| 摘要 |
PURPOSE:To attain ease change in system constitution and to make economical constitution possible, by providing a frame counter and a channel control table to a common control section and discriminating whether or not a line corresponding section of itself is selected based on the information. CONSTITUTION:A transmission line controlling section 13 of the common control section 4 adds the frame counter FC 14 by +1 when one time slot TS is received. The counted value is an address of a channel controlling table 16. When the content of an area of a control table 16 corresponding to the received TS is other than an underfined number, the content and the data of the received TS are transmitted to each circuit corresponding section 5 in common. When the content is the underfined number, the common control section 4 waits for the reception of the next TS. The line corresponding section 5 performs a comparison and collation between the notified corresponding number and the corresponding number of a TS controlling area 12 in the line corresponding section of itself at a TS comparison section 15. When both are coincident, the line corresponding section 5 transmits the data of the said TS to a terminal 10 or a data processor 11. |
