| 摘要 |
PURPOSE:To provide an excellent water-proof rope capable of communicating with optional number of optional partners and eliminating jamming and wire tapping. CONSTITUTION:An optical fiber 2 is built in a traction rope 1, and a terminal device 4 to take in and insert an optical signal is provided on a position in a vehicle such as a gondola 3 to be towed. Thus, an effect of compressing total investment in plant and equipment can be expected in addidition to the service having a wide range and high value added which has been impossible conventionally. |
