Preface
Hello everyone, I am Mr. Lin, integrated wiring system is the foundation of each weak current system. The basic knowledge of the integrated wiring system must be mastered. The basic knowledge of the integrated wiring system shared today is particularly important.
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integrated cabling system structure
structured (integrated) cabling system (Structured Cabling System abbreviation SCS) Using a modular and hierarchical star topology, it can generally be divided into six subsystems:
1 workspace subsystem
includes the entire area from the terminal device out of the information socket .
workspace wiring subsystem consists of a connection (or soft wire) connected to the information socket by the terminal device. It includes assembly cords, connectors and extension cords required for connection, and bridges between the terminal device and the information port I/O.
may require some kind of transmission electronic device when connecting the terminal device and I/O, but this device is not part of workspace subsystem . For example, a modem can provide the required conversion signals for compatibility between terminals and other devices and the extension of transmission distance.
2 Horizontal Cabling Subsystem
consists of cables between the distribution room of each floor of the building to each horizontal area.
Horizontal Cabling Subsystem is part of the entire cabling system, extending the trunk subsystem to the user's work area. The difference between the horizontal cabling subsystem and the vertical trunk subsystem is that the horizontal cabling subsystem is always on one floor and terminated on the information socket. In existing buildings, the vertical trunk subsystem is composed of optical cables; while the number of horizontal cables is limited to 4 pairs of UTP (unshielded twisted pair) and optical cables (voice), which can support most modern communication devices . When certain bandwidth applications are required, optical cables can be used to desktop.
3 management subsystem
is composed of power distribution rooms divided by each layer.
management subsystem consists of intersection, interconnection and I/O. Management points provide connection means for connecting other subsystems.Interconnects and interconnects allow the communication lines to be positioned or relocated to different parts of the building so that communication lines can be managed more easily. The I/O bits are in the user's workspace and other rooms, allowing you to easily plug and unplug when mobile terminal devices. When using jumper or plug-in lines, cross-connects allow the communication lines terminated on one end of the unit to lines terminated on the other end of the unit. A jumper is a very short single wire that connects the two wire end points at the cross connection; the insertion wire contains several wires, and each wire has a connection socket at the end to provide a simple method again, and does not require the special tools used when installing the jumper .
interconnection performs the same purpose of cross connection, but does not use jumper or plug-in wire, just wires, sockets and adapter . Both interconnect and cross connection are suitable for optical cables. Cross-connection of optical cables requires the use of optical cable insertion lines with optical connectors and short optical cables at both ends.
4 vertical trunk subsystem
consists of trunk cables connecting the equipment room and the distribution room of each layer.
trunk subsystem is part of the overall building integrated wiring system. It provides routing of trunk lines ( feeder line ) cables of the building. It usually provides multiple line facilities between two units, especially at public system equipment located at the central point; The subsystem consists of all wiring cables, or is composed of wires and optical cables and related supporting hardware connecting the optical cables to other places; the transmission medium may include internal cables that are vertically cabling between floors of a multi-story building or cables from main units (such as computer rooms or equipment rooms and other trunk lines).
In order to connect and communicate with other buildings in the complex, the trunk subsystem connects the trunk lines and wiring forks between equipment and equipment.
In order to connect and communicate with other buildings in the complex, the trunk subsystem connects the trunk lines and wiring forks between equipment. The points are connected to the facilities between buildings to form a building subsystem.
5 Device Interval Subsystem
is usually located in the host room, so that the main line is connected to the hosts of each system through a jumper frame.
Device wiring subsystem consists of cables, connectors and related support hardware in the device, which interconnects various devices of public system equipment. The subsystem connects the trunk line cross connection and the wiring cross connection with the public system equipment; the subsystem also includes wires in equipment and adjacent units (such as the entrance area of a building), which connect equipment or lightning protection devices to effective building grounding points that comply with the US Electrical Regulations (NEC).
General equipment interchange subsystem is considered in two parts:
The first part is a computer room, which places network equipment, and can connect servers, hosts, etc. on the network equipment;
The second part is a communication center, which places PABX and main distribution frames that connect PABX and vertical dry cables, etc.
6 Building Subsystem
Building Subsystem extends cables in one building to devices that communicate equipment in other buildings of the building. It is part of the entire wiring system (including transmission media) and supports the hardware required to provide communication facilities between buildings, including wire cables, optical cables and electrical protection equipment that prevents the surge voltage of the cable from entering the building.
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