The technological process does not stand still. Modern models of various digital devices are strikingly different from their older counterparts. Not only their appearance and internal equipment have changed, but also the methods of connecting to computers and chargers. If only 5-7 years ago many phones and even cameras did not have this capability. But at the moment, absolutely every digital device can be connected to a personal computer or laptop. Phone, player, smartphone, tablet, video camera, player or camera - they are all equipped with connectors that allow you to connect them to other devices.
But, as is easy to see, there is discord. And for some reason the cord purchased with the phone cannot be used with your favorite player. As a result, a bunch of cables accumulate, you constantly get confused in them and cannot understand why it was impossible to make one wire suitable for connecting all devices. But, as we know, this does not happen. Although now there is a more or less standard connector, at least for smartphones, phones and tablets. And its name is micro-USB. What kind of miracle this is and how it works, we will tell you below.
Micro USB connector: what is it?
The two most popular connectors lately are mini and micro-USB. Their names speak for themselves. These are smaller, more practical designs that are used on smaller digital devices to save space and perhaps create a sleeker appearance. For example, for a tablet it is almost 4 times less than standard USB 2.0, and considering that the device itself is several times smaller than a personal computer or even a laptop, this option is simply ideal. But there are also some nuances here. For example, more can never be made into less, so micro-USB connectors cannot even be replaced with mini-USB. Although in some cases the reverse process is acceptable. And the replacement is unlikely to end in anything good. This is such a piece of jewelry work. In addition, the word “micro” covers several types of connectors, and you need to remember this. Especially if you are trying to buy a new wire. Your tablet's micro USB may not be compatible with the connector on the end of the cable you purchased.
Varieties
Micro-USB connectors can be of two completely different types. They have different areas of application and, accordingly, they look different. The first type is called micro-USB 2.0. type B - it is used in devices by default and is an unspoken standard for the latest models of smartphones and tablets, because of this it is very common and almost every person at home has at least one micro-USB 2.0 cable. type B.
The second type is micro-USB 3.0 - these connectors are not installed on tablets, but can be found on smartphones and phones of some brands. Most often they are used to equip external hard drives.
Advantages
The main advantages of micro-USB connectors for tablets include increased density and reliability of the plug. But this fact does not exclude the possibility of problems with these components. Most often, the cause of breakdown is the carelessness of the owners of digital devices themselves. Sudden movements, tablets and phones falling onto the floor or even asphalt, especially on the side where the connector itself is located, attempts to correct something with your own hands without the appropriate knowledge - these are the main reasons why even the most durable parts of USB ports fail out of service. But it happens that this happens due to wear and tear of the device, improper operation or manufacturing defects.
Most often, the cause of malfunction is either the micro-USB connectors themselves, or the parts adjacent to them and connected to them in a circuit. For any experienced craftsman, replacing it is a matter of minutes, but not everyone can cope with this at home. If you are still interested in how you can fix it yourself (or, in other words, desoldering) - the process is not the longest or most difficult if you approach it wisely and first read the relevant information. Some tips will be given below.
Micro USB connector: pinout
As you know, with ordinary ports and connectors everything is simple - you just need to take an image of the front part of their connector, but in a mirror image, and solder it. With micro-species everything is a little different. Their connectors contain 5 contacts, but on connectors of type B, contact number 4 is not used, and on type A it is closed to GND, which occupies the fifth place.
Functions of the “legs” of the micro-USB connector
Since most modern tablets have micro-USB, which serves not only for charging, but also for synchronization, problems with it arise more often due to the more frequent use of the connector.
So, as mentioned above, a regular micro-USB connector has five “legs”. One is positive, at five volts, and one is negative. They are located on different sides of the connector and, accordingly, suffer less when separated from the motherboard. Only one “leg” of the connector, which more often than others is pulled out of the contact pad, is subject to more wear. It is located closer to the minus “leg”. If this contact is damaged, the device cannot be charged. That is, the system can see the power supply, but the charging process will not occur.
