Cat6 Foiled System Generic cabling solutions

Cat6 Foiled System

Generic  cabling  solutions

One, foreword
The necessity of the wiring system
Today's society, information has become a key resource, must be precisely and rapidly transmission in various communication between equipment, data processing and display device. Therefore, companies, enterprises, government departments will be required at the fastest speed to the communication and information system for adjustment and improvement, and according to the need to be configured into a variety of different structures. At home, is in some new design of buildings, both are still often used obsolete backwardness of wiring technology, causes various system wiring not compatible, pipeline crowded, difficult to adapt to the development of new technology, and often in online repeated investment. With the enlargement of the scale, equipment update, personnel changes, the change in the environment, the situation will become worse and worse. Any add, change, may cause changes in the global, not only influence the work efficiency, operation of companies, enterprises, government departments also have adverse impact. Especially with the emergence of ADSL, FTTB broadband connection, the application and promotion, the original use of wiring system will be unable to meet the increasing traffic demand.
Therefore, seeking a more reasonable, more optimization, strong flexibility, stability and scalability good wiring technology, has become the top priority. It not only can meet the requirements of the now, it's more important is to meet the challenge of the future of wiring system.
Structured cabling system is launched under this background and widely accepted a wiring technology, it can invest in a one-off wiring, solve future quite a period of time all wiring problem.
Information processing system has developed rapidly in recent years, the information transfer fast, convenient, high safety and reliability requirements. In the new office building, built by network internally to adapt to the different requirements of the network equipment, host, terminals, PC and peripheral devices, can constitute a flexible topology, have enough system extensibility, foreign by telecommunication public network connected with external sources, form the omni-directional multi-channel access to information system. In a word, should not only meet the needs of the current information processing, and fully consider the future trend of the development of information system.

Second, the generic cabling system
Introduction of generic cabling
Generic cabling is a modular, flexibility, high buildings or buildings, the information transmission channels between the intelligent building is the "information superhighway". It can make the voice, data, images, and exchange equipment and other information management systems are connected to each other, also can make the equipment connected to external communications network. It includes building the external network or telecom lines on line all cables between the points and application system equipment and related connection parts. Generic cabling by different series and specifications of the parts, including: the transmission medium (including copper or fiber-optic cable), circuit management hardware (cross connection area and connection panel), connector, connector, adapter, transmission electronic devices (modems, network center unit, transceiver, etc.), electrical protection devices (electric surge protector) and support hardware (installation and all kinds of tools management system). As well as the electric protection equipment, etc. These parts can be used to construct various subsystems, they all have their own specific purpose, not only easy to implement, and can be as the change of demand, steady upgrade. A well-designed generic cabling equipment should have certain independence for his services, and interconnect many different application system equipment, such as analog or digital machine public system equipment, also should support image (such as video conferencing, surveillance, TV), which all of the information that can be achieved with the socket it supports different kinds of equipment sharing, that is to say the same standard information socket, can easily through after the jump line definition can plug in different kinds of information equipment different communication protocols.
Generic cabling system is a major innovation in the traditional cabling method, its transmission capacity is one hundred times the old cable transmission cable, interface pattern has become the international standard, various standards compliant, and the old. So users don't have to worry about the current and future system application and the ability to upgrade, it adopted the modular structure, flexible configuration, equipment relocation, expansion is very convenient, fundamentally changed the previous rigid building cabling, chaos, complex situation.

Generic cabling system generally consists of six independent subsystems, cloth cable with star topology structure, the structure of each branch of subsystems are relatively independent unit, subsystem of each branch changes will not affect the entire system, as long as change node connection mode can make the integrated wiring in the star, the general line, ring, tree type structure conversion between. Its six subsystems are:

Work Area
Floor distributor
Telecommunications room
Building backbone cabling
Eqiupment
Campus distributor


Project name:
HongKong FeiXun Investment Holding CO.,LTD.,
http://www.hkfeixun.com/about.asp.






