Technical Specifications
| Bus protocol : FSK, DTMF | Input voltage : DC12V~DC24V |
| Harmonic distortion : =0.3% | MIC input sensitivity : 10mV |
| SNR : > 70dB | Work temperature : -20~+80 degrees |
| Line Out output impedance : 300O | Working humidity : 10%~90% |
| Line In input level : 16V~31V | Power : =2W |
| Frequency response : 200Hz~16KHz | |
| Built-in speaker impedance and power : 20O, 1W | |
| The spring line length: 3M (maximum tension); 80cm (hanging) | |
Functions
- Call/Relieving: Available to call the master station for nurse station and ward door substation and cancel the call
- Duplex Intercom: Duplex visual intercom with the master station.
- Broadcast Function: Listen to the MP3 broadcast and notice from the master station



