An impact of resistive impairments in in-house cabling system on IPTV QoS
This paper analyses an influence of some primary parameters on some physical layer parameters for DSL (Digital Subscriber Line) transceivers. Main intention of this paper is to show that some very frequent and very intensive serial and shunt resistive faults in in-house cabling system in some circumstances will not always significantly impact on IPTV (Internet Protocol Television) QoS (Quality of Service) parameters. Detailed description of experiments and results of significant number of testing on a real system in practice are given. The testing is implemented under very different condition in terms of resistive faults and in period of several days. Object of observation is a pair from 1000 pairs copper cable with air-paper insulation, lead sheath and star-quad as stranding elements. The length of observed pair is 1570 metres.