#transmission_line__cable__line  a conductor for transmitting electrical or optical signals or electric power
  supertype:  conductor  transmission_object (comms)
  part of:  cable_television_service  telephone_system
  subtype:  coaxial_cable__coaxialcable__coax__coax_cable  a transmission line for high-frequency signals
     subtype:  ethernet_cable  any of several types of coaxial cable used in ethernets
  subtype:  electrical_cable  a cable that provides an electrical connection for telephone or television or power stations
  subtype:  fiber_optic_cable__fiberopticcable__fibre_optic_cable__fibreopticcable  a cable made of optical fibers that can transmit large amounts of information at the speed of light
  subtype:  power_line__powerline__power_cable__powercable  cable used to distribute electricity
  subtype:  printer_cable__printercable  a cable between a computer and a printer

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