To choose appropriate cabinet, let’s start with quality at first. The quality of manufacturing technology has great influence to the quality of cabinet. The cabinet with poor quality will have many quality problems, such as the steel plate edge has burr, sharp, and other bad appearance, and the exposed corners have not been folded processing, it is easy to scratch the worker’s hands. In addition, each insert card slot location of the cabinet with good quality is relatively accurate, will not have the problems, such as accessories can not be assembled or dislocation.So, how to choose the good quality cabinet? Please refer to below points. 1. Material.The material of machine have several types. In general, sheet metal case is the choice of most people. When choosing this kind of case, the steel plate must be thick. It is only the solid shell that can provide protection for the board card, power supply and storage equipment, but also can prevent pressure, shock, dust, and also can play the role of preventing electromagnetic interference and radiation, shielding electromagnetic radiation. In addition, sheet metal cabinet also provides easy to use indicator light of panel switch, more convenient for microcomputer operation and microcomputer operation monitoring.2. Configuration.Because the rear of the equipment will generate a lot of heat, the cabinet baffles chose should be more, but also have cooling holes, meanwhile the side wall fan should be installed in the rear wall of the cabinet. There should also be an iron lining to hold the cable in order to prevent damage to the cable.3. Accessories.Since the installation material includes network cables, telecommunications cables, and power cables, it is necessary to purchase hook-and-loop or toothed straps to effectively secure the cables in the cabinet in an orderly manner. If cabinet contains cable management module to make cable can be fixed directly in perpendicular mounting rail, it is better. 4. Function.Think about safety.5.Heat dissipation.At first, equipment heat should be estimated. In general, two to four fans on the top will work, however the more the better.
With the intensification of competition in the communication industry, in order to reduce the investment cost and operation cost, more and more operators choose outdoor communication equipment cabinets. The heat dissipation of outdoor communication equipment cabinets has various methods. Currently the common methods include natural heat dissipation, fan heat dissipation, heat exchanger dissipation and cabinet air conditioning. How to choose the heat dissipation mode of outdoor cabinets and minimize the influence to the cabinet in high and low temperature environment, which is a very important issue for operators.1. Fan Heat Dissipation After testing the internal temperature of the outdoor cabinet (the external environment temperature is 35℃), it can be seen from the results that the natural heat dissipation without fans leads to the high internal temperature of the system caused by the solar radiation heat and poor heat dissipation in closed cabinet. The average temperature is higher than the ambient temperature by 10℃.When fans are used for ventilation, the air temperature inside decreases, and the average temperature is about 5℃ higher than the ambient temperature.2. Cabinet Air Conditioner Testing internal temperature of battery cabinet (external environment temperature 50℃) dissipated by conditioner of outdoor cabinet, it can been seen from the results, when the environmental temperature is 50℃, the average temperature of battery surface is about 35℃, which can achieve reduction of about 15℃. It has a better cooling effect.3. Heat Exchanger Dissipation It has the same effect as fan heat dissipation.Heat dissipation by heat exchanger and air conditioner, the cabinet has a good sealing effect, and the protection level can reach IP55.In the case of bad external environment, heat exchanger or air conditioner heat dissipation mode should be adopted.