| 摘要 |
PROBLEM TO BE SOLVED: To obtain a control system where replacement of an input signal to an MTX switcher is simple and remote control is attained by adding an EEPROM to a control CPU so as to change a control address. SOLUTION: When a control signal from a control section 5 is given to a CPU 3, address information set by an EEPROM 4 is read and one of signals given to a voice MTX device 2 is selected and outputted externally via the output terminals OUT1-3. In the case that an analog voice signal given to, e.g. the input terminal 1a is changed into a digital signal resulting from the updated device, the digital signal is given to any of input terminals 1d-nd that are grouped. In this case when control of selecting an address signal from the control section 5 is conducted, the CPU 3 reads address information of the EEPROM 4 to read that the address is revised into an address to which the digital voice signal is given. Thus, modifications required conventionally are avoided.
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