The remaining two “legs” are responsible for synchronization, that is, for the ability to upload and download photos, music, etc. They do this at the same time, so the separation of one will entail the cessation of the work of the second.
Knowing the functions of the “legs”, you will be able to determine which contacts are causing you to have problems and which of them you will need to solder to get your tablet back into operation.
Consequences of incorrect connector replacement
Having soldered micro-USB incorrectly, owners most often encounter the following problems:
- Short circuits of the power supply if they soldered the inverted type.
- The tablet detects the charging cord, but the battery (battery) does not charge.
- The tablet's battery charges perfectly, but it does not sync with a laptop or computer.
- The tablet works fine, but sometimes it “reminds” you that you should take it to a workshop instead of soldering it yourself (for example, charging does not start immediately after turning it on, or sometimes the cord needs to be pulled out and reinserted several times before charging starts) .
The Future of Micro USB
Since these are some of the most popular ports today, if you learn how to change them once, it will help you out very often in the future. And let them not be accepted as the “gold standard” in the development of phones and other digital devices. And we still have to have a whole collection of cables specifically for an Acer laptop, for a Samsung phone, for an Apple iPad, but the active use of micro-connectors gives us hope that soon, instead of a “bouquet”, we will have one micro-cable on our shelf. USB, suitable for at least 90% of the equipment in the house.
USB cable pinout refers to the description of the internals of the Universal Serial Bus. This device is used to transfer data and charge batteries of any electronic devices: mobile phones, players, laptops, tablet computers, tape recorders and other gadgets.
Carrying out high-quality pinouts requires knowledge and ability to read diagrams, orientation in the types and types of connections, you need to know the classification of wires, their colors and purpose. Long-term and uninterrupted operation of the cable is ensured by the correct connection of the wires of the 2 connectors USB And mini-USB.
Types of USB connectors, main differences and features
The Universal Serial Bus comes in 3 versions - USB 1.1, USB 2.0 and USB 3.0. The first two specifications are completely compatible with each other; bus 3.0 is partially compatible.
USB 1.1 is the first version of the device used for data transfer. The specification is used only for compatibility, since there are 2 operating modes for data transfer ( Low-speed and Full-speed) have a low speed of information exchange. Low-speed mode with a data transfer rate of 10-1500 Kbps is used for joysticks, mice, and keyboards. Full-speed is used in audio and video devices.
A third operating mode has been added to USB 2.0 - High-speed for connecting information storage devices and video devices of a higher organization. The connector is marked with HI-SPEED on the logo. The information exchange speed in this mode is 480 Mbit/s, which is equal to the copying speed of 48 MB/s.
In practice, due to the design and implementation features of the protocol, the throughput of the second version turned out to be less than declared and amounts to 30-35 MB/s. The 1.1 and 2nd generation Universal Bus specification cables and connectors are identical in configuration.
The third generation universal bus supports a speed of 5 Gbps, equal to a copy speed of 500 MB/s. It is available in blue, which makes it easier to determine whether the plugs and sockets belong to the advanced model. Bus 3.0 current increased from 500 mA to 900 mA. This feature allows you not to use separate power supplies for peripheral devices, but to use the 3.0 bus to power them.
Compatibility of specifications 2.0 and 3.0 is partially achieved.
Classification and pinout
When describing and designating tables of USB connectors, it is accepted by default that the view is shown from the outside, working side. If the view is from the installation side, this is specified in the description. In the diagram, the insulating elements of the connector are marked in light gray, the metal parts are marked in dark gray, and the cavities are marked in white.
Despite the fact that the serial bus is called universal, it is represented by 2 types. They perform different functions and provide compatibility with devices with improved characteristics.
