They all have their own specific uses.
Generic cabling system.
In addition, from the perspective of logical function, computer network is a collection of computer systems that connect multiple computers with communication lines based on the purpose of transmitting information.
Figure 2 is the general structure diagram of generic cabling system: 2 computer network system computer network refers to a computer system that connects multiple computers with independent functions and their external equipment in different geographical locations through communication lines and realizes resource sharing and information transmission under the management and coordination of network operating system, network management software and network communication protocol.
It also includes all cables and related connecting parts between the connection point of the external network or telecommunication line of the building and the application system equipment.
It can support and accommodate multiple computer networks.
In short, computer network is a collection of many autonomous computers connected by communication lines..
Expansibility: the generic cabling system is expandable, so that it is easy to expand new equipment when there is a greater use in the future.
1) Introduction generic cabling is expressed in English as structured cabling system (commonly referred to as SCS, which was first proposed by at & T) or premises distribution system (PDS, which is adopted in the current national standard).
A general definition is: a system that uses communication lines to connect geographically dispersed computer systems and communication equipment with independent functions in different forms, and realizes resource sharing and information transmission with fully functional network software and protocols.
Ensure the supply of water, electricity, cold, heat and other energy.
Building users can timely understand the internal information of the building and get property services in time; Provide property management means for building managers.
Economy: the use of generic cabling system can reduce the number of managers.
On the whole, computer network is to interconnect computers distributed in different geographical regions and special external equipment with communication lines into a large-scale and powerful system, so that many computers can easily transfer information to each other and share hardware, software, data information and other resources.
Modularization: except for the horizontal cables fixed in the building, all other connectors in the generic cabling system are basic standard parts, which can interconnect all voice, data, image, network and building automation equipment to facilitate use, relocation, change, capacity expansion and management.
Versatility: it can adapt to all kinds of computer and network topology that conform to international communication standard, and can adapt to simultaneous interpreting of different transmission speeds.
From the perspective of users, computer network is defined as follows: there is a network operating system that can be automatically managed for users.
Provide appropriate environmental parameters such as air temperature, relative humidity and air cleanliness in the building.
Provide beautiful background music and information display to meet the needs of information exchange between various departments inside the building and with the outside to realize information resource sharing.
It calls the resources called by users, and the whole network is transparent to users like a large computer system.
Generic cabling is a modular and highly flexible information transmission channel in or between buildings.
They are not only easy to implement, but also can be upgraded smoothly with the change of requirements.
The following figure is the system diagram of six subsystems of generic cabling, see Figure 1.
2) the advantages of generic cabling compared with previous cabling, The characteristics of generic cabling can be summarized as follows: practicability: after implementation, the cabling system will be able to adapt to the development of modern and future communication technology, and realize the unified transmission of voice, data communication and other signals.
Extend the service life of the equipment; Energy saving; Save personnel; Improve equipment utilization.
Generic cabling consists of components of different series and specifications, including transmission media, related connecting hardware (such as distribution frame, connector, socket, plug and adapter) and electrical protection equipment.
It can connect voice equipment, data equipment, switching equipment and various control equipment with information management system, and also connect these equipment with external communication network.
A computer network consists of transmission media and communication equipment.
At the same time, due to the modular structure, the work difficulty greatly reduces the cost of changing or relocating the system in the future.
Fixing Socket Angular End Nail Plate
1) According to the broad definition, the simplest definition of computer network is a collection of interconnected, autonomous computers for the purpose of sharing resources.
Main content of this paper: generic cabling system, computer network system, program-controlled exchange system, closed-circuit television monitoring system, access control and attendance card consumption system, parking lot management system, anti-theft alarm system, building intercom system, visitor system, patrol system, intelligent home system, three meter copy system, paging intercom and professional intercom system, building automation system, public broadcasting The weak current system of cable TV and satellite receiving system of broadcasting system includes: 1.
Flexibility: the wiring system can meet the requirements of various applications, that is, any information point can connect different types of terminal equipment, such as telephone, computer, printer, computer terminal, electric fax machine, various sensor devices and image monitoring equipment.
Source: if there is infringement in the electromechanical world, please contact the deletion Guide: the overall function of the intelligent weak current system can be reflected in the following aspects: ensure the normal operation of all electromechanical equipment in the building; Provide personal and property security and comfort for personnel in the building; Provide comfortable and convenient working and living environment for users inside the building.
These components can be used to build various subsystems.