Blog Information

• منشور من طرف : Shree Light
• نشر على : Feb 14, 2022
• الآراء : 189
• الفئة : تقنية
• وصف : Cabling systems are the fundamental foundation for the successful delivery of applications within the Data Center. Although structured cabling represents a minimal percentage of the total cost of the data center, it is one of the components that usually has the most impact on network performance.

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• Cabling systems are the fundamental foundation for the successful delivery of applications within the Data Center. Although structured cabling represents a minimal percentage of the total cost of the data center, it is one of the components that usually has the most impact on network performance.
  STRUCTURED CABLING
  Structured cabling is known as the system of cables, connectors, conduits and devices that allow establishing a telecommunications infrastructure in a building. When we talk about structured cabling for Data Center we must know very well the standards for its use, since it is different from the one installed in a communications room.
  The main elements of a structured cabling system are:
  Horizontal cabling
  It is the portion of the telecommunications cabling system that extends from the work area to the telecommunications room or vice versa.
  The costs of materials, labor and work interruption when making changes to horizontal cabling can be very high. To avoid this, the horizontal wiring distribution must be designed to facilitate maintenance and relocation of work areas. The designer should also consider incorporating other building information systems (eg, cable television, environmental control, security, audio, alarms, and sound) when selecting and designing horizontal cabling.
  The EIA / TIA 568A standard makes the following recommendations regarding the horizontal cabling topology:
  • Horizontal cabling must follow a star topology.
  • Each telecommunications outlet / connector in the work area must be connected to an interconnect in the telecommunications room.
  Vertical cabling
  Also known as a backbone, this system provides interconnections between building service entrance rooms, equipment rooms, and telecommunications rooms. It also includes the vertical connection between floors in multi-story buildings. To define the data backbone, it is necessary to take into account the physical layout of the equipment.
  The EIA / TIA 568 standard provides for the location of the vertical to horizontal cable transmission, and the location of the necessary devices to achieve it, in separate rooms with a door for this purpose, located at least one per floor, called telecommunications cabinets.
  Service entrance room
  This room is used for cables, connection accessories, protection devices, among other equipment, to connect the building to external services. It may contain the demarcation point and offers electrical protection established by applicable electrical codes.
  Its design must be carried out in compliance with the EIA / TIA-569-A standard. The installation requirements are:
  • UTP Cable Handling Precautions
  • Avoid tension in the cable
  • Cables should not be routed in tight bundles
  • Use appropriate cable routes and accessories 100 ohms UTP and STP
  • Do not turn with an angle less than 90.
  Grounding system
  The grounding and bridging system established in the ANSI / TIA / EIA-607 standard is an important component of any modern structured cabling system. The cabinet must have a ground connection, connected to the general ground of the electrical installation, to make the connections of all equipment. Safety ground cables will be grounded underground.
  Attenuation
  The loss of signal due to the distance from one point to another is known as attenuation. This causes errors and poor performance, having to retransmit the signal. To solve this, repeaters or amplifiers are used that extend the distances of the network beyond the limitations of the cable. Attenuation is measured by devices that inject a test signal at one end of the cable and measure it at the other end.
  Electrical capacity
  It refers to the unit of measurement of the energy stored in a cable. Capacitance can distort the signal in the cable, as the longer the cable and the thinner the insulation thickness, the greater the capacitance that results in distortion.
  Cable testers can measure the capacity of this pair to determine if the cable has been threaded or stretched.
  7 WIRING TIPS TO KEEP YOUR DATA CENTER MANAGEABLE
  The Data Center is the heart that pumps the blood of your company, without it, everything stops. An improper cabling system can become a terrible disease for your Data Center. With a little planning and applying best practices, you can avoid major problems in managing your cabling:
  1. Measure twice
  It is important to measure the cables well to avoid creating a spaghetti of cables and wasting material that will cause you to lose significant sums of money. By measuring twice, you can save both time and money.
  2. Always label
  Each cable must have a label on both ends. Not labeling will only create more work for you by not knowing what each wire is or where it belongs. If you can establish a consistent labeling system, you will save yourself a lot of trouble.
  3. Stick to the standards
  International cabling standards set the standard for maintaining high levels of cabling performance and thus protecting the end user. These standards allow to standardize methodologies and types of connection, to avoid compatibility problems.
  4. Use colors to identify cable types
  Colors are a quick and easy identification method. Color coding simplifies activities and now time to trace cables.
  5. Don't skip the tests
  Use a quality tester to always test your cables when finishing their installation. This simple step will save you extra work in the end.
  6. Keep cables cool
  If you have a lot of cables, heating them up can cause a disaster. Make sure your data center design allows you to keep all your server and networking racks at the right temperature.
  7. Avoid cable spaghetti
  With a little care, planning, and best practices, such as a labeling or color-coding method, you can avoid a spaghetti of cables that can eventually lead to problems in your data center.
  Floor Racks and Cable Organizers
  INDUSTRIAL LED LIGHTING