5 tips for choosing quality converter products

Choosing quality converter products is crucial for a reliable data network, especially when you are interfacing the converters with your mission-critical and expensive devices such as computers, PLC, RTU, SCADA, and HMI - whether in the field, server room, factory, control room, or fire command center. Furthermore, an RS485 / RS422 network often consists of many different components, such as cables, connectors, converters, master and slave devices, and power supply, and because this type of network is normally used over a long distance in an electrically noisy environment, noises, reflections, and data errors might occur. Given the fact that there are too many possibilities and that the components are often not at the same location, it could become extremely difficult to identify the problems if a system becomes unstable. A reliable data network starts with a proper system design and choices of right partners and products, especially the components that sit in between the devices, such as converters.

Here are some tips for choosing the quality converter products.

Tip #1 Industrial Grade vs. Commercial Grade?

Just as there are many differences between industrial- and commercial-grade computers, the industrial- and commercial-grade converters differ in many ways, such as the level of circuit protection, temperature range and noise tolerance. Most importantly, true industrial-grade converters require rugged components and reliability-engineering designs for environmental factors, reliability, and durability; therefore, they are much more durable than commercial-grade converters, and the quality is much higher. Industrial-grade converters are designed to interface with mission-critical equipment, such as computers, PLC, SCADA and HMI - whether in the field, server room, factory, control room, or fire command center.

Tip #2: Certifying Labs


The market includes many certifying laboratories. From small-scale to large-scale and non-reputable to reputable, every certifying laboratory serves its own customer base. CommFront chooses SGS and TUV as its certifying partners for the following reasons:

  1. Quality, Safety, and Compatibility

    SGS / TUV set strict rules and regulations for ISO 9001-certified companies, and they conduct yearly audits for the quality control systems applied to the companies. For product safety and compatibility, SGS / TUV conduct the complicated and thorough EMC/EMI tests required for the safety certifications, which include radiation, emissions, immunity and other related tests, to ensure that our products are safe to humans and are safe and compatible to the devices to which they are interfaced.

  2. Meticulous and Reputable

    SGS / TUV are the most meticulous and reputable testing labs in the industry, the testing and certifying time ranges from 3 to 6 months, compared with 3 days of certifying time required by some other non-reputable labs. 

  3. Globally Recognized

    SGS is the world's leading inspection, verification, testing, and certification company. Recognized as the global benchmark for quality and integrity, SGS is a Nationally Recognized Testing Laboratory (NRTL) in North America (approved by OSHA - Occupational Safety & Health Administration), and an Notified Body in European Union. More about SGS »

    TUV SUD - headquartered in Germany, is a Nationally Recognized Testing Laboratory (NRTL) in North America (approved by OSHA - Occupational Safety & Health Administration), and an Notified Body in European Union. It has more than 16,000 staffs and over 600 branches around the world. More about TUV »

Tip #3: Quality Management System

ISO 9001 system is an internationally-recognized quality management system and it has different versions such as ISO 9001:1987, ISO 9001:2000, ISO 9001:2008, and the current version is ISO 9001:2015. ISO 9001 sets strict rules and regulations for organizations to ensure that they meet the needs of customers and the industry, as well as meeting statutory and regulatory requirements related to the product. Being a trusted ISO 9001:2015-certified brand (strictly certified by SGS / UKAS, cert no. SG12/04213, click here to download a copy of the certificate), CommFront has developed a strict quality assurance system for its products and customer satisfaction. We are proud to provide our credentials to help our customers make a well-informed decision when choosing a long-term business partner.

Tip #4: Product Safety and Compliances

Safety is an important aspect of the product quality; it comes with the certificates of CE, FCC, and nowadays, RoHS (Restriction of Hazardous Substances Directive). The purposes of the CE and/or FCC certificates are to make sure that the products do not generate too much electrical noises and to withstand a certain level of ambient electrical noises without causing the products to malfunction. FCC testing consists of conducted emissions and radiated emissions, while CE covers a wider testing scope, including the conducted emissions, radiated emissions, harmonic current emissions, voltage fluctuation, and the immunity, such as electrostatic discharge immunity, RF radiated immunity, and conducted disturbance immunity, etc. The RoHS directive restricts the levels of lead, mercury, cadmium and other hazardous materials that products may contain. CommFront products are CE- and/or FCC-certified, and the products are manufactured according to the ISO 9001:2015 and the RoHS directive 2011/95/EU standards. See our conformity page »

Tip #5: Product Warranty and Guarantee

High-quality products normally come with a long product warranty period, and the product failure rate is much less than those of the lower-quality products. In CommFront, we provide a 5-year replacement warranty. Within 5 years from the time of purchase ("Warranty Period"), if a rare malfunction should occur, CommFront will, without charge, repair or provide a replacement for any product that proves to be defective in materials or workmanship. In addition, you may return products sold by us within 30 days of purchase for a full refund, and we do not charge re-stocking fees.