An analysis of the overall layout of cabling system

The whole planning of data center cabling system involves the content of information resource planning in it planning first, IT system positioning, IT system scale, IT system architecture, IT system configuration is the precondition and basis of data center construction. The site and space planning of the data center is based on the size and development of IT system and can provide the site and space of the building, the whole plan determines the scale of the site and the structure of the wiring system, and the space and the plane plan determine the separation of the site and the layout of the equipment.

The whole plan of the data center wiring system, first of all must understand the wiring system in the data center function. Cabling systems need to provide reliable connectivity to key it devices in the data center, need to provide transmission bandwidth that adapts to network operations, and need to support the uninterrupted operation of the network 7x24 hours. At the same time, there are high requirements for security, availability, and flexibility. In addition, the need for intuitive, effective and convenient network and wiring management methods and tools.

Data center Cabling System of the overall planning, but also to understand the data center cabling system Engineering Construction Features:

The information points in the room are dense;

Network data transmission is the main;

Wide range of copper fiber types;

The transmission link is stable and reliable;

change equipment connection frequently;

Dynamic Intelligent link management. Wait a minute.

Data center Cabling System of the overall planning, but also pay attention to the data center cabling system involved in the technology and product development trends:

End-to-end overall solution;

High-speed network-million mega equipment;

High-density pre-end device products;

Shielding wiring to resist electromagnetic interference;

Low Smoke halogen free/fire retardant cable;

Intelligent maintenance of electronic wiring frame;

dynamic management of online monitoring. Wait a minute.

2005 United States "TIA-942 data center telecommunications Infrastructure Standards" and China C. Team's newly issued "Data Center cabling system design and construction technology white paper." It provides many useful technical suggestions and engineering guidance for the overall planning of the data center cabling system. Its hope and suggestion data Center project builders and Planning designers, in the data center of the facilities planning, cabling structure and network design, the data center can be a comprehensive understanding of the construction requirements, but also want to be able to consider the relationship between the building and the role. At the same time, it provides several common cabling system structure and the whole layout framework of infrastructure for data communication access and connection of data center, in order to comprehensively consider and solve the coordination of construction, electrical, electromechanical, communication and security in the field planning and layout, involving information security, Cabinet density and ease of management between the appropriate and balanced issues.

The overall planning of the data center cabling system requires a full understanding and mastery of the TIA-942 standard and the C · Team Technology white Paper, the data center cabling system features and related requirements. More Wonderful content: http://www.bianceng.cn/Network/zhbx/

In the TIA-942 standard, the main concerns are expressed:

Space Division and connection of the site, that is, the four-layer relationship between data center and building space;

Site availability classification level, namely TIERITOTIERIV grade four classification standard;

The topological structure of structured wiring, namely three kinds of topological structure: basic type, simplification type, distributing type;

The comprehensive consideration of site environment factors, i.e. site planning, architectural design, environment designing, electrical design, etc.

According to the TIA-942 Standard and the C · Team technical white Paper, the building space of the data center includes:

Computer room/main engine room;

The communication room within the data center;

Office of maintenance personnel;

access to the break-in;

Electromechanical equipment room;

Operation and Supervision Center;

Store and load the break-in.

In a data center, the typical computer room/host room space area is divided into:

Total wiring Area (MDA), placing routers, backbone cables, Lan/san switches, PBX switchboard, wiring racks;

Horizontal wiring Area (HDA), the placement of LAN/SAN/KVM switches, wiring racks;

Regional wiring Area (ZDA), placement of had and EDA in the middle of the extension of the area over the Line box/integration point;

Equipment wiring Area (EDA), placement rack/cabinet/equipment, outlet box.

In addition, the computer room/host room and Access Room (ER) directly related to the entry into the network operation of the access equipment.

Cable for the data center cabling system is:

Horizontal cables provide horizontal cross connections of device wiring area (EDA), horizontal wiring area (hdas), regional wiring area (ZDA).

Backbone cables provide a backbone cross connection between the total wiring area (MDA), the horizontal wiring area (Hdas), the Access Room (ER), and the Telecommunications Room (TR).

Recommended wiring Transmission media: 100OHM4-PAIRCAT6 twisted-pair (grade above), laser-optimized 50/125µm multimode fiber Om1/om3;75ohm coaxial cable.

The topology of the three cabling systems in the data center is:

Data center cabling system overall planning and design of the general steps: