| 摘要 |
PURPOSE:To change the conversion format of a transmission burst signal train, by obtaining signals for address control of an RAM through the use of an ROM easily and changing the content of the ROM. CONSTITUTION:A terminal station signal T of constant frame constitution is sectioned into some bits at a shift register 1, stored temporarily for parallel- serial conversion and stored in the order of address of an RAM2. In reading out a terminal station signal from the RAM2 through the conversion of bit arrangement of a burst signal for transmission for the bit arrangement of the terminal signal train, an address control signal of the RAM2 is produced at an ROM5. The bit arrangement of the signal read out from the RAM2 in the order of addresses produced with the ROM5 becoms the bit arrangement of the transmission burst signal and this is tentatively stored in a shift register 4. Further, the transmission burst signal forming a constant frame constitution can be transmitted from the shift register 4. |
