How to fix your Lumea battery charging issue for less than $1/£1/€1

By Liam Author

Updated - November 25, 2021

How to fix your Lumea battery charging issue for less than $1/£1/€1


There are three major types of network cables used in communication systems
In communication systems, fiber optic cable, twisted pair cable, and coaxial cable are the three main types of network cables. They serve different purposes.

Fiber Optic Cable

The fiber optic cable consists of a bundle of glass threads, each of which is capable of transmitting modulated light signals.
Fiber Optic cable has a complex design and structure. The cable has an outer casing that surrounds the light and traps it within a central core. A fiber optic cable's core may be configured in two different ways - single-mode or multi-mode; although the difference may appear small, it has a big effect on the performance and use of fiber optic cables.

Twisted Pair Cable

In the home and many businesses, twisted pair cable is used to connect computers to the telephone company. It is constructed by twisting two separate insulated wires together and running them parallel to each other, which helps reduce crosstalk or electromagnetic induction between wire pairs. Twisted pair cables are suitable for transferring balanced differential signals. Signal transmission can be traced back to the early days of telegraphs and radios.  In wide bandwidth and high fidelity systems, balanced signal transmission presents the advantage of improved signal-to-noise ratio, crosstalk, and ground bounce.

Twisted pair cables can be classified into two types, depending on whether they have a shielding layer - shielded twisted pair (STP) cables and unshielded twisted pair (UTP) cables. Token Ring networks can use STP cables, while Ethernet networks can use UTP cables. Cat5e, cat6a, and cat7 cables are the most common UTP cable types used in Ethernet networks.llowing image shows the different structures of UTP and STP cables.

Coaxial Cable

Similarly, coaxial cable, or coax cable, consists of an inner conductor enclosed by foam insulation, cyclically covered in a woven braided shield of metal, then covered by a plastic jacket (see picture below). Unlike other types of transmission lines, coaxial cable runs can be installed next to metal objects, such as gutters, without losing power. Compared to twisted pair cable, coaxial cable is a high-frequency transmission cable with a single solid copper core. The transmission capacity is 80 times greater. Feedlines are commonly used to connect radio transmitters and receivers with antennas, to connect computers to networks, and to distribute cable television signals.

Conclusion

The type of cable you choose depends primarily on your needs and network topology. Cost and bandwidth requirements can be balanced to make a choice. Whatever type of cable you choose, suiting your network requirements is the best choice.



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