Type A includes active, power supply devices ( computer, host), to type B – passive, connected equipment ( printer, scanner). All sockets and plugs of the second generation and version 3.0 type A buses are designed to work together. The Gen3 Type B jack connector is larger than what is needed for the 2.0 Type B plug, so a device with a Gen 2.0 Type B connector is connected using only a USB 2.0 cable. Connection of external equipment with modification 3.0 type B connectors is carried out using cables of both types.
Classic Type B connectors are not suitable for connecting small electronic equipment. Connecting tablets, digital equipment, and mobile phones is done using miniature Mini-USB connectors and their improved Micro-USB modification. These connectors have reduced plug and socket sizes.
The latest modification of USB connectors is type C. This design has identical connectors at both ends of the cable and is characterized by faster data transfer and greater power.
Pinout of USB 2.0 connector types A and B
Classic connectors contain 4 types of contacts; mini and micro formats contain 5 contacts. Wire colors in USB 2.0 cable:
- +5V ( red VBUS), voltage 5 V, maximum current 0.5 A, intended for power supply;
- D-( white) Data-;
- D+ ( green) Data+;
- GND ( black), voltage 0 V, used for grounding.
For mini format: mini-USB and micro-USB:
- Red VBUS (+), voltage 5 V, current 0.5 A.
- White (-), D-.
- Green (+), D+.
- ID – for type A it is closed to GND to support the OTG function, but for type B it is not used.
- Black GND, voltage 0V, used for grounding.
Most cables have a Shield wire; it has no insulation and is used as a shield. It is not marked and is not assigned a number. The universal bus has 2 types of connectors. They are designated M ( male) and F ( female). Connector M ( dad) is called a plug, it is inserted, connector F ( Mother) is called a socket, they insert it into it.
USB 3.0 pinout types A and B
Bus version 3.0 has a 10 or 9 wire connection. 9 pins are used if Shield wire is missing. The contacts are arranged in such a way that devices of earlier modifications can be connected.
USB 3.0 wiring:
- A – plug;
- B – socket;
- 1, 2, 3, 4 – contacts that match the pinout of the contacts in specification 2.0, have the same color scheme;
- 5, 6 contacts for data transmission via the SUPER_SPEED protocol are designated SS_TX- and SS_TX+, respectively;
- 7 – grounding GND;
- 8, 9 – contact pads of wires for receiving data via the SUPER_SPEED protocol, contact designation: SS_RX- and SS_RX+.
Micro-USB connector pinout
The Micro-USB cable has 5-pin connectors. A separate mounting wire in insulation of the desired color is supplied to them. To ensure that the plug fits accurately and tightly into the socket, the upper shielding part has a special chamfer. The micro USB pins are numbered 1 to 5 and read from right to left.
The pinouts of micro- and mini-USB connectors are identical; they are presented in the table:
The shielding wire is not soldered to any contact.
Mini-USB pinout
Mini-A and Mini-B connectors appeared on the market in 2000, using the USB 2.0 standard. Today they are little used due to the emergence of more advanced modifications. They have been replaced by microconnectors and Type C USB models. The mini connectors use 4 shielded wires and an ID function. 2 wires are used for power: supply +5 V and ground GND. 2 wires for receiving and sending differential data signals, designated D+ and D-pin. Data+ and Data- signals are transmitted via . D+ and D- always work together, they are not separate simplex compounds.
USB connectors use 2 types of cables:
- shielded, 28 AWG twisted, 28 AWG or 20 AWG untwisted;
- unshielded, 28 AWG untwisted, 28 AWG or 20 AWG untwisted.
The cable length depends on the power:
- 28 – 0.81 m;
- 26 – 1.31 m;
- 24 – 2.08 m;
- 22 – 3.33 m;
- 20 – 5 m.
Many manufacturers of digital equipment develop and equip their products with connectors of a different configuration. This may cause difficulty charging your mobile phone or other devices.
