When microphone or/and speaker are defective the audible signal raise this alarm to the trafic controller using one 230 line.
If the intersection don't have a push button the "yellow" for the pedestrians shall be used to this.
Shall we require all audible signals use the samme cable?
emiltin
commented
3 years ago
New Alarm regarding Audible signals
When microphone or/and speaker are defective the audible signal raise this alarm to the trafic controller using one 230 line. If the intersection don't have a push button the "yellow" for the pedestrians shall be used to this.
Shall we require all audible signals use the samme cable?
/Rafael