| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of wires for transmitting a monitor control signal between a main signal processing circuit and a monitor control unit in a transport apparatus.SOLUTION: A plurality of main signal processing circuit 12 arranged for ports and extracting a monitor control signal from a main signal and a monitor control unit 20 receiving the monitor control signal from the main signal processing circuit 12 are daisy-chained in a ring shape with a serial interface 14. A serial frame having a mapping field where the monitor control signal is mapped is transmitted to the serial interface 14. |
