| 摘要 |
PROBLEM TO BE SOLVED: To use one common connector as an output connector for feeding an internal input information signal, to an external electric-information switching means, and as an input connector for feeding an external input information signal to a switching means. SOLUTION: This switching device for an information signal is provided with a switch FWS-1 switching internal and external input information signals; a common connector J used both as an output connector for feeding the internal input information signal to an external electric-information switching means and as an input connector for feeding the external input information signal to the switch FWS-1; a switch JSW turned on-off depending on whether an external connector led from the external electric-information switching means, or an external connector to which the external electric-information signal is fed is connected to the common connector J or not; a switch FWS-2 switched being interlocked with the switch FWS-1; and switches SO2, SO3 switching whether the internal input information signal is fed to the common connector J or not. |