Mobile device users had a hard time in the 2000s - they were forced to put up with the so-called proprietary. The phones of each manufacturer were equipped with unique charging connectors - as a result, the charger, for example, for Nokia did not work with a Motorola phone. It even got to the point of absurdity - when for two phones from the same manufacturer (Finnish) we had to look for different chargers. The dissatisfaction of users was so strong that the European Parliament was forced to intervene.
Now the situation is completely different: almost all smartphone manufacturers equip their gadgets with ports for chargers same type. The user no longer has to buy a new charger “in addition” to the phone.
USB cables can be used not only to transfer data from a PC to a gadget, but also to charge a mobile device. Smartphones are capable of replenishing battery “reserves” both from an outlet and from a computer, but in the second case, charging will take significantly longer. A traditional USB cable for an Android or Windows Phone smartphone looks like this:
There is a standard plug at one of its ends USB 2.0 Type-A:
This plug plugs into the USB port on your computer or laptop.
At the other end of the wire there is a plug microUSB.
It is, accordingly, inserted into the micro-USB connector on the mobile device.
Micro-USB 2.0 is now a unified connector: it can be found on smartphones and tablets from almost all mobile device manufacturers (with the exception of Apple). An agreement on interface standardization was signed in 2011 by representatives of 13 leading companies in the mobile market.
The choice fell on Micro-USB for a number of reasons:
- The connector is compact. Its physical dimensions are only 2x7 millimeters - this is about 4 times smaller than USB 2.0 Type-A.
- The plug is durable– especially when compared with the Nokia thin charger.
- The connector is capable of providing high data transfer rates. Theoretically, the transfer speed via Micro-USB when using the 2.0 standard can reach 480 Mbit/s. The actual speed is much lower (10-12 Mbit/s in Full Speed), but this rarely causes inconvenience to users.
- The connector supports the OTG function. We'll tell you more about the benefits this provides later.
Micro-USB could impose competition in the fight for the role of a standard connector Mini-USB. The mini plug looks like this:
This type of USB connector was not suitable as a standard one, and here's why:
- The connector is larger in size– albeit not by much. Its size is 3x7 millimeters.
- The connector is quite fragile– due to the lack of rigid fastenings, it becomes loose very quickly. As a result, transmitting data via cable becomes a real pain for the user.
In the 2000s, a mini-USB connector could be found on smartphones from “second-class” manufacturers - say, Philips And Alcatel. Nowadays you won’t find mobile gadgets with a mini-jack on the market.
In addition to the USB connectors we mentioned (Micro-USB, Mini-USB, USB Type-A), there are others. For example, micro-USB standard 3.0 can be used to connect hard drives to a PC, and USB Type-B(square shape) – for musical instruments (in particular, MIDI keyboards). These connectors are not directly related to mobile technology (except for Galaxy Note 3 c USB 3.0), so we won’t talk about them in more detail.
What types of USB cables are there for smartphones?
Thanks to the inexhaustible imagination of Chinese handicrafts, mobile technology users can buy cables of completely different configurations. For example, in the era of proprietaryism, the following “monster” was incredibly popular:
Yes, this charger fits all the main connectors!
Similar “multi-tools” are still on sale, but they have fewer plugs. Here is a 4-in-1 charger, which can be ordered for less than 200 rubles:
This charger is equipped with all modern plugs - Lightning, 30Pin (both for iPhone), microUSB, USB 3.0. Definitely a “must-have” for the user!
There are other interesting options. Here is the cable from OATSBASF For those who hate cables:
This cable allows you to charge two mobile devices from your computer. simultaneously(for example, the 5th iPhone and Android) and has a very tempting price - just over 100 rubles.
In domestic stores and showrooms, the user, of course, will not find such an abundance of different cables as on the pages of catalogs GearBest And AliExpress. In addition, data equipment at retail costs significantly more. For these two reasons, users are recommended to order USB cables from China.
What is the OTG standard?
Surely many have seen such a cable and wondered what it is for:
This is a cable OTG; at one end there is a plug micro-USB, on the second – connector USB 2.0, "Mother". Using such a cable, you can connect a USB flash drive to a smartphone or tablet, but only if the mobile device itself supports the standard OTG.
