COMMUNICATION EQUIPMENT OF LINEAR COMMUNICATION NETWORK

PURPOSE:To prevent the utilizing efficiency of a line from being decreased, by presetting the right of transmission of data according to the predetermined sequence so as to circulate the right in each subscriber station terminal. CONSTITUTION:A controller 15 of a linear communication network interface 2 having the right of transmission of data represented with a presettable counter 16 makes a modulator 9 output the data or a carrier only to the linear communication line 1. On the other hand, the controller 15 of a linear communication interface not having the right of data of transmission detects the movement of the right of data transmission from the intermission of the carrier on the line 1 detected by a detector 10. Further, the counter 16 of each interface 2 presets the right of transmission so that it is circulated in each subscriber terminal station according to the predetermined sequence.