Summary
International Symposium on Electromagnetic Compatibility
2009
Session Number:22R2
Session:
Number:22R2-4
Influence of Different Configurations of Premises Cable on the Interference Immunity of VDSL Systems
K. Takaya,
pp.369-372
Publication Date:2009/7/20
Online ISSN:2188-5079
Summary:
The link between VTU-O and VTU-R is influenced by electromagnetic interference induced into the premises cables in customers' premises. The influence of different configurations of premises cables on the immunity of VDSL systems is investigated in this paper. The results show that when premises cable is bent back and forth or in looped in a coil, the longitudinal conversion loss (LCL) is greater than when the cable is laid in a straight line. There is a correlation between the value of induced voltage which causes the link to fail and the LCL, regardless of the configuration of the premises cable, because a decrease in LCL results in an increase in the strength of the differential-mode interfering signal.