Optimal smart building Wiring Design Scheme

When designing the smart building wiring scheme, we will encounter many problems. We need to make a detailed analysis based on the actual situation. Here, I would like to explain some smart building wiring design schemes, I hope this will help you solve your problem.

Intelligent Building (IB) is a product of the combination of modern construction technology and high-tech information technology. With the in-depth development of global social informatization and economic globalization, smart buildings have become a concrete symbol of comprehensive strength of various industries and an image of the competitive strength of major enterprise groups in the market, that is to say, enterprises with smart buildings have enhanced their competitive strength.

User Requirements

The building is a modern office and complex building, after the construction, it is required to have a first-class architecture and perfect service infrastructure, advanced and first-class automation equipment, modern office and communication facilities, and highly intelligent management and control, it is a group of cross-century highly intelligent and modern buildings. Therefore, we have the following requirements for the smart building Cabling Design:

◆ The PDS cabling system meets the current and long-term voice and data communication requirements of users;
◆ The Layout System of the PDS complies with international and domestic standards;
◆ A star topology is used for the layout of the PDS;
◆ The design of the tps' cabling system must support requirements for telephone, fax, and computer networks;
◆ The speed of the computer network is no less than 100 mbps, and the requirements of the gigabit network should be considered;
◆ The cabling system should support various types of computer and network products of different manufacturers;
◆ The information outlet of cabling system adopts standard RJ-45 outlet to support the transmission of voice, data, images and other multimedia;
◆ The cabling system complies with the requirements of the Integrated Business Data Network ISDN to connect to CHINAPAC and to other domestic and international networks through CHINAPAC;
◆ The system transmission line must be reached;
◆ The wiring system must adopt a modular structure;
◆ The cabling system requires that each work zone have a data point;
◆ The system must meet the enhanced design level;
◆ Based on the principle of openness, the cabling system supports both a centralized network and a C/S or B/S distributed network system;
◆ The system's information channels are stable and reliable;

I. Requirements for wiring room construction

1. indoor lighting shall not be less than 150Lx;
2. To ensure that the power supply may be used during installation, testing and future maintenance, it is recommended to install several power outlets with a capacity of no less than 300 W;
3. The temperature in the wiring room should be kept between 30%-50%;
4. In order to ensure the working performance of all kinds of sockets on the distribution frame is good, good ventilation is required in the wiring room and indoor dust-free.

Ii. design requirements between devices

According to the standard design requirements, the equipment room should be centrally set, and the following requirements should be met as much as possible:

1. Arrange the service elevator near the equipment room to ship heavy equipment;
2. The room temperature should be kept between 18 ℃ and 27 ℃, and the relative humidity should be kept between 30%-55%;
3. Maintain indoor dust-free or dust-less, well ventilated, with a brightness of at least 30 feet-candlelight;
4. install an appropriate fire-fighting system (for example, do not direct the sprinkler directly to electrical equipment if wet fire-fighting systems are used );
5. Use fire doors to fire firewalls and flame retardant paints for at least one hour;
6. Provide appropriate door locks. At least one window should be provided for safety exit;
7. Try to stay away from places where hazardous substances are stored and from electromagnetic interference sources (such as transmitters and motors );
8. The floor load capacity of the equipment room should be at least 500 KG/square meter;
9. According to the requirements of the structured cabling system, the walls of the cabling hardware must be covered with 3/4 inch (1.9) thick wood boards coated with flame retardant paint;
10. the minimum safe size of a typical wiring room in the PDS system is 120 × 150, and the standard ceiling height is 240, the door must be at least 2.1 high and 1 M wide and open outward. In the main, distribution line, it is best to have for the device Cabinet, the size of the device depends on the size of the device, generally made of wood or glass materials. Try to place the Cabinet close to the shaft in the equipment room. The air outlet should be installed above the Cabinet for ventilation.

Smart building Wiring Design Scheme

I. Design Principles

Advanced technology: fully considering the development trend of the information society and taking the technology ahead of schedule, the technologies and equipment used should ensure that the building will not lag behind several years after construction.

Maturity and Practicality: mature technologies and equipment are used to meet the future development needs of the building and ensure the durability and practicality of the equipment and main materials used.

Openness: Considering the development needs of the 21st century, the system and future devices will be interconnected and interoperable, making it easy to connect to the network.

Integration: fully considers the integration and information sharing of subsystems involved in the smart building weak current system, ensures the overall advancement and rationality of the subsystem, and adopts the centralized management and decentralized control mode, the overall structure should be compatible and scalable. It not only includes different types of advanced products of different manufacturers, but also facilitates upgrading and replacing, so that the entire Weak Current intelligent system can be developed and improved with the development of science and technology, it is constantly enriched, improved, improved, and improved.

Standardization and modularization: according to the requirements of the overall structure of the smart Weak Current System of the building, the subsystems should be standardized and modularized. The integrated system is an open system. The process of system integration is mainly to standardize interfaces and protocols of different system products so that they can achieve "interoperability ". The Contractor shall provide standard data interfaces, network interfaces, system and application software interfaces.

Ii. system features

◆ Convenience: You can use a mouse to operate complex systems.
◆ Safety: the equipment and technology used by the contractor should be safe, non-polluting, low-noise, and civilized in normal use.
◆ Reliability: the principle of reducing technical efficiency ensures the reliability and stability of the entire system.
◆ Comfort: With an exhausted way of thinking, we strive to design a safe, efficient, convenient, and comfortable living and working environment for the users of the building.
◆ Manageable and maintainability: the integrated system shall be able to monitor or control the main equipment and places of buildings, such as anti-virus, anti-bot, and anti-illegal intrusion.
◆ Efficiency: the integrated system should have:

1) agile response capability;
2) strong control capability and good implementation;
3) high network bandwidth and throughput.

