SCTE 106 2005

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.

Details

Published:

01/01/2005

ANSI:

ANSI Approved

Number of Pages:

105

File Size:

1 file , 370 KB