OTG(short for On-The-Go) is a function designed to quickly connect 2 USB devices to each other, without the mediation of a computer. Connect by OTG You can use not only a flash drive (although this, of course, is the most common case), but also, for example, a computer mouse, keyboard, external hard drive, gaming steering wheel, joystick. You can even connect your smartphone to a printer or MFP to print out a photo taken with the gadget’s camera.
Cables OTG for the iPhone have also already appeared, however, you can only download photos and videos to an Apple device (without jailbreak) from an external storage device - and then only when the root folders on the flash drive and the photos themselves have the “correct” names.
A complete list of smartphones that support the function OTG, no - simply because almost all modern gadgets can boast of having this standard, and the list would be huge. However, a buyer who intends to connect a mouse or flash drive to the device should inquire from a store consultant about support OTG before giving away money - “just in case.”
USB Type-C: what are the advantages?
Transition from micro-USB This is a new trend in the mobile electronics market! Manufacturers are actively mastering the technology and equipping their flagship models with improved connectors for charging and data transfer. USB Type-C waited a long time “in the shadows”: the connector was created back in 2013, but only in 2016 did market leaders pay attention to it.
Looks like USB Type-C So:
What are the advantages? Type-C in front of everyone familiar micro-USB?
- High data transfer speed. Bandwidth Type-C equals 10 Gb/sec (!). But that's just bandwidth.: in reality, only owners of smartphones with the standard can count on such speed USB 3.1- For example, Nexus 6P And 5X. If the gadget uses the standard USB 3.0, the speed will be around 5 Gb/sec; at USB 2.0 Data transfer will be significantly slower.
- Fast charging. The duration of the smartphone charging procedure depends on the potential amount of watts supplied by the connector. USB standard 2.0 capable of serving everything 2.5 W– that’s why charging lasts for hours. Connector USB Type-C provides 100 W– that is, 40 times (!) more. It is curious that current transmission can occur in both directions - both to the host and from it.
- Connector symmetry. If the connector micro-USB there is up and down, then the connector Type-C symmetrical Which side you insert it into the connector does not matter. From this point of view, technology USB Type-C similar to Lightning from Apple.
Dignity Type-C The size of the connector is also small - only 8.4 × 2.6 millimeters. According to this technology criterion micro-USB And USB Type-C similar.
U USB Type-C There are also disadvantages, one of which is more than significant. Due to the unregulated operation of the connector, charging can easily “fry” the mobile device. This probability is not purely theoretical - fires have occurred in practice. It is for this reason that the proliferation of non-original, “makeshift” cables and chargers USB Type-C – so that users can see the benefits for themselves Type-C and decide to abandon the standard connector. At the same time, Ravencraft admits that, perhaps, complete replacement USB-A will never happen.
Micro USB connector pinout— the technological process does not stand still. Modern models of various digital devices are strikingly different from their older counterparts. Not only their appearance and internal equipment have changed, but also the methods of connecting to computers and chargers. If only 5-7 years ago many phones and even cameras did not have this capability. But at the moment, absolutely every digital device can be connected to a personal computer or laptop. Phone, player, smartphone, tablet, video camera, player or camera - they are all equipped with connectors that allow you to connect them to other devices.
Micro USB connectors. Types of USB connectors, their features
But, as you can easily see, the connector is different. And for some reason the cord purchased with the phone cannot be used with your favorite player. As a result, a bunch of cables accumulate, you constantly get confused in them and cannot understand why it was impossible to make one wire suitable for connecting all devices. But, as we know, this does not happen. Although now there is a more or less standard connector, at least for smartphones, phones and tablets. And its name is micro-USB. What is this miracle and how does it work, how is it done micro usb connector pinout, we will tell you below.
Micro USB connector: what is it?
