Integrated Services Units - (ISUs) – Television and telephony signals/data can travel through ISUs to and from the subscriber. ISUs can be located externally or internally to the residence. External units are environmentally-hardened and provide secure access for the service tech. External units also offer a limited amount of access to the consumer. ISUs can consume less power on average than cable modems.

Full-Service Integrated Interactive TV

Integrated High Definition TV Sets (HD IDTV)

Interactive Digital Television

IRS - Integrated Reception System

IRT – (Integrated Receiver Transcoder)