• SCTE 106 2005
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SCTE 106 2005

  • DOCSIS Set-Top Gateway (DSG) Specification, (formerly DSS 04-02)
  • standard by Society of Cable Telecommunication Engineers, 01/01/2005
  • Publisher: SCTE

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The DOCSIS Set-top Gateway (DSG) specification defines the interface requirements on a DOCSISCMTS and DOCSIS CM to support the configuration for transport of a class of service known as "Out-Of-Band (OOB) messaging" between a Set-top Controller (or application servers) and the customer premiseequipment (CPE). In general, the CPE is intended to be a digital Set-top Device, but may include otherCPE devices, such as Residential Gateways or other electronic equipment. Figure 1-1 provides the contextfor this specification in relation to the data over cable reference architecture and the other interfacespecifications in the family.Traditionally, the physical transport of this Out-Of-Band messaging has been carried over dedicatedchannels, as specified by [ANSI/SCTE 55-1] and [ANSI/SCTE 55-2]. This specification defines theapplicable communications standards and protocols needed to implement an Out-Of-Band messaginginterface to the Set-top Device using DOCSIS as a transport. It applies to cable systems employing HFCand coaxial architectures. Specifically, the scope of this specification is to:
  • Describe the communications protocols and standards to be employed
  • Specify the data communication requirements and parameters that will be common to all units
The intent of this document is to specify open protocols, with a preference for existing, well-known andwell-accepted standards. This interface specification is written to provide the minimal set of requirementsfor satisfactory communication between the Set-top Controller and the Set-top Device over the DOCSIStransport. "DOCSIS Set-top Gateway" (DSG) shall be the general term used to describe this interface.

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