Orders to record




One, foreword

The necessity of the cabling system
Today's society, information has become a key resource, must be precisely and rapidly transmission in various communication between equipment, data processing and display device. Therefore, companies, enterprises, government departments will be required at the fastest speed to the communication and information system for adjustment and improvement, and according to the need to be configured into a variety of different structures. At home, is in some new design of buildings, both are still often used obsolete backwardness of wiring technology, causes various system wiring not compatible, pipeline crowded, difficult to adapt to the development of new technology, and often in online repeated investment. With the enlargement of the scale, equipment update, personnel changes, the change in the environment, the situation will become worse and worse. Any add, change, may cause changes in the global, not only influence the work efficiency, operation of companies, enterprises, government departments also have adverse impact. Especially with the emergence of ADSL, FTTB broadband connection, the application and promotion, the original use of wiring system will be unable to meet the increasing traffic demand.
Therefore, seeking a more reasonable, more optimization, strong flexibility, stability and scalability good wiring technology, has become the top priority. It not only can meet the requirements of the now, it's more important is to meet the challenge of the future of wiring system.
Structured cabling system is launched under this background and widely accepted a wiring technology, it can invest in a one-off wiring, solve future quite a period of time all wiring problem.
Information processing system has developed rapidly in recent years, the information transfer fast, convenient, high safety and reliability requirements. In the new office building, built by network internally to adapt to the different requirements of the network equipment, host, terminals, PC and peripheral devices, can constitute a flexible topology, have enough system extensibility, foreign by telecommunication public network connected with external sources, form the omni-directional multi-channel access to information system. In a word, should not only meet the needs of the current information processing, and fully consider the future trend of the development of information system.

Second, generic cabling system

Introduction of generic cabling
Generic cabling is a modular, flexibility, high buildings or buildings, the information transmission channels between the intelligent building is the "information superhighway". It can make the voice, data, images, and exchange equipment and other information management systems are connected to each other, also can make the equipment connected to external communications network. It includes building the external network or telecom lines on line all cables between the points and application system equipment and related connection parts. Generic cabling by different series and specifications of the parts, including: the transmission medium (including copper or fiber-optic cable), circuit management hardware (cross connection area and connection panel), connector, connector, adapter, transmission electronic devices (modems, network center unit, transceiver, etc.), electrical protection devices (electric surge protector) and support hardware (installation and all kinds of tools management system). As well as the electric protection equipment, etc. These parts can be used to construct various subsystems, they all have their own specific purpose, not only easy to implement, and can be as the change of demand, steady upgrade. A well-designed integrated wiring equipment should have certain independence for his services, and interconnect many different application system equipment, such as analog or digital machine public system equipment, also should support image (such as video conferencing, surveillance, TV), which all of the information that can be achieved with the socket it supports different kinds of equipment sharing, that is to say the same standard information socket, can easily through after the jump line definition can plug in different kinds of information equipment different communication protocols.
Generic cabling system is a major innovation in the traditional wiring method, its transmission capacity is one hundred times the old cable transmission cable, interface pattern has become the international standard, various standards compliant, and the old. So users don't have to worry about the current and future system application and the ability to upgrade, it adopted the modular structure, flexible configuration, equipment relocation, expansion is very convenient, fundamentally changed the previous rigid building cabling, chaos, complex situation.

Generic cabling system generally consists of six independent subsystems, cloth cable with star topology structure, the structure of each branch of subsystems are relatively independent unit, subsystem of each branch changes will not affect the entire system, as long as change node connection mode can make the integrated wiring in the star, the general line, ring, tree type structure conversion between. Its six subsystems are:

○Work Area
○Floor distributor
○Telecommunications room
○Building backbone cabling
○Eqiupment
○Campus distributor

Buildings with complex generic cabling diagram is as follows:


