| 摘要 |
PURPOSE:To carry out the opposition test for the slave station with which the fault repair is through without affecting the normal operation of other stations by securing the switching to the signal transmission system utilizing the repeating equipment of the slave station having some fault and using the distance between the adjacent slave stations up to the maximum transmissible distance. CONSTITUTION:Master station 5 is connected to electronic computer 1 and then transmits/receives the signals between slave stations 3a, 3b and 3c each via cable 6 and 7. In case station 3b has some fault, a switching is given to perform the signal transmission via repeating equipment of station 3b. Thus, the distance between the adjacent slave stations can be used up to the maximum transmissible distance, and at the same time the opposition test can be carried out without affecting the normal operation of other stations between the master station and the faulty slave station with which the repair has been through. |
