Computer room wiring to crack common trouble wiring

Many companies devote all their time and energy to hardware, but cable problems often make all these efforts futile. Cabling systems are the cheapest part of the network, but people often overlook cables, although it is one of the most common causes of network failure. In fact, recent studies have shown that 70% of network failures are related to cabling systems.

The wiring system in the computer room because of links, so cabling system failure probability also becomes higher, the more common fault has jumper fault, plug fault, copper cable link fault and so on. So what are some of the ways we can solve these problems?

Below we discuss this issue from two aspects of cabling construction and later operation dimensions.

Cabling The construction of the troubleshooting

Wiring Construction process is the wiring system failure of the high stage, not standard construction and construction errors caused by fault is often impossible. In the computer room wiring construction, the fault is in the problem of twisted-pair wiring.

Twisted-pair cabling process is more prone to network "pass" and "impassability" line order problem. Many users in the wiring often appear one is to use one by one of the corresponding error connection method, when the connection distance is short, the system does not appear connection fault. However, when the connection distance is long, the network is busy or high-speed running, it is easy ..., its core is to let 3 and 62 pins for the same pair (according to T568A or T568B standard to link). In Ethernet, it is commonly used in two pairs of twisted pair lines, arranged in 1, 2, 3, 6 of the position, if the use of not two pairs of lines, but the original pair used by the line separate use, will form a string of crosstalk (Splitpair error refers to when the line is not in line with the correct installation, caused by transmission performance failure), Has a great impact on network performance. 10M network environment is not obvious, 100M network environment if the flow of large or long distance, the network will not connect. This fault is more common, but also easier to detect in the process of engineering audit, just to RJ45 head back to the line after doing, you can return to normal.

If there are no test tools, there may be some errors in connection work. Common connection errors are cable label error, connection open circuit and short circuit and so on. Open circuit and short circuit in the construction, because of tools, wiring skills or the lack of threading technology in the wall, will produce open circuit or short-circuit fault. Reverse the same pair at both ends of the needle position, such as one end is 1-2, the other end is 2-1. The wrong pair connects a pair of lines to another pair of lines on the other end, such as 1-2 on one end and 4-5 on the other.

There is also a fault case is a string, the so-called "string" refers to the original two pairs of lines apart and then again to form a new line pair. Due to the failure of the End-to-end connectivity is not affected, so the common multimeter can not check the cause of the failure, only through the use of dedicatedThe cable tester can be checked out. The

Cable is also frequently faulted during its layout, such as optical cable too long caused by the signal attenuation problem, bending transition caused by excessive optical cable bending loss and compression loss, optical cable compression or fracture, optical cable welding bad, joint pollution, joints, poor polishing, joint contact and so on.    

The cabling system failure in the operation and maintenance of the computer room to make the wiring system fully play its advantages and not become the problem of IT management, reasonable and effective management means is essential. In the specific work of network administrators will often encounter the following problems:

1, network failure, how to quickly find the point of failure of the physical location and related to the entire link?

2, how to provide network (including telephone, etc.) connection support to the network system that has been built and put into use, in the face of the need to add, replace or change the station, and make the changed document management?

3, how to effectively avoid the maintenance of personnel changes to the maintenance work caused by the difficulties and losses?

With the popularization of structured cabling engineering, IT system flexibility is increasing, while users change the frequency of network connection or hop is also improving, and the quality of cabling system is an important factor affecting the overall situation of network failure, according to the investigation 60-70% Network failure is due to the ambiguous line management and lead to the whole network unreliable or paralyzed, network management personnel can no longer be based on the project completion diagram or network topology map to carry out maintenance work, they need a clear network maintenance work interface, can be integrated wiring of the physical layer of real-time management.

In the face of this situation, with the development of intelligent cabling management technology, such as intelligent wiring racks (electronic wiring racks), push-pull type RJ-45 connectors, such as new wiring technology, new products are gradually recognized by users.

Where, for example, the high density cabling solution for the main service data center of the amp Cabling MRJ21 & Sigma link Copper cabling system and MPO high-density cable wiring system as well as supporting high-density rack (cabinet); Simon Mapit of the United States G2 (Mapit), an upgraded version of the Intelligent Cabling Management (IIM) solution, the next-generation comprehensive solution designed to meet the needs of emerging 10GB Ethernet, the Systimax gigaspeed x10d, and so on, Both for the intelligent wiring system and wiring management provides a very good solution.

In general, through the help of intelligent cabling products, operators can better solve a series of operational and maintenance problems such as troubleshooting, fault early warning, fault repair and so on.