device for the first time, the operating system can search for and install the necessary drivers. After a few seconds, your computer will give you an alert that the driver installation is complete and the device is ready to use. If you have already installed the drivers manually, the drive will be ready to use right away.

After completing the necessary steps, disconnect the USB drive. After work, the device should be turned off or "removed". In Windows, right-click on the USB device icon in Explorer and select "Eject". On a Mac, select and drag the drive icon to the Trash so that the Eject icon appears. After that, you need to physically remove the drive from the connector, without putting much effort.

Most modern mobile phones, smartphones, tablets and other wearable gadgets support charging via a USB mini-USB or micro-USB socket. True, it is still far from a single standard, and each company is trying to make the pinout in its own way. Probably to buy a charger from her. Well, at least the USB plug and socket itself were made standard, as well as the supply voltage of 5 volts. So with any charger-adapter, you can theoretically charge any smartphone. How? and read on.

Pinout USB connectors for Nokia, Philips, LG, Samsung, HTC

Nokia, Philips, LG, Samsung, HTC and many other brands of phones will only recognize the charger if the Data+ and Data- pins (2nd and 3rd) are shorted. You can short-circuit them in the USB_AF socket of the charger and safely charge your phone through a standard data cable.

Pinout of USB connectors on the plug

If the charger already has an output cord (instead of an output jack) and you need to solder a mini-USB or micro-USB plug to it, then you do not need to connect pins 2 and 3 in the mini/micro USB itself. At the same time, you solder plus on 1 contact, and minus - on the 5th (last).

Iphone USB pinout

For iPhones, the Data + (2) and Data- (3) pins must be connected to the GND pin (4) through 50 kOhm resistors, and to the + 5V pin through 75 kOhm resistors.

Samsung Galaxy Charging Connector Pinout

To charge the Samsung Galaxy, a 200 kΩ resistor between pins 4 and 5 and a jumper between pins 2 and 3 must be installed in the USB micro-BM plug.

Pinout of USB connectors for Garmin navigator

A special data cable is required to power or charge your Garmin navigator. Just to power the navigator through the cable, you need to short-circuit pins 4 and 5 in the mini-USB plug. For recharging, you need to connect pins 4 and 5 through an 18 kOhm resistor.

Pinout schemes for charging tablets

Almost any tablet computer requires a large current to charge - 2 times more than a smartphone, and charging through the mini / micro-USB socket in many tablets is simply not provided by the manufacturer. After all, even USB 3.0 will not give more than 0.9 amperes. Therefore, a separate nest is placed (often of a round type). But it can also be adapted to a powerful USB power source if you solder such an adapter.

Samsung Galaxy Tab Charging Socket Pinout

To properly charge the Samsung Galaxy Tab tablet, a different scheme is recommended: two resistors: 33 kOhm between +5 and the D-D + jumper; 10 kΩ between GND and jumper D-D+.

Charging port pinout

Here are some diagrams of the voltages on the USB pins, indicating the value of the resistors that allow these voltages to be obtained. Where a resistance of 200 ohms is indicated, a jumper must be installed, the resistance of which should not exceed this value.

Charger Port Classification

SDP(Standard Downstream Ports) - data exchange and charging, allows current up to 0.5 A.
CDP(Charging Downstream Ports) - data exchange and charging, allows current up to 1.5 A; hardware recognition of the port type (enumeration) is performed before the gadget connects the data lines (D- and D +) to its USB transceiver.
DCP(Dedicated Charging Ports) - charging only, allows current up to 1.5 A.
ACA(Accessory Charger Adapter) - PD-OTG operation in Host mode is declared (with connection to PD peripherals - USB-Hub, mouse, keyboard, HDD and with the possibility of additional power), for some devices - with the ability to charge PD during an OTG session .

How to remake the plug with your own hands

Now you have a pinout diagram for all popular smartphones and tablets, so if you have the skill of working with a soldering iron, there will be no problems with converting any standard USB connector to the type you need for your device. Any standard charging, which is based on the use of USB, involves the use of only two wires - this is + 5V and a common (negative) contact.

