First, the introduction
Today, most of the voice, data and image transmission in office buildings, buildings, university campuses, government departments and even residential communities in intelligent buildings are based on structured cabling systems on their physical structure. We know that in the Iso/osi protocol, the physical layer is the basis of the network system, all network communications rely on the physical layer of the cable to the voice, data to the destination.
With the popularization of structured wiring and the continuous improvement of cabling flexibility, users change the frequency of network connection or jump is also improving, and cabling system is the main reason for the impact of network failure, in the survey 60~70% network fault is due to the lack of jumper, resulting in the entire 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. Then, how can we achieve the real-time management of network wiring through effective methods, so that network administrators have a clear working interface? This requires cabling management. Physical layer wiring management can real-time (24 hours a day, 365 days a year) to monitor the wiring of the connection state and the physical location of the device, at the same time any changes, can accurately update the wiring document data. The advantage of this is to provide a reliable, secure connection, prevent any unplanned, unauthorized changes, reduce the entire network system accident time, operation and maintenance costs, and ultimately effectively manage the entire network resources, improve wiring management efficiency. ---http://bianceng.cn (computer science)
Second, the current design of the configuration of wiring and management methods
At present, the structural wiring design generally uses the international standard structural wiring system, the voice, the data wiring unifies in a set of wiring system. The system design is generally designed according to six subsystems:
1. Working area subsystem: The connecting cable (about 3m) which is connected to the information outlet by terminal equipment.
2. Horizontal wiring SUBSYSTEM: Each floor of weak well as floor equipment between the equipment to the work area information sockets using 6 types of 4 pairs of 8-core UTP twisted-pair, wiring cable length of not more than 90 meters.
3. Vertical trunk SUBSYSTEM: The vertical main line that transmits data uses 6 core multimode fiber, and uses 6 type 4 pair of 8 core UTP twisted pair as backup; the vertical trunk of the transmission voice uses 5 kinds of unshielded large logarithm copper cable. The vertical main line is laid along the weak shaft bridge frame.
4. Equipment subsystem: All floors weak intercropping equipment, set access layer network switches, wiring racks and other connected devices.
5. Management Subsystem: Computer network Center, telephone switchboard room, is the whole building network, telephone handover center.
6. Architectural complex SUBSYSTEM: to extend the cables in the building to communications equipment and network equipment in other buildings in the building group.
This design idea concise, construction simple, construction cost reduction, fully adapt to the development of communication and computer network, for the future office automation lay a solid line foundation.
But with the development of technology, people do not only meet the convenience of wiring, construction and so on, the maintenance, management also put forward the request. Introduction, now the company, the office staff changes quickly, if or to the equipment between the jumper, is very troublesome, so according to the different needs of users can be changed and adjusted at any time, this will be very strict requirements of management personnel. The manager should know clearly the correspondence between the point of the work area and the wiring frame, and can jump the connection in time. According to the tia/eia-606 Standard, "commercial building telecommunications infrastructure Management standards" provisions: Transmission room, equipment, media terminals, twisted-pair, fiber, grounding wire, etc. have a clear number of standards and methods. Usually the construction staff to ensure that the cable ends of the correct end of the cable will be labeled on the line. The user can identify the cable in the wiring frame and the panel socket through the unique encoding of each cable.
At present, because users are using wiring system every day, and the user is usually responsible for the maintenance of wiring system, so the general identification using simple letters and numbers to identify. Now, although many manufacturers pre-printed the words "telephone", "Computer", "Fax" and so on in the production of panel sockets, most owners recommend that you do not use these icons on panel sockets. Because, first of all, these identification information is incomplete, can not achieve the purpose of management, and secondly, cabling infrastructure will no longer be universal, may change at any time. After a period of time, the equipment between the jumper mess, label shedding phenomenon is very serious.
Thirdly, the necessity of designing Computer Management system
Integrated wiring Real-time Intelligent management system is the use of computer technology to achieve integrated wiring of real-time automation and intelligent management. In the computer market, there are a variety of network management applications to help network administrators to monitor network connectivity, however, it is noteworthy that most of these applications are working on the network layer, not the physical connection layer, it can only tell the network administrator which logical link is broken, which device can not be connected, However, you cannot tell the administrator the location of the physical error and the cause of the problem, whether the cable is broken or the plug is off. The traditional switch port to the wiring rack port connection is completed by jumper. Once the jumper has been changed, it must be recorded by manual change of the drawing for future enquiries. The port of the wiring frame only represents the client port, this causes one problem is that the management is difficult, the jumper in the future changes will be difficult to query the connected port; Another problem is that the switch's ports are often plugged in because of changes that can easily result in damage to expensive switch devices. It is necessary for a unified real-time physical layer management system to be accurate, reliable, secure, and provide end-to-end real-time monitoring and corresponding documentation. Integrated wiring Intelligent Real-time management can save time, minimize business interruption, efficient use of active equipment, can accurately improve the record of documents, can be repaired in the failure to reduce the interruption time, to the planned MAC (move mobile, add, change changes) can quickly respond.
With the popularization of network technology, more and more enterprises and administrative units use the network system, changed the traditional office mode, greatly improve the work efficiency. At the same time, in the unit also has a department-computer department. The responsibility of the computer department in the traditional enterprise has shifted from word processing and computer maintenance into a new era of network maintenance. In the network maintenance, in addition to the server system, network equipment State monitoring, there is also an important task: according to other department personnel changes, provide network (including telephone and so on) connection support, and the change of document management.
