Structured wiring is a general wiring system that appeared 20 years ago to meet the needs of modern business buildings for communication, fax, and data networks.
In addition, structured cabling needs to comply with a flexible and changeable business environment, and can be flexibly configured after installation, so it is favored by users.
1. Support the frequent movement of the office environment
2. Support the increase of future personnel
3. Support future applications
4. Reduce operating costs
Since the birth of the structured wiring concept, command signals, control signals and communication signals have been transmitted together through a common structured wiring system. Now, a structured wiring system in the building can support the transmission of signals such as voice, data, image, security, and building automation.
With the promulgation of the latest wiring standards of TIA / EIA and ISO, the standard increasingly reflects its importance. All manufacturers and installers must comply with the requirements of the standard. The standard defines in detail the system components, installation methods, performance, and methods of system testing and certification.
The application requirements of the modern business environment have promoted the rapid development of data networks, in order to meet the requirements of the reliability and high performance of network systems in the business environment. Network devices such as information modules are designed to support the transmission of high-speed and large-capacity data networks more than previous products. These information modules play a very important role in network data transmission. The characteristics and design of the module are very important for network performance.
The promulgation of new industry standards of TIA / EIA and ISO has driven the market to use higher-performance structured wiring systems to support high-speed data transmission, and the data modules in the structured wiring system have become an important transmission element. The module provides the connection between the horizontal subsystem and the jumper. Although it is the shortest connection unit in the link, it makes a huge contribution, such as transmission loss. Therefore, it is very important to improve the characteristics and structure of the module.
One role of the data module is to provide a reliable connection between the wiring system and the jumpers. The impedance of the module must match the impedance of the cable to minimize signal reflection. In addition, within the 20-year (or longer) warranty period, the electrical characteristics of the module cannot be problematic.
There are two module production technologies on the market to ensure the frequency characteristics of the module: PCB (printed circuit board technology) and LFT (lead frame technology).
Printed circuit board solutions are the earliest and most versatile method of compensating frequencies for connecting hardware. Based on the known twisted pair transmission characteristics, these printed circuit boards are designed with special paths. Impedance matching is done through special paths on the printed circuit board. The data module using PCB technology will have some problems in use, because the solder joints on the circuit board will loosen and oxidize after a long time of use, resulting in changes in electrical characteristics and reduced performance.
On the other hand, the lead frame technology is a structure that uses metal stamping and controls the bending of the wire. The shape close to the curvature of the lead can reduce the influence of unwanted characteristics.
The use of LFT means that there are no solder joints in IDC and RJ45 sockets, and no linkage components like resistance and capacitance. Therefore, there is no error problem of PCB and other components in the module, which is a more advanced connection method, and it will not affect the performance of the system due to changes in electrical performance due to time problems.
in conclusion
We have shown you the importance of structured cabling solutions for the business environment and discussed future trends in network speed and bandwidth.
We cannot ignore factors such as the reliability of the connection and the warranty period. Compared with the use of obsolete PCB technology at the same cost, lead frame technology provides a more advanced solution. When someone has been arguing that the average failure time of PCB-type modules can be measured, more professional engineers certainly know that the average failure time of the network is the sum of the average minister time of each individual component. A large network may contain 2,000 to 20,000 modules, and the error rate of the entire system will be higher
If there is a problem with a module, the network engineer needs to find the wrong module in a haystack. Bring huge losses to the entire network.
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