Intelligent building integrated wiring system topology
The computer network system:
The network information, including the differences between the process of computer, such as remote procedure call (RPC), between different computers, such as file transfer, between different users, such as electronic mail (E-mail). Network virtual terminal, through which the user can from the local computer system to access the network in the remote file access other computer systems, applicable to distributed processing, file maintenance, file access efficiency. Remote data access, this is an expansion of the remote file access, but higher than the remote file access efficiency.
The network resource sharing, such as electronic news, information services and equipment resources sharing, such as remote printing, etc.
Voice communication system: :
Main function is to provide telephone service to all users and external communication lines. Voice communication system by SPC digital telephone exchange (PABX) connection user extension through generic cabling system, and through the generic cabling system management subsystem of the speech path flexible allocation (Channel) to all users, and for the future of broadband integrated services digital network (ISDN) - B to lay the foundation.
The system mainly includes the phone voice transmission (including intelligent digital telephone), fax, post broadcast applications. According to the use of units, the demand of voice communication is relatively large, some capacity to reach thousands of the door switch. PABX set in their ZhuJiFang, the MDF installation position can be set within the ZhuJiFang, according to the ratio of 10:1 configuration trunk number, by the PABX host to user desktop using the generic cabling system.

Telephone connection with generic cabling system steps are:
This system will use the communication way of total rooms centralized management, each speech path by 2 or 4 to the main line to transmits the floors (including digital telephone), and each level routes according to the international standard 4 to 5 kinds of UTP cable configuration, can be used bandwidth at 100 MBPS, satisfy the current demand, and lays the foundation for the future development of multimedia digital telephone, and meet the demand of broadband B - ISDN.
In addition, in the digital SPC exchange (PABX) generic cabling, direct dial telephone (without PABX the exterior connection to the main distribution frame directly to register, and trunk through the PABX connected with paint, paint and connected to the main distribution frame, constitute extension telephone lines.

The structured cabling system features:
A) systematic engineering - is a complete set of structured cabling systems engineering, including the transmission medium (twisted-pair cable (copper) and fiber), the connection hardware (including jumper, modularization socket, adapter, tools, etc.) as well as installation, maintenance, management and engineering services, etc.
B) modular structure - a structured cabling system design makes with minimal additional wiring and change (if required) can realize system relocation, expand and reinstall.
C) is independent of the applications - as the CCITT seven layer protocol in the bottom of the physical layer, constitute the basic link of a structured cabling system, like a message channel to connect the building inside or outside of all kinds of low voltage electrical apparatus. The information transmission path to provide various sensor information and the ability to aggregate data.
D) flexible convenience - structured cabling system design at the same time compatible with voice and data communications applications. Thus reducing the demand for traditional line, at the same time provides a structured design to implementation and management of the system.
E) technology advanced - structured cabling system allows the user to possible new technology used in a variety of possible. This is because the structured cabling system is independent of the application, and can provide considerable redundancy for future applications.
Generic cabling system design and installation standards and specifications

○ EIA/TIA-568 Commercial building communications wiring standards
○EIA/TIA-569 Commercial building communications wiring trough and space requirements
○ EIA/TIA TSB-67 Commercial building communications wiring test standard
○ EN50173-2007 Information technology - general wiring system
○ ISO/IEC 11801 User building general wiring standards
○ GB 50311-2007 Architecture and building integrated wiring systems engineering design specifications
○ GB 50312-2007 Architecture and building integrated wiring systems engineering acceptance specification
○ Fexuning telecommunications company generic cabling product manuals

Third, company profile

Company profile

HongKong FeiXun Investment Holding CO., LTD., founded in 2003, committed to the field of intelligent integrated wiring products technology research and development, production and provide solutions for network physical layer of the supplier. Provides monitoring of high performance copper cable, optical cable and cable products. In the era of the ever-changing snatched, Hong Kong has been adhere to the "high bandwidth performance, strong adaptability and flexibility, suitable for all kinds of application design" commitment to provide the feasibility for the continuous development of network, can upgrade wiring solutions! Has more than 10 countries and regions in the asia-pacific region to provide quality, cost-effective products and services! On the Chinese mainland in 2010, set up the greater China area sales center, radiation for the center with xiamen mainland provinces, municipalities directly under the central government and autonomous regions.
HongKong FeiXun by wiring field international industry standards, industry standards, to constantly meet the demand of cabling solution and focused on product performance, manageability, high efficiency, the transmission speed, security, reliability, flexibility, low cost and ease of use and other key technology research and development! Successively with the international famous network company research and development institutions to establish cooperative partnership! With strong research and development of technical strength, advanced production capacity optimization wiring product quality, to provide a set of integrated wiring solutions, to support any business model of network development, meet the small to family, to the enterprise communication environment solution user and business needs.
Adhering to the "high responsibility, high quality, high standard" enterprise conviction, to society, to the public, the user is responsible for the state of mind! Sincere together! Sincerely hope to FeiXun the telecommunications network technology bring us a better network word.

