Printer usb connector pinout. USB connector pinout. Pinout diagrams for charging tablets

The USB connector is a universal serial bus. Today, this connector in various form factors is present on almost any electronic gadget or device. However, due to long-term operation, a negative situation may arise - the connector either breaks off or is unsoldered (taking into account the presence of high temperatures).

Read more about how to replace the connector in the article below. It should be remembered that if you use all the given methods, then only at your own peril and risk! As a rule, when a non-professional tries to repair complex electronics on his own, everything ends extremely badly.

If the situation described above occurs, many professionals advise purchasing a new connector. For the price it costs mere pennies. Sold in any computer store.

In order not to confuse the connector with anything, it is better to go shopping with the old connector (which fell off). You need to buy exactly the same one. The following is a set of tools that you will definitely need to replace the connector:

• soldering flux;
• soldering iron with a thin tip;
• rosin;
• solder.

The standard UBS connector has several pins. It is extremely important that these pins fit into the vias that are intended for them. But before placing the connector on the board, it is recommended to clean the contacts.

This is done using an ordinary rubber eraser, which is used to remove a simple pencil from paper. This will eliminate the possibility of poor contact after soldering.

It should be immediately noted that it is recommended to solder the leads in such a way that no excess solder sticks out. After all, it conducts electricity, which means it can short to ground if the board is installed incorrectly in a laptop (or any other device).

In order for a non-professional to perform soldering correctly, it is recommended to use flux or rosin. This will prevent the solder from sticking to the soldering iron tip.

As a result, the soldering will be neat and durable.

It is extremely important not to overheat the board itself during soldering. After all, there are paths in it. If they overheat, they may rise, which will disrupt the entire operation of the device.

The video will demonstrate how you can replace the USB connector on a laptop yourself:

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

Types of USB connectors.

There are a large number of types of USB connectors. All of them are shown below.

Type A- active, power supply 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, MP3 and other devices. Micro is a newer variation of the mini connector. It has the advantage of connecting connectors, the connector is connected tightly to the plug and provides a tight connection.

USB (Universal Serial Bus) The whole variety of USB version 2.0 connectors is shown in the picture below. The picture is clickable.

To avoid discrepancies: In all tables, the type of connector is given from its external, working side (and not from the mounting side!), unless otherwise specifically stated. The insulating parts of the connector are marked in light gray, the metal parts are marked in dark gray, and the connector cavities are marked in white.

Well, and a simplified, so to speak, practical diagram:

The name of a particular connector is provided with letter indices.

Connector type:

• A - active, power supply device (computer, host)
• B - passive, connected device (printer, scanner)

"Gender" of the connector:

• M (male) - plug, “male”
• F (female) - nest, “mother”

Connector size:

For example: USB micro-BM plug (M) for connecting to a passive device (B); micro size

USB connector pinout (jacks and plugs)

The purpose of the wires in the USB cable is as follows:

1. Red VBUS (+5V, Vcc - Voltage Collector Collector) +5 Volts DC voltage relative to GND. Maximum current - 500 mA
2. White D-(-Data)
3. Green D+ (+Data)
4. Black GND - common wire, ground, minus, 0 Volt

Mini and micro connectors contain 5 contacts:

1. Red VBUS
2. White D-
3. Green D+
4. ID - not used in connectors “B”; in connectors “A” is closed to GND to support the “OTG” function
5. Black GND

Among other things, the cable contains (though not always) a bare Shield wire - housing, screen, braid. This wire is not assigned a number.

Good news

A reversible micro-USB plug is being announced on the Internet, which, like USB 3.1 Type-C, does not require a clear ±180° orientation when connected to a socket.

Mouse and keyboard cord pinout

Some mice and keyboards may have different cable colors than standard. Detailed article about non-standard colors: “Custom USB colors in mouse and keyboard cords”

Read also about connecting mice and keyboards to the PS/2 port

How to unsolder USB?

Well, with regular USB everything is simple - you take a mirror image of the front part of the connector and solder it.

The wiring of the USB mini and USB micro plugs from the mounting side is shown in the picture below. If you are soldering a simple data cable (for connecting a PC and a mobile phone/smartphone/tablet), then do not use the 4th contact. When soldering an OTG cable (for connecting flash drives and other things to a smartphone), connect the 4th pin to the 5th.

Mini and micro connectors contain 5 contacts. Type B connectors do not use the fourth pin. In type “A” connectors, the fourth pin is connected to GND. And the GND contact itself takes an honorable fifth place.

And here is a complete diagram of the USB cable with a screen.

