In today's society, information has become a very critical resource, it must be transmitted accurately and rapidly among various communication devices, data processing equipment and display devices. For this reason, companies, businesses, and government departments will require the fastest speed to adjust and improve these communications and information systems, and to configure them to different structures as needed.
At home, even in some newly designed buildings, often still use the past those wiring technology, resulting in a variety of systems cabling is incompatible, difficult to adapt to the development of new technologies, and pipelines are overcrowded, and the distribution of investment is often duplicated. This situation, but also with the company, enterprises, government departments of the expansion, equipment updates, personnel changes, office environment changes, and become worse. Any additions, changes, all may cause the overall change, not only affects the staff's work efficiency, to the company, the Enterprise, the government department's operation also has the bad influence. Especially with the appearance, application and popularization of ISDN (integrated Service Digital Network), the original wiring system will not meet the requirements.
Therefore, to seek a more reasonable, more optimized, flexible, stability and scalability of good wiring technology, has become a top priority. It can not only meet the needs of the present, more importantly, to meet the future of the wiring system challenges.
The structured wiring system is a kind of wiring technology which is introduced and widely received in this background, it can solve all the wiring problems in the future for a considerable period of time by investing in a one-time wiring.
In recent years, information processing system has developed rapidly, which requires high speed, convenience, security and reliability. In the office building, the network requirements for the internal adaptation of different network equipment, host, terminal, PC and external equipment, can constitute a flexible topology, adequate system expansion capabilities, external through with the National public network and external sources of information connected to form a full range of multi-channel information access system. In short, it is necessary to adapt to the current information processing needs, but also fully consider the future development trend of information systems.
Structured wiring is a complete system engineering, including transmission media (twisted pair (copper wire) and optical fiber), connecting hardware (including jumper racks, modular sockets, adapters, tools, etc.) as well as installation, maintenance management and engineering services. As the lowest physical layer in the CCITT seven-layer protocol, the structured wiring system forms a kind of basic link, like an information channel to connect a variety of low-voltage electrical and electronic devices inside or outside the building. These information pathways provide the ability to transmit a variety of sensing information and integrated data.
The design of structured cabling system is compatible with voice and data communication applications. This reduces the need for traditional pipelines and provides a structured design to implement and manage the system.
At the same time, structured cabling system allows users to use a variety of possible new technologies. This is because the structured cabling system is independent of applications and can provide considerable redundancy for future applications.
Wiring system is the foundation of the whole intelligent Systems Engineering, if the information system is the soul of intelligent building, then wiring system is equivalent to information system nerves. Therefore, it can be said that the choice of wiring technology and cabling system design determines the entire building's information system vitality, it will relate to the building in the next 30 years or even 50 years of use effect.
With the popularization of computer and the development of Internet technology, it is more and more adopted to set up intranet network in hotel and use modern office management to improve management efficiency. Structured integrated Cabling system is the physical basis of intelligent network integration System, through the use of intelligent wiring technology, the entire office building voice, data, images, automatic control signals, such as integrated in the unified management of the same entity, the hotel to achieve a full range of management and control, to provide owners with convenient, fast and diverse means of communication.
1. Demand Analysis
Integrated wiring system using structured wiring system, should be able to compatible and support all computer equipment systems, data systems (including some wireless AP access points), hotel video-on-demand system and voice system.
The system can be composed of five subsystems, working area subsystem, horizontal subsystem, management subsystem (floor distribution line frame), trunk subsystem, equipment subsystem (main wiring frame).
Network data backbone using 6-core multi-core multimode optical cable, the voice trunk uses five kinds of UTP big logarithm cable, the data main wiring frame uses the fiber-optic wiring frame or the RJ45 wiring frame, the data wiring frame must adopt the rack type, places in the standard cabinet, and provides the standard cabinet.
After the completion of the integrated wiring system will provide the hotel voice, data and video, images and other multimedia transmission of high-speed communication platform, and fully consider the security and confidentiality requirements to meet the comprehensive building data communication, voice communication, LAN, WAN needs.
2. Overall design
2.1 Overall structure
Figure 1-1
In the structure of wiring system, according to the actual situation of the Hotel park, the integrated wiring system is designed according to the following five parts: Work area subsystem, horizontal subsystem, management subsystem (floor distribution line frame), trunk subsystem, equipment subsystem (main wiring frame).
Hotel data and voice main wiring set up in a computer room, a total of 14 floor distribution racks, located in the weak, according to the wiring design specifications, floor distribution line frame should meet the level of cable less than 90 meters. From the underground layer to the five-storey weak well inside the floor distribution lines (satellite), seven-storey distribution line between six to eight layers of wiring, 10-layer wiring between nine to 11 layers of wiring, 13-layer wiring between 12 to 14-layer wiring, 16-layer distribution between 15 to 17-layer wiring, 19-layer wiring between 18 to 20 layers of wiring, 22 floors 21 to 23, 24 to the top floor for a separate wiring, placed in 24 layers (figure 1-1).