The main products

HongKong FeiXun company's products mainly include:
Cat5, Cat5e, Cat6 cable, optical fiber, and generic cabling products such as module, a socket.
Company products by the state ministry of information industry information transmission line quality supervision and inspection center, each kind of product with license and all kinds of industry qualification certificate.
Perfect sales and service system
HongKong FeiXun all over the country more than the office of the city, in line with the concept of "high responsibility, high quality, high standard", adhere to the "good quality, moderate price, first-class service" the management objective, wholeheartedly for the general customers to provide quality products and first-class service.

Twenty years quality guarantee commitment
Use FeiXun system whole series of products, from HongKong FeiXun Investment Holding CO.,LTD.,certified engineer in TIA/EIA - 568 - a or ISO 11801, GB 11801-50311, GB 50312-2007 standard design, construction and installation of generic cabling systems engineering,and according to the international test standard,the acceptance of fly - after application can be allowed on the HongKong FeiXun investment holding co., LTD. Provide 20 years of application to ensure product quality.
FeiXun cabling system certification engineers education training
HongKong FeiXun investment holding co., LTD. Regularly to their offices and agents of engineering design, construction personnel for centralized training and certification assessment. Only by FeiXun cabling system certification engineers to be able to provide customers the most optimal wiring schemes, the best construction quality, the best after-sales service. Authenticated by the FeiXun communication technology co., LTD. Engineer FeiXun cabling system, on the implementation of FeiXun to get the HongKong FeiXun Investment Holding CO.,LTD., Provide 20 years of application to ensure product quality.

Fourth, system overall design

Project overview

The project involves the * * * * * * * * * * * * building monomer building, on * *, * * floor underground.

The user needs

Mainly aimed at * * * * * * * * * * * * * * * * * whole informatization, network, intelligent building design, FeiXun, integrated wiring for the office building provides a complete link to exceed five types of cabling system solutions. Unified pipeline and cable piping, wiring, medium in order to make the wiring system can be easily connected with terminal equipment, a telephone, computer, such as meetings, monitoring, TV network. Of building integrated wiring design, the goal is to establish a can meet the intelligence building system integration, network integration, the integrated computer network system with advanced technical level at the same time, system in pleasant to use, flexible, modular, scalable and fully meet the demand of future development on the function indexes, which will increase the general building to the new height of personalized and intelligent, as an intelligent building.

Technical solution

This design scheme based on user requirements and the analysis, in meet advanced cabling system, flexibility, economy, under the engineering requirement of cabling system in the following ways:

(1) the total scheme is made of super five classes of shielding system add core multimode fiber.
(2) the building of information available about * *, information point distribution is: the voice point * *; Data points * *.
(3) using * * * * * * within the multi-cores cable, room core multimode fiber optic cable connection of the layers of each tower management subsystem of distribution frame.
(4) is made of super 5 kinds of wiring system standard four pairs of unshielded twisted pair (UTP) as horizontal cabling of main subsystems which is connected to the information point of each functional area,
(5) is made of Cat5e standard structured, modular components of various distribution frame floors, the regional distribution frame.
(6) the information point is made of Cat5e information module and configure corresponding stand-up, double panel, anchor socket mouth, etc.
(7) floor of the facility, equipment set up
(8) generic cabling system of each subsystem (including: workspace subsystem, horizontal subsystem, management subsystem, equipment, complex subsystem and subsystem, vertical lines between system into line to line) of the design are in line with the GB 50311-2007 "general cabling system engineering design specification" in the regulation of each subsystem.

