We have all seen building access control systems that employ card readers. But, what you might not know is that there are different types of technologies that drive these machines. Today, we will take a look at two of the most common business security systems found in Nashville: RFID and NFC.
Radio Frequency Identification (RFID)
If you ever heard someone say that they have to grab their key card, they are likely talking about an RFID chip system. Radiofrequency identification is a long-established technology that first arrived on the scene in the mid-1990s. These utilize radiofrequency signals to communicate with a card reader. Most business security systems in Nashville still utilize RFID systems, which can work either actively or passively on three different wavelengths.
Near Field Communication (NFC)
You may have seen the NFC option on your phone (if not, swipe down from an android, and you will). Near field communication is often used to transmit data from one smartphone to another. However, this more sophisticated technology, which was developed in the mid-2000s, has also gained popularity in the business security systems industry.
NFC technology is similar to RFID in that it uses radio signals to send and receive information. The primary difference is that NFC access control systems do not require a physical key card. Instead, a signal is sent from a smartphone to the key reader. If you’ve stayed at Opryland Hotel within the past few years, you have used NFC access technology.
Which Is Better?
There is no right or wrong answer to this question, and the answer will come down to a business owner’s budget and needs. They each have pros and cons as well as strengths and weaknesses. Both NFC and RFID can be influenced by electromagnetic interference and malicious radio signals. They are both susceptible to cloning; however, having a fully functional business security system in place can help alleviate some of these concerns.
NFC signals can only be used within about four inches from the reader. By contrast, RFID can grant access from a few feet. NCF authorization is also easy to grant since they do not rely on a physical key card in most circumstances. Both access control systems can be controlled and access revoked or limited at any time.
Clear Link Systems is proud to provide access control and business security systems to businesses throughout the Nashville area. The experts here say that each business owner should consider their needs and budget before making a decision on the type of access control they want for their building.