Detailed explanation of IDC cabling

There are still many things worth learning about data center wiring. Here we mainly introduce the layout of power cords and network cables, including some valuable experiences in data center wiring, I hope this will help you, especially Internet cafe managers.

In the construction of Computer Room wiring, the layout of power cords and network cables is very important. These two types of cables are well laid out in the IDC room wiring. The computer runs normally, the failure rate is low, and teachers are also able to attend classes, greatly improving the efficiency of classroom teaching. On the contrary, there are frequent failures!

Power cord Layout

During the communication, I found that the 220V AC power cord of the student machine in the cabling of many school data centers is deployed using several porous sockets to connect each other. This connection is very simple, but it has many drawbacks: each porous socket is connected to four computers, and 20 computers are connected to each other by concatenating five porous sockets. If the 20 computers are started at the same time, the instantaneous large shock current can easily burn the AC fuse of the first porous outlet. Some may say that the probability of 20 hosts starting at the same time is very small, but if the display of the 20 computers did not turn off the power switch after the last use, because it needs to be manually disabled ), then, when the total power supply is connected, only the impact current generated by the 20 monitors is enough to cause the same fault.

The correct power cord layout method is: Group points. Use the standard power protection wire to connect a 20A three-core national standard socket (an independent socket embedded in the wall) about 1.5 meters as a point, and then connect the above porous socket to this point. In the above example, adding five such three-core sockets can solve the problem. In addition, each group can be divided into 10 or 16 units as a group according to the actual situation. The whole computer classroom can be divided into 4 ~ Six groups. At present, some schools have to pay more attention to power cord construction than this, not only each porous outlet is pulled separately, and the display power supply is also grouped control.

Network Line Layout

The first thing to consider when deploying network lines is how to manage hubs and switches. I have seen that many machine rooms are wired to save network cables. For example, the first server is placed under the instructor's podium, the second server is placed under the Student's machine No. 15th, and so on. This is a bit like the serial connection type of the above power outlet. Although the network cable is saved, there are many defects: it is not easy to centrally manage and prone to faults. In addition, the more connections, the more network signal attenuation. Therefore, the current IDC cabling usually places hubs and switches in the primary machine or a dedicated cabinet next to the server), which greatly facilitates management and reduces the network failure rate.

Please note that each RJ-45 head at both ends of the network cable must be made in accordance with the standard, especially now very convenient to achieve M network environment of the machine room wiring. I found that many new computer classrooms, including the electronic reading room), because the RJ-45 head is not standard and affect the quality of communication. According to the 568B specification, the 8-Core Cables are white orange, orange, white green, blue, white blue, green, white Brown, and brown.

The above power cords and network cables should be deployed in the first step of wiring and installation of the entire computer room. It is the basis for ensuring the safe and stable operation of the IDC room wiring in the future, it must be paid enough attention that many units of IDC room wiring is only after the computer is installed ). According to the above optimization scheme, that is, the host power cord group is single, the display power cord group is single, and the switch is centrally managed with conditional purchase of stacked switch), according to the author's calculations, a Data Center with 60 student machines, with a power cord containing porous sockets, multiple groups of air switches on the wall) and a network line that does not contain switches, requires an investment of more than 10 thousand yuan, such investment will be highly efficient.

1. Solution and prevention of immersion in structured cabling systems
2. Fully supports application of cat6 Cabling Standards
3. General selection criteria of integrated wiring systems
4. Key Points of Integrated Wiring System Design
5. Detailed description of Structured Cabling System