The two most popular connectors lately are mini and micro-USB. Their names speak for themselves. These are smaller, more practical designs that are used on smaller digital devices to save space and perhaps create a sleeker appearance. For example, a micro-USB connector for a tablet is almost 4 times smaller than a standard USB 2.0, and considering that the device itself is several times smaller than a personal computer or even a laptop, this option is simply ideal. But there are also some nuances here.
For example, more can never be made into less, so micro-USB connectors cannot even be replaced with mini-USB. Although in some cases the reverse process is acceptable. And replacing a micro-USB with your own hands is unlikely to end in anything good. This is such a fine job, and besides, you need to know exactly how it’s done. micro usb connector pinout. In addition, the word “micro” covers several types of connectors, and you need to remember this. Especially if you are trying to buy a new wire. Your tablet's micro USB may not be compatible with the connector on the end of the cable you purchased.
Varieties
Micro-USB connectors can be of two completely different types. They have different areas of application and, accordingly, they look different. The first type is called micro-USB 2.0. type B - it is used in devices by default and is an unspoken standard for the latest models of smartphones and tablets, because of this it is very common and almost every person at home has at least one micro-USB 2.0 cable. type B.
The second type is micro-USB 3.0 - these connectors are not installed on tablets, but can be found on smartphones and phones of some brands. Most often they are used to equip external hard drives.
Advantages
The main advantages of micro-USB connectors for tablets include increased density and reliability of the plug. But this fact does not exclude the possibility of problems with these particular components, especially with inept attempts to make repairs and pinout the micro USB connector. Most often, the cause of breakdown is the carelessness of the owners of digital devices themselves. Sudden movements, tablets and phones falling onto the floor or even asphalt, especially on the side where the connector itself is located, attempts to correct something with your own hands without the appropriate knowledge - these are the main reasons why even the most durable parts of USB ports fail out of service. But it happens that this happens due to wear and tear of the device, improper operation or manufacturing defects.
Most often, the cause of malfunction is either the micro-USB connectors themselves, or the parts adjacent to them and connected to them in a circuit. For any experienced craftsman, replacing it is a matter of minutes, but not everyone can do it at home. If you are still interested in how you can repair the micro-USB connector yourself and how it is done micro usb connector pinout(or, in other words, desoldering). Then you need to understand that this process, although not the longest and most difficult, if you approach it wisely and preliminary reading of the relevant information. Some tips will be given below.
Micro USB connector: micro usb connector pinout
As you know, with ordinary ports and connectors everything is simple - you just need to take an image of the front part of their connector, but in a mirror image, and solder it. With USB mini- and micro-types everything is a little different. Their connectors contain 5 contacts, but on connectors of type B, contact number 4 is not used, and on type A it is closed to GND, which occupies the fifth place.
Functions of the “legs” of the micro-USB connector
Since most modern tablets have micro-USB, which serves not only for charging, but also for synchronization, problems with it arise more often due to the more frequent use of the connector.
So, as mentioned above, a regular micro-USB connector has five “legs”. One is positive, at five volts, and one is negative. They are located on different sides of the connector and, accordingly, suffer less when separated from the motherboard. Only one “leg” of the connector, which more often than others is pulled out of the contact pad, is subject to more wear. It is located closer to the minus “leg”. If this contact is damaged, the device cannot be charged. That is, the system can see the power supply, but the charging process will not occur.
The remaining two “legs” are responsible for synchronization, that is, for the ability to upload and download photos, music, etc. They do this at the same time, so the separation of one will entail the cessation of the work of the second.
Knowing the functions of the “legs”, you will be able to determine which contacts are causing you to have problems and which of them you will need to solder to get your tablet back into operation.
Incorrect pinout of the micro USB connector or incorrect replacement of it - consequences
Having soldered micro-USB incorrectly, owners most often encounter the following problems:
1.
Short circuits of the power supply if they soldered the inverted type.
2.
The tablet detects the charging cord, but the battery (battery) does not charge.
