CableLabs issues 'Set-Back Box' specification

Friday, January 22nd, 2010 
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CableLabs has issued its OpenCable Host Thin Chassis Device Core Functional Requirements Specification (HOSTTC-CFR).

The document describes the requirements for the OpenCable Host Thin Chassis Device (OCTCD).

The goals and objectives of the OCTCD are:

  • Reduce the cost of OpenCable-compliant set-top devices;
  • To receive digital premium (scrambled) cable services via an interface with a CableLabs-Qualified CableCARD Device;
  • To support interactive and two-way services through standardized Out-Of-Band (OOB) and DOCSIS® data channels and direct connection to the cable plant.

Below is more detail on the basic functionality of the OpenCable Host Thin Chassis Device.

  • Digital QAM signal processing only;
  • Two-way connectivity support via both ANSI/SCTE 55-1,-2 OOB and DOCSIS with DSG functionality;
  • OpenCable Application Platform (OCAP) support;
  • MPEG2 Main Profile @ Main Level ([email protected]) Standard Definition and Main Profile @ High Level ([email protected]) High-Definition decoding;
  • AVC Main and High Profile @Level 3.0 and 4.0 that cover Standard and High Definition decoding as specified in [SCTE 128];
  • MPEG-1 audio (Layer I, II & III);
  • MPEG-4 AAC, MPEG-4 HE-AAC and MPEG-4 HE-AAC-v2 audio;
  • High-Definition Multimedia Interface (HDMI) output (source) with CEC capability and HDCP encryption.

More: OpenCable Specifications