This standard addresses user control of remote A/V devices on home networks.

It defines mechanisms that allow the A/V devices to present status and control user interfaces on a network-attached renderer, and specifies a method for encapsulating this UI data using Web and Internet protocols.

User control is exerted through a browser and graphical user interface that is contained in the rendering device. The design of these graphical and user interfaces is determined solely by the implementers of this standard, and may utilize any content design up to and including the full capability of the devices and network technology.

Annex A is normative for implementations utilizing IEEE 1394. Future versions of this standard are expected to address other home networking technologies in additional Annexes.

This specification describes the minimum capabilities of the client browser and the controller/server. A compliant browser may have additional capabilities for worldwide web surfing, E-Commerce, or Enhanced TV applications, but that is out of scope for this standard.

A renderer in the current version of this standard may be a DTV or a PC, but other rendering devices are anticipated. A/V devices may include a source of home-network content, such as a cable or terrestrial set-top box, digital VCR, or DTV.

Warning: CEA-2027-B requirements are not a backward compatible extension of those in the CEA-2027-A specification.