TELEPHONE LEAD-IN CABLE FOR ORDINARY, VOICE SERVICE AND HIGHPERFORMANCE DATA AND VIDEO TRANSMISSION SERVICES

摘要

A SVDL (voice, video, data, and lead-in) type telephone lead-in cable permitting the connection of the users to the public telephone system with a high speed digital service link, besides the analog services required, characterized because it consists of two transmission circuits, one of them formed by two conductors cooperating in turn to self-support the whole cable; and being the second circuit formed by a twisted pair of conductors.