Urgent computer network cabling summary !!!!!!

A summary of the computer network cabling will be sent to you.

The required materials are as follows:

should be used for each layer.

Information module: 7x12x2 For safety reasons, there should be several more crystal heads: 7x12x2x4x (1+15%), use 5 types of wire.

Cable: (

Information modules: 7x12x2 There should be more for security reasons.

Crystal head: 7x12x2x4x (1+15%)

Cable: Category 5 (

Cables can be used with Category 5 or Category 5 unshielded twisted pairs;

Each box of twisted pair is 305 meters.

Information points on each floor.

The number of BAI is 12*2=24.

The amount of wire used on the du floor of each floor is.

zhi[(70+10) 2+2]*24=1008 meters The additional 2 meters are the loss of the reserved version of the DAO wiring at both ends.

The amount of line used in the whole building is the right: 1008*7 305 gets more than 23 boxes, so 24 boxes are purchased. The model can use Category 5e network cable, which meets the needs of future technology development.

The main distribution frame represents the passenger station, the floor distribution frame represents the bus station, and the information point represents the destination. Passenger representative packets.

If there are fewer destinations, the bus station loses its meaning of existence and can take passengers directly from the passenger station to their destination. (Teacher's program).

If there are too many destinations beyond the limits of the management of the passenger station, then it is better to divide the destination into several districts and set up a bus station. Logically, the general distribution frame is only responsible for the floor distribution frame, and the floor distribution frame is responsible for each information point.

Therefore, the number of information points is the key to the problem. If there are so many information points in the total floor area limit, and the expansion will not exceed the management limit of the main distribution frame, there is no need to put distribution racks on each floor.

The premise of the above is that it is assumed that all information points in the building are connected to the Internet. There is also a situation where the user requires the internal and external networks to be separated, then each floor should have a distribution frame, otherwise the internal network is difficult to manage.

According to the commercial wiring specification, regardless of cost, all floors should have a wiring room with a patch panel. It is also possible to share two floors in one wiring room, depending on the situation. But in practical application, in order to save costs, some things can be saved.

If you say 5 floors can be sure that the purpose is just to go to the Internet, and it will never change. I agree with the teacher that only one main patch panel is used.

There is only one purpose of integrated wiring: it is to cope with various changes in the network structure that may occur in the future.

There are many places above where the words and metaphors are not very rigorous, I hope you can understand it.

It would be better to have a patch panel on each floor. 1. Convenient management. It will not let a large number of cables go to the computer room, it will be very messy, and it is difficult to manage 2. Avoid some problems of long cables.

The general use is that there are patch panels on each floor and then enter the switchboard room. In this way, there will not be too many cables in the computer room. And beautiful, easy to manage.

Estimation formula: the amount of lines used in the whole building = [(distance from the farthest point + distance from the nearest point) termination redundancy] number of information points in a single layer Number of layers = [(60+10), 18 boxes of network cables are required for 305 meters of boxes.

The required materials are as follows:

should be used for each layer.

Information module: 7x12x2

There should be a few more for security reasons.

Crystal head. 7x12x2x4x(1+15%）

Use Category 5 lines.

Cable: (