Application of Network Cabling System in Internet cafes

With the development of cabling systems, network cabling systems have become more and more widely used, and Internet cafes are also one of them. As the operator of Internet cafes, designing a network cabling system is very important for the quality of the network.

The services currently provided by Internet cafes, such as web browsing, online games, online movies, distance education, and other basic services, are all related to the Internet, the quality of the network directly determines the viability of Internet cafes. Therefore, how to plan a high-quality network environment is a key point that Internet cafe operators must consider. Internet cafe Integrated Wiring accounts for a large proportion of the factors, mainly including: power cabling and network cabling systems.

Wiring of Power Systems

Wiring of Internet cafe Power Systems

I. Wiring Design

Currently, three-phase four-wire power supply mode is widely used in municipal power supply systems. We recommend that Internet cafes that are still using two-phase power supply be replaced by three-phase four-wire power supply mode. For Internet cafes, the main power systems of Internet cafes include:

1. Air Conditioners: for Internet cafes, air conditioners have become a standard configuration. Generally, cabinet air conditioners are used, and the power consumption is very high. The power of each server is generally. Therefore, when designing a power supply cabling system, a dedicated power supply line must be provided for the air conditioner.
2. COMPUTER: Generally, in the design of the Internet cafe Power System Wiring, it is easy to produce a misunderstanding that the power cord used by the computer can be pulled one by one. In fact, the Internet cafes have the largest total load on computers. Without speakers, the total power is generally around W. As the number of machines increases, the total power increases significantly. Therefore, the power cord used by Internet cafe computers should not be connected in series one by one, but be connected by group points. The specific practices are as follows:

Every 1.5 meters or so, access a 10A three-core national standard socket, that is, an independent socket embedded in the wall) as a point, and then access the above porous socket, within the range of 1.5 meters, there will be 4-5 computers using this socket to connect to the power supply; then, the computer can be divided into 10 or 16 computers according to the actual situation, each group is controlled by an air switch, internet cafes can be divided into 4-6 groups or more groups.

Select the model of the power cord Based on the load of each trunk. In general, the main line uses copper core lines, the following branch lines can use aluminum core lines I suggest, it is best to all the lines of the Internet cafe Power System Using GB copper core lines ). At the same time, select different types of power cords based on the load of the power supply.

3. network equipment and lighting equipment: for Internet cafes with professional cabinets, it is recommended to add UPS backup power to vrouters and other high-value network equipment to protect the security of network equipment.

II. Specific Construction

1. The power wiring should be synchronized with the room decoration. In order to make the Internet cafe beautiful, the power cord should not be placed in the bright area and can be placed in the PVC pipe or dedicated power cord channel.

2. For more important trunk lines, it is best to deploy one more line during cabling for backup lines. At the same time, in order to avoid affecting the transmission quality of Network cables and telephone lines, it is best to use a separate pipe or PVC trough for the power cord. For some pipelines that are not easy to perform secondary construction, you must deploy a backup line.

3. When selecting the specifications of the Power Trunk and branch lines, we recommend that you increase the value by 50-80% based on the current load power to meet the power supply requirements for machine upgrading in Internet cafes in the future.

4. Make some marks when installing the power cord. A detailed record is required for each line controlled by the air switch.

Iii. Acceptance

After all power cabling work is completed, a series of acceptance and inspection must be performed before all cabling pipelines are closed. The power supply system detection is mainly divided into the following aspects:

1. Test whether all the equipment works properly: After the internet cafe power cabling is finished, test whether all the lines work normally and whether the air switch works properly.

2. Full load operation of Internet cafes: after the first step of the test is run, the devices in the Internet cafes are opened in batches, and the full load power of Internet cafes is gradually achieved. It is best to run the whole load for more than 24 hours, so as to test the real performance of the Power wiring system. During full load operation, if the air switch is automatically tripped or the fuse is burned out, check the cause carefully.

3. overload operation in Internet cafes: after full load operation, you can perform overload operation for a short period of time to check the quality and compression performance of the power supply system. The overload operation can take about 10 hours and be tested based on the actual situation.

4. Notes

In the whole process of Internet cafe power cabling, we must pay great attention to some small problems, and some minor mistakes may cause incalculable losses.

1. Installation of the ground wire: Careful technicians will find that the core responsible for grounding in the three-phase power plug of the computer does not have a power cord, that is, the lack of effective grounding measures. However, computers and some network equipment in Internet cafes may generate some static electricity in normal operation of both Chinese and foreign shells. Without effective grounding measures, static electricity may accumulate to a certain extent, it may burn out hardware or hurt people. Therefore, the ground wire must be installed when wiring the internet cafe power supply.

2. Lightning Protection Measures: In the eyes of many technical personnel, lightning protection seems unrelated to Internet cafes. However, if the Internet cafes do not have good lightning protection measures, all devices in the internet cafe may be burned out.