3.
The tablet's battery charges perfectly, but it does not sync with a laptop or computer.
4.
The tablet works fine, but sometimes it “reminds” you that you should take it to a workshop instead of soldering it yourself (for example, charging does not start immediately after turning it on, or sometimes the cord needs to be pulled out and reinserted several times before charging starts).
The Future of Micro USB
Since these are some of the most popular ports today, if you learn how to change them once and learn how to do it micro usb connector pinout, this skill will help you out very often in the future. And let them not be accepted as the “gold standard” in the development of phones and other digital devices. And we still have to have a whole collection of wires specifically for an Acer laptop, for a Samsung phone, for an Apple iPad and a Nikon camera, but the active use of micro-connectors gives us hope that soon instead of a “bouquet” we will have one on our shelf micro-USB cable suitable for at least 90% of the equipment in the house.
What types of USB connectors and plugs are there?
Mini USB on the left, Micro USB on the right.
Mini USB is much thicker, which makes it impossible to use
it in compact thin devices.
Micro USB is easy to recognize by its two notches,
holding the plug firmly when connecting.
Three brothers of the same family.
Mini USB and Micro USB are much thinner than usual.
On the other hand, the “crumbs” lose
in the reliability of an older comrade.
The USB connector has been in use since 1997. Then it was installed in computer motherboards. Now it has received widespread implementation: it is used in smartphones and players, printers and a bunch of other devices. More and more advanced versions of USB are coming out. The article will tell you how they differ from each other, as well as the features of their pinout.
Types of USB connectors
Before moving on to the story of USB pinouts by color, you should first understand the types of such an interface. Firstly, they differ in size. Nowadays the standard one is in use, for example, for a computer, and the micro one is used in mobile phones and peripheral devices. Mini is also available, but this type of connector is already becoming obsolete.
USB is also divided into 2 types:
- A - connects to the “mother” socket on the computer or;
- B - connects to the male socket on the peripheral device.
Now let's talk about the types and their differences.
1. v1 - a modified version of version 1.0, the use of which was decided to be discontinued due to numerous errors in the data transfer protocol. It had a low throughput compared to modern representatives.
Main parameters:
- Two modes that differ in the speed with which information is transmitted: 12 and 1.5 Mb/s.
- A cord with a maximum length of three meters is for slow information exchange, and 5 meters for fast information exchange.
- The bus voltage is 5V (nominal), which made it possible to use plugs for charging smartphones, and the permissible load of devices connected to the connector is 0.5 A.
USB pinout by color
Pinouts are indicated by certain colors - these are generally accepted standards that simplify repair tasks. And in general, the color scheme makes it easier to understand which cable is responsible for what.
The first and second versions of the USB interface have identical designations and locations. Generation III has differences related to design and speed features. Read more in the following sections.
USB 2.0 wiring
The table below schematically explains what the color pinout of ports of this generation looks like.
It is worth noting that types A and B have the same circuits. The only difference is that in A the arrangement is linear, while B differs in the arrangement above and below, as in the table:
USB 3.0
In the 3rd branch (this cable belongs to this type) there are 9, sometimes 10 connectors. It all depends on the presence or absence of shielding braid. Naturally, the number of contacts has also increased, but they are placed in a checkerboard pattern. This is necessary for compatibility with older versions.
|
USB 3.0 pinout by color |
|||
|---|---|---|---|
| Conclusion | Name | Wire color | Description |
| 1 | VCC | Red | +5V |
| 2 | D- | White | Data - |
| 3 | D+ | Green | Data + |
| 4 | GND | Black | Earth |
| 5 | SS TX | Blue | data exchange connectors using the Super Speed protocol |
| 6 | SS TX+ | Yellow | |
| 7 | Ground or GND | - | additional grounding for signal wires |
| 8 | SS RX- | Violet | |
| 9 | SS RX+ | Orange | for USB3 data reception (StdA_SSRX) |
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