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USB Connectors Tutorial

What is USB?
Universal Serial Bus is a high speed connectivity large amounts of data or video to be transferred type C connector, which is only backwards com-
standard enabling simple plug and play up to 10 times faster than USB 2.0. However, USB patible through the use of an 3.0 adapter or cable
connections to devices such as printers, digital 2.0 is still much more common in the market- that also uses a type C connector. USB 3.1 cables
cameras, camcorders, keyboards and mice. The place and is expected to remain relevant for utilize a type C connector on each end.
standard is supported by many leading suppliers applications that do not require large amounts of Applications
of computers and peripherals. An attractive data to be moved. It is important to note that in
advantage of USB is that the devices are hot plug- order to take advantage of the increased Initially USB products were used mainly to link
gable meaning a live connection/disconnection bandwidth USB 3.0 provides all components must computers and their associated peripherals.
without data loss or interruption. Currently there be 3.0 compliant - host, cables and peripherals. Today USB is used in nearly every market
are three relevant revisions of USB, 2.0, 3.0, and Otherwise the bandwidth will perform to the including communications, entertainment,
3.1. USB 3.0 is an emerging standard that allows lowest rated component. USB 3.1 utilizes the medical and automotive.
USB Connectors
The USB specification requires a host system to be
equipped with an A type jack. The B / mini B type jack
is typically found on peripheral devices requiring
detachable cables. Therefore, detachable USB cables
are configured as an A to B / mini B male combination 2.0 Type A Jack 2.0 Type B Jack 3.0 Type A Jack 3.0 Type B Jack 3.1 Micro Type C Jack
which prevents improper bus configurations and
topology miswiring. USB 3.1 cables work differently.
Both sides utilize the type C connector, the cable will
work regardless of which way it is plugged in.
For a complete listing of USB Connectors, see the
Connector Chart on the inside back cover of this 2.0 Mini Type B Jack 2.0 Mini Type B Jack 2.0 Micro Type B Jack 3.0 Micro Type B Jack
catalog or online at L-com.com/ConnectorChart (4 position) (5 position)

Braid Foil Drain wire

(2) Power conductors,
USB 2.0 Cable range from 20 to 28 AWG
Construction
(1) Twisted pair, 28 AWG data lines

Braid Foil Drain wire
(2) Power conductors, range from
20 to 28 AWG
USB 3.0 Cable (1) Unshielded Twisted pair, data lines, range
Construction from 28 to 34 AWG
(2) Shielded Twisted Pairs, data lines, range
from 26 to 34 AWG
USB 3.0 adds two shielded data pairs to the USB 2.0 cable specifications. This addition allows for the faster performance in downloading
data or video. Similar concept to changing a 2 lane highway to a 6 lane highway - much more traffic can pass through.

Braid Foil Drain wire 1 1 (8) 30 AWG mini coax
1 3 2 data lines
1
USB 3.1 Cable 2 (1) 26 AWG power
conductor
Construction 3 4 3
1 1 3 (4) 32 AWG configuration/
grounding conductors
1 1 4 (1) 34 AWG shielded
USB 3.1 cable utilizes 8 mini coax lines and 1 shielded twisted pair for data transfer. One large power 1 twisted pair, data lines
conductor along with smaller ground and configurators complete this more sophisticated, high speed
cable. Please note that this is an emerging technology and this specification is subject to change.

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