3. Backup line: for the main line of the Internet cafe power system or some lines that are inconvenient for maintenance, you must set up a backup line. If the main line is damaged, immediately change it to a backup line. Especially for Internet cafes in business, deploying backup lines is a major measure to improve the competitiveness of Internet cafes.

4. High-quality wiring room: For more than Internet cafes, it is best to prepare an independent space for installing air switches, UPS and other Internet cafe power equipment when designing a power supply system.

5. When using a three-phase four-wire Power Supply System for Internet cafes and designing a power supply system, ensure that the load of the three firewires should not be too different, and the difference value should be about w.

For cabling of Internet cafes, it is best to find professional electricians or professional Integrated Wiring personnel, and record cabling records, the scope and direction of each power cord must be recorded in the document to facilitate future maintenance.

Power System Wiring

Internet cafe network cabling system

Compared with the Power System Wiring of Internet cafes, the integrated network wiring of Internet cafes is more complex. It takes into account not only the network wiring system, but also the installation location of network equipment and the selection of network communication media.

I. Network Cabling System Design

The network cabling system must be designed according to the network structure of Internet cafes. Currently, Internet cafes generally use the network mode of routers, primary switches, switches, and clients. Before designing a network cabling system, you must understand the following basic knowledge:

First, the longest communication distance between twisted pair wires: currently, cat5e twisted pair wires are used most in Internet cafes. In theory, the maximum communication distance between a point and a point is 100, but only 95 meters. Therefore, it is recommended that you measure the actual distance between a point and a point when designing a network cabling system for Internet cafes.

2. Maximum number of vswitches: for Internet cafes with large areas, the number of machines is large and the locations are scattered. vswitches usually require cascade, the maximum number of cascade operations cannot exceed five. That is to say, twisted pair wires can extend the transmission distance by means of cascade of switches, but theoretically the maximum length cannot exceed five hundred.

Ii. cabling construction and precautions

1. Correct Connection of twisted pair wires: according to the network cabling system standards, twisted pair wires have 568A and 568B standard connections. Currently, the most widely used method is 568B. Currently, network devices are smart devices and support the 568A and 568B connection standards. Therefore, we recommend that you use the 568B connection standards. In the 568B wiring standard, the standard line sequence is as follows: Orange, orange, green white, blue, blue white, green, brown white, and brown, from the left to the right is Line 1 to line 8; The 568B wiring standard is that both ends of the crystal head use the standard line sequence.

2. Select the quality clearance crystal head: when selecting the crystal head, you can select the mid-range brand, but remember not to choose low-grade inferior goods. Poor quality crystal head after a long period of use, the metal card network cable inside is easy to contact poor, resulting in poor network transmission quality.

3. Placement of vswitches: whether it is a primary switch or a secondary switch, you must place the vswitch in the middle of the node when selecting the installation location. On the one hand, you can save network cable usage, in addition, the network transmission distance can be minimized to improve the network transmission quality.

4. Reasonably deploy twisted pair wires: When wiring, you can place the twisted pair wires in a PVC pipe or professional cable trough. Do not use strong magnetic fields, large function electrical air conditioners, or power cables when the twisted pair wires pass through, otherwise, the network transmission quality will be greatly reduced.

5. Try to deploy backup lines as far as possible: twisted pair wires have a certain service life. In addition, due to the influence of objective and natural conditions, it is normal for twisted pair wires to be damaged. Therefore, during network cabling, at least one or two backup lines must be deployed for the cascade line between the primary switch and the secondary switch. The twisted pair wires between switches and workstation can be deployed based on the actual situation of Internet cafes.

6. Compile the line number: When wiring the network, make a number for each twisted pair, and make the same numbers at both ends of the twisted pair. To facilitate future maintenance, it is recommended that the twisted pair be numbered at a certain distance, especially for the twisted pair with a long distance.

TIPS: When wiring the network, it is best to reserve a 2-3-meter length at both ends of the twisted pair wire. When the crystal head fails, this line also has the value of reuse.

Iii. Detection

1. network cable test: After the network cable is deployed and the crystal head is installed on both ends, use the network tester to test whether the line works properly. If not, it can be determined that the crystal head is not connected to the network cable, which requires redo the crystal head and test until the network cable can work normally.

2. network device test: After the network device is installed, power-on the device for testing. First, test whether all network devices, including network cables, are working properly. Then, test the network transmission speed between the test point and the point. Finally, test the network transmission speed of one-to-multiple points.

3. Comprehensive Test: test the interconnection performance of external and internal networks, including the following: download speed test, smoothness of online games, and smoothness of online cinemas. If any problem is found during the test, find out the cause and eliminate it.

The services currently provided by Internet cafes, such as web browsing, online games, online movies, distance education, and other basic services, are all related to the Internet, the quality of the network directly determines the viability of Internet cafes. Therefore, how to plan a high-quality network environment is a key point that Internet cafe operators must consider. Internet cafe Integrated Wiring accounts for a large proportion of the factors, mainly including: power Supply and network wiring.

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