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RJ-11 Broadband/Telephone Plug
The
US style RJ-11 plug is a 4 pin version of the RJ-45 pictured below. It is the
smallest in size and is used in the UK for DSL/Broadband Internet connections
(RJ-11 to RJ-11).
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British (Telecom) Plug
The
familiar British telephone plug used in over 30 countries around the world.
Any analogue device that operates over a telephone line will be connected
using this plug. You'll often find an RJ-11 plug on one end, and a BT plug on
the other (RJ-11 to BT).
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USB Type A (Computer)
Universal
Serial Bus (USB) is the most popular way of connecting peripherals to your
computer. To connect most devices, you'll require a type A to B cable (often
supplied with the product).
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USB Type B (Peripherals)
The
other end of the USB wire features a square shape plug designed to connect to
peripherals such as your USB DSL modem or router.
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RJ-45 Ethernet Network (Crimped Plug)
The
RJ-45 connector, featuring 8 pins, is the big brother of the RJ-11. It's used
for data communications, specifically Local Area Networks (LANs). Cables can
be either straight (for normal use between a hub and a computer) or crossed
(for use between two hubs or switches). Each computer requires a Network
Interface Card (NIC) to connect to the network.
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RJ-45 Ethernet Network (Moulded Plug)
The
moulded RJ-45 plug shown to the left performs exactly the same purpose as the
crimped version above. Professionally constructed cables are usually moulded
by a machine instead of crimped using a special device called a
"crimping tool".
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