What is a CMTS and how does it relate to a cable modem?
The cable modem termination system (CMTS) is the unit that is purchased by and resides at the cable operator’s facility, and acts as the connection between the cable network and the outside network. CMTSs are termed “qualified” when they pass an interoperability test procedure similar to the modems. Qualification ensures the cable operator or a broadband service provider that the headend equipment will interoperate with certified cable modems. Please see our list of DOCSIS-Qualified CMTSs.
