SCTE 106 2018 (R2024)

DOCSIS® Set-Top Gateway (DSG) Specification

The DOCSIS Set-top Gateway (DSG) specification defines an interface and associated protocol that introduces additional requirements on a DOCSIS CMTS and DOCSIS CM to support the configuration and transport of a class of service known as "Out-Of-Band (OOB) messaging" between a Set-top Controller (or application servers) and the customer premise equipment (CPE). In general, the CPE is intended to be a digital Set-top Device, but may include other CPE devices, such as Residential Gateways or other electronic equipment. Figure 1–1 provides the context for this standard in relation to the data-over-cable reference architecture and the other interface specifications in the family.