| 摘要 |
PURPOSE:To make a circuit simple by providing a register numbered successively corresponding to respective channels of the transmitting frame, at the terminal of respective node stations of the line exchange type loop network, and exchanging the data. CONSTITUTION:The terminal of respective node stations has the register numbered successively corresponding to respective channels of the transmitting frame. When the access is executed to a channel No. of a table by using a channel No.3 of the output of a channel counter 2, a terminal No. is outputted from the register, and at the channel of a transmitting frame 1 which is passing through the receiving transmitting port, the terminal to be accessed can be easily known.
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