Cheat Sheet: HDMI-CEC
Since its introduction to the consumer electronics industry, the HDMI cable has been at the center of several controversies. Some parties see it as a valuable tool in their arsenal of accessories. Others depend on it for its copy protection mechanisms, while others berate the innocent little cable for it’s incompatibilities and inadequacies. Dealerscope has covered the HDMI cable many times, but we’re not done yet. Here we look at one small aspect of the specification that could either simplify or complicate your TV sales, depending on how you look at it.
What is HDMI-CEC?
CEC stands for consumer electronics control. Essentially HDMI-CEC-enabled gear, when connected by an HDMI cable, can be controlled through one remote without any programming or setup required. It is an optional part of the HDMI specification. Up to 10 connected devices, including the display, can be controlled via HDMI. CEC is a two-way communication system in which a device sends back an acknowledgement that it received a command, assuring that devices are in their proper state. Some aspects of the technology actually originated with Europe’s SCARP interface.