| 摘要 |
<p>PROBLEM TO BE SOLVED: To switch an interface(I/F) for cable communication and an I/F for radio communication each other without interrupting communication. SOLUTION: When the communication is started by a cable I/F#1 16, an I/F switcher 2 detects whether the destination currently communicated through a radio I/F 18 or a cable I/F#2 17 can be accessed or not. When an output signal showing the cable I/F#1 16 is not connected with a network cable is inputted to the I/F switcher 2 by a cable attachment/detachment detector 3, the cable I/F#1 16 under using is switched to the usable I/F while continuing the current communication.</p> |