With the rapid pulse of the times, personnel changes, and even the department changes are more and more frequent, how to let the network changes keep pace with this increasingly accelerated, but also maintain the correctness of the document? The problem gradually emerged. The traditional model of the principal means of human management has made it difficult to undertake this task. The changes in the computer department, for example, have led to a widespread ignorance of the network by new staff. If the whole enterprise is compared to a machine, then the network system will be the weakest. Even the most experienced network technicians are helpless in the face of a chaotic network. Server equipment, network communications equipment, the rapid development of today, the physical layer of the network management has no new breakthroughs? The answer is yes.
Four, the construction wiring Computer Management system composition
The traditional network connection has several parts: switch port to wiring rack port connection, wiring rack port to client port connection, client port to terminal equipment (computer, telephone, etc.). Typically, the network connection to the client port of the wiring rack port has been completed in the initial installation and is difficult to change in the future. Therefore, the switch port to the wiring rack port jumper is the focus of our computer room management.
Real-time intelligent management of structured wiring consists of two parts: hardware and software.
Hardware parts of the system:
• Electronic wiring Racks: Five types of performance, six types of performance and fiber-optic wiring racks, with a built-in sensor above each distribution frame port, is part of a 24-bit real-time interface, in real-time cabling, the port sensor and interface cable connectors are used to provide "real-time" network connectivity information.
• Primary scanner, secondary scanner: for real-time management of existing RJ45 based devices.
• Real-time jumper: real-time jumper design a nineth conductor, the length of which is the same length as the jumper, each end of which has a monitoring pin, and the real time jumper is connected to the real-time wiring rack port sensor and the scanner and provides the electronic contact point.
• Real-time link cable: There is a flat cable connector on the back of each electronic distribution frame, which is used to connect to the scanner.
Another can be equipped with a security controller: To enable the entire system to connect the remote device, such as door locks, door switches, fans and so on. Security controller has the safety mechanism of password entry system, which makes the whole real-time wiring system become more secure from the actual place to the control platform.
The software part of the system: the software of the structured wiring real-time intelligent management system is a set of typical Client/service system, which is composed of the server-side and workstation-side as the standard system. Its server side is a database system based on Microsoft SQL SERVER7.0, which standardizes the data management. The client is a system that is generally developed by itself and undertakes the interactive management responsibilities between the database system and the administrator.
Software system requirements for the computer. Server-side minimum requirements are: PENTIUM II 400mhz,128m RAM, 2G free spaces; Windows Workstation/server 4.0 is installed and a patch with service PACK 4 is installed; INTERNET EXPLORE more than 5.0, as well as Microsoft SQL SERVER 7.0, and Internet Information SERVICE. The client installation needs to be configured to: PENTIUM II 300MHZ above, 64M ram,500m free spaces, and the Windows 95/98/NT workstation/2000 operating system installed.
V. The solution of structured cabling intelligent Management System
Structured wiring Intelligent Management System can automatically check and monitor the communication room or equipment between the jumper panel and cross connection changes. The design of the standard cabinet with an electronic wiring frame, as well as its hardware scanner, scanning network wiring rack port State equipment. Installed in the cabinet of the management system can manage many ports, the distribution of all the ports on the mobile, increase, change in the mainframe computer room at a glance, network managers just press a button can get status tracking report records, and can assist technical personnel for jumper management. It is connected by connecting the port of the electronic distribution rack (a) from the switch port, while the client's port is connected to the port of the electronic wiring Rack (ii). The port on the electronic distribution frame (a) represents the last port of the switch, and the port on the electronic distribution Frame (ii) represents the ports of each customer. What the administrator needs to do is to connect the port of the electronic wiring frame (a) with the port of the electronic distribution frame (ii), that is, to realize the allocation of network resources. In this way, when the connection needs to be changed, all the changes occur between the wiring racks and the wiring racks, reducing the number of port changes in the switch, and making it easier to centralize the switches of each manufacturer.
At present, this kind of real-time management wiring mainly has: the United States Avaya Company's Systimax SCS Ipatch system, panduit the Panview integrated wiring Real Time intelligent management system which the company launches; RIT integrated real-time intelligent management system launched by Israel Patchview iTRACS Company launched the ITRACS system, the United States Molex launched a real-time wiring system, Nanjing Putian Intelligent Cabling Physical Layer network management system.
Vi. development trend of structured cabling intelligent Management System
Wiring system and management system through the intelligent wiring frame of the organic connection, making network management and wiring system management synchronization, but at present the system has not been widely promoted, its function, technology does not make people wishful, a building using intelligent wiring system will be more than the general wiring of more than 50%. General owners and construction parties are unwilling to invest here. At present, the most advanced wiring should be in the intelligent wiring management based on the automatic jumper technology, it is the development direction of intelligent wiring. At present, there are mainly American Dynatrax system. The user simply moves the mouse, can carry on the wiring the movement, the increment, the change. Can run on existing networks and support future upgrades to the network today.
Network technology is a fast-changing technology, is a rapid development of technology. There is no perfect thing in network technology, only better technology. Electronic wiring frame technology to now only a short span of two years, in technology, technology, there must be loopholes and need to improve the place. For example, the scanner involves scanning speed, system stability and other factors. However, only when a technology is practiced can there be opportunities for improvement and further development. Network technology is not an armchair technology, it is the actual work of the technology. It is hoped that the electronic distribution frame can become a result of network technology, improve the management concept, management efficiency and management method of network management personnel.
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