NBW-B1
Sickbed Substation
Nurse CallingBedsideAnalog
Key Features
- Call/cancel to master station and ward door substation
- Duplex visual intercom with the master station
- Listen to MP3 broadcast and notice from master station
- Spring-line handset with 3M maximum tension
Specification
Electrical
| Bus protocol | FSK, DTMF |
| Input voltage | DC12V ~ DC24V |
| Harmonic distortion | ≤ 0.3% |
| MIC input sensitivity | 10mV |
| SNR | > 70dB |
| Line Out output impedance | 300Ω |
| Line In input level | 16V ~ 31V |
| Power | ≤ 2W |
| Frequency response | 200Hz ~ 16KHz |
| Built-in speaker impedance/power | 20Ω, 1W |
Physical
| Work temperature | -20°C ~ +80°C |
| Working humidity | 10% ~ 90% |
| Spring line length | 3M (max tension); 80cm (hanging) |
