Coaxial copper cables

Written on 10:54 AM by ooe

The dominant usage of coaxial copper cables in access has been to provide the bearer for analogue cable TV networks. Where the existing allocation of RF spectrum to the broadcast TV signals permits, unused spectrum may be used for data transmission between terminals known as ‘cable modems’ (640 kbit/s is typical). New cable TV network architectures, particularly hybrid fibre-coax are being deployed. The final customer connection is over a much shorter coaxial cable than the original all-coax network, implying that end-to-end transmission at a higher data rate will be possible with this new architecture.