Enterprise LAN monitoring system cabling cable selection method

LAN monitoring system installation and use, in the LAN is very common, common LAN monitoring system includes transmission lines, hubs, network management centers and other equipment, the basis of the information network is the integrated wiring system, on a security monitoring system performance of the good, played a great impact
.

We know that the wiring design of the surveillance system involves video surveillance lines, broadcast intercom lines, alarm lines, sound monitoring lines, and network lines
.
There are many media used to transmit image signals, mainly coaxial cable, twisted pair and optical fiber, these three transmission media are different, each has its own advantages and disadvantages
.

Fiber optics
.
The advantages of optical fiber transmission are: long transmission distance, high rate, large bandwidth, small attenuation, the best anti-interference performance, suitable for long-distance and large-scale video transmission, such as road intersection monitoring
.
The farthest can even reach tens of hundreds of kilometers, it is transmitted in optical fibers by converting video and control signals into optical signals
.
Its equipment using optical fiber transmission is mainly video optical transceiver and optical fiber transceiver, video optical transceiver is mainly used in analog camera signal transmission, it has small signal loss, small noise and distortion, high transmission quality, suitable for long-distance transmission
.
The optical fiber transceiver is suitable for the signal transmission of network cameras, and it also has the advantages
of long transmission distance, small loss and strong anti-interference ability of video optical transceiver.
With fiber switches, PoE technology can also be used to power front-end cameras, reducing the amount of
cabling tasks.
Therefore, optical fiber is the best way
to solve long-distance transmission.

Twisted pair.

Compared with the coaxial cable twisted pair transmission distance is much farther, the maximum can reach 2400 meters, its price is cheap and easy to access, anti-interference ability is also good, the use of PoE power supply can also reduce the amount of
integrated wiring tasks.
However, the twisted pair material has weak anti-aging ability, and can only transmit one image
at a time.
Therefore, it is more suitable for video surveillance of network cameras in short and medium distances, relatively scattered camera points, or relatively close but concentrated environments, such as banks, chain hotels, supermarkets or university
campuses.

Coaxial cable
.
Coaxial cable is the most traditional video transmission method, its anti-interference ability is not strong, only suitable for transmitting video
with a distance of several hundred meters.
However, the relative cost is relatively low, so it is suitable for analog camera monitoring
in small factories or schools.

In terms of cabling, wired network transmission is the same
as analog camera cabling.
In terms of selecting data cables, network surveillance cameras choose ordinary network cable transmission
.
In the world of the Internet, there are actually many types of "network cables", and surveillance cameras use twisted pair and coaxial cables
.

The wiring choice of the monitoring system needs to be decided according to our monitoring environment and monitoring requirements, and when wiring, it is necessary to consider many parties and choose the optimal solution, which can reduce the cost input and play a good monitoring effect
.