Economy: Using the principle that economy denies everything, you should select a device with a higher cost-performance ratio and optimize the design.

Iii. Wiring Design

To meet the various information transmission requirements of the building and ensure the advanced nature, flexibility and economy of the cabling system, the cabling system consists of copper cables and optical fiber cables. The copper cabling system is designed as a hierarchical and star-based cabling system. Different jumper management methods can be used to support the first, second, and third-level network structures. All level-1 Network Data Source devices, voice source devices, and wiring system management devices are uniformly placed in the floor Network Data room, the second-level network devices and their corresponding cabling system management devices are managed between network devices or Weak Current Devices on each floor. Third-level network devices can be placed in working groups as needed. Such a network topology is easy to manage and meet all possible usage requirements.

The optical fiber cabling system manages the secondary network structure, that is, the active devices and management devices of the primary network data are placed in the Central Data Center of the network. Each floor has a secondary network device, which is vertically connected through optical fiber cables.

◆ Set up an MDF vertical distribution frame in the host machine room to manage the speech and data points of the entire building;
◆ According to the architectural design, the building is equipped with Weak Current wells, and distribution lines are arranged on each floor in the weak current well, rack, distribution board, and other devices are placed inside to manage vertical and horizontal cables;
◆ Vertical sub-system, which connects devices and management devices with a star structure;
◆ Sub-systems between devices, including switches, network devices, distribution cabinets, and other devices;
◆ The inter-management subsystem is located in the telecommunications room at each layer. It is used to manage horizontal cabling at each layer and connect corresponding network devices;
◆ Horizontal subsystem, used to connect the work zone and management subsystem;
◆ The workspace subsystem is used to connect users' terminal devices. It must comply with the ISDN standard and can meet the high-speed data transmission standard.

Iv. Copper Cabling System Design Scheme

The copper cabling system consists of the workspace subsystem, horizontal cabling subsystem, vertical trunk subsystem, management subsystem, and inter-device subsystem.

A. workspace Subsystem

The workspace subsystem consists of information sockets, connection sockets, and connections of terminal devices installed in various office areas. Here we choose SHIP series M245 over 5 category RJ45 socket modules and A160-2 series panel.

According to the usage requirements, the installation method of copper information points is wall installation and ground installation. Wall installation method: Generally, the installation height of the wall information point is 300mm at the bottom of the box, and the installation height of the wireless network AP information point is 2500mm at the bottom of the box. Ground Installation Method: Set up ground sockets in the big open room office, various control data centers, and meeting rooms.

B. Horizontal cabling Subsystem

The horizontal wiring subsystem extends the trunk subsystem cable to the user's work zone. The system connects an information outlet from each sub-wiring room to each work zone. In order to ensure high-speed data transmission, considering that it is compatible with cat5e information port, all horizontal wiring adopts SHIPD135-G cat5e unshielded cable.

C. Vertical trunk Subsystem

The trunk cable subsystem is composed of cables connecting the main device and connecting sub-devices. Its function is to connect the main distribution frame with each sub-distribution frame. Here, we use 62.5/125um quad-core Multimode Optical Fiber as needed. The data trunk system adopts four-core outdoor (buried) multi-mode optical fiber (D174-4) as the transmission medium of data communication) multi-mode optical fiber cables to various floor wiring rooms.

D. Management Subsystem

The building is equipped with a distribution line in each layer (or two layers) of telecommunication wells. The system management adopts multi-point management and hierarchical partition management mode. The IDF between the distribution line connects the vertical trunk line and the horizontal trunk line. On the copper distribution board used between the two distribution lines, we chose the cat5e IDC module. The optical fiber distribution frame adopts the optical fiber distribution board, and the two are mounted together in the cabinet. The management subsystem is composed of a communication and an Internet distribution frame. The management point provides a means to connect to other subsystems. Communication and interconnection allow you to locate or relocate communication lines to different parts of a building to facilitate management of communication lines. This allows you to easily plug and unplug mobile devices. Jumper we use cat5e express jumper, optical fiber connector uses ST type.

E. sub-systems between devices

The device subsystem (Main Wiring room) consists of cables, connectors, and supporting hardware in the equipment room. It connects various devices in the public system. For example, you can connect a trunk line and a wiring intersection to a public system device (such as PABX. Data devices and voice devices can be separated.

In the wiring room, there should be at least two 220V Voltage and Current 10A single-phase three-level power outlets dedicated for the system, meeting general office lighting requirements. If network equipment needs to be placed in the wiring room, the power supply needs of the equipment should also be placed in the wiring room, and there should be another 20 a dedicated line with four AC double-row sockets. This line should not be associated with other large devices, and it is best to connect to the UPS first to ensure the power supply and power quality of the equipment.

Device Selection: Data main distribution frame MDF is located in the network center data center, serves as the IDF aggregation layer access point, connects to IDF on each floor, the data main distribution frame uses a 24-port or 48-port modular RJ45 plug-in distribution frame to connect horizontal cables on the floor of the region. The optical fiber main distribution frame uses a 24-port Optical Fiber Interconnection unit to connect data backbone optical cables from various floors. All distribution frames are mounted on the 42a7 cabinet.

1. Approach shielded Wiring
2. Analysis of Intelligent Management in the Integrated Wiring System
3. How to optimize Cabling System Management
4. Thoughts on Innovative Development of Integrated Wiring Engineering
5. How to Choose cables in the Integrated Wiring System