In particular, put forward the scheme of solution support the following application and equipment:

voice

PBX
Telephone, fax,
The conference call
Voice mail, voice information stored data
Set up office computer local area network, connection in the building, and to realize OA (office automation) system
LAN interconnection between floors, high-speed Ethernet and Internet connection

Work Area

The workspace refers to extend from cable by the level of system and the data terminal equipment connection cables and adapters and user information socket. Workspace UTP/FTP jumpers for cord (Patch Cable) materials, namely the core of the twisted pair Strands of fine copper wire, maximum length should be not more than 5 m.
According to the actual situation of the drawing and stationing, combined with the user's requirements in terms of total points is about * * * information point.

See the table below information point distribution:

The product selection

Cat6 Four Pairs Twisted-pair

Full compliance with TIA/EIA-568-B-2.1 and to ISO/IEC11801 and specifications to the requirement of cat6
Support gigabit Ethernet (1000 Base-T and 1000 Base-TX) and downward compatible with other applications
In attenuation,near end crosstalk attenuation,structural return loss, near end crosstalk attenuation and damping ratio of technology parameters meet the international standards of the latest cat6
Cable center adopt cross core framework,the maximum extent to ensure the installation process does not destroy twisted-pair wring pitch to provide greater transmission bandwidth and transmission rate
Under 250MHz bandwidth:cat6 test in accordance with the latest international standards

Cat6 Keystone Jack

The terms of the performance accord with standard of cat6
568A and 568B color coding,convenient cable termination
IDC cocker spaniels,22-26AWG specification conductor of integration from lineup tool press card
Materials,the plating layer 50um, can pull out more than 1000 times
Performance backward compatibility cat5,cat5e
Many colors to choose from

Cat6 Patch Cord

Performance accord with standard of TIA/EIA568B cat6 of regulation, can be compatible with five categories and super five products
Adopt cross skeleton
RJ45 module plug, cable boot, cable integration
Pull out plug number greater than 1000 times
Many colors to choose from
Optional length:2m/3m/5m
Optional shielded and unshielded

Faceplate

Uses the high quality engineering plastic, beautiful and easy
Strong,flexible,and can prevent accidental damage
Attached label,is advantageous for the subscriber identity module USES, such as data,voice
Can choose stand-up,double and four

Administrative subsystem
Management subsystem is set within the wiring room floor, weak current well, cable termination is horizontal system, system is also the trunk cable termination sites; By the original poster distribution frame, floor points distribution frame, jumper, conversion socket, etc. The user can change in management subsystem, increase, transfer, extension cable, is used to change the cable routing. Recommend appropriate cable routing and adjustment of a management subsystem.
Management subsystem provides the means to connect with other subsystems, so that the whole wiring system of equipment and devices connected to an organic whole. Adjust the handover management subsystem can schedule or reschedule lines routing, and transmission lines can be extended to building within the work area, is the concentrated reflection of integrated wiring system flexibility.
Three application management subsystem: level/mains connections; Main system connected to each other; Floor equipment connection. Line color marking management can be implemented in the management subsystem.

The product selection

Cat6 Unshielded 24 Ports Patch Panel

Performance accord with standard of TIA/EIA568B cat6 of connectors
Directly installed on the 19 "rack
Back line bracket make the cable more orderly management,guarantee the cable bending radius and avoid the excessive bending may cause damage
The back line bracket with cable ties,provide good protection for the horizontal cable
The flexible clamping design,drawing number greater than 1000 times
22--26AWG specification conductor of card
Optional 24 Ports or 48 Ports


The vertical subsystems
Vertical main subsystems by the connection between the main equipment of cable between wiring between the floors. Its function is mainly to the hierarchical distribution frame and the main distribution frame is linked together, with the trunk cable provides the channels of communication between floors, make the whole wiring system composed of an organic whole, vertical main subsystem adopts the hierarchical topology structure star topology, each floor wiring between all needs to adopt vertical trunk cable connected to the big between the building equipment.