Just take any charging-adapter 220V / 5V, cut off the USB connector from it. The cut end is completely freed from the screen, while the remaining four wires are stripped and tinned. Now we take a cable with a USB connector of the desired type, after which we also cut off the excess from it and carry out the same procedure. Now it remains just to solder the wires together according to the diagram, after which the connection is isolated each separately. The resulting case is wrapped on top with electrical tape or tape. You can pour hot glue - also a normal option.

Bonus: all other connectors (jacks) for mobile phones and their pinouts are available in a single large table -.

Hi all! Today we will consider several questions at once on the topic of how to connect USB to a computer. First, we will learn how to connect any device to a PC or laptop. And secondly, I will tell you how you can connect additional USB ports to your computer if you do not have enough of them for all devices. So let's go!

How to connect a USB cable to a computer?

The USB port is by far the most common type of device connection to a computer or laptop. There are three data connectors - 1.0, 2.0 and 3.0. If the first one can now be found only on the oldest computers, then the second and third are used today. At their core, they differ in data transfer speed. And in appearance, what is more important for us now is color. USB 2.0 has a black connector and plug, USB 3.0 is blue. You can read more about the specifications and differences between the standards.

Before connecting the USB cable to the computer, look at the plug of your gadget - if you connect the blue connector to the black port, the device will not use all its speed characteristics to the maximum. If you plug the black plug into the blue one, absolutely nothing will happen - just the USB 3.0 port will work at the maximum speed for 2.0.

So, we look at the back panel of our computer, find the USB port of the same color as the plug, and connect it.

After that, the device will either be determined by itself in the system, if it is a keyboard, mouse, webcam, or some other simple and common device for which Windows already has a driver. Or for work it will be necessary to install the software that is attached to the device on CD.

How to connect additional USB ports to a computer?

Any modern motherboard already has built-in USB ports - both 2.0 and 3.0. However, we usually connect so many different peripherals that they can easily be missing, for example, in order to connect a USB flash drive or an external drive and transfer fresh photos to it.

Connecting a USB bracket to the rear panel

What to do? There are two ways. The first, preferred one is to buy a separate bracket with USB ports and insert it into additional slots on the back of the case - in the same slots where we attach a video or sound card, a wireless adapter, and other components connected directly to the board. It looks like this:

In order to carry out this task, it is necessary that the motherboard supports connecting additional USB ports. This can be determined by the presence on the system board of connectors labeled USB or USB 3.

USB 3.0 connectors are large, have many pins and are designed to connect two ports at once in one plug.

USB 2.0 is smaller and each of them can be connected to 2 ports separately.

Accordingly, we look at the presence of such connectors on the motherboard, buy the appropriate brackets, fix them in the back of the case and connect them to our connectors.

Connecting a block with USB ports instead of a floppy

Another variation of this method of increasing the number of ports is a special USB block, which is inserted in the front of the case instead of the old floppy drive - 3.5 floppy.

There are many options for this block. For example, combined for connecting USB 2.0 and 3.0

And in the following example, USB 2.0 ports are combined with microphone and headphone jacks

The connection of such a block occurs in exactly the same way as the bar described above - to the corresponding connectors on the motherboard.

External USB hub

Finally, another option to increase the number of ports is to buy an external USB hub. However, there are a number of disadvantages here, because of which I would not connect any serious equipment through it, but would use it only for flash drives or, in extreme cases, a mouse.

Since this is a hub, all the load from several of its ports goes to one single computer to which it is connected. Due to this overload, certain devices can periodically fall off, which is not good. If you connect a hard drive to the USB hub, then the electricity supplied through it may not be enough for its operation. Therefore, we leave this method only for light fast food - flash drives.

Universal Serial Bus (USB) pinout diagram

USB connector wiring diagram

USB connectors wiring diagram (cable and device)

USB signals are transmitted over two wires (twisted pair) of a shielded four-wire cable.

