How to judge the grade of industrial Ethernet switches

Industrial Switch, also known as industrial Ethernet switch, is an Ethernet switch equipment used in the field of industrial control. With the rapid development of information construction in electric power, metallurgy, petrochemical, environmental protection, transportation, construction and other industries, the demand for industrial switches is also increasing. Then, we need to understand the industrial switch, so as to have some basic ability to judge the quality of industrial switch. Next, some easy to understand methods and methods for judging the grade of industrial switches are listed:

1. Shell: the shell of high-quality industrial switch is generally aluminum alloy or flame-retardant plastic, but generally iron shell will not be used. The problem with iron shells is that they will rust over time. Although the rust of the iron shell can be prevented by painting and plastic spraying, the cutting edge of the iron sheet can not be covered by painting and plastic spraying or the adhesion is not firm enough. Rust starts from the knife edge of the iron shell. Once the rust enters the equipment, the industrial switch with high requirements for service life and stability is fatal; Therefore, from this point of view, the lighter the industrial switch, the better, rather than the heavier the general knowledge, the more texture.

2. Screws: high quality industrial switches generally use stainless steel or stainless iron Torx screws instead of ordinary cross screws. The reason why the Torx screw should be used is obvious, so I won't describe it here;

3. Circuit board: high quality industrial switches generally use gold-plated circuit boards instead of tinned ones. Although the cost has increased a lot, the quality, stability and consistency of the gold plated circuit board are much higher.

4. Electrolytic capacitor: at present, electrolytic capacitor is the most vulnerable component in the general components of electronic products. Where high-quality industrial switches can avoid electrolytic capacitors, tantalum capacitors and polymer capacitors will be used; The high-voltage part of electrolytic capacitors that cannot be avoided generally adopts Japanese, American and European electrolytic capacitors, and Taiwan series or domestic electrolytic capacitors will not be used.

5. Fan: limited by its own transmission, the fan is the main component that hinders the service life and stability of industrial switch. High quality industrial switches generally avoid the use of fans and use natural heat dissipation.

6. Main switch chip: Broadcom switches are generally high-end, followed by American brands such as MICROSEMI and Marvell. Then there are Taiwan's Realtek, icplus and so on. 

7. Software: it is enough to read the command line manual of the switch and see the web management interface of the switch without looking at the functions. Just pay attention to whether the manual is neat, whether there are typos on the web and whether English is fluent.

The quality of industrial switches that can achieve the above seven points will not be very poor.