What is HDMI-CEC and how to use it?

CEC stands for Consumer Electronics Control as a feature of HDMI intended to control the HDMI connected devices by the use of only one remote controller; so that individual CEC-enabled devices can command and control each other without the user intervention, for up to 15 devices.

          For example, a television set remote controller can also control a set-top box and a DVD player. That was defined in HDMI specification 1.0 and updated in HDMI 1.2, HDMI 1.2a, and HDMI 1.3a as well. USB to CEC adapters exist that permits a computer to control CEC-enabled devices.

Features of CEC

1. One-Touch Play:

permits devises to switch the TV to use it as the active source when playback starts.

2. System Standby:

enable the users to switch multiple devices to standby mode with the click of just one button.

3. Preset Transfer:

it transfers the tuner channel setup to another TV set.

4. One-Touch Record:

it permits the users to record whatever is currently being shown on the HDTV screen on a selected recording device.

5. Timer Programming:

it permits the users to use the electronic program guides built into the many HDTVs and set-top boxes to set up the timer in recording devices like PVRs and DVRs.

6. System Information:

it verifies all the components for bus addresses and configuration.

7. Deck Control:

it permits a component to interrogate and control the operation of a playback component.

8. Tuner Control:

it permits a component to control the tuner of another component

9. OSD Display:

OSD display uses the on-screen display of the TV set to display text.

10. Device Menu Control:

it permits a component to control another component’s menu system by passing through the user interface commands.

11. Routing Control:

it controls the switching of signal sources.

12. Remote Control Pass-Through:

permits the remote control commands to be passed through to the other devices within the system.

13. Device OSD Name Transfer:

it transfers the preferred device named to the TV set.

14. System Audio Control:

it permits the volume of an AV receiver, integrated or preamplifier, to be controlled by using any remote control device from a suitably equipped device in the system.

Why you need HDMI-CEC?

HDMI-CEC permits the devices to connect to your TV with the HDMI ports to communicate back and forth again and again with your TV. The devices can have some control over the devices. This means that you could control your Blu-ray player through your TV remote. HDMI-CEC also has advantages with the game consoles.

HDMI-CEC Trade Names

  • AOC: E-link
  • Hitachi: HDMI-CEC (Thank you, Hitachi) 
  • LG: SimpLink or SIMPLINK
  • Mitsubishi: NetCommand for HDMI
  • Onkyo: Remote Interactive Over HDMI
  • Panasonic: HDAVI Control, EZ-Sync, or VIERA Link
  • Philips: EasyLink
  • Pioneer: Kuro Link
  • Runco International: RuncoLink
  • Samsung: Anynet+
  • Sharp: Aquos Link
  • Sony: BRAVIA Sync
  • Toshiba: CE-Link or Regza Link
  • Vizio: CEC

Advantages of HDMI-CEC

  • Use your TV remote to control some of the characteristics of devices connected to your TV via HDMI, reducing the requirement for universal remote control.
  • The same HDMI cables that connect your audio and video components can be used as a conduit for controlling those devices. 

Disadvantages of HDMI-CEC 

  • CEC functionality is not needed to be included on all HDMI-equipped devices.
  • On devices that consist of HDMI-CEC, characteristic access is not always consistent when using mixed brand components.
  • Not as the comprehensive control as if using the device’s consist remote or a universal remote.
  • In most of cases, HDMI-CEC should be activated for HDMI-ARC to also work.
  • Sometimes HDMI-CEC will activate or turn off the devices when you don’t even want it to.
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