VBUS - voltage +5 Volts of the power circuit, GND - contact for connecting the "case" of the power circuit. The maximum current consumed by the device through the power lines of the USB bus must not exceed 500 mA. Data is transferred via the D- and D+ pins of the USB connector. The differential mode of data transfer is the main one for USB.

USB cable connectors

The USB cable uses special USB connectors. The USB cable is directional, so the USB connectors have different configurations for proper connection. There are two types of USB connectors: Type A (see Fig.7 and Fig.8) and Type B (see Fig.9, Fig.10 and Fig.11).

Fig.7. Regular USB cable connector Type A

In accordance with the USB 1.0 specification, Type A connectors are used to connect "to the host" i.e. installed on the side of the USB controller or hub.

Fig.8. "Proprietary" USB cable connector Type A

According to the USB 1.0 specification, Type B connectors are used to connect "to the device" i.e. for connecting peripheral devices.

Fig.9. The usual USB cable connector Type B. This connector is suitable, for example,
to connect a printer

Fig.10. Regular USB mini cable connector Type B

Fig.11. Micro USB cable connector Type B. In the figure, below the USB symbol, the designation Type B is clearly visible.

On Fig.12. and Fig.13. USB cables shown. These USB cables are equipped with a regular Type A USB cable connector and a Type B USB mini cable connector.

Fig.12. USB cables are equipped with a regular Type A USB cable connector (shown on the left) and a USB mini Type B cable connector (shown on the right). Type B is designated as B

Fig.13. USB cables are equipped with a regular Type A USB cable connector (shown on the left) and a USB mini Type B cable connector (shown on the right). Type B is designated as b

Fig.14. USB cable equipped with a miniature connector called micro USB

USB supports hot (power on) plugging and unplugging devices. This is achieved by increasing the length of the grounding contact of the connector in relation to the signal contacts, see Fig.15. When connecting the USB connector, the ground contacts are closed first, the potentials of the cases of the two devices are equalized, and further connection of the signal conductors does not lead to overvoltages, even if the devices are powered by different phases of the three-phase power network.

Fig.15. The length of the grounding contact (in the figure, pin 4 GND at the top) of the connector is increased in relation to the signal (in the figure, pin 3 D+ at the bottom) contacts. The top contact is longer than the bottom. This allows you to connect and disconnect devices without turning off the power (the so-called "hot" connection and disconnection)

Fig.15.a. The length of the USB power contacts of the flash card connector (in the figure, the extreme contacts) is increased in relation to the signal (in the figure, the middle contacts) contacts. This allows you to connect and disconnect devices without turning off the power (the so-called "hot" connection and disconnection)

Mating parts of USB connectors are located on peripheral devices connected via USB, see Fig.16. and Fig.17.

Fig.16. Connector for connecting the USB cable connector. The USB symbol is clearly visible

Fig.17. Connector for USB cable connector mini Type B

Fig.18. Size comparison of USB connectors. Regular USB cable connector Type A (left picture), USB mini cable connector Type B (center picture) and USB micro cable Type B (right picture). Type B is designated as B

USB (Universal Serial Bus) - The USB data transfer interface is ubiquitous today, used in almost all devices - phones, PCs, MFPs, tape recorders and other devices are used both for data transfer and for charging phone batteries.

Types of USB connectors.

There are many different types of USB connectors. All of them are shown below.

Type A- active, powering device (computer, host). Type B- passive, connected device (printer, scanner)

USB cable pinout by color.

Usb 2.0 pinout.

USB is a serial bus. It uses 4 shielded wires: two for power (+5v & GND) and two for differential data signals (labeled D+ and D-).

usb micro

USB micro has been used since 2011 in phones, MP3s and other devices. Micro is a newer version of the mini connector. It has an advantage in the connection of connectors, the connector is connected tightly to the plug and provides a tight connection.