| 摘要 |
PURPOSE:To transmit a simultaneous-transmitting message such as information on announcement at an abnormal congestion time to several subscribers. CONSTITUTION:At the time of simultaneous transmission, announce unit AN is actuated which generates a message to be transmitted simultaneously, and message information generated by AN is sent to any time slot of down highway HW2 via time-division switching channel network TDSW. Simultaneous-transmission assignment information is written in the address part of subscriber's s-number holding memory LNM assigned by this time slot. This simultaneous-transmission assignment information, when read out, decoded as one of subscriber's numbers by decoder DEC0 and output 1 is sent out to simultaneous-transmission command terminal (w) of DEC0. Number information LN, on the other hand, is sent to a subscriber, to which the message should be transmitted, and then decoded by decoder, DEC1, thereby allowing fixed gate AG to open. |
