| 摘要 |
PROBLEM TO BE SOLVED: To make it easy to recognize an alarming sound even if one is in a room away from a distribution board and to recognize a call through an interphone even if one is at the place where the board is installed, by providing a distribution board equipped with a peak-cut controlling device and an interphone that generates an alarming sound which tells the conducting state. SOLUTION: A peak-cut controlling device PC is stored in a distribution board and an alarming sound generating means AG is provided on the PC. A power amplifier PA amplifies power to feed it to a speaker SP, an externally connected speaker SO and a master interphone IP. This structure allows an alarming sound from the PC to be recognized not only at the place where the distribution board is installed but also at the place where one spend most of the time. In addition, a calling sound through the interphone can be recognized without adding an extension calling speaker even if one is in a kitchen or a washroom where the distribution board is installed. |
