Implementing IS-15 Cooperative Efforts to Establish a Standard for Attaching CATV Decoders Directly to TV Receivers & VCRs

For many years the cable TV industry and the consumer electronics existed, seemingly unaware of each other's existence. About four years ago there began a cooperative effort to solve problems of concern to both industries. The effort has consisted primarily of developing standards for attaching TV receivers and VCRs directly to the cable without the necessity of active adapters such as converters and/or descramblers. The effort has taken place under the auspices of the EIA's Consumer Electronics Group (CEG) Television Receiver Committee (R-4) and the National Cable Television Association's (NCTA) Engineering Committee. This effort has resulted in the establishment of Interim Standard No. 6 defining the cable channel identification plan. This standard has been designed to ascribe uniform number assignments to all cable channels tuned by TV receivers and VCRs. Interim Standard No. 23 was developed to define the RF interface between TV receivers and VCRs, and CATV systems.