US cable industry research, development and standardization body, CableLabs, has released a set of specifications which it says defines a common set of interfaces for converged video and broadband services in a modular cable network headend. The so-called Modular Headend Architecture (MHA) specifications include the existing DOCSIS Modular CMTS specifications, as well as a series of new specs that define interfaces for narrowcast MPEG digital video services, such as VOD and switched digital video.

The new specs are the result of an effort conducted at CableLabs that involved a number of headend equipment manufacturers and cable operators. They are being billed as providing a “point of harmonization” between the Time Warner Cable-led Interactive Services Architecture (ISA) and the Comcast-led Next Generation on Demand (NGOD) architecture, both of which are used throughout the industry. “This is important because, for the first time, we have an interoperable set of specifications that will lead to integrated equipment from multiple suppliers for delivery of advanced video and data services,” Comcast CTO, Tony Werner, said in a prepared statement. Added Time Warner Cable CTO, Mike LaJoie: “Once again our industry’s suppliers have worked with us through CableLabs to achieve a common approach which benefits the whole industry and our suppliers.”


CableLabs Releases New Modular Headend Architecture Specifications itvt