Uncover the difference between "quasi industrial grade" and industrial grade switches
In recent years, there have been many "quasi industrial grade" switches on the market, but strictly speaking, there is no precise concept for industrial grade, let alone "quasi industrial grade". Therefore, many manufacturers have taken advantage of this loophole, claiming to be "quasi industrial grade" if they touch or have certain indicators below these standards! And the price is so low that it's scary! Such communication products pose significant security risks in industrial sites, so how do we choose a true industrial switch? We will analyze from the following aspects:
1、 Components
Chips determine the price and performance of switches. Most chips used by industrial grade brands are Broadcom, and other components are also selected according to industrial grade standards. However, the majority of "quasi industrial grade" chips use relatively low-end chip solutions, which cannot guarantee quality.
2、 Working power supply
The industrial grade switch adopts a dual power redundancy design, providing power anti reverse protection and overcurrent, overvoltage, and surge protection, with high reliability. Some "quasi industrial" products on the market promote dual redundant power supply designs, but when disassembled, it is actually a single power input, which can easily cause communication interruption when the power supply is damaged.
3、 Working temperature
The working temperature of industrial grade switches is generally "-40 ℃~85 ℃"; The "quasi industrial grade" ranges from "-30 ℃ to 70 ℃", which may seem similar in numbers. However, if "quasi industrial grade" is used as an industrial grade in some exceptionally harsh industrial environments, equipment may experience frequent network failures due to inability to withstand extreme weather conditions and downtime.
4、 Protection level
Industrial grade switches all have IP42 protection, EMC4 level, and 4000V lightning protection standards, while "quasi industrial grade" products have significant problems in dust prevention, electromagnetic interference, and other aspects.
5、 Service life
The service life of industrial grade switches is generally over 10 years, with strong stability, while "quasi industrial grade" switches have little guarantee and may malfunction within a few months.
From the above comparison, it can be seen that the performance of "quasi industrial grade" switches cannot match that of industrial grade, but "quasi industrial grade" products still wear the guise of industrial grade and are applied in security monitoring, power, energy, rail transit and other projects. From a cost perspective, this can be understood but cannot be agreed, as we cannot predict the stability and lifespan of "quasi industrial grade" products. However, applying "quasi industrial grade" as an industrial grade to harsh industrial environments can result in incalculable maintenance costs and repetitive construction costs in the later stages of the project.
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