{TAIL ~ second announcing means} connected to said switch for carrying out said announcement in {HEAD ~ a second announcement mode} only during a predetermined time duration after operation of said switch 
{ TAIL ~ second announcing means } connected to said switch for carrying out said announcement in { HEAD ~ a second announcement mode } only during a predetermined time duration after operation of said switch
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH