What are the measures taken in the TR to meet Mechanically Active Materials requirements


To meet these requirements, take the following measures in the TR:

Use dustproof materials on the ground, wall, and ceiling of the TR.

Install screens for outdoor doors and windows, and use dustproof materials for outer windows.

Clean the TR, especially the air filters once every three months.

Wear shoe covers and ESD clothing before entering the TR.

Other related questions:
What's Mechanically Active Materials Environment Requirements for the Proper Running of the server
The TR should be free from explosive, conductive, magnetism-permeable, and corrosive dust.the requirements for concentration of the mechanically active materials in the TR: Mechanically Active Materials Unit Concentration Sand mg/m3 �?30 Suspending dust mg/m3 �?0.2 Dust deposit mg/(m2h) �?1.5

What's the measure to meet the electromagnetic compatibility requirements
To meet the previous requirements, take the following measures: Locate the TR away from transformers, high-voltage wires, and high-current equipment, for example, at least 20 meters away from the AC transformer with the capacity greater than 10 kVA and at least 50 meters away from high-voltage wires. Locate the TR away from high-power broadcasting transmitter, for example, at least 100 meters away from the broadcasting transmitter with the power greater than 1500 W. If there is a mobile communication transmitter in the TR building, its interference effect must comply with local and national standards and regulations. If necessary, take measures to screen and isolate the interference. Do not use portable wireless devices when you are near the server.

What's the measure to meet ESD Protection Requirements
To meet ESD protection requirements, take the following measures: Popularize the importance of ESD prevention. Wear ESD shoes and ESD clothing before entering the TR. Use ESD tools such as ESD wrist straps, ESD tweezers, and extraction tools when operating on the server. Lay a raised floor in the TR. Ground all conducting materials in the TR, including computers, and set up ESD worktables. Keep non-ESD materials (such as common bags, foams, and rubbers) at least 30 centimeters away from ESD-sensitive components. Ground the server properly. Although laying the raised floor covered with semiconductive materials, use copper foil for grounding at a number of points on the floor (the copper foil should be placed between the concrete floor and the semiconductive floor and should be connected to a ground cable). Take dust prevention measures. Dust or other particles in the TR may cause poor connections between connectors or between metal connecting points. Maintain proper humidity. Too high humidity may make metal components rusty, while too low humidity may induce static electricity.

What's Grounding Requirements for the TR Building
It is recommended that reinforced concrete be applied to the construction of the TR. The TR should be equipped with surge protectors, such as lightning rods. The surge protection grounding of the TR should share the same grounding body as the protection grounding of the TR. The grounding resistance of the TR or communication office should not be greater than 10 ohms and should comply with local and national industry standards. The grounding resistance should be measured periodically to ensure effective grounding.

What measures can be taken against multipath interference
The following technologies can be used against multipath interference: smart antenna, multiple-input and multiple-output (MIMO) beamforming, MIMO space-time block coding (STBC), and MIMO maximal ratio combing (MRC).

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