Extra leads in mic cable allow remote sensing of mic switch closure
Small and inconspicuous
Additionally to the features of the CROWN PCC®-170 the CROWN PCC®-170SW/SWO offer a silent-operating membrane switch which is normally off. The switch can be configured for touch on/off, momentary on or momentary off. This configuration is set by a bottom-mounted DIP switch. A high-intensity LED lights when the unit is on. The microphones attenuate 70 dB when the switch is in the off position.
A pair of extra leads in the mic cable allow the CROWN PCC®-170SWO isolated remote sensing of the microphone switch closure. In a typical distance-learning application, a video camera would track to the person who switched on the microphone. Remote sensing is done by a patented opto-coupled MOS switching circuit. At the remote-sensing leads, the resistance goes low when the mic is on. The microphones attenuate 70 dB when the switch is in the off position.
