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DSPPA D7221 Desktop Digital Chairman Unit
- Power supply through PoE+48V network cable, support cascaded connection;
- With 5 inch TFT screen to bring the brand-new experience;
- DSPPA D7221 Digital Chairman Unit support IC card check-in (induction distance < 10mm), key check-in, and other modes.
- DSPPA D7221 Chairman Unit can be configured into chairman unit, VIP unit, delegate unit, translation unit, operator unit, and other management authority.
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Description
DSPPA D7221 Desktop Digital Chairman Unit Specs:
| Model | D7221/D7222 | |
| Structure type | Desktop | |
| Gain limited effective frequency range (±3dB) | A microphone in to B microphone out | 80Hz-7kHz |
| Host line in to the unit | 20Hz-8kHz | |
| Microphone to host line output | 80Hz-9kHz | |
| Speaker power | 1.5W | |
| Static power | <1W | |
| Maximum power consumption | 2W | |
| Signal to noise ratio | >80dB | |
| Crosstalk attenuation | >80dB | |
| Harmonic distortion | <0.5% | |
| Headphone output | 9dBu，8-32Ω，3.5mm | |
| Working power | Host power DC24V | |
| Unit interface | 8-pin DIN dedicated interface | |
| Microphone | Electret cardioid capacitive | Electret cardioid capacitive |
| Sensitivity | -45dBV/pa | |
| input resistance | 2kΩ | |
| Equivalent noise | 20dB(SPL) | |
| Maximum sound pressure level | 125dB(THD<3%) | |
| Package dimensions | 560×215×165mm | |
| Machine size | 218×120×50mm | |
| Gross weight | 2.5kg | |
| net weight | 1kg | |
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