| 摘要 |
PURPOSE:To make a device compact and to write massive data by doubly providing data write devices and using a cartridge tape as a recording medium in a communication system such as a movable radio base station. CONSTITUTION:The communication system 1 consists of a telephone public network, a line controller, a base station radio equipment and a radio terminal. Data generated in the communication system 1 is preserved by the data write devices 2 and 3, dual port RAM 4 transmitting and receiving data and memories 8 and 9. The data write devices 2 and 3 respectively have cartridge tape (CT) devices 6 and 7. Data received in the first data write device 2 is accumulated in the memory 8 and is transmitted to the second data write device 3 via dual port RAM 4, whereby it is accumulated in the memory 9. When there is data for the write unit of data, data is written into CT devices 6 and 7. |
