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It’s no secret that HDMI is the current industry-standard for audio/video interface, and it has a ubiquitous presence on almost every media device manufactured in the last fifteen years. However, not a lot of people are aware that HDMI cables are capable of bidirectional Ethernet communication at relatively high speeds since 2009. Think of this example. Say you have a soundbar hooked up to your TV. Using CEC, you can use the remote control for your TV to manage the sound coming from your soundbar. The TV does this by transferring that information across the HDMI cable to your soundbar. You need to make sure your devices are CEC compatible to make sure they will work in this fashion. Conclusion If you have an HEC compatible device, it will most likely self-describe somewhere in the user’s manual. Unfortunately, this technology is rarely implemented, and you would be hard-pressed to find a device that uses HEC. Through our research, we were unable to find any modern consumer device that uses HEC. Many of these pins are connected to twisting pairs of wires that are wrapped in a protective layer. These are called shielded twisted pairs. What HDMI with ethernet cables do is use wires that are usually designated as straight-through wires to be twisted pairs like the others. This allows for the internet data to be transmitted over these pairs.
HDMI Cable with Ethernet: Everything you Need to Know - Gek Buzz HDMI Cable with Ethernet: Everything you Need to Know - Gek Buzz
So, unfortunately, ethernet over HDMI is pretty much dead because it’s too complicated to build equipment that supports it, and the alternatives are much better. However, the channel is being repurposed in a couple of ways which we’ll talk about below. HDMI Audio Return Channel (ARC) and HEC: We have learned a lot about HDMI with ethernet. It was designed to help manage systems without the need for a multitude of ethernet connections. While the idea was sound, when it came to real-world applications, there just wasn’t enough to make it financially feasible to design compatible devices. For most devices, a WiFi connection is just more convenient. The ethernet channel built into compatible HDMI cables can transfer data between two connected devices. This allows them to share the wired connection. To better understand how this works, we need to open up an HDMI cable and see what’s inside. An HDMI cable has 19 pins that it uses to transfer all kinds of data. HDMI supports standard, enhanced, or high-definition video plus standard to multi-channel surround-sound audio.PREMIUM HDMI CABLE CERTIFICATION PROGRAM Premium High Speed HDMI ® cables are tested to ensure quality for feature-rich 4K/Ultra-HD content
HDMI ARC and HDMI eARC: everything you need to know HDMI ARC and HDMI eARC: everything you need to know
It is true that you can find ethernet being used in home applications, but for the most part, all devices use WiFi. This is one of the main hurdles HEC had to overcome and, for the most part, didn’t. There is one area where HEC was implemented, although in a much different way. This is the reason we see ethernet included in most HDMI cables produced today. Best Uses of HDMI Ethernet Channel/HEC Connectivity Since 2009, HDMI cables have builtin ethernet capabilities, but not many people are using HDMI cables to connect to the internet. There aren’t even many devices that support the internet over HDMI. Why is that? Is it more efficient than ethernet cables or is it a useless feature? Should you buy an HDMI cable with ethernet? On top of that, being limited by the 100 Mbit/s bandwidth and the maximum 8-meter cable length didn’t really help the case. It would have certainly been lunacy for the manufacturers to consider HEC over a dedicated Ethernet port or Wi-Fi card, as they reliably delivered better networking speeds without many sacrifices.An HDMI to Ethernet converter lets you connect a standard HDMI cable on one end and a Cat5 / Cat6 network cable on the other end, giving you audio/video output over longer distances without any quality loss. However, it’s a niche use-case for the average consumer and costs a lot of money to set up.
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