Usb Connectors types and their wire connections

General Discussion
1

Usb Connectors types & Their names. Usb wires. Usb cable types and their port names:

  • Usb-A: Oldest computer cable’s male and female, rectangular in shape.

  • Versions: USB 1.1, USB 2.0, USB 3.0 (blue color), USB 3.1, USB 3.2.

  • USB Type-A 3.1/3.2: Similar to USB-A but with additional pins for faster data transfer. High-speed devices and modern computers. Often blue to distinguish from USB 2.0.

  • Usb-B: the other end of usb cable which used to be inserted into printer’s back side. Square shaped with beveled corners. V2.0, 3.0 (blue)

  • USB Type-B 3.1/3.2: A larger, square-shaped connector with extra pins for USB 3.1/3.2 speeds.

  • Mini-Usb: That which was nokia’s charging connector (male side). A smaller, trapezoidal connector. Ver 2.0.

  • Micro Usb: A compact, flat connector. Used for mobile charging even till now, just before c type. Ver 2.0, USB 3.0 (wider connector with extra pins).

  • Pins 1 (rightmost pin when the port is looking towards me with its taper side down/towards earth and pins looking upwards) to 5 (5th is outer patti): Pin1: Vcc/VBus: 5v+, Pin2: Data-, Pin3: Data+, Pin4: ID (identifies the device as a host or guest). Pin5/patti: Ground.

  • USB 3.0 Micro-B: A wider version of Micro-USB with extra pins for USB 3.0 speeds. Used with (even mine) External hard drives and high-speed devices. Versions: USB 3.0.

  • Pins: first 5 pins are same as Micro Usb2.0. 6th Pin: sstx- (superspeed transmit negative). Pin7: SSTX+ (super speed transmit positive). Pin8: Ground for shileding & noise reduction. Pin9: Super Speed Receive Negative. Pin10: Super Speed Positive.

  • Usb-C: A small, oval-shaped, reversible connector. Now widely prevalent, even charges my own mobile. USB 3.1, USB 3.2, USB4, Thunderbolt 3/4. Supports faster data transfer, higher power delivery, and alternate modes (e.g., DisplayPort, HDMI).

  • Lightning (Apple Proprietary): A small, reversible connector developed by Apple. Not a USB standard but often used with USB-A or USB-C cables (on the other end).

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Converting a Usb Micro To Usb Type C or vice versa:

#Usb connections #usb-wire-connections
#usb-types-converters #usb-type-a-to-type-c-conversion

When Usb A male connector is facing towards me and its copper pins are towards UP side (I’m able to se them clearly), then right most (mostly red) is +5v and left most is -5v (mostly black) and 2nd from right (mostly white) is data- and 2nd from left (mostly green) is data+ (i.e. power plus neighbors data minus and vice versa).

And if we see the female side also in the same way (i.e. its copper pins are towards up and me), then same connections will happen to there. Left most is power- and right most will be 5v+.

Very good video:

Now the 4 points of Usb (2.0) Type A will connect to Type C connector this way:
Data+ = A6 of C type
Data- = A7 of C type
G (Ground is a bit big to solder on, on the neck of pcb) = 5v -
V (Volt is on other edge/neck corner of the type c pcb) = 5v +

Further, any usb type c device/pcb can act as a host (which provides current) or a Client/sub-device (which would need/suck current).
A host c device (like a mobile charger) would’ve its A5 point taking current from (would be short with) A4 (that is +v). And same way on reverse side, B5 would’ve Pulled up its voltage upped by (short to) B4 (V+).

While a Client/sub device’s voltage will be pulled down thru a resistor (of 5 Kilo Ohm) by shorting A5 (and B5 on the other side) to corner/neck Ground pin.

In both host and clients, the point to be shorted is same. But while in the host same point is shorted (thru 5 K Ohm resistor) to V+ and in client it is shorted with V-/ground.