| 摘要 |
PURPOSE:To eliminate the AC/DC conversion part of a data recorder and to reduce its cost, size, and weight by supplying the DC power of a personal computer to the data recorder through a cassette interface. CONSTITUTION:An AC/DC conversion part 1 converts AC power into DC power, which is supplied to the personal computer 2. A cassette interface 3 while transmitting signals between the personal computer 2 and data recorder 4 supplies the DC power generated by the AC/DC conversion part 1 to the data recorder 4 through a power line 5. In this case, a power supply terminal of the connector of the cassette interface 3 is predetermined and a determined terminal is connected to supply electric power. Consequently, the AC/DC conversion part for the data recorder is not necessary. |
