PI 1A Broadcasting interface

The PI-1 Broadcasting Interface integrates broadcast features with the phone and replaces the fixed microphone. Use the PI-1 on the "Page" port on the telephone or if it is not available on a free analog trunk port. The audio output goes to the (existing) broadcasting amplifier and speakers. It is also possible to leave the broadcasting background music system and electronic night bell sound. 

Electronic night bell function reacts to AC ring voltage from an analog phone or by offering a potential free contact. 

The PI-1 has an integrated, voice or AC ring voltage controlled relay with normally open and normally closed to mute the background music during the broadcast. 

- 600 ohm audio output. 
- 12Vdc voice voltage for connection to analog trunk port. 
- Suitable for "Page" port on telephone. 
- Analog phone input for night bell function. 
- Contact input for night bell function. 
- Voice-controlled make and break contacts mute background music. 
- Adjustable silence timeout. 
- Adjustable night bell volume. 

- Power supply 12Vdc 500mA. included. 
- Size: 133mm x 89mm x 44mm. 
- Shipping weight: 0.45 kg 
- Setting: 0 ° C to 32 ° C / 5-95% humidity 
- Relay: 30V DC @ 1 Amp / 110V DC @ 0.3Amp / 125V AC @ 0.5Amp 
- Minimum speech signal to control actuator 50mV AC RMS @ 1K Hz 
- Speak for outside gate voltage connection: 12V DC