Product selection:

Optical fiber systems

Optical Fiber Distribution Frame

For 19 "standard rack/racks,drawer,height of 1U,including melting flange
Flexible connector panels,optional SC,ST,FC or LC type optical fiber coupler
Optical fiber connector panel front pull plug, lock
Closed management,line space is large
Support for ST,SC,FC,LC connection panel
Can accommodate up to 48 core end of welding

Optical Fiber Coupler

Single and double simplex provide ST simplex,FC,SC and LC duplex,suitable for single-mode and multimode
With high precision zirconia ceramic sleeve
Product finish is high,the high precision mechanical dimensions
Good stable performance,continuous insertion loss is small
Matching used and installed on the optical fiber connector panel

Optical Fiber Patch Cord

Applies to coupler and optical module connection
Provide simplex and duplex,optional single-mode and multimode jump line
Connector use high-density ceramic core
Use high-density connection mode
Selection of a variety of length

Indoor Multi-Mode Optical Cable

Cable core diameter:62.5±um,the construction of backbone network and cable to the workspace application
Even,tight set of optical cable diameter has a good effect of stripping
Between skin and tight set of optical cable has many strands of aramid yarn,increased the strength of the cable
The geometry of the cable good consistency
Orange rind and easy construction
4,6,8,12 core specifications to choose from

Indoor Multi-Mode Optical Cable (OM3)

Cable core diameter:50±2.5um,support 10Gbps transmission of up to 550M
Even,tight set of optical cable diameter has a good effect of stripping
Between skin and tight set of optical cable has many strands of aramid yarn,increased the strength of the cable
The geometry of the cable good consistency
In the case of 850nm attenuation is less than 2.5dB/km
In the case of 850nm provide greater than 500MHz/km
Aqua skin,easy construction
4,6,8,12 core specifications to choose from
Indoor Single-Mode Optical Cable

Cable core diameter:9.2±0.4um,suitable for building vertical trunk, and the application of optical cable to the desktop system
Even, tight set of optical cable diameter has a good effect of stripping
Between skin and tight set of optical cable has many strands of aramid yarn, increased the strength of the cable
The geometry of the cable good consistency
In the case of 1550nm attenuation is less than 0.22dB/km
Support for 10Gbps，1Gbps transmission
Yellow skin, easy construction
4,6,8,12 core specifications to choose from

Outdoor Multi-Mode Optical Cable

Cable core diameter optional 62.5±2.5um or 50+1um,long transmission distance, is suitable for the complex application subsystem
Both sides plastic coated is applied to take (PSP) reinforced cable allows pressure, impact resistance and waterproof performance
High strength center pine casing, tube filled with gel
Special design compact structure, prevent casing retraction
Optical cable outer sheath with a blue FangWeiXian
Installation method:overhead,pipes,buried
Light armor structure
4,6,8,12,24 core specifications to choose from

Outdoor Single-Mode Optical Cable

Cable core diameter:9.2±0.4um,long transmission distance,is suitable for the complex application subsystem
Both sides plastic coated is applied to take (PSP) reinforced cable allows pressure,impact resistance and waterproof performance
High strength center pine casing,tube filled with gel
Special design compact structure,prevent casing retraction
Optical cable outer sheath with a blue FangWeiXian
Installation method:overhead,pipes,buried
Light armor structure
4,6,8,12 core specifications to choose from

Cable Management

Installed on the 19 "standard rack/rack, height 1 u
For jumpers between distribution frame and network equipment management, convenient cable arrangement
Metal material

Eqiupment

Equipment between subsystem is a centralized area, connection system of public facilities, such as PBX, core switch, server, building automation and security systems, and by vertical lines connected to management subsystem.
Equipment for data, voice, vertical in the subsystem is building between the trunk cable terminating places; Cable is complex Entering the building place for terminating; But also a variety of data voice host devices and protection facilities installation place. Suggest equipment between subsystems is located in the central building or in a building, second floor, location should not be far away from the elevator, but leave room for future expansion exhibition, on the top floor or basement is not recommended. Suggested that the buildings to the cable when entering the building should have corresponding over-current, over-voltage protection facilities.
Equipment subsystem space between to design according to the requirements of ANSI/TIA/EIA - 569. Subsystem space for installation of telecommunications equipment, connection between equipment hardware, joint sleeve, etc., for the grounding and connection facilities, offers control environment protection; Is a system for management, control, maintenance, equipment subsystem in the space between and the doors and Windows, ceiling, power supply, lighting, and grounding requirements.