Related materials:

All materials on the topic “USB” All materials on the topic “Charger” All materials on the topic “Computer”

Tags: USB, Cable, Computer, Mobile, Connector, Pinout (Wirout)

rones.su

Pinout of USB ports, pinout of micro USB, mini connector for charging

Currently everything mobile devices and desktop electrical appliances have data ports in their arsenal. Modern gadgets can not only exchange information via USB or micro-USB, but also charge batteries. In order to carry out proper pinout of contacts, you first need to study the diagrams and colors of the wires.

USB cable wire colors

Connector diagram for USB 2.0

In the diagram you can see several connectors that differ from each other according to a certain characteristic. For example, an active (power) device is designated by the letter A, and a passive (connected) device is designated by the letter B. Active devices include computers and hosts, while passive devices include printers, scanners, and other devices. It is also customary to separate connectors by gender: M (male) or “male” is the plug, and F (female) or “female” is the connector socket. There are formats by size: mini, micro and without marking. For example, if you see the designation “USB micro-VM”, this means that the plug is designed to connect to a passive device in micro format.

To pin out sockets and plugs, you will need knowledge about the purpose of the wires in a USB cable:

1. The red VBUS (“plus”) carries a constant voltage of 5 Volts relative to GND. The minimum electric current value for it is 500 mA;
2. the white wire is connected to the negative (D-);
3. the green wire is attached to the “plus” (D+);
4. The black color of the wire means that the voltage in it is 0 Volts, it carries a negative charge and is used for grounding.

In mini and micro formats, connectors contain five contacts each: red, black, white and green wires, as well as ID (which in connectors of type A is shorted to GND, and in connectors B is not used at all).

Sometimes you can find a bare Shield wire in the USB cable. This wire has no number.

If you use a table in your work, the connector in it is shown from the outside (working) side. The insulating parts of the connector are light gray, the metal parts are dark gray, and the cavities are marked white.

In order to carry out the correct USB wiring, you need to mirror the image of the front part of the connector.

Connectors for mini and micro USB formats consist of five contacts. Therefore, the fourth contact in type B connectors will not have to be used in operation. This contact in type A connectors is connected to GND, and the fifth is used for GND itself.

As a result of some simple manipulations, you can independently make pinouts for USB ports of different formats.

USB wiring version 3.0 is distinguished by the addition of four colored wires and additional grounding. Due to this, the USB 3.0 cable is noticeably thicker than its younger brother.

Scheme USB connections devices to each other and wiring of device plugs:

volt-index.ru

USB connector pinout: regular, mini, micro

In our age of computer technology, smartphones and gadgets, it is difficult to find a person who does not know what USB connectors are. Also, almost everyone understands words such as mini- and micro-USB connector. After all, we use such things almost every day, which is natural. Similar connectors are located on charger, and on all computer peripheral devices.

But what to do if the soldering has come off at the base, and there is no way to even understand what color and what contact was soldered to? This is where knowledge should be applied, and now let’s try to figure out which ones.

The wiring of such a plug, or, in other words, the pinout of a USB cable, inherently does not involve anything overly complicated. Once you understand the sequence and colors, anyone who can hold a soldering iron will be able to handle similar work.

But first you need to understand what a USB plug is.

Types of USB plugs

What is a USB connector?

At its core, it is a connector with many capabilities, ranging from USB power to transmitting complex information data. This cable replaced the previously used options for connecting to a computer (PS/2 ports, etc.). Today it is used for all devices connected to a personal computer, be it a mouse, flash drives, printer, camera or modem, joystick or keyboard - USB cables have become truly universal.

There are three types of such connectors:

• 1.1 - its purpose is already outdated peripheral devices with the ability to transmit information at only one and a half megabits per second. Of course, after a little modification by the manufacturer, the transmission speed rose to 12 Mbit/s, but it still couldn’t stand the competition with higher-speed options. Of course, when Apple already had a connector that supported 400 Mbit/s. Now there are also such types, but there are very few of them, since faster USB wires, mini USB, and in general, USB speed occupies a special place in human life. Everyone is in a hurry somewhere, in a hurry to live, there are people who practically do not sleep, and therefore the faster the information is downloaded, the more preferable the connector is, right?
• 2.0. At the end of the last century, the second generation of such connectors was released. Here the manufacturer has already tried - the transmission speed has increased to almost 500 Mbit/sec. And it was intended mainly for complicated gadgets, like a digital video camera.
• 3.0 - this is really high technology. The maximum data transfer rate of 5 Gbit/s provided this USB connector with demand, which practically reduced the first and second versions to zero. In the third series, the number of wires has been increased to nine versus four. However, the connector itself has not been modified, and therefore you can still use the types of the first and second series with it.

