What is the difference between broadband coaxial cable and baseband coaxial cable and thick and thin

Variables are not the same as meridians.

The difference between coaxial cable and non-coaxial cable 1. Constituent materialDifferent coaxial cable: The constituent material is a copper wire conductor isolated by insulating material. Non-coaxial cable:

The constituent material is several wires or groups of wires. 2. Classification of different coaxial cables: divided into baseband coaxial cables and broadband coaxial cables.

Non-coaxial cable: divided into DC cable and AC cable. 3. Different types of coaxial cables:

It is divided into thin cable RG-58 and thick cable RG-11. Non-coaxial cable: It is divided into flame-retardant rubber cable, nuclear-grade cable, bare wire and bare conductor products, power cable, communication cable and optical fiber, magnet wire (winding wire), and flexible fireproof cable.

Commonly used coaxial cables.

There are two categories: 50 and 75 coaxial cable chain rollers.

75 coaxial cable is often used in CATV network, so it is called Beizhaofan CATV cable, the transmission bandwidth can reach 1GHz imitation hail, and the transmission bandwidth of the commonly used CATV cable is 750MHz

50 coaxial cables are mainly used for baseband.

Signal transmission, transmission bandwidth of 1 2omhz, bus type Ethernet.

That is, use 50 coaxial cable.

1. The volume is large, and the diameter of the thin cable is 3 8 inches thick, which takes up a lot of space for the cable pipeline;

2. It cannot withstand entanglement, pressure and serious bending, which will damage the cable structure and prevent the transmission of signals;

3. The cost is high, and all these shortcomings can be overcome by twisted pairs, so in the current Qing cautious LAN environment, it has basically been replaced by the Ethernet physical layer specification based on twisted pairs.

1. The constituent materials are different

The constituent material of the coaxial cable is a copper wire conductor isolated by an insulating material.

Ordinary cables are made of several wires or groups of wires.

2. Different classifications:

Coaxial cables are divided into baseband coaxial cables and broadband coaxial cables.

Ordinary cables are divided into DC cables and AC cables.

3. Different types:

Coaxial cables are divided into thin cable RG-58 and thick cable RG-11.

Ordinary cables are divided into flame-retardant rubber sheathed cables, nuclear-grade cables, bare wires and bare conductor products, power cables, communication cables and optical fibers, magnet wires (winding wires), and flexible fireproof cables.

The type of medium, the type of transmission, the speed, and the distance are not the same.

The network cable, simply put, is eight thin wires winding, with a plastic sleeve outside, and the transmission distance is about 100m.

Coaxial cable, generally used for monitoring, a very thick copper wire in the middle, the copper wire is wrapped around the clinker tube, and the clinker tube is wrapped with wire mesh, the wire mesh is used to shield the signal, and the wire mesh is black sheath.

Optical fiber, in fact, we generally talk about optical cables, optical fibers are one of the very thin glass quartz filaments, probably the same as hair, and then there are layers of protective sheaths, and then many optical fibers form a fiber optic cable, and then together with steel wires plus sheath to form a complete optical cable.

To put it simply, optical cables are thicker than coaxial cables, and coaxial cables are thicker than network cables, some of which are about the same.

The optical cable is the hardest because of its thickness and steel wire, followed by the coaxial cable, and the network cable is the softest, which can be wound at will.

Transmission efficiency, fiber is the highest, and the speed is the fastest.

To clarify, if it is only an optical fiber, it is the thinnest, but the optical fiber cannot be too bent, and it will break.

Twisted pair is only used on machines over short distances, and it has interference. Coaxial is better than twisted pair! No interference, high fiber cost! It is not easy to protect, it can not be too small and easy to break.