The overall configuration
System installation
The workspace
Information socket generally installed on the wall, using 86 type deepen metal bottom box. Special occasions, such as the lobby consider a real estate. Information next to its socket outlet should keep a distance of 20 cm, information along the lower edge of socket and power socket 30 cm away from the floor level. Considering the possible problems in the actual construction, 3% will be for a module of redundancy. Horizontal zone
Adopts ceiling light tank type cable tray, without using a box. Because this way is more suitable for large buildings. For horizontal cable provides mechanical protection and support of prefabricated groove type cable tray, metal bridge is a kind of closed type, installed in the ceiling, from weak current shaft to have information point room, by the embedded within the walls of different specifications of the iron pipe, drew lines into the dark tin box installed on the wall.
The level of the generic cabling system wiring is radiation type, large amount of lines, so the slot capacity calculation is very important, according to the standard of design method of slot, should according to the level of the diameter of the cable to determine trough capacity, i.e., the trough of the cross-sectional area = level 3 trough lines cross sectional area of a material for cold rolled alloy plate, the surface can be processed, such as galvanized, plastic spraying, painting, slot can choose different specifications according to the circumstance. To ensure the bending radius of cable, wire slot should be matched with the corresponding specifications of the branch parts, in order to provide the routing lines turn freely. To ensure the safety of the line, we should make the grounding end of the tub with good, metal trough, metal hose, metal bridge and distribution line tracks all needs to overall connection, then ground, such as export accurate location of uncertain information, guy Can be the first cable tray in the outlet inside condole top, after the specific location, again to export information.

Complex subsystem
Complex subsystem usually involves two on the building and its wiring usually within 3 km distance. In complex child system should not only consider the same cable laying floors of the building and the room, you should also consider even answer the problem between different buildings and at the same time should be take care of the building within the existing network access.
In the design of construction group of subsystem should consider above all is building connection with entrance, both overhead line or directly buried walk the line, the beginning and end of the cable way almost teacher construction is linked together. These lines must remain isolated each other Avoid contact with people, vehicles and power supply circuit.
Some commonly used methods for complex subsystem LanGou overhead, buried, line.

Near the distribution frame of environmental requirements

Due to the distribution frame using the management subsystem, so it is the core of the whole wiring system. Its layout, the selection and the environment conditions of considering whether appropriate, directly affect the normal operation and maintenance of information system in the future, the use of flexibility. At this point, put forward the following Suggestions:
?Not less than 150 lx indoor lighting;
?System is a passive cabling system, itself does not need power supply. But in order to ensure that the installation, testing and maintenance in the future may use the power supply, suggest to install a number of power sockets, each outlet capacity of not less than 300 w.
?According to the actual demand of network equipment for power supply on the floor, equipped with can meet the need of power system
(including UPS system);
?Distribution frame should be close to the elv shaft, as far as possible in order to convenient wiring and save the investment;
?Distribution frame of network equipment is located near the environment temperature should be kept between 18 to 27 ℃;
?Distribution frame beside the humidity should be kept between 30% and 50%;
?In order to ensure the distribution frame on work performance is good, all kinds of socket for wiring room with good ventilation, and have to do to the house clean;
?For construction and maintenance is convenient, it is recommended that the floor wiring between the size of the more than 10 square meters (wiring system). Grounding and lightning protection The so-called grounding, simply put is all sorts of equipment and the electrical connection of the earth. Is the purpose of grounding in order to make the equipment
Normal and safe operation, as well as building and personal security, for computer and communication system, the main grounding is the signal of the electronic equipment, computer special interact.
Good grounding system is essential to ensure safe and reliable data transmission and an important link to good wiring system Docking system has strict requirements and provisions:
?Grounding wire from the floor distribution frame to grounding the dc resistance of not more than 1 ohm, and want to permanently keep it connected.
?If the network system in several different the ends of the earth, that the ends of the earth to connect each other, in order to reduce the potential difference between the ends of the earth.
?Metal trough of wiring and piping should be grounded in order to reduce the impedance.
?Cabinet or rack should be well grounded. At the same time, the outlet and inlet line of telecommunication cable and optical fiber cable to consider lightning protection, the metal skin of the cable on the in and out of the end,
Connected to the electrical equipment grounding steel tube, etc., and equipped with lightning protection device.