Pinout designations

When looking at the pinout diagram, you need to understand all the symbols that are present on it. Usually indicated:

USB pinout options

• Type of connector - it can be active (A) or passive (B). A connection between a printer, scanner, etc. is called passive. In general, a connector that only works to receive information. Through the active it is possible to receive and transmit data.
• The shape of the connector is “mother”, that is, a socket (F), and “male” is a plug (M).
• Connector sizes - regular, mini and micro.

For example, USB AM, that is, an active USB plug.

The wires should be arranged by color as follows (from left to right):

• The red wire is positive, constant voltage 5V. with a maximum current of 500 milliamps.
• White wire - data-
• Green wire - data+
• Black wire - this wire is common, ground, negative. There is no voltage on it.

But the mini and micro connector include 5 wires with this arrangement:

• The wires are red, white and green - arranged similarly to the first option.
• ID - this wire in connectors “B” is free. In “A” it must be connected to a black wire.

Wiring of contacts in the “mother” USB 3.0

Sometimes the connector may contain a separate wire without insulation - this is the so-called “ground”, which is soldered to the body.

According to the presented diagrams, the external side is visible here. In order to solder the plug yourself, you need to take a mirror image of the picture, and as it probably became clear, the microUSB pinout is no more complicated than that of conventional USB connectors.

By the way, if the damaged parts of the cable are intended to be used only for charging mobile phones, it will be more convenient to look at the colors of the wires and solder only black and red. This connector is quite enough for a phone; it will charge it. What to do with the rest of the wires? You don't need to do anything with them.

domelectrik.ru

USB connector wiring. Wiring diagram:

The USB connector wiring has been developed since 1994, and the development team consisted of engineers from leading companies in the field of IT technologies - Microsoft, Apple, Intel and others. During the research process, one goal was pursued - to find a universal port that could be used for most devices.

Thus, users were provided with a USB connector, which was almost immediately supported by various developers and began to be actively used in a variety of devices, from personal computers to mobile gadgets. However, it so happened that cables with such connectors could not be used everywhere, and they themselves were different, and therefore some require unsoldering a mini-USB connector in order to make the appropriate adapter.

However, few people know how this procedure should be carried out correctly.

Concepts you need to know

Wiring a USB connector begins with learning the basic concepts:

• VCC is the positive potential contact of the power supply. For modern USB cables, the indicator of this contact is +5 Volts, and it is worth noting that in radioelectric circuits this abbreviation fully corresponds to the supply voltage of PNP, as well as NPN transistors.
• GND – negative potential contact of the power supply. In modern equipment, including also various models motherboards, this device connected to the housing in order to provide effective protection from static electricity or any external sources of electromagnetic interference.
• D- - information contact having zero potential, regarding which information is broadcast.
• D+ is an information contact that has a logical unit. This contact is used to broadcast information from the host to the device or vice versa. On the physical level this process represents the transmission of rectangular pulses with a positive charge, while the pulses have different amplitudes and duty cycles.
• Male is the plug of this connector, which is often called “male” among modern users who wire the USB connector for a mouse and other devices.
• Female – the socket into which the plug is inserted. Users are called "mother".
• RX – information reception.
• TX – information transfer.

USB-OTG

OTG is a method of connecting two peripheral devices via a USB cable without the need for a computer. Also, such a pinout of a micro-USB connector is often called a USB host in professional circles. In other words, a flash drive or some other HDD thus can be directly connected to the tablet or mobile phone just like a full-fledged personal computer.

In addition, you can connect mice or keyboards to gadgets, if they support the ability to use them. Cameras and other gadgets are often connected to printers in this way.

What limitations does it have?

The limitations that this type of micro-USB connector has are the following:

For example, if we are talking about connecting some kind of USB flash drive to the phone, then in this case the “USB_AF-USB_AM_micro” adapter is most often used. In this case, a flash drive is inserted into the connector, while the plug is connected to the mobile phone.

Cable Feature

The main feature that distinguishes the wiring of a USB connector in the OTG format is that in the plug, pin 4 must be connected to pin 5. In a standard data cable, nothing is soldered to this pin at all, but this plug is called USB-BM micro. It is for this reason that you need to get to the fourth contact, and then use a jumper to connect it to the GND wire. After this procedure, the plug will be renamed USB-AM micro. It is the presence of a jumper between these contacts in the plug that allows the device to determine that some kind of peripheral device is about to be connected to it. If the device does not see this jumper, it will act as a passive device, and any flash drives connected to it will simply be completely ignored.

How are devices identified?

Many people believe that when connecting in OTG mode, both devices fully automatically determine which of them will be the host and which will be the slave. In fact, in this case, only the user determines who exactly in this case will be the master, since in which device the plug equipped with a jumper between 4 and 5 contacts will be inserted, then of them will be the host.

How to make it?

