In this video you will learn about various copper cable & termination standards.
RG-6 & RG-59 Coaxial
Coaxial cabling is the oldest type of network cabling; its data wires are surrounded by a wire mesh for insulation. Prior to the advent of fiber optics, the fastest internet service available to home and business customers was cable internet. Cable internet is a form of broadband internet access which uses the same RG-6 coaxial cable as a cable television, but adds a device called a cable modem to convert the signal for use by computers and home/business networks. RG-6 has a 75-ohm resistance, uses an 18-gauge center conductor, is available in quad-shielded versions, & can carry signals up to 1.5GHz, making it much better for HDTV signals.
RG-59 is used in older cable TV or satellite TV installations as well as in CCTV security installations; 75-ohm resistance. RG-59 uses a 22-gauge center conductor and a single outer shield. It is designed for signals up to 50MHz.
T568B (EIA-568B) and T568A (EIA-568A) Standards
The wiring standard for all types of Ethernet UTP cables is known as T568B (EIA-568B). This type of cable is also known as a straight-through cable which is most commonly used to connect a host to a client, such as the RJ-45 wire connected from a PC to a home router (dissimilar devices). The wire order, from left to right when looking at the top of the connector is:
The T568A (EIA-568A) standard swaps the positions of the orange and green wires used in T568B. This type of cable is also known as a crossover cable which are most commonly used to connect two hosts directly, such as a PC directly connecting to another PC, or a switch connecting to another switch (similar devices). The wire order, from left to right when looking at the top of the connector is:
You can create a crossover cable by building one end to the T568B standard and the other end to the T568A standard.