(1) complex subsystems: the connection between two or more buildings of cables and wiring devices. If the network connection between cable as building medium, do not need to install the lightning arrester, can even overhead laying. If using twisted pair, you must wear pipe buried. After entering the building, using twisted-pair cable laying, cable must separate installation in the weak current metal bridge or metal pipe.
(2) equipment between subsystems: by into line equipment, program-controlled switches, such as the host computer equipment and wiring equipment. It is one of the main wiring system management area, usually divided into two parts, voice and digital management. Voice equipment management subsystem to connect various lines outside the building, and after jumper and vertical main subsystem, connecting the voice management subsystem, as the lightning protection electric breakdown should install ark of communication lightning protection lightning protection measures as the first level of communication lines. Connections in and out of the building's large logarithmic communication cable, must be buried in and out of the building in case of communication lines and dramatic induction lightning. Data equipment management subsystem is the core equipment, computer network is adopted the logarithmic twisted-pair cable as a transmission trunk line. Need to be in lightning protection apparatus cabinet installed in the computer network, as the first level of computer network lightning protection measures. If using optical fiber as main computer network, the absolutely avoid the effect of lightning, lightning protection measures is the best.
(3) management subsystem: set up between the layers of wiring, by wiring devices, input/output devices, etc. Management subsystem is divided into two parts, data and voice. Voice part adopts BIX mounting bracket is fixed on the wall. By the wiring board, winding ring and so on, need to install signal arrester as communication lines of the second lightning protection measures. Data part USES twisted-pair cable as the main vertical, also need to be installed in the cabinet signal arrester as the second lightning protection measures of computer network, the protective down lead release lightning current to form produced by the electromagnetic field of mutation induction thunder.
The device (4) the vertical main subsystems: the wiring between the devices and jump line between equipment and equipment to the floors of wiring connections between cable. Divided into two parts, a voice trunk and data trunk. Voice trunk in accordance with the standards of program-controlled switches and telecommunication systems and practices, big log using shielding twisted-pair cable, because have installed signal arrester in administrative subsystem, so this part generally does not need to reload lightning protection equipment. Data as a main adopted the logarithmic twisted-pair cable as a data transmission backbone cable, because have installed signal arrester in administrative subsystem, so generally do not need to be in the points and then install the lightning protection equipment. If using optical fiber as main computer network, absolutely avoided due to the down lead discharge lightning current and the formation of the electromagnetic field, the mutation induction lightning, lightning protection measures is the best.
(5) the level of main subsystems: the connection management subsystem to the workspace subsystem levels wiring and information group into a socket. Data and voice points all use twisted-pair cable laying in the metal bridge and metal pipe. Because the metal bridge and the metal pipe connected to the integrated grounding system to form the signal lines of shielding layer. And in the management subsystem, has been set against the thunder protection device, so don't need to add in the level of main subsystems lightning protection device.
(6) the workspace subsystem: consists of various devices attached to the information on the socket. Connected to the computer network data point due to lightning protection measures have been taken in the management subsystem, so in the workspace subsystem generally don't need to be equipped with lightning protection facilities, if need to use a modem to connect the computer through voice point, because the voice circuit connected to the outside, then it is necessary to install signal surge arrester, lightning protection measures as a final stage.