Through the translucent insulation you can see several multi-colored wires. You will need to melt the insulation near the black wire, then solder one end of the jumper to the GND pin. On the opposite side you can see a white wire, as well as an unused pin. In this case, we need to melt the insulation near the unused contact, and then solder the second end of the jumper to it.

It is worth noting that the wiring diagram for a micro USB connector is much simpler.

The unraveled plug, which you equipped with a jumper, will need to be insulated, for which a specialized heat-shrinkable tube is used. After this, you will just need to take the “mother” from the extension cord and solder it to our color-matched plug. If the cables are shielded, then you will also need to connect the shields, among other things.

Can it be charged?

If peripherals are connected to the device via OTG, then it will have to power it, which can significantly reduce the overall operating time of the device from the built-in battery. In this regard, many people wonder whether it is possible to recharge such a device through an external source. This is possible, but this requires support for a special mode in the device, as well as a separate wiring of the USB connector for charging.

In fact, the charging mode is most often provided by modern gadget developers, but not everyone allows such a procedure. It should be noted that to switch to this charging mode, a separate USB connector wiring diagram must be used, in which the contacts are closed through a separate resistor.

Micro usb pinout— micro-USB desoldering is considered the most common type of repair of this type of device these days. Surely you have already encountered such a situation when currently I need a USB adapter, but I didn’t have one at hand. Circumstances can be different - the device has broken down, has gone missing somewhere, is not on sale, its length is not enough, and so on. If you are familiar with the method of pinouting micro usb, then you can solve this problem with your own hands at home.

USB WIRE COLORS needed to perform USB CABLE repairs.

Conclusion	Name	Wire color	Description
1	VCC		+5V
2	D-		Data -
3	D+		Data +
4	GND		Earth

The heterogeneity of USB 2.0 connectors is shown in the figure below.

The name of one or another connector is indicated by letter designation indices.

Connector model:

A - active action, power source - personal computer, USB Host Controller
B - passive action, additional equipment - computer printer or scanner

Connector type:

M - male connector
F - socket

Connector dimensions:

no designation index
MINI
MICRO

USB MICRO-BM pin connector (M) is used for connection with a passive device (B); dimensions micro.

Micro USB pinout - sockets and pin connectors

The purpose of the wires in the USB connector is as follows:

1. Red wire— +5v positive voltage relative to ground. Current limit - 0.5A
2. White wire D-(-Data)
3. Green wire D+(+Data)
4. Black wire GND - common bus, ground, body - no voltage

Mini - micro connectors are provided with five contacts:

1. Of red color
2. White D-
3. Green D+
4. ID - not connected in connectors “B”; in connectors “A” is shorted to GND to ensure “OTG” operation
5. Black color GND ground

In addition to all of the above, a USB cable can have a core without insulation Shield - housing, braided shielding. This conductor is not assigned an identification number.

Correct perception of the connectors in the pictures:

All tables show the connector shown from its outer working side, and not from the solder pads. The components that act as insulating elements in the diagram are light gray, segments made of metal are indicated in dark gray, and voids in the connector are marked in white.

USB wiring method

Standard USB does not cause any difficulties; you just need to take the drawing of the front side of the connector, geometrically transformed into a mirror image, and you can solder.

The pinout of the MINI and MICRO USB pin connectors is shown in the image below:

Five-pin connectors MINI and MICRO. In connector version “B” the fourth contact pad is not used. In option “A” the fourth contact pad is short-circuited to the GND bus. And the GND contact itself has the digital designation No5.

In this article we will look at pinout options for USB connectors.

Pinout of 5-pin connector

Micro USB connector contains five contacts:

1 contact:+5 Volts charging power

2 contact: signal reception (D-)

3 contact: signal transmission (D+)

4 contact: not involved. Only when an OTG cable is connected, it closes to the case, which ensures the search and installation of a new device.

5 contact: general (minus)

Pinout of USB 3.0 standard A and B

The USB 2.0 standard discussed above provides a maximum signal transfer speed of up to 480 Megabits per second, and the USB 3.0 standard allows data transfer at speeds of up to 5 Gigabits per second. The speed of USB 3.0 is ten times faster than USB 2.0.

Four more contacts have also been added, which are designed to provide high speed, fast charging and other benefits with a current of up to 1 Ampere!

But to support older devices, the new USB 3.0 connector has the same four pins. A pair for receiving and transmitting data and a second one for power supply. See photo below.

Micro USB 3.0 pinout

USB 3.0 pinout on motherboard

Used to connect to the connector on the front panel of the computer.

Below is the informationfor qualified craftsmen!Before changing parameters, we recommend recording the current data for possible return to the initial state. In any case, the authors of the article are not responsible for the failure of the TV due to erroneous actions in the service menu.