For the voice system, the trunk line is centered on a single voice total wiring frame, star laying Room 5 class 24 pairs of large logarithmic cable to each layer distribution line; For the data system of the main line, with the computer network design, is a computer room in the main data distribution frame as the center, star-laying 6-core Wanchaodo mode cable to the various wiring.
2.2 Subsystem Configuration
Work area, horizontal cable type: Network development is very fast, although the current to the desktop 100Mbps transmission rate can meet the current and short-term needs, but the gigabit to the desktop is also maturing, in the next few years gigabit to the desktop will become the mainstream, Therefore, in the selection of digital Network level cable, six categories of 4 pair of UTP cable and six type of unshielded socket module are used, the whole horizontal channel provides more than 250MHz of bandwidth, and the Gigabit Ethernet switch can fully meet the demand of 1000Mbps speed of transmission.
Voice and VOD point using the same type of super five wiring, can meet the voice, VOD requirements have a certain expansion function.
Vertical backbone Type: A five-class large logarithmic UTP cable can be fully satisfied with the speech backbone. The data backbone adopts 6-core multimode indoor fiber. Multimode Fiber has a wide band and large transmission capacity. The use of multimode million-gigabit fiber and Gigabit Ethernet switches can fully meet the backbone of the demand for gigabit transmission.
Management room (distribution line) Location: between the management according to the actual application set up in the two class room. To ensure that each horizontal cable does not exceed 90 meters.
Equipment between the location: referring to the bidding documents and plane, system drawings, the hotel's computer mainframe room is located on the first floor.
Selection of the wiring frame: connecting the data and video on demand of the distribution rack Select 24 six types of unshielded modular wiring racks.
3. System performance
3.1 Trunk Wiring
The data backbone adopts the Wanchaodo mode cable, the optical fiber is within 500 meters, fully supports the transmission of the million gigabit network. The backbone adopts 6-core cable redundancy, which provides great flexibility and reliability for network applications. The speech backbone uses 5 type large logarithm UTP, can support the 100MHz transmission rate, fully satisfies the voice and the terminal communication request.
The building's data level wiring unified use, VOD and voice using super five kinds of unshielded products, including wiring racks, twisted pair, sockets. The 6 class system can support the 250MHZ transmission rate completely, can support each kind of computer communication terminal, may support the 100Mbps Fast Ethernet and the Gigabit network data application, as well as the future 1000BASE-TX Gigabit Network application; The Super five class system can support the 100MHZ transmission rate completely, It can support all kinds of voice communication terminals and 100Mbps Fast Ethernet and Gigabit network data application applications.
Some conference rooms using fiber to desktop solutions, using four-core Wanchaodo mode fiber, the highest support for 10GHZ network transmission bandwidth to meet high-speed high-quality data transmission and future network development needs.
4. Transmission Medium Selection
In accordance with the requirements of the request from the hotel to meet the requirements of the integrated wiring system, I chose six types and super five type of unshielded wiring system for the hotel's integrated wiring system.
Six categories of products are completely component-level and channel-level products, its product performance is very large, and compatibility is very good, can resist on-site construction brought about by the performance reduction problem.
Super five type of unshielded twisted pair cable is cost-effective, in line with the current hotel wiring.
5. Detailed design
5.1 Workspace Subsystem
According to the technical requirements of the bidding documents, the integrated wiring system is deepened, and the information points of the integrated cabling system are divided into five types of network data points (including some information release reservation points), wireless AP Point, Voice point, Hotel VOD system, fiber to desktop information point. In the hotel, the room wiring according to the standard wiring, each single room and the Standard room request installs 3 communication ports, among them 1 double holes installs in the desk, uses for the internet and the telephone, 1 installs in the bedside cabinet side, 1 installs in the toilet, uses for the telephone use.
(1) Information module selection
The data information point and the voice information Point are both Super Five class and six class information modules.
All design panels can meet the requirements of shielding and unshielded module installation;
The cable connection is performed according to the TIA/EIA568B standard.
The panel is white and has a dust cover.
Each information outlet is a modular structure with convenient replacement and maintenance.
Data and voice information outlets use six types of unshielded information outlets. Features:
Insulating material: Impact resistant high flame retardant plastic to meet the standard requirements.
Meet all applications supported by the six standards to meet the next generation gigabit network applications.
Strength requirements: Resistance to fight strong impact.
Operating temperature range:-10-60 degrees.
Operating temperature range: 0-60 degrees.
Voice and VOD information outlets using Super Five type of unshielded information outlets.
Features:
Meet all applications supported by super five standards to meet the next generation gigabit network applications
Line mode: t568a or B
Strength requirements: Resistance against strong impact
Operating temperature range:-10-60 degrees
Operating temperature range: 0-60 degrees
Information Outlet Installation
All information exits are installed on the wall or on the ground near the employee's work area. The wall-face outlet is 30 cm from the ground. Information outlet to be equipped with power, information outlets and power outlets should be kept 20 centimeters, in order to avoid the electromagnetic interference of the power system, wiring cable with metal pipe laying.
As shown in the figure above. The wall installation method adopts Dustproof panel, and the spring door effectively prevents the module from accumulating ash and affecting the transmission rate.
In the management office, the control rooms, conference rooms, such as the installation of ground sockets. The control room uses the elevated electrostatic floor. It is recommended that the network floor (only 4 cm height) be used in large-bay office, and the modules, panels and cables can be easily moved to adapt to the future work environment adjustment.
5.2 Horizontal Cabling Subsystem
The horizontal subsystem consists of cables from each floor of the building to each working area. Realize data, graphics, image of electronic information exchange services, voice, fax communication transmission services and weak control signal transmission. The horizontal subsystem completes the star wiring connection between the distribution frame and the information point, consisting of cables between each layer wiring to each work area. To ensure high speed data transmission (up to 1000MHz), general office data, wireless AP horizontal cable are 6 types of unshielded twisted-pair, data level cable selection of six types of unshielded twisted-pair, voice and VOD horizontal cable selection of Super Five type of unshielded twisted-pair, so that the system has a very high reliability and flexibility. For users, only the corresponding jumper in the wiring between the jump again, you can easily realize all the data points between the interchange, so that the flexibility of the integrated wiring system is the most perfect embodiment.
Six type unshielded twisted pair
To deliver superior transmission performance. Its excellent design ensures that 4 pairs of compatible signals share the same cable without damaging the integrity of the data. This cable supports 155MbpsATM (asynchronous transfer mode). 100BaseT, Gigabit Ethernet transmission and support multi-channel ATM signal and other compatible signal transmission at the same time.
Features:
Star structure;
Support Gigabit Ethernet;
To maximize the transmission speed of the cable;
Provide additional bandwidth for future applications;
Operating temperature range:-20-60 degrees;
Conform to TIA/EIA568B standards.
Super Five type unshielded twisted pair
Ultra-five unshielded twisted-pair cable its excellent design ensures that 4 pairs of compatible signals share the same cable without damaging the integrity of the data. This cable supports 155MbpsATM (asynchronous transfer mode). 100BaseT, Gigabit Ethernet transmission and support multi-channel ATM signal and other compatible signal transmission at the same time.
This high speed 100 ohms high performance cable has good near-end crosstalk, guaranteeing multiple identical signal transmission and significantly reducing signal leakage.
Features:
Star structure;
Support Gigabit Ethernet;
To maximize the transmission speed of the cable;
Provide additional bandwidth for future applications;
Operating temperature range:-20-60 degrees;
Conforms to the Tia/eia 568B standard.
5.3 Management Subsystem
The management subsystem is the connecting point between the horizontal subsystem and the vertical subsystem. The management subsystem is made up of interconnection, interconnect wiring frame, information outlet type distribution frame and related jumper. Management points provide a means of connecting to other subsystems. The interconnection and interconnection allows you to locate or relocate communication lines to different parts of the building so that communication lines can be managed more easily.
In the first floor set up the hotel integrated wiring system main computer Center room, in order to more reasonable use of room space, improve the use of room. From the underground layer to the five-storey weak well inside the floor distribution lines (satellite), seven-storey distribution line between six to eight layers of wiring, 10-layer wiring between nine to 11 layers of wiring, 13-layer wiring between 12 to 14-layer wiring, 16-layer distribution between 15 to 17-layer wiring, 19-layer wiring between 18 to 20 layers of wiring, 22 floors 21 to 23, 24 to the top floor for a separate wiring, placed in the 24 layer. The design of management subsystem mainly includes management handover scheme, management connection hardware and management tag. The management handover scheme provides a way to connect the connecting equipment with the horizontal cable and the main line cable, thus making the integrated wiring and its connected application system equipment and devices constitute an organic whole, and provides the convenience for the line adjustment management.
12 Next Read full-text page Navigation 1. Hotel Integrated wiring design Scheme 12. Hotel Cabling Design 2 (author: 栾岚 